How to measure the length of a chainsaw bar

Main settings

When choosing, consider the main five parameters, these are:

  • Length.
  • Guide groove width.
  • Tire sprocket pitch.
  • Number of chain links intended for it.
  • Shank type and models of chainsaws on which it is permissible to install it.

Depending on the power of the chainsaw, it is permissible to install a headset of different lengths on it, which allows you to adjust the performance and load on the saw. Manufacturers can indicate the length in both centimeters and inches and, as a rule, this is not the entire length of the tire, but only a characteristic of the length of its working part. Choosing the right tire for your chainsaw should start with studying the instructions for your chainsaw and finding out the permissible length for your particular model. For example, for the Stihl MS 180 chainsaw, the recommended lengths are 14 or 15 inches.

measure, length, chainsaw

The width of the guide groove, like the pitch of the sprocket on the bar, must correspond to the same parameters of the saw chain, otherwise the installation of the chain on the bar will not be possible. The groove width for household chainsaws is 1.1 and 1.3mm for professional models 1.5. The most common sprocket pitch sizes are 0.325 and 3/8 inches.

Depending on the type of shank, the tire can only be fitted to certain chainsaws. This is because the chain lubrication hole on the tires for certain brands of chainsaws may be located in different places. For example, a tire from a Stihl chainsaw cannot be installed on Husqvarna and vice versa, be sure to take this into account when choosing.

A high-quality video description of the selection process can be seen below. In this video, a gasoline tool sales specialist talks about the main characteristics of the saw headset, its types and sizes.

Shtil offers two options for chain tensioning. fast and frontal. Both are used to improve on the job. It is worth noting that it is forbidden to drag an overheated circuit. According to the laws of physics, it will shrink after cooling and may burst from excessive stretching or tire damage.

In the front version, unscrew the nuts and raise the chain of the chain saw on which the chain is mounted. The bolt on the right must be turned with a screwdriver until the correct tension is achieved. Then the tire should be lifted even higher and the nuts should be tightened back. Stihl’s quick chain chain option offers the following: The top-positioned idler must be turned right to the right after lifting the wing nut handle and loosening it. After the operation, the nut is tightened again and the handle is lowered. This completes the procedure. Stihl chain saws have some differences in the rules for stretching the chain, so it is advisable to find instructions for a custom model.

Cutting depth and profile height

The depth of cut depends on how high the chain profile is. The higher the profile, the more the chain “bites” into the material, and as a result, the productivity of the tool increases. With a low profile, thinner chips are removed, and the chain is not immersed as deeply into the material. Usually, the depth is adjusted by sewing the stops that are located on each cutter.

The following profile sizes are available:

  • high profile. 0.03 “(0.762 mm);
  • low profile. 0.025 “(0.635 mm).

How to measure a chainsaw guide bar

This information can be found in your chainsaw documentation. These types of profiles are installed on amateur and professional units. But you should be aware that a pro-class tool cannot always be equipped with high-profile chains, and household tools are always equipped with low-profile cutting elements.

High-profile chains are the most productive elements, which means they have increased “aggressiveness” and, in addition, tangible vibration. The latter significantly reduces labor productivity, since it does not allow working with the unit for a long time. Therefore, manufacturers have found a middle ground: with a large step, a chain with a low profile is made, and vice versa, if the step is less, then the profile is made high. These changes remove all side effects as much as possible, the unit starts to work with less “aggressiveness” and normal performance.

Gasoline and oils

Any saw is equipped with a two-stroke carburetor engine and two tanks (one for filling the fuel mixture, the other for filling with oil for lubricating the chain). The volume of the fuel tank is from 0.3 to 1 liter, and the volume of the oil tank is usually 1.5-2 times less. This ratio of volumes leads to the fact that the oil for lubricating the chain and the fuel mixture run out approximately at the same time, namely after 30 to 45 minutes of operation (at full load).

The need for preparing a fuel mixture is understandable to everyone who is familiar with two-stroke engines: the difference between the operating cycle of a two-stroke engine and a four-stroke engine leads to the fact that it is impossible to use an oil pump system to lubricate all rubbing parts (piston, shaft, etc.) and oil has to be added directly into gasoline

All this is quite important, since attempts to work only on gasoline or a violation of the required proportions of the gasoline-oil mixture will quickly lead to tool breakage.

Recommendations for the brands of gasoline and oil, as well as the proportions of the fuel mixture are as follows. When working with Russian chainsaws, 76th gasoline and conventional oils for two-stroke engines are used, which are added to the mixture in an amount of about 4%, that is, in a ratio of 1/25. Foreign models require the use of gasoline with an octane rating of 92 (or higher) and “branded” oils from chainsaw manufacturers (while the oil in such a mixture should be about 1/40).

How to determine your Bar length?

In principle, domestic oils for two-stroke engines can also be used on foreign chainsaws, however, two circumstances should be borne in mind. First of all, you need to be sure that the gasoline is clean. Second, if the oils are designed for engines with a speed of up to 8.5 thousand per minute, and for foreign-made chainsaws, the revolutions can reach 11-14 thousand, then the use of these oils reduces the engine resource of the tool by an average of 7-10%. Is the game worth the candle. decide for yourself.

See also  How to Make a Chainsaw Silent Video

It is easier to lubricate the saw unit with oil: in all models of household and professional chainsaws, ordinary Zhiguli oils can be used (for example, engine oils are recommended for Husqvarna models, and transmission oils for Stihl).

Attention should also be paid to the peculiarities of the seasonal operation of the instrument. If the saw is used at low temperatures, even with the correct selection of all ingredients, the quality of the oil and fuel mixture may be unsatisfactory (crystallization occurs and the viscosity increases significantly)

In this case, the saw itself must be adapted for use in such conditions. for example, it is necessary to provide for the possibility of heating the carburetor during operation. In addition, it is recommended to warm up the saw before work (if it was stored in an unheated room). in order to avoid unwanted consequences due to the presence of condensation.

Bus length. Pay attention!

The fact that not least of all catches the eye when choosing chainsaws is the size of the tires: it depends on them how large the size of the logs can be cut.

The length of the chainsaw bar is one of the most important parameters affecting the convenience, speed and safety of work. This characteristic must be consistent with the operating power of the chainsaw engine, which is why any serious manufacturer indicates the recommended tire length parameter in the technical data sheet of its products. spare parts, accessories and equipment for forest and garden. Subscribe to our YOUTUBE channel:

I saw many similar videos on the Internet, but difficult and incomprehensible for the average user. Tried

What is the risk of ill-considered use of tires that are too long or too short? You should start with the fact that you cannot categorically exceed the tire size recommended by the chainsaw manufacturer. The cutting length of the guide bar of a chainsaw chain, bar how to find out the length of the bar. The main advice for using a chainsaw (such as that the length of the bar, the pitch of the chain is measured in. The smaller size is allowed within reasonable limits, but also not recommended: there is an opinion that a short chain provides less load on the tool, but it should be remembered that this causes serious damage to the saw The permissible deviation range must be specified by the manufacturer in the technical documentation supplied with the saw.

Long chainsaw bars provide greater comfort when working with large material in volume, for example, when making deep cuts in thick logs. However, the use of a long tire paired with a low-power unit will give one disappointment: the engine power will not be enough to rotate the crankshaft, which means that fast cutting will be simply impossible. The sawing process will be slow, gas consumption will be increased, the engine will wear out instantly.

A shorter bar length with the right tool power will provide a high cutting speed and will be optimal for use when working with small trees or planks.

The length of the saw bar, as a rule, is indicated in inches by both foreign and domestic manufacturers. Tires are marked in 2-inch increments. Below is the equivalent in the metric system of lengths familiar to Russians:

Weak points of the guide bar

Saw bar device

Currently, there are various types of saw bars on the market, which differ in:

  • body length and width;
  • the size of the gap;
  • the presence of a nozzle of increased strength on the front part;
  • the presence and type of driven sprocket hidden in the front of the tire body.

Various types of saw bars

The shape of the shank and the location of the technological holes in the tires are standard for most amateur and professional chainsaws, but structurally they can be divided into open and closed. Obviously, the former are inferior to the reliability of attachment to the body of the latter, i.e. the busbar cover and bolt connection are subject to increased loads. You also need to monitor the integrity of the sprocket teeth. when blunt or chipped, it will quickly render the leading chain links unusable.

Chainsaw service life

There is no precise and clear definition of the term “resource of work” that would be equally used by all manufacturers and sellers. For example, there is a “common” definition. the time before sending a tool to a landfill. Other definitions are more “scientific” and conservative: time to first engine overhaul or 40% compression reduction. As you can see, it is difficult to expect an exact figure even in these cases, and it is practically unrealistic.

Therefore, no matter what numbers you hear, it is recommended to pay main attention to the presence of a branded service.

The main advice for operating a chainsaw (as, indeed, any other tool) is this: the main attention should be paid to the correct choice of operating modes and to avoid significant overloads. The “Formula of Love” works here as well: as you are with the instrument, so is it with you

What is the shank of my tire?

Print PDF catalog of shanks in 1: 1 scale, for printing you will need 7 A4 sheets.
If the file does not open, you need Adobe Acrobat Reader to view PDF files.

Make sure scaling is disabled before printing.

To determine the part number of your tire shank, attach your tire shank to the printout.

How long is my chainsaw bar? How to measure a tire correctly?

The cutting length of the bar differs from its total length. The length of the bar is considered to be the length of the cut (working part). this is the distance from the front of the saw to the rounded tip of the nose of the bar. This dimension is rounded to the nearest inch or centimeter. An inch is indicated as “equals 2.54 cm.

For example, the length of the cutting part of the bar for the Stihl MS180 chainsaw is 40 cm.
40 cm ÷ 2.54 = 15.7 inches. Rounding to 16 “(inches).
For Stihl MS180 chainsaw fits 16 inch (40 cm) tire Oregon article 160SDEA074

How to choose a tire for your chainsaw and how to measure it correctly

To select a tire for a chainsaw, you need to know the type of tail, the length of the tire, the width of the groove and the pitch of the nose sprocket.

See also  The ratio of gasoline and oil for a chainsaw

Shank types for Oregon tires

Groove width: 8.2 mm

The shank is designed for electric and chainsaws:
Alpina, Bosch, Castor, Cub Cadet®, Dolmar, Echo®, Efco®, Einhell®, Homelite®, Husqvarna®, Ikra, Jonsered®, Makita®, McCulloch®, Oleo-Mac®, Partner, Poulan® / Poulan Pro ®, Ryobi®, Shindaiwa, Skil®, Tanaka®, Zenoah

Groove width: 6.4 mm

The shank is designed for electric and chainsaws:
Homelite®, Saber

Vendor code: A064

Groove width: 6.4 mm

The shank is designed for electric and chainsaws:
Einhell®, Husqvarna®, Jonsered®, Skil

Groove width: 8.2 mm

The shank is designed for electric and chainsaws:
Alpina, Castor, Metabo®, Stihl®, Oleo-Mac®

Groove width: 6.4 mm

The shank is designed for electric and chainsaws:
Alko, Black Decker®, McCulloch®, Power Pruner® / Echo® Power Pruner®, Polesaws, Ryobi®, Shindaiwa, Stiga®

Groove width: 6.4 mm

The shank is designed for electric and chainsaws:
Alko, Black Decker®, McCulloch®, Ryobi®, Shindaiwa, Stiga®

Groove width: 8.2 mm

The shank is designed for electric and chainsaws:
AEG, Alpina, Dolmar, Homelite®, Husqvarna®, Jonsered®, Makita®, Oleo-Mac®, Partner, Poulan® / Poulan Pro®, Ryobi®, Shindaiwa, Skil, Tanaka®, Zenoah®

Groove width: 8.2 mm

The shank is designed for electric and chainsaws:
Alko, Alpina, Castor, Dolmar, Homelite®, Husqvarna®, Jonsered®, Makita®, McCulloch®, Oleo-Mac®, Partner, Shindaiwa, Solo®, Zenoah®

Groove width: 8.1mm

Shank designed for electric and chainsaws: Dolmar

Groove width: 9.0 mm

The shank is designed for electric and chainsaws:
Alpina, Castor, Dolmar, Husqvarna®, Jonsered®, Makita®, Partner, Shindaiwa, Solo®

Article: D024

Groove width: 10.0 mm

The shank is designed for electric and chainsaws:
Efco®, Jonsered®, Oleo-Mac®

Groove width: 12.1 mm

The shank is designed for electric and chainsaws:

Article: D033

Groove width: 14.0 mm

The shank is designed for electric and chainsaws:
Dolmar, Makita®, Poulan®

How to Measure a Chainsaw Chain

The shank is designed for electric and chainsaws:
Alko, Echo®, Poulan® / Poulan Pro®, Tanaka®, Zenoah®

Vendor code: D196

Groove width: 8.2 mm

The shank is designed for electric and chainsaws:
Echo, Homelite®

Vendor code: E031

Groove width: 14.0 mm

The shank is designed for electric and chainsaws:
Hydrochief, Oleo-Mac®, Stihl®

Groove width: 14.0 mm

The shank is designed for electric and chainsaws:
Echo®, Hydrochief, Stihl®

Vendor code: B083

Groove width: 8.0 mm

The shank is designed for electric and chainsaws:
Dolmar, Makita®

How to check the length

The nominal or cutting length of the chainsaw bar is slightly different from the total. Cutting is defined as the distance between the saw body and the tip of the tooth farthest from it. The length is rounded to the nearest inch and is the number by which the guide is selected for each tool model and for a specific chain. The numbers may differ from manufacturer to manufacturer, so a tire for a Husqvarna chainsaw may not be suitable as a replacement for a Partner saw.


The hobby class of saws is usually equipped with guides of 30-40 cm. Semi-professional saws have bars with a length of 38-45 cm. But on professional powerful models, they install guides for a chain from 50 cm to 90 cm.In the presence of a long chain, the load on the engine increases, and then the same time, the force of movement decreases for each tooth of the chain.

Tires for husqvarna and other chainsaw brands match the installed chains and differ in such a pitch:

  • Guide in 0.375 ” pitch for low chain profile;
  • Guide rail with 0.325 ” pitch;
  • Guide rail with 0.375 ” pitch;
  • Guide rail in 0.404 inch increments.

The thickness of the groove along which the saw chain travels also varies. There are such guides for the chain:

  • Guide for a saw with a slot thickness of 0.043 inches;
  • Guide for a saw with a slot thickness of 0.050 inches;
  • Saw guide with 0.058 ” groove thickness;
  • Saw guide with 0.063 ” groove.

Another difference in the guides is the number of links in the chain intended for them. They are marked with the designation “DL” (from the English drive link. leading link). For interest, you can independently determine the number of links by counting them. The photo shows various types of guides.

Farm and professional models

Partner and Echo are considered good farm saws. The size of the guides for such saws must necessarily correspond to the power of the unit, otherwise the saw mechanism and the engine will quickly wear out and you will need to replace the chainsaw tire and other parts. Guidelines for the selection of guides and their technical characteristics can be found in the tool instructions.

Professional saws from Stihl, Echo and Husqvarna are reliable helpers and have a lot of power. These tools use guides with a length of 50 cm to 75 cm with removable heads.

What should be a tire for a chainsaw

Chainsaw bars serve as a guide for the saw chain. They can have different lengths, chain pitch, groove width, depending on the model of the device. The choice also depends on the number of links in the saw chain. To find out what should be the tire for a chainsaw, you should read this article.

Household saws and tires for them

This type includes a tire for the Stihl 180 chainsaw. When choosing a guide for the tool, you should pay attention to its length. The size of the pillar of the tree that it can cut down depends on it. To determine the longest free cut, subtract 50 mm from the stated guide size. For example, a 45 cm tire for a Stihl chainsaw shows that such a saw can cut a trunk with a diameter of 40 cm in one go.

Do not exceed the recommended size of the guide, because the longer it is, the higher the resistance values ​​in relation to the torque of the engine crankshaft. Exceeding the recommended size can lead to a quick failure of the tool, as well as an increase in fuel consumption. You will need to repair the tire of the chainsaw, engine and other mechanisms or replace them.

Usually, household saws are designed for guides of 30-40 cm.For high-altitude work, lightweight special tires with voids filled with polyamide are chosen.

Operating tips

Before starting to work with the tool, check the saw headset. If you need lubrication of the chainsaw tire or minor repairs, then you need to do this.

After purchasing a new tool, you need to check it. To do this, you need to work at low speeds for about half an hour, and then check the chain tension. You need to edit the chain regularly. During operation, the tool heats up, and oil gets on the parts of the saw mechanism that need lubrication. You can see the features of the saw on the video.

Every part of the tool requires preventive inspection, lubrication and replacement if necessary. It can be concluded that the tire for chainsaws from Stihl, Husqvarna and other manufacturers is selected in accordance with the make and model of the tool. It must fit clearly with the saw chain for the tool to serve for a long time and reliably. If you do not follow the rules for operating the tool at low temperatures, then soon it will need repair.

See also  How to Breed Gasoline For a Husqvarna Chainsaw

Chainsaw tire: types and features of choice

All types of chainsaws, regardless of their class, have a similar design. One of their most important elements are cutting elements, which are presented in the form of a chain and a bar. The tire, like the chain, wears out over time and therefore must be replaced, but when is it necessary to do this? When it’s time to replace a tire, there are some important factors to consider when choosing a tire.


When choosing a tire, it is important to consider their types, which are classified into the following options:

  • Narrow flat. They are intended for use in household-class chainsaws, as they are capable of working in tandem only with low-profile chains. The advantage of such devices is the minimization of injury risk due to the absence of “kickback”. This is very important for beginners who are not yet familiar with the sawing process and this effect.
  • Lightweight. Consists of two steel plates, which are connected to each other using a special material. This allows you to significantly reduce the weight of the material, which is very important sometimes when performing complex work.
  • Product with a replaceable head. Such units are intended for use on professional classes of chainsaws.

It is very important to consider the type of devices when choosing them. However, this is not the only important point to pay attention to.

The length of the chainsaw tires. what is it and what do they affect

One of the most important parameters of chainsaw tires is their size. The longer the rail is, the larger the diameter with which you can cut the logs. However, this does not mean that you can install a long guide on a low-power chainsaw and cut thick logs. The length of the bus must match the power.

Chainsaw tire: select and install the correct option

Initially, it should be noted that the tire for the chainsaw is an element along the contour of which the chain continuously rotates. The devices are made of high quality steel, which allows you to extend the life of the product.

On the one hand, such products have holes for threaded fastening, and on the other, a driven sprocket is installed. This design of the product for chainsaws allows you to ensure the maximum smoothness of the chain, and also significantly reduces the load on the engine. Along the perimeter of the device there is a groove in which the tail of the chain moves. Special holes allow high temperature to be removed and chain lubricated to improve tool performance.

When choosing a tire for a chainsaw, it is important to pay attention to parameters such as the length of the product, as well as the manufacturer. Not only the quality of the product depends on the manufacturer, but also its cost. It is very important that the length of the bar is chosen such that it is indicated in the technical data sheet of the saw, but no more. After all, the use of devices of greater length will require not only the use of appropriate chains, but also affect the performance of the tool. Especially often the owners of household saws resort to such alterations, acquiring large tires for them, which allows cutting large-diameter trees. At the same time, the tool resource and productivity are significantly reduced, which leads to the need for repairs.

About the width of the groove on a chainsaw for a chainsaw

Before you know the size of your chainsaw’s tires, remember that there are three types of tools. household or amateur, semi-professional and professional. Chainsaws use guides with the appropriate groove width, depending on the type of tool accessory.

  • The width of the groove in the chain saw guide is 1.1-1.3 mm.
  • Semi-professional tools are equipped with devices with a groove width of 1.3-1.5 mm.
  • Professional units work with tires with a groove width of 1.5-1.6 mm.

The reason for overheating of the headset may be a mismatch in the dimensions of the width of the chain of the shank of the grooves of the tire. If the chain overheats, this leads to its stretching and, as a result, to rupture during the operation of the tool.

The normal operation of the device also depends on the condition of the guide sprocket. This sprocket will not lubricate when the tool is causing accelerated wear. Compensates for rapid failure of the controlled star with a high quality bearing. To prolong the life of this important part of the chainsaw guide, it is recommended to add grease every 8-10 hours.

Selection recommendations

When choosing a new device, you should pay special attention to the material of manufacture. It is almost impossible to assess its quality visually, so make sure that the product has the mark and the name of the manufacturer. When choosing, you should pay attention to also important, but secondary parameters:

    Shank. Most manufacturers produce components that can only be installed under their own models of chainsaws. If you buy a device from the manufacturer Husquarna, but plan to install it on a Stihl chainsaw, then first make sure that it will fit it.

If the bar and chain are correctly selected for the chainsaw, this will allow you to achieve the maximum performance of the tool, which is very important when performing work on sawing wood of various diameters and species. Do not forget to also flip the bar in the opposite direction each time you sharpen the chain to ensure even wear of the part.

Chainsaw tire how to determine the size

The correct bar for your chainsaw will extend the life of your tool and even increase the convenience of using it. The wrong choice can lead to a decrease in performance and, much worse, to faster engine wear.

When you buy a new tool, you get a chainsaw with a tire perfectly matched to its capabilities and purpose. In the event of a tire failure for a Stihl chainsaw, for example, the ideal option would be to purchase exactly the same tire from the same manufacturer.

But what if going to another city is not an option, and you can only buy tires for a Husqvarna chainsaw “locally”? Do not be discouraged or nervous. Knowing a few simple rules, you can safely choose an equivalent option among tires from manufacturers that are not the manufacturer of your tool.

Brief content of the article: