How to choose a better chain for chainsaws. The value of the chain chain chainsaw pitch chain step 3 8
The choice of gasoline saws is determined by several criteria. One of them is the chain step chainsaw. This parameter determines the capabilities of the equipment of the sawing of materials and must correspond to the engine power, only in this case it will be possible to extend the life of the tool and reduce specific consumption Fuel.
The concept of step and its meaning
Under the circuit's step implies the distance between any three rivets. In chains for saws, this length characterizes the remoteness of two cutting teeth relative to each other. The step value is equal to the length between the vertices of two adjacent chain shanks (guide elements that are included in the tire grooves). In order to correctly determine the step of the chain chainsaws, measure the distance between the axes of three rivets flowing in a row.
There is a reasonable pattern, which states that the larger the distance between the cutting teeth of the chain, the deeper they enter the sawn material. Increasing chain chainsaw, you can increase its performance. In this case, respectively, an effort is changed to rotate the drive asterisk. It is required to understand that the higher the step, the more power you need to apply for its broach during the sawing of the material and the greater the engine power should be.
Modern producers of gasoline saws use three main types of sawing chains with the following steps, measured in inches:
- 0.325;
- 0.375 (apply in the classification labeling 3/8);
- 0.404.
The quality and accuracy of the required cut in the material depends on the chain step. If the quality of cutting during the operation of the chainsaw has no global value, then the accuracy of the cut is sometimes important when there is a log of logs or boards, for this you need to take into account the dependence of the saw step on the dissolution of wood on specified marking.
The selection of the chain indicates that the step between the teeth is directly proportional to the performance, the power supply of the motor and inversely proportional to the accuracy of the cutting created.
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Matching engine power and distance between cutting chainsaw chains
Based on data obtained experienced wayIt is recommended to choose a chainsaw, considering the ratio of the power of the drive and the distance between the cutting edges. It is known that the higher the step, the more power you need to apply to rotate the drive asterisk and the greater should be the maximum torque developed by a gasoline engine.
To properly select the desired tool configuration, you must use the minimum power values \u200b\u200bfor each of the three chain steps.
Critical indicators of power of gasoline engines rotating drive:
- step 0.325 "- Power of at least 1.8 hp (1.47 kW);
- step 3/8 "- Power of at least 3 hp (2.21 kW);
- step 0.404 "- Power of at least 4.5 hp (3.31 kW).
If the power of the leading engine is less than the specified values, then the following phenomena are possible when the RPPC process is possible: the chain is entered in the tree, the reduction in the speed rotation rotation, leading to the overheating of the motor, increasing the time of sawing and increased operational expenditures on fuel.
The use of powerful chain engines with a small step is inappropriate, as it will also increase the dissolution time and an increase in fuel costs. However, this combination is allowed with the need to make accurate works with wood.
Specified minimum values \u200b\u200bof the characteristics of the drives show the ability of confident equipment, but do not show the time of its uninterrupted use in a professional environment. Rather, these values \u200b\u200bare given as recommendations for the implementation of episodic works or for the operating conditions of the tool with long interruptions. For long-term use of equipment that means professional regime, the following compliance of technical data is required:
- step 0.325 "- Power 2.5 hp (1.84 kW);
- step 3/8 "- Power 4 hp (2.94 kW);
- step 0.404 "- Power 6 hp (4.41 kW).
The choice of the tool should not be justified by the desire to have the highest possible step of the chain, so it entails the presence of a powerful motor, long tire, which significantly takes the saw.
And if it, for example, will be used episodically or for dacha workthen such a choice is inappropriate.
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The dependence of the step from the additional characteristics of the saw chains
During the movement of the chain and cutting wood, there are very high loads, in connection with this an important characteristic It is the thickness of the element of the link included in the groove of the tire and sliding in it. This value also shows the thickness of the fastening elements of the links. It can be measured by an ordinary caliper.
Typical values \u200b\u200bof the thickness of the guide element:
- 1.1 mm;
- 1.3 mm;
- 1.5 mm;
- 1.6 mm;
- 2.0 mm.
Thickness 1.1 and 1.3 mm are used to make the entry-level chains designed to carry out minor work. Most often the length of the step at these values \u200b\u200bis 0.325 ", which implies gentle mode and low loads.
1.5 mm value - the most occurring chainsaws and components in the market, this value is enough to provide safe work With step 3/8 ". However, this value will always say that the chain is not intended to conduct professional activities.
Guides that have thicknesses 1.6 and 2.0 are designed to keep the most complex works, that is, allowing the use of equipment. At the same time, you need to know that these two values \u200b\u200bare a specific classifier indicating that the metal for the manufacture of these chains is paid from special steel grades, that is, enhanced in the design of increased strength.
All manufactured chains may differ from the cutting depth. It is characterized by the height of the cutting tooth (profile). The height is measured between the upper shelf of the cutting edge and the limiter (all this is on the same segment). There are low-profile and high-profile chain products.
The higher the profile, the higher the entrance to the wood and, respectively, the speed of sawing. The profile height affects the occurrence of vibrations that can cause elevated drive wear or the problematicness of the tool hold in their hands, the higher the cutting part, the stronger the vibrations are. Also, a high-profile chain requires increased engine power.
Household chainsaws always have a low profile chain. Professional devices combine different variantsBut always adhere to the fact that if the chain is with a big step, then its profile is low, and if step 0.325 profile makes high.
Such variations create the opportunity to increase the cutting speed not with a step, but a profile height (propyl depth). Nevertheless, most of the professional tools for the forest rolls make an emphasis on increasing the step, not the profile height, arguing that chainsaw in such an option is more controlled.
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Some important moments when choosing chains or chainsaws
There are other indicators that affect the productivity of the instrument and the specifics of the work.
- geometry of the cutting tooth (profile);
- number of cutting units;
- type sharpening the cutting edge of the link.
The cutting profile has two types: Chisely and chipper. The first option has a straightforward working surface And is more productive. The second type has a gray-shaped form and reduced performance. In maintenance, the chipper chain is easier, as it is easier to sharpen it, it does not need hard observance of sharpening angles. Chisel options are more often applicable in 3/8 and 0.404 increments. "
The number of cutting teeth is always determined by their relation to the number of guides of the saws included in the tire. That is, the link with cutting part He has two link guides. If this combination is not observed, this means that the chain of dubious production.
The type of sharpening cutting profiles is regulated by the type of future work. Usually, classic chainsaws are used for cross-cutting wood and extremely rarely for longitudinal. In rare cases, there are chains with cutting links that have orientation for longitudinal cuts.
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By purchasing the tool, it is necessary to clearly represent the areas of its use and, depending on this, determine the desired step of the chain.
Chain links: A - cutting or cutter, b - castle.
Conditional types of use chainsaws from private users:
- trimming branches in the garden, uncomplicated country work;
- individual construction, wood harvesting, episodic trees roll;
- frequent use (implying work on hiring), the workpiece of very large amounts of firewood, operation in its own workshop.
In the first version, a chainsaw is recommended having a chain with a small (0.325 ") step. This will allow you to get a lightweight and maneuverable tool, easy to pruning branches, including lifting potted stairs and branches of trees. This equipment allows you to carry out uncomplicated wood, and episodically allowed the roll of small trees.
The second option involves the choice of saws in 3/8 "and the thickness of the guide link is at least 1.5 mm. Similar saws allow you to easily carry out the entire complex of work on the maintenance of the site, a small workshop, harvest the stock of firewood for the winter.
The third option offers the use of chains 3/8 and 0.404 "in a pair with powerful engineSince the list of work performed is intended only for the professional instrument, while it is important to take into account the thickness of the guide link, it must be 1.6 or 2.0 mm. Steel for the manufacture of such chains is made taking into account possible overheating during wood dissolution without losing the hardness of the cutting edges of the links.
The interchangeability of the chains is allowed only on the manufacturer provided by the manufacturer. This is explained by the number of teeth of the drive asterisk, which is calculated only under a certain distance between the links. The chainsaw tire has a groove under a certain thickness of the guides, this should be considered when changing the chain.
Replacing the drive asterisk for a larger step is not recommended due to the occurrence of the inconsistency of the power and loads during the dissolution of the wood. The weak motor will not develop the required power to pull the cutting units on a tree, which will lead to a jamming or failure of the drive and clutch.
The most universal chain has step 3/8, it gives the possibility of multilateral use combined with high speed Reza and a fairly accurate cut line, satisfactory grinding of wood fibers.
Even with the most neat operation, the chainsaws owner sooner or later faces the need to replace the saw chain. The range is represented by several species that are characterized by a step, configuration of cutting links and other indicators. The best chain for chainsaws is a model recommended by instructions for use.
The guide bus and chain refer to interchangeable equipment, so the owners of budget chainsaws are given the opportunity to choose a more wear-resistant and durable in the work of the saw kit.
Photo: chain for chainsawsThe desire to increase the productivity of the saw by setting a longer headset, can be implemented only if the engine has a sufficient capacity and rotational torque.
Self pick up the chain for chainsaws optimal in terms of cost and the working parameter is best after consulting an experienced specialist. Incorrect selection of component elements of the headset can reduce the performance of chainsaws or initiate it front end out of service.
The quality of budget and branded chains is significantly different. Many owner owner household chainsaw Prefer to exploit their techniques with more perfect pylon headsets of the leading brands of County, Huskvarna and Oregon. The informal rating recorded the growth of consumer demand for similar products of Hammer and PowerSharp brands.
Standard Length Household saw tires with a capacity of 2-2.5 hp It is 40-45 cm. The size of high-performance professional class analogs comes up to 70 cm.
Higher price level of branded tires and chains is compensated high quality Complex sawing works, an increased resource, the stability of performance throughout the entire time assigned by the service life.
Properties of wear-resistant chains of general and special purpose
Designed to work with wood types of chains of household and professional class are characterized by the quality of the material by the duration of the resource and the cost. Designed for concrete, a unique wear resistance diamond chain belongs to the category of special emergency rescue equipment.
One of the options for choice can be a wear-resistant carbide chain. The interremmer resource of such a product is an order of magnitude higher, but it is necessary to sharpen it special equipment, allowing to sharpen the cutting links at different angles, respectively, for standard transverse and for longitudinal sawing.
The carbide chain is designed for productive sawing solid wood and light building blocks. It should be borne in mind that when working on a gas concrete or foam concrete, the saw headset resource, even the most prestigious brand decreases by 2-3 times.
Step Hall Chain Characteristics
The selected chain must correspond to the length of the guide of the tire and the characteristics of its design. One of the main parameters of the selection of the chain is its step, which is traditionally measured in inches.
In the cutting headsets, the chainsaw of the household group is operated smooth in the go and safe in work 3/8 inch chains, in the metric standard - 0.325 mm.
Analogues with an increased type 0,404 step are designed to configure powerful and productive chainsaws of a professional level, so in household chainsaws are practically not used.
Independent installation The headsets with an enlarged step must be necessarily coordinated with the type and traction characteristics of the force aggregate.
Parameters of shank
No less important condition right choice The saw chain is the thickness of its shank, which varies in the range from 1.1 to 2 mm. In an inch standard, shanks are presented in size, respectively, 0.043 / 0.04 / 0.05 / 0.058 / 0.063 and 0.08 inches.
Chains S. minimum thickness Operated in the light of the low-fledged budget level models. In domestic and semi-professional chainsaws, resistant to permanent and alternating loads, with a thickness of 1.3 to 1.6 mm, resistant to permanent and variable loads. Enhanced chains with 2 mm shanks, professional chainsaws are equipped.
Construction features
In the middle and high class chains, each cutting link is equipped with two shanks, which inevitably affects the increase in its value. Owners of own chainsaws are offered more accessible at the cost of a flow or semi-plow-type model.
In the first case additional elements Chains are arranged immediately after the cutting link. In the second embodiment, the connecting elements are mounted after each second pair.
In standard, bandwidth and semi-pouring circuits, the number of saws is respectively 50, 40 and 37.5 percent. Simplification of the design of cheap products is inevitably accompanied by an increase in the load on the sawing links, the need for frequent sharpening and the reduction of its service life.
Length
This chain indicator is determined by the number of links. The leading manufacturers indicate the accompanying documentation of the chain length in inches or the number of links. With an independent purchase of any model, it is recommended to know both parameters.
Features of the design chains of professional level
The proposed range can be divided into chains with chisel and chipper configuration of the cutting links. In the first case, the link in the section has a similarity with the number 7. Such a profile provides an increased performance of sawing work of increased complexity.
Significant lack of chisel "seven" - complexity hand sharpeningSince even a minor deviation from a given angle, the main advantages of the seven profile are annulled.
Chipper units have a gray-shaped form. An enlarged area of \u200b\u200bcontact with the sawn wood creates additional loads on the engine. In a positive plan, the design of chipper chains is valued for the stability of the work at a high level of pollution and less strict requirements for the accuracy of the conversion of cutting edges.
Types of materials
Standard saw chains are made of high-quality chromiumkel steel. To work with dense and frozen wood, a chain with carbide links is recommended. Significant drawback of such models is the increased value and the need to use special sharpening equipment with corundum nozzles.
Depth of sawing and chain profile height
These parameters should know the owners professional modelswhich drag chains manually at home. The depth of cutting is regulated by a decrease in the height of the stop of each cutting link.
The parameters of the low profile and high-profile chain respectively 0.025 and 0.03 inches. Knowledge of profile types is necessary for the correct selection of the height of the limiters.
Models of chains for transverse and longitudinal sawmills
The main range of saws with the cutting angle of the cutting links 25-35 ° is intended for standard transverse wood cutting. Models for longitudinal sawmills in the domestic market are present in minimal quantity.
If necessary, the problem of deficiency is simply solved by changing the cooling angle of standard circuits to 5-15 °. The tire in this version is operated without changing the design.
All listed information is valid for Chinese chainsaws and their components. Most Chinese chainsaws make up more or less successful copies of leading European developers, so all standards are almost identical.
How does the need for sharpening a chain?
The blotted chain teeth significantly increase the cutting time. The malfunction is manifested by increased vibration, inverse impacts when entering the headset in the propyl, the release of shallow shavings and the obvious smell of burned wood.
With the help of a manual grinding device installed on the headset, cylindrical and flat files, the cutting edge of the saws is restored without removing the chain from the tire. A more perfect and productive way is the conversion of the chain in a specialized workshop.
It gives a significant time gain, guarantees the same angle on all the cutting elements of the chain. Custom feedback on automated sharpening for most positive. The negative plan marks the template finishing of each sawing service, without taking into account its wear and other individual characteristics.
Recommendations Properties and saw chains
A significant part of the headset operated does not fully produce a designated resource.
The main causes of forced wear:
- low efficiency of the lubrication system;
- high degree of wear of the lead sprocket;
- excessive tension of the saw chain;
- the use of substandard and surrogate chain oils.
Specialists advise to exploit a set of several chains, changing them as needed. In this embodiment, you can use the advantages of a more productive mechanized sharpening.
Worn and damaged chains should be rejected in a timely manner. Even with the presence of a brake emergency stop and the catcher, the operation of the work developed by the resource is characterized by increased trauma.
How to exclude the risks of buying a chain falsification?
In the domestic market there is a small, but stable range of fake parts for chainsaws and component materials of Asian, most Chinese production.
With all the desire to meet the quality of the European level, the technical and operational properties of Chinese copies are far from excellence, since they produce their resource somewhere by 50-70%.
This disadvantage is at a certain extent compensated for lower cost. On the other hand, the practice shows that the continuous and trouble-free operation of the chainsaw guarantees only the branded products.
Acquisition of details in a licensed or corporate store will help to avoid the risks of the purchase of a Chinese fake branded product.
Buying headsets for chainsaws for many turns into a real test.
How to measure and choose a step, size, chain length for chainsaws, what exactly do you need to know about them?
Incorrectly chosen components for the tool are a waste of money and time. Difficulties with the choice of tires for chainsaws first arise due to the fact that the parameters of the headset are usually marked in inches. Therefore, users who are accustomed to the metric system are not always correctly calculated. specifications details. Experts point to typical errors when choosing a saw headset for the tool and provide recommendations for determining the optimal characteristics of components.
Tires for chainsaw: Dimensions
The data necessary to determine the characteristics of a suitable headset are indicated in the instructions to the instrument. But this does not mean that you do not need to be aware of the question proper selection components. Make yourself from buying an unsuitable headset, use the advice of specialists in choosing a tire for chainsaws. The following parameters are taken into account for the characteristics of the size of the part:
- length in inches;
- groove width;
- step chain.
Among users, chainsaws are the most sought-after tires of 10 to 22 inches. Often on sale are offered tools of one model, but with different lengths details. These features are indicated in the device passport. The width of the groove is also supplied in inches. Especially often there are five sizes, some of them are 0.043, 0.050, 0.058. This data is quite difficult to remember, so it is often for convenience, the parameters are indicated in millimeters. Resperating sellers must be armed with a table matching in inches and millimeters. They will help you with a choice of the item corresponding to the necessary data. Step chain When calculating the parameters of the tire for chainsaws is determined by the size of the slave sprocket. The most frequently used dimensions are 0.325 and 3/8. Remember - data for the chain and tires must match.
Important moments when choosing a tire for chainsaws
If you have a detail previously used at hand, show it to the seller as a sample. Inexperienced users it is difficult to correctly determine the length of the tire for chainsaws in inches, the width of the groove, and the chain step. Remember - the necessary data must be sought in the instructions attached to the instrument, or on the part itself. When choosing a headset, do not forget to make sure that tail The trained tire for chainsaws, as well as the position of the openings for supplying oil coincide with the sample. In any case, do not hurry with the purchase of details if it is difficult for you to determine its optimal characteristics, consult with professionals.
Technical parameters of saw chains
Selecting the chain for chainsaws, you need to pay attention to several important characteristics:
- number of links;
- chain step;
- the thickness of the master;
- purpose of use.
In addition, on our site you can choose a chain on the saw model through the chain saw directory.
Number of chain links. Determined by the inner teeth of the chain.
Step chain - The distance between the three consecutive rivets, divided into two.
Tables of sizes of saw chains and tires for chainsaws in models
This is the determining parameter, and, depending on its value, all existing chains are divided into five groups in 1/4 '', 0.325 '', 3/8 '', 0.404 '' and 3/4 ''.
Step 1/4 '' (6.35 mm) is peculiar to small chains installed on low-power one-handed saws.
Chains with steps 0,325 '' (8.25 mm) and 3/8 '' (9.3 mm) are the most common options. More than 80% of the saws produced worldwide are equipped with them.
Steps 0.404 '' (10.26 mm) and 3/4 '' (19.05 mm) are distinguished by chains with larger links and increased performance. Within a few decades, they have equipped saws of Russian production, but now they are installed only on powerful tank saws and harvester equipment.
Than more step Chains, the larger the components of its links and the higher its performance, but she was wider. To overcome the increasing resistance, cutting is required more powerful saw. In chains with a small step, other advantages - more Teeth per unit length, smooth movement in propylene and, accordingly, reduced vibration, cleaner cut.
Most thickness. During operation, the chain slides in the tire sinus, and this slip must be smooth, without hooks and at the same time without excess "Boltanka". The thickness of the shank and the thickness of the groove must strictly correspond to each other, which increases the reliability of the landing of the chain and eliminates the likelihood of its "scope". Everything has five standard sizes:
- 1.1 mm (0,043 '') for low-power saws
- 1.3 mm (0.050 '') household and semi-professional chains,
- 1.5 mm (0.058 '') powerful and productive saws,
- 1.6 mm (0.063 '') and 2.0 mm (0.080 '') highly professional saws.
Purpose of use imposes its requirements for the circuits used. For example, if necessary, sawing solid and contaminated wood or with demolition and construction of structures - it is better to use special carbide chains Picco Duro or Rapid Duro, having carbide teeth or lining, which give them unsurpassed strength and durability of use. Some work is simply impossible to do without their help.
It is also known that for the longitudinal sawing of wood (along the fibers) it is desirable to use special chains. The main difference between the chains of the longitudinal and transverse type is the corners of the attack of the cutting links. For transverse sawing chains, they make up 25-35 degrees. In chains for longitudinal sawmills (for example, Stihl Picco Micro X) the corners are sharper - from 5 to 15 degrees.
The use of chains is incomprehensible to their destination leads either to reduced performance, or to elevated "aggressiveness", strong vibration and additional load on the engine chainsaws.
Additional chain characteristics are the height of the profile and the depth of the cutting.
Height profile.
The chains are high and low-profile depending on the height of the cutting edge over the plane of the tire guide. Highly profile chains are usually used in professional purposes to obtain maximum sawing performance. Low profile chains are installed on household and amateur chainsaws, because Thanks to the increased area of \u200b\u200bthe cutting of the cutting links and the reduced thick chip thickness, they are safer.
Cutting depth - This is the size of the gap between the upper edge of the tooth and the limiter of the propyl, regulating the thickness of the chips. Most often there are samples with gaps of 0.025 inches (or 0.635 mm) and 0.030 inches (or 0.762 mm), less often with gaps up to 0.07 inches (or 1.778 mm), the latter are intended for machine roll units.
The cutting depth largely determines the performance of sawing. The greater the gap - the higher the performance. The revolving side of the performance is vibration. So chains with a small depth of cutting in the propylene move softer, less "twitch". Therefore, for the balance of vibration and performance, there are often cutters with a shallow depth of cutting, and vice versa.
Oregon is a major manufacturer and one of the main innovatives in the production of saw chains. We believe that for ideally performed work, it is important not only the quality of the instrument, but also its competent selection. Let's see what in this matter first need to pay attention to make a choice that will meet your needs.
Step chain
This is the distance between the axes of three neighboring rivets, divided into two. It must match the step on the leading sprocket of the saw and on an asterisk in the bow of the tire.
Step is measured in inches, the most common values \u200b\u200bare as follows:
"325 is one of the most popular options, often installed on household and semi-professional saws of small and medium power;
3/8 - it happens with a low profile for the most common light saws and just 3/8 for powerful professional saws;
"404 - used on professional saws with a capacity of at least 5.5 liters. p., put on low-power saws is economically inappropriate.
To correctly pick up a chain to a chainsaw, taking into account this factor, it will be enough to read the instructions - it will be indicated on which one step is calculated. With the exception of some professional models, most of the saws are developed under one definite step.
Chain saw chain
Leading links
Provide the movement of the chain over the bus due to adhesion with the driving sprocket saw.
It is measured by the length of the chain: it is equal to the number of leading links in the ring. To determine it, it is enough to fold the ring twice, calculate the pairs of leading links and double the result. Also on the leading links marked marking on which you can define a series of products.
Chain thickness
It is measured in the shank of the leading link moving inside the tire groove, and must correspond to the thickness of the tire groove.
Cutting links
They are responsible for cutting wood. Differ in the form, sharpening angle and chromium thickness. The following types are used;
Chisel (chisel, super). The most aggressive type of link, cuts quickly, but requires frequent sharpening and is flawed faster;
Walked. Cutting more smooth, sharpening is required noticeably less.
Connecting links
Save the lubricant and are responsible for the strength of the product.
Additional Oregon Engineering Solutions
VIBE-BAN - suppresses vibration, increases the safety of the operator and accelerates cutting.
Lubriwell - optimizes lubrication distribution along the groove length on the bus guide.
Lubilink - enhances connecting links and saves lubrication.
Witness Mark - simplifies service. Her labels indicate optimal corner sharpening horizontal edge cutter. There are on all chains with chisel cutters.
Main species
The number 91 is indicated by a series of low-profile circuits in 3/8 and the thickness of the leading link is 1.3 mm from Oregon. This is the most demanded series from Oregon, its sales provide 70% of the market.
91p - the most popular a budget option, with minimum engineering functions;
91VXL - premium class, the perfect value for money (equipped with all the above-mentioned special engineering solutions);
Multicut - designed to work in the abrasive environments;
Speedcut (with a narrow propyl) - New 2017, characterized by increased speed and smooth cutting;
PowerSharp is a unique self-folding option, an innovative development of Oregon. Now it is used, first of all, together with the Heavy-duty 15-ampere chain saw CS1500 from Oregon - the only electron in the world with the function of heatures.
Table for chainsaw chains
Roller drive chains
Roller drive chains Designed for power mechanical gears of a variety of machines and mechanisms. Of all the drive chains were the greatest distribution.
There are three basic standards that regulate the parameters of the drive roller chains - GOST 13568-97, adopted in Russia; ISO / R 606, the British Standard adopted in european countries, and ANSI B29.1m, adopted in the USA. The chains of this species can be made collapsible, with direct and curved circuit of the plates, as well as with various types of anti-corrosion coatings. The size of roller chains has complete analogues among the chains of American and British standards.
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Regulations:
GOST 13568-97 chains drive roller and sleeve.
International Standards: ISO / R 606, ANSI B29.1M.
Distinguish the following types of drive roller chains:
Chains drive roller single-row GOST 13568-97 (PR)
| Name of drive roller chain | Chain designation | Step chain | Diameter of the chain roller | Chain roller diameter | Roll length chain | Width of the inner plate | Weight of one meter chain | |||
|---|---|---|---|---|---|---|---|---|---|---|
| ISO 606. | ANSI B29.1M. | P. | d1 | b1. | d2. | LC | h2. | g. | ||
| mM. | kn / kgf. | kg / m | ||||||||
| PR-8-4.6 | 05B-1 | — | 8 | 5 | 3 | 2,31 | 12 | 7,5 | 4,6/460 | 0,20 |
| PR-9,525-9,1 | 06B-1. | — | 9,525 | 6,35 | 5,72 | 3,28 | 17 | 8,5 | 9,1/910 | 0,45 |
| Pr-12.7-10-1 | 82 | — | 12,7 | 7,75 | 2,4 | 3,66 | 10,5 | 10 | 10,0/1000 | 0,30 |
| Pr-12.7-9 | 81 | — | 12,7 | 7,75 | 3,3 | 3,66 | 12 | 10 | 9,0/900 | 0,35 |
| Pr-12.7-18.2-1 | — | — | 12,7 | 8,51 | 5,4 | 4,45 | 19 | 11,8 | 18,2/1820 | 0,65 |
| Pr-12.7-18,2 | 08B-1. | — | 12,7 | 8,51 | 7,75 | 4,45 | 21 | 11,8 | 18,2/1820 | 0,75 |
| Pr-15,875-23-1 | — | — | 15,875 | 10,16 | 6,48 | 5,08 | 20 | 14,8 | 23,0/2300 | 0,80 |
| PR-15,875-23 | 10B-1 | — | 15,875 | 10,16 | 9,65 | 5,08 | 24 | 14,8 | 23,0/2300 | 1,00 |
| Pr-19,05-31,8 | 12A-1. | 60 | 19,05 | 11,91 | 12,7 | 5,94 | 33 | 18,2 | 31,8/3180 | 1,90 |
| Pr-25.4-60 | 16A-1 | 80 | 25,4 | 15,88 | 15,88 | 7,92 | 39 | 24,2 | 60,0/6000 | 2,60 |
| PR-31,75-89 | 20A-1 | 100 | 31,75 | 19,05 | 19,05 | 9,53 | 46 | 30,2 | 89,0/8900 | 3,80 |
| PR-38,1-127 | 24a-1. | 120 | 38,1 | 22,23 | 25,4 | 11,1 | 58 | 36,2 | 127,0/12700 | 5,50 |
| PR-44,45-172,4 | 28A-1. | 140 | 44,45 | 25,4 | 25,4 | 12,7 | 62 | 42,4 | 172,4/17240 | 7,50 |
| Pr-50,8-227 | 32A-1. | 160 | 50,8 | 28,58 | 31,75 | 14,27 | 72 | 48,3 | 227,0/22700 | 9,70 |
| Pr-63.5-354 | 40A-1 | 200 | 63,5 | 39,68 | 38,1 | 19,84 | 89 | 60,4 | 354,0/35400 | 16,00 |
| Pr-103,2-650 | — | — | 103,2 | 46 | 49 | 24 | 124 | 65 | 650,0/65000 | 28,50 |
Pr-12.7-18.2-1
PR - drive roller GOST 13568-97
12.7 - chain step in mm
SPR12,7-18,2-1 - connective chain link
PPR12,7-18.2-1 - Transient transition to chains
P2P17-18.2-1 - Double transition link to chains
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Chains Drive Roller Double-row GOST 13568-97 (2PR)
| Name of drive roller chain 2pr | Chain designation | Step chain | Diameter of the chain roller | Width between the inner plates | Chain roller diameter | Roll length chain | Width of the inner plate | Weight of one meter chain | ||
|---|---|---|---|---|---|---|---|---|---|---|
| ISO 606. | ANSI B29.1M. | P. | d1 | b1. | d2. | LC | h2. | g. | ||
| mM. | kn / kgf. | kg / m | ||||||||
| 2PR-12.7-31.8 | 08B-2 | — | 12,7 | 8,51 | 7,75 | 4,45 | 35,0 | 11,8 | 31,8/3180 | 1,40 |
| 2PR-15,875-45,4 | 10B-2 | — | 15,875 | 10,16 | 9,65 | 5,08 | 41,0 | 14,8 | 45,4/4540 | 1,90 |
| 2PR-19.05-64 | 12A-2 | 60-2 | 19,05 | 11,91 | 12,7 | 5,94 | 53,4 | 18,2 | 64,0/6400 | 2,30 |
| 2PR-25.4-114 | 16A-2 | 80-2 | 25,4 | 15,88 | 15,88 | 7,92 | 68,0 | 24,2 | 114,0/11400 | 2,90 |
| 2PR-31,75-177 | 20A-2 | 100-2 | 31,75 | 19,05 | 19,05 | 9,53 | 82,0 | 30,2 | 177,0/17700 | 3,10 |
| 2PR-38,1-254 | 24a-2. | 120-2 | 38,1 | 22,23 | 25,4 | 11,1 | 104,0 | 36,2 | 254,0/25400 | 5,00 |
| 2PR-44,45-344 | 28A-2 | 140-2 | 44,45 | 25,4 | 25,4 | 12,7 | 110,0 | 48,87 | 14,40 | 7,30 |
| 2PR-50.8-453,6 | 32A-2 | 160-2 | 50,8 | 28,58 | 31,75 | 14,27 | 130,0 | 48,3 | 453,6/45360 | 11,00 |
Example legend Chains:2PR-31,75-177
2 - Number of chain GOST 13568-97
PR - drive roller
31.75 - chain step in mm
An example of the conditional designation of components:
C - 2PR - 31,75-177 - Coupling links
P - 2PR - 31.75-177 - Transitional link to the chain
P2 - 2PR - 31,75-177- Double transition link to chains
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Chains Drive roller three-row GOST 13568-97 (3PR)
| Name of drive roller chain 3pr | Chain designation | Step chain | Diameter of the chain roller | Width between the inner plates | Chain roller diameter | Roll length chain | Width of the inner plate | Weight of one meter chain | ||
|---|---|---|---|---|---|---|---|---|---|---|
| ISO 606. | ANSI B29.1M. | P. | d1 | b1. | d2. | LC | h2. | g. | ||
| mM. | kn / kgf. | kg / m | ||||||||
| 3Pr-12.7-45,4 | 08B-3. | — | 12,700 | 8,51 | 7,75 | 4,45 | 50,0 | 11,8 | 45,4/4540 | 2,00 |
| 3Pr-15,875-68,1 | 10B-3. | — | 15,875 | 10,16 | 9,65 | 5,08 | 57,0 | 14,8 | 68,1/6810 | 2,80 |
| 3PR-19,05-96 | 12A-3. | 60-3 | 19,050 | 11,91 | 12,7 | 5,94 | 76,2 | 18,2 | 96,0/9600 | 4,30 |
| 3Pr-25.4-171 | 16A-3. | 80-3 | 25,400 | 15,88 | 15,88 | 7,92 | 98,0 | 24,2 | 171,0/17100 | 7,50 |
| 3P-31,75-265,5 | 20A-3. | 100-3 | 31,750 | 19,05 | 19,05 | 9,53 | 120,0 | 30,2 | 265,5/26550 | 11,00 |
| 3P-38,1-381 | 24a-3. | 120-3 | 38,100 | 22,23 | 25,4 | 11,1 | 150,0 | 36,2 | 381,0/38100 | 16,50 |
| 3PR-44,45-517,2 | 28A-3. | 140-3 | 44,450 | 25,4 | 25,4 | 12,7 | 160,0 | 42,4 | 517,2/51720 | 21,70 |
| 3PR-50.8-680,4 | 32A-3. | 160-3 | 50,800 | 28,58 | 31,75 | 14,27 | 190,0 | 48,3 | 680,4/68040 | 28,30 |
Example of the conventional chain designation:3P-38,1-381
3 - Number of chain GOST 13568-97
PR - drive roller
38.1 - chain step in mm
An example of the conditional designation of components:
C- 3PR - 38.1 - 381 - connective links to chains
P - 3PR - 38,1 - 381 - Transitional link to chains
P2 - 3PR - 38.1 - 381 - Double transition link to chains
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Chains Drive roller four-rowed GOST 13568-97 (4PR)
| Name of drive roller chain 4pr | Chain designation | Step chain | Diameter of the chain roller | Width between the inner plates | Chain roller diameter | Roll length chain | Width of the inner plate | Weight of one meter chain | ||
|---|---|---|---|---|---|---|---|---|---|---|
| ISO 606. | ANSI B29.1M. | P. | d1 | b1. | d2. | LC | h2. | g. | ||
| mM. | kn / kgf. | kg / m | ||||||||
| 4PR-19.05-128 | 12a-4. | 60-4 | 19,05 | 11,91 | 12,7 | 5,94 | 101,9 | 18,2 | 128/12800 | 5,75 |
| 4PR-19,05-155 * | — | — | 19,05 | 11,91 | 12,7 | 5,94 | 101,9 | 18,2 | 155/15500 | 6,80 |
| 4PR-25,4-228 | 16A-4. | 80-4 | 25,40 | 15,88 | 15,88 | 7,92 | 129,9 | 24,2 | 228/22800 | 10,90 |
| 4PR-31,75-355 | 20A-4. | 100-4 | 31,75 | 19,05 | 19,05 | 9,53 | 157,5 | 30,2 | 355/35500 | 14,70 |
| 4PR-38,1-508 | 24a-4. | 120-4 | 38,10 | 22,23 | 25,4 | 11,1 | 197,1 | 36,2 | 508/50800 | 22,00 |
| 4PR-50,8-900 | 32A-4. | 160-4 | 50,80 | 28,58 | 31,75 | 14,27 | 252,3 | 48,3 | 900/90000 | 38,00 |
Example of the conventional chain designation:4PR-50,8-900
4 - Number of chain GOST 13568-97
PR - drive roller
50.8 - chain step in mm
An example of the conditional designation of components:
S-4PR - 50,8 - 900 - connective chain link
P-4PR - 50.8 - 900- Transitional to the chain
P2-4PR - 50.8 - 900- Double transitional connections to chains
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Chains Drive roller with curved plates GOST 13568-97 (with)
To increase wear resistance, there are circuits with curved plates.
What chain is better to put on a chainsaw
In the drive roller chain with curved plates can only be the odd number of links.
| Name of the drive roller chain with curved links (when) | Step chain | Diameter of the chain roller | Width between the plates | Chain roller diameter | Roll length chain | Plate width chain | Weight of 1 meter chain | ||
|---|---|---|---|---|---|---|---|---|---|
| P. | d1 | b1. | d2. | LC | h2. | mM. | Q min. | q. | |
| mM. | kn / kgf. | kg / m | |||||||
| At-78,1-360 | 78,1 | 33,3 | 38,10 | 17,15 | 102 | 45,5 | 51,0 | 360/36000 | 14,5 |
| At-78,1-400 | 78,1 | 40 | 38,10 | 19 | 102 | 56 | 51,0 | 400/40000 | 19,8 |
| At 103,2-650 | 103,2 | 46 | 49,00 | 24 | 135 | 60 | 73,0 | 650/65000 | 28,8 |
| At-140-1200 | 140 | 65 | 80,00 | 36 | 182 | 90 | 94,0 | 1200/120000 | 63 |
Example of the conventional chain designation:At 103,2-650
Accommodation roller with curved plates
103.2 - chain step in mm
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Roller Roller Roller Circuits GOST 13568-75 (PRD)
Drive roller long-band chains are designed for use in transmissions with large mid-scene distances and in transmissions with low circumferential speed and large-diameter asteristers. Lower chains are designed on the basis of the driving roller circuits of the PR with an increased twice step. The workload of the circuits of this type is lower than that of ordinary roller chains of the same step.
| Name of the drive roller chain of the PRP | Chain designation | Step chain | Diameter of the chain roller | Width between the inner plates | Chain roller diameter | Roll length chain | Width of the inner plate | Weight of one meter chain | ||
|---|---|---|---|---|---|---|---|---|---|---|
| ISO 606. | ANSI B29.1M. | P. | d1 | b1. | d2. | LC | h2. | g. | ||
| mM. | kn / kgf. | kg / m | ||||||||
| PRD-31,75-2300 | 210V. | — | 31,75 | 10,16 | 9,65 | 5,08 | 24 | 14,8 | 23,0/2300 | 0,6 |
| PRD-38-3000 | — | — | 38 | 15,88 | 22 | 7,92 | 42 | 21,3 | 30,0/3000 | 1,87 |
| PRD-38-4000 | — | — | 38,00 | 15,88 | 22 | 7,92 | 47,0 | 21,3 | 40,0/4000 | 2,1 |
| PRD-50.8-6000 | 216A. | 2080 | 50,80 | 15,88 | 15,88 | 7,92 | 39,0 | 24,2 | 60,0/6000 | 1,9 |
| PRD-63.5-8900. | 220А. | 2100 | 63,50 | 19,05 | 19,05 | 9,53 | 46,0 | 30,2 | 89,0/8900 | 2,6 |
| PRD-76.2-12700 | 224A. | 2120 | 76,20 | 22,23 | 25,4 | 11,1 | 57,0 | 36,2 | 127,0/12700 | 3,8 |
Example of the conventional chain designation:PRD-38-4000
GOST 13568-75
PRP - Drive Roller Long-Line
38.0 - chain step in mm
Examples of the conditional designation of components:
SPRD38.0-4000- unit connecting to chains
PPRD38,1-4000- Transitional kits to chains
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If you do not succeed in deciding with consumables for your chainsaws, send a request through the form below. Our experts will select everything you need and contact you.
Nothing found on your request. Fill out the form below to search for consumables by a specialist.
If you want to purchase a saw chain, or a guide bus for electro or chainsaws, but do not know what kind of saw blade will suit your saw model, fill out the form with the parameters known to you. Our technical specialist will pick up consumables for your saw and contact you.
To choose a chain for chainsaws to know three parameters:
- Chain step;
- Chain thickness (driver thickness);
- Chain length (number of drive links).
Knowing these three parameters can easily pick up, vyototzes or a harvester head.
1. Step chain
The chain step is made in inches, calculate it as follows: measure the distance between the nearest drive links of the chain, or the distance between the three nearest rivets of the chain (from the rivet center) is divided into 2 and translated in inches (1 inch \u003d 25.4 mm).
Chain's step should always be coincided with the step of the pilot sprocket and the slave.
- Chain in increments of 0.25 "On 1/4". The distance between three rivets (leading links) 12.7 mm ÷ 2 \u003d 6.35 mm is translated into inches (÷ 25.4) in inches 0.25 "(more often as 1/4").
- Chain in increments of 0,325 ". The distance between three rivets (leading links) 16.5 mm ÷ 2 \u003d 8.25 mm is translated into inches (÷ 25.4) in inches of 0.325. "
- Chain in increments of 0,375 "He 3/8". The distance between three rivets 19 mm ÷ 2 \u003d 9.5 mm is translated into inches (÷ 25.4) in inches of 0.375 "(it is customary to designate as 3/8" to not confuse from 0.325 ").
- Chain in increments of 0.404 ". The distance between the three rivets is 20.5 mm ÷ 2 \u003d 10.25 mm translate into inches (÷ 25.4) in inches of 0.404.
- Chain with a step 3/4 ". The distance between the three rivets 38.1 mm ÷ 2 \u003d 19.05 mm is translated into inches (÷ 25.4) in inches of 0.75 "(it is customary as 3/4").
2. Thickness
The chain thickness is the thickness of the drive level (you can measure the caliper). This size should always be coincided with the groove thickness.
In total, electric and gasoline saws, as well as harvesters there are 6 sizes of the determining thickness of the host:
- 1.1 mm (0.043 ");
- 1.3 mm (0.05 ");
- 1.5 mm (0.058 ");
- 1.6 mm (0.063 ");
- 2.0 mm (0.08 ");
- 3.1 mm (0.122 ").
3. Third main parameter when selecting a chain: Chain length (number of drive links).
The chain length is determined by counting the number of drive (internal) chain links. Important:
- cutting links do not determine the length of the chain (do not consider them).
- the length of the guide bus does not define the exact length of the chain (for example, a chain 55, or 56, or 57 links can be installed on a saw with a bus 16 "(40 cm), depends on the circuit tape mechanism for a specific saw model).
- you do not fit a chain about 55-57 links in length, only a certain size recommended by the manufacturer saws.
What is the length of the tire of my chainsaw?
The length of the cutting part of the tire differs from its total length. Tire length is considered to be the length of the cut (the operating part) is the distance from the front of the saw to the rounded tip of the tire. This size is rounded to the nearest in inches or centimeters. Inch is denoted as "equal to 2.54 cm.
For example, the length of the cutting part of the tire for chainsaws Stihl. MS180 - 40 cm. 40 cm ÷ 2.54 \u003d 15.7 inches. Rounding is obtained 16 "(inches).
For chainsaw 6 MS180, 16 inch is suitable (40 centimeters) Tire Oregon Article 160sdea074.
How to pick up a tire for chainsaws?
There are several basic parameters for which chainsaw is chosen, one of them, the step of the saw headset. The step is depending on the power of chainsaws, and largely affects the speed of the cut.
That as far as the step corresponds to power, determines the performance and service life of chainsaws. Also, the consumption of fuel luction depends on its proper selection.
Step is half the distance between adjacent shanks or between three adjacent rivets.
There are several sizes, 1/4 inches - the smallest, 3/4 inches - the largest and 3/8 and 0.325 - inch, most popular.
The step is the parameter that is available not only in the headset, but also in the stars of tires and chainsaws.
Important! All three elements, chain, asterisk and tire must have the same step parameter, otherwise the installation and proper work Impossible.
What is affected by the distance between the teeth
In the saw chain, the distance between cutting teeth directly affects its performance. The more, the deeper the cutting edge can crash into wood, provided proper sharpening limiter.
Accordingly, more powerful chainsaws, it is permissible to install a headset with a large distance between adjacent links and vice versa.
If you put a pile headset ¼ inches on a powerful chainsaw, then the performance will fall significantly, and the load on the engine will grow, because The saw will work in the separation and exceed the maximum permissible turnover, which ultimately can lead to overheating and Zadiir CPG.
Conversely, the installation of a chain with a big step on a weak chainsaw will lead to the fact that the saw power will not be enough for normal cut, of course, this will not entail heavy consequences, as in the first case, but it is not comfortable to work as a tool.
Also, the quality and accuracy of the cut depends on the distance between the links. The farther from each other neighboring cutting teeth, the stronger the vibration when working and below the accuracy of the cut. For a more accurate cut, you should choose a saw headset with a smaller step. This factor must be taken into account those who are engaged in figure.
A large influence of the chain step is on the so-called "rebound". The larger the distance between the teeth, the probability that the chainsaw will bother up, above.
Important! Bowl of all, "rebound" occurs when working with tire tire, for example, when performing internal cuts. In this case, you need to be extremely attentive, regardless of whether the chain is used with what step.
In the selection of the chain, the rule applies that step (the distance between the teeth) is proportional to the power, but the accuracy of the cut is in the inverse addiction, i.e. The distance is more, the accuracy is lower.
3/8 or 0.325 what is better and why
It is better to determine which parameter is better and how worse it is impossible, since each of them has its own characteristics and is intended for chain saws of a certain power. Depending on how the pile headset is correct, the productivity of the tool will have different indicators. If the headset is chosen optimally, i.e. The distance between the links corresponds to the recommended power, the performance of chainsaws will be maximum. With incorrect selection, the engine will experience overloads that can cause faults.
Optimal power indicators for 0.325 inches - 1.8-2 kW. It is for this reason that at the chainsaw of Huskvarna 142/137 there are chains with such a step.
For 3/8 parameter, a tool with a power up to 3 kW is required. In this case, the question arises, and why on the calm 180, with a capacity of 1.5 kW 3/8 inches chains are used. The answer is simple: a chainsaw is a calm, power is not the most important thing, the maximum number of revolutions is of great importance. Country 180 issues more than 13,500 rpm, due to this it is capable of sawing a 3/8 inches headset.
For 0.404 inches, the optimal power of 4.5 - 5 kW.
Important! Specified values The power and step of the chain are not necessarily character, the user itself has the right to choose the settings of the headset, which it plans to use on a chainsaw.
How to pick up
In the case when it is necessary to choose the optimal step of the chain for chainsaws, it is best to take into account the recommendations of the manufacturer and already based on them to choose the type of saw headset.
Important! When choosing, you should not forget that the distance between the links is not the only parameter to which you want to pay attention.
Also worth picking the thickness of the link, the type of cutting tooth, the number of units. Performance to a greater extent depends on the angle of sharpening, the depth of the cut and the shape of the tooth of the limiter. The sharper the restrictive tooth, the higher the speed of the cut, and below its quality.
Below we offer to watch a video about choosing a chain chain step. In the video, it is described in the video and shown how to determine it, for which chainsaw, what a chain step to use.
How to find out
There are several ways to find out the chain step:
- View step value on the saw bus. Manufacturers of the saw headset, necessarily indicate the length of the tire, width of the groove and the pitch of the sprocket on the shank of the saw blade.
- Measure the distance between the shanks of neighboring teeth or the centers of three adjacent rivets.
- A method that is suitable for chains in branded packaging is to see the chain features on the box.
On the corporate packaging of the chains of the Channel, there is an exhaustive information about the products, reading with which it is possible to learn not only the distance between adjacent links, but also the type of teeth, the width of the link, the recommended storage size for sharpening.
Chain table chainsaw
In conclusion, we suggest familiarizing yourself with the table, which indicates the technical parameters of popular chain models for chainsaws of different power.
Conclusion
The distance between the chain chains of the chainsaw is one of of the most important parameterswho in no case should be neglected. When buying a spare headset, you need to know which step is suitable for the tire and asterisks installed on your chainsaw, or change the chain, tire and the leading star with a set.
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