How to measure chainsaw tire length

Chainsaw chain marking

This is the defining parameter, and depending on its value all existing chains are subdivided into five groups with steps of 1/4”, 0.325”, 3/8”, 0.404” and 3/4”.The 1/4″ (6.35 mm) pitch is for small chains on small, low-powered one-handled saws.

Chains in 0.325” (8.25 mm) and 3/8” (9.3 mm) pitch are the most common. than 80 percent of chainsaws manufactured around the world come with a guide bar.

0.404” (10.26 mm) and 3/4” (19.05 mm) pitch chains feature larger links and better performance. For decades it was fitted to Russian-made saws but now only on heavy-duty feller-blades and harvesters.

The longer the chain pitch, the coarser the chain links and the higher the cutting performance, but the wider the kerf. power is needed to overcome increasing cutting resistance. Chains with a small pitch have other advantages. more teeth per unit length, smoother sawing motion and therefore less vibration, cleaner cut.

drive link thickness. The chain slides in the guide bar during work, and this sliding has to be smooth, without jams and at the same time without excessive “chatter. Thickness of shank and groove must match each other perfectly for a more secure fit and less chance of the chain jumping off. Five standard sizes are available:

  • 1.1 mm (0.043”) for low power saws
  • 1,3 mm (0,050”) domestic and semi-professional chains,
  • 1.5 mm (0.058”) powerful and high-performance saws,
  • 1,6 mm (0,063”) and 2,0 mm (0,080”) high performance chainsaws.

The intended use imposes its own requirements on the chains used. For example when you have to saw hard and dirty wood or in demolition and construction sites it is better to use the special solid carbide chains Picco Duro or Rapid Duro with tungsten carbide teeth or lugs giving them an unrivalled strength and durability in use. Some jobs just can’t be done without them.

It is also known that for longitudinal wood sawing (lengthwise) it is advisable to use special chains. The main difference between longitudinal and crosscutting chains are the cutting angles. For cross-cutting chains they are 25-35 degrees. Luffing lines (STIHL Picco Micro X lines, for example) have sharper angles of 5 to 15 degrees.

the use of chains that do not correspond to their intended use results either in low efficiency or increased aggressiveness, strong vibration and additional stress on the chainsaw engine.

Additional chain features are profile height and depth of cut.

Chains are available in high and low profile depending on the height of the cutting edge above the plane of the guide bar. High-profile chains are normally used for professional applications to maximize cutting performance. Low profile chains are used in chainsaws for domestic and hobby chainsaws, i.e.к. they are safer because of increased support area of cutting links and reduced thickness of cuttings.

Depth of cut is the amount of clearance between the top edge of the tooth and the kerf that controls the thickness of the chip. Most commonly found with 0.025 in (or 0.635 mm) and 0.030 in (or 0.762 mm) clearances, less commonly with up to 0.07 in (or 1.778 mm) clearances, the latter designed for machine felling units.

Chainsaw guide bar: choosing and mounting the right one

Household, semi-professional and professional chainsaws have the same design, regardless of cost or performance. The cutting attachment, which includes the chainsaw bar and saw chain, belongs to the category of replaceable equipment.

Deciding which tire to use on a chainsaw is a decision to be made by the owner based on many factors. First of all these are compatibility of the seating and lubrication channels in the working area, engine power, and the specifics of the work to be done.

The advice of an experienced chain saw specialist or information from the chain saw instruction manual can be of great help when making your own choice of guide bar.

In particular, the long saw set is preferred for felling and sawing large-diameter trees, the short one for tree crowning and preparation for construction timber.

measure, chainsaw, tire, length

Overall design

In the standard solution, the chainsaw guide bar is a high-quality piece of elongated oval steel.

One end has holes for a threaded fastener; the other end of the long guide bar is fitted with a sprocket. This bar arrangement provides for smoother running of the chain and reduces the stress on the motor.

There is a groove around the bar to fit the shank of the saw chain. Metered amounts of chain oil are fed into the working area via special holes for cooling and lubrication.

Dimensions

The guide bar on a domestic category chainsaw is 1.1 or 1.3 mm wide. The same figure for professional models is 1.5-1.6 mm. mismatch between the thickness of the chain shank and the width of the slot can cause overheating of the bar and early failure. In the other case, the chain can leave the groove or break it.

Similar problems can occur if the chain and drive train pitch do not match. In many chainsaw models replacing the drive sprocket involves time-consuming disassembly of the clutch assembly. In some cases, service equipment is required.

Sprocket and saw chain pitch are the most common on saws under 3 liters.с 0.325 inch. A 3/8″ pitch is typical for professional chainsaws.

Tire sprocket wheel is not centrally lubricated. This disadvantage is compensated by the high quality of the bearing, which has to be lubricated every 8-10 operating hours. To replace a complete chain saw sprocket, you have to go to an equipped repair shop.

Selection criteria for tire quality characteristics

A small selection of common fitment sizes are available. Typically, each manufacturer uses its own standards, eliminating the possibility of operating a chainsaw with other brands’ sawing equipment.

  • The selling price of guide bars is determined by the size, material quality and brand recognition. The most expensive are the best quality and long-life products of the leading manufacturers.
  • High cost of branded tires is fully compensated by high wear resistance and long service life.
  • In the medium price range there is a range of budget tires that can be fitted to household gasoline and electric saws. With proper operation and skilled maintenance, the Standard bars produce a longer service life than the one specified by the manufacturer.

Less popular are cheap, nondurable tires made in China, which are mounted on minimum-price range chain saws. A large proportion of these products are sold under well-known brand names.

How to eliminate the possible risks of buying counterfeit tires?

In the information field there are signs, by which it is not difficult to distinguish the original brand chain saw from the most reliable fake. As for tires, their advantages and disadvantages are revealed directly in operation.

In the domestic market of home appliances about 15% of the total sales volume of chainsaw parts is the unknown origin third-rate counterfeit, which produces a standard resource in half at best.

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It is not economical or safe to operate a chainsaw with a counterfeit bar and chain. A considerable part of traumatic situations is created by the use of tire and chain counterfeit.

You can buy a good-quality, long-life brand-name chainsaw with the right model and without major risk at a legitimate dealership or dealership. In the absence of such a possibility, you should use the services of a reputable, trustworthy online store.

Consumer demand leaders

In the process of natural selection the products of the leading European and Asian manufacturers of chainsaw equipment took the first places in the sales rankings. Top demand for STIHL, Husqvarna, Makita and other brands.

Measuring tire size for Flashcal

Oregon tire has proven itself in all respects, which in different modifications completes the removable equipment of saws of medium and higher price levels.

Design features of home and professional chainsaws

The design of modern chainsaws is constantly being improved. Partial modernization resulted in the development of the so-called narrow bar.

Structurally, such models have a different shape of the tip that prevents kickback when the headset enters the kerf. Most home gasoline-powered machines have narrow bars. The wide toe is a characteristic feature of this guide bar, which is designed for more demanding sawing jobs as well as professional-grade chainsaws.

Choice of guide bar lengths according to drive power

The length of the new guide bar is determined by the power and torque of the power tool.

  • Chainsaw models with small and medium power outputs are available with guide bars between 30 and 40 cm in length.
  • Longer saw kits put excessive loads on the engine and the kinematics of the tool, which negatively affects its traction characteristics and service life.
  • Check your application manual for recommended guide bar length. This means that a shorter guide bar cannot be ruled out, but there are some restrictions on using a longer bar.

Design and principle of operation

To be able to troubleshoot a machine yourself you need to have a good understanding of the chain saw. It is a tool that is powered by an internal combustion engine with a single cylinder. Fuel oil. gasoline. The saw mechanism is driven by a single-stage chain gear and is enclosed by a guard for safety.

The main design elements are the air cleaning system, chain mechanism, motor, tensioning device, ignition elements, flywheel and clutch. Many small parts connect the major components and contribute to the reliable operation of the unit.

Automatic centrifugal clutch properties depend on the number of revolutions of the power unit. Low rotational speed does not transmit rotation to the drum. Only when a high RPM is reached does the centrifugal force exceed the spring force, causing the drum to rotate. The chain and sprocket at the front are in motion.

Executive Summary

A well-balanced chainsaw, a chain and a carefully chosen guide bar will allow you to work efficiently and with peace of mind without expending excessive physical and material resources. And you should always understand that the choice of components in the chainsawing process, including the choice of guide bar, depends on the type of wood to be cut, working conditions, and the craftsman’s professional skills. all of this is purely individual and comes with experience.

Not everyone knows how to measure a chainsaw tire. Chainsaw chainsaws are available in a limitless combination of sizes, types, and features. This is because chainsaws themselves vary in size and application. When it’s time to replace the chain, it’s especially important to have all the right information about the chainsaw and its chain size. Only then will you be able to make the correct replacement.

Choosing the right chain to a chainsaw is a little more complicated than finding other power tool accessories because of the unique way in which a chainsaw tire is measured. The information below explains how chainsaw chains are measured, the difference between these measurements, and how to quickly find the measurement numbers needed to order the right chain.

The chainsaw’s chain length is compared to the saw’s bar measurement. Some manufacturers sell replacement chains based only on the measured bar. It is important to know that there are no universal chains. A chainsaw with a long bar will require a correspondingly longer chain. However, an accurate means of determining chain length includes several measurement options that ultimately affect how well the chain fits your chainsaw.

First of all, it is worth considering how to measure the length of a chainsaw bar?

  • Measure the distance from the tip of the chainsaw to the point where the bar first comes out of the body of the saw. A tape measure comes in handy for measuring and getting this information. You need to round up the measurements to the nearest even number if the number was not accurate. The resulting number is the bar measurement. The most common bar values are 16, 18 and 20 inches.
  • Lay out the chain on a flat surface. Look for the chain links, sometimes called lugs. These links protrude from the bottom of the chain, and they grip the gear drive, feeding the chain. Count the number of drive links in the chain.
  • Determine the height of the chain. Measure the distance between any 3 consecutive rivets holding the chain together. Measure from the center of one rivet to the middle of the third link. Rivets are visible between the drive links and the cutters, the cutting teeth that lie on top of the chain. Divide the measurement by 2 to find the height. The pitch, along with the number of drive links, describes the length of the bar you need when looking for replacement chains.

Things you’ll need: a tape measure. A chain that does not fit properly on a chainsaw is a hazard. So if you’re unsure of your choice, ask a professional to help you determine the length of the bar and choose the right chain. Consult your chainsaw manual to make sure you’re buying the right type of chain.

Read all safety warnings in the manufacturer’s manual before operating a chainsaw or any power tool. Before changing the chain on your chainsaw, disconnect the spark plug or battery to make sure the chain cannot start accidentally.

Also, chainsaw owners can read a helpful article on how to change the sprocket on a chainsaw.

Here are steps you can also take before you start looking for the right chain.

  • Find the chain pitch measurement by finding it on the tool, in the owner’s manual, or by dividing the distance between the 3 links by 2 (it is recommended that this be done by a professional).
  • Get a chain measurement either by finding it on the tool, in the owner’s manual, or by measuring the thickness of the chain drive links. All measurements should be accurate.
  • Count the number of individual drive links in the chain. No exceptions. Now the good news is, the rest is easy to do. If you have these three numbers, the right replacement chain will only take a few minutes. All you have to do is enter the correct measurements and number of links into a simple formula or online measurement calculator, and it will automatically determine the tire length.

All unique tire measurement systems require a little familiarity with terminology and other technical things. If you want to buy a new chain for your chainsaw, this guide will help the best. With the information provided in the article, it will be easier to narrow down your choice to the chain you need in your particular case.

Use whichever method you feel most comfortable with. The tire measurement is different than the actual chain length. Tire measurement is important when you are replacing a chain or buying a chain for a future replacement. It is important for every chainsaw owner to know how to measure a chainsaw bar. The tire measurement expresses the length of the chainsaw guide bar, not the entire length of the tire, which is actually slightly longer. If you want to know the true length of your tire, you’ll need not only a tape measure, but also the effective measuring methods outlined above.

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I’ve never owned a chainsaw before, so I’d like to buy a spare chain on the chance I get one. Read, from 30, to 40 cm 12 to 16 inches I can not figure out how long the bar (how to measure correctly)? Saw Efco 136 Thanks a lot!

AndryL wrote: I want to buy a spare chain. I can’t figure out how long the guide bar is (how to measure it correctly)?

when measuring chain length, you just need to count the number of drive teeth. You only measure the working part of the bar and what’s under the cover doesn’t count

The good tires have a marking that indicates the chain pitch. The thickness of the drive link and number of links. my bar with a 43cm long cap to end (with the chain stretched) has a 17″ marking on it

A chainsaw at home

A chainsaw is an essential tool for every private homeowner.

Amateur chainsaws are the most powerful of all chainsaws.

Semi-professional chainsaws

This class of chainsaws includes models that have sufficient power and are able to work both at felling and at construction sites.

Half-professional chainsaws weigh 5-6 kilograms. A semi-professional chainsaw is ideal for a person starting to build his or her own house, where a lot of woodwork is required: creating a roof frame, laying flooring, etc.д. And even after construction work is over they will be irreplaceable aids in the garden and on the site.

Professional chainsaw

Professional chainsaw models are the most powerful.

measure, chainsaw, tire, length

At home, it is not easy to cope with such a chainsaw without professional skills. It has a high vibration level and weighs considerably more than 6 kg. This is a tangible strain on the hands, especially for those who are inexperienced with such a tool.

How to choose a chainsaw guide bar length

There are three types of chain saw bars: narrow flat bars, lightweight bars, and bars with interchangeable heads.

Narrow, flat chain saw bars

These bars are put on domestic chainsaws that will be used by non-professionals. The narrow guide bar is paired with a low-profile chain and has almost no such drawback as kickback. This is designed to minimize the risk of injury while working with the tool.

measure, chainsaw, tire, length

Lightweight chainsaw tires

Light bars are made of steel and consist of two plates with polyamide sandwiched between them. This design is created specially to reduce the overall weight of the chainsaw, which considerably affects the quality of certain work. For sawing at height, for example, is much easier with a narrow bar than with a regular saw.

Chainsaw guide bar with interchangeable heads

A professional-grade guide bar designed for heavy-duty chainsaws that you work with every day for many hours.

In addition to the bar type, you should also pay attention to the length of the bar

This must not be exceeded. The smaller size is allowed. By the way, if you have to choose between two models of the same power, then for small trees or boards it is better to take the one with a smaller guide bar, because it has a higher cutting speed.

Chainsaw chain

0.325″ pitch for residential low-profile chains. This is the optimal size for short cuts. Chains with this pitch have low vibration. Such a chain cannot withstand continuous use and will dull quickly.

Powerful chainsaws have chains with a pitch of 3/8 or 0,404. They can work long and cut thick trees. But even such chains are not designed to work with frozen or muddy wood. Chains with carbide inserts are available for such applications.

Please note that when you buy a chain saw you are automatically held hostage by that brand because accessories from different manufacturers do not fit together. Т.е. The chainwheel, sprocket, bar and chain must be from the same factory and if it breaks you have to look for a part of the same brand, otherwise you just can’t put it back together.

Chain saw kickback protection

Backfire protection comes in two forms: with a special brake or an optional deflector. The brake is more common. It looks like a lever that can be switched in two positions.

This protection is not available on Swedish chainsaws, as loggers in Sweden use the end of the bar when cutting timber. And it’s officially allowed.

Chain saw anti-vibration protection

When choosing a chainsaw, be sure to ask the salesman to turn it on and hold it in his hands.

The chainsaw remains a very dangerous tool

Measure pedal crank length

That’s why you should pay special attention to how to choose a chainsaw. In the next article I will tell you how to sharpen a chainsaw chain

How to Measure a Chainsaw Tire Length

Chainsaw bar length. Do you have to consider?

A chainsaw. one of the most necessary and available at least every diligent owner tool: neither the dacha owner, nor the owner of a personal home can do without it. How to tension the chain correctly chain saw cutting firewood, pruning trees and shrubs, construction or repair of pergolas, benches, porches, etc.д chain saw is always a 1-st assistant in such household chores. Professionals at severe construction sites and logging sites can’t do without it either.

How to choose a tire for a chainsaw

pila.prom.ua. Parts, gadgets and equipment for forest and garden. Subscribe to our channel:.

How to pick up a tire and chain on a chainsaw. To pick up correctly as cutting as pitch of chain and length of bar number of. All the nuances

Lizzerl many such videos in the web, but complicated and incomprehensible to the average user. I tried.

What’s the risk of using very long or very small tires if you don’t think ahead? To begin with, exceeding the chainsaw manufacturer’s recommended tire size is categorically not. The smallest size is allowed within reasonable limits, but also not recommended: there is a worldview that a small chain provides the smallest load on the tool, but it should be kept in mind that it causes severe damage to the saw headset. How to measure chainsaw tire length? | 101 Chainsaw. The permissible range of variation must necessarily be specified by the manufacturer in the technical documentation that came with the saw.

Long chain saw bars make it easier to work with thicker material, for example, to make the deepest cut in a thick log. The length of the chain saw bar is one of the most important. But the introduction of a long guide bar in combination with a low-powered machine will give one disappointment: the motor power will not be enough to rotate the crankshaft, which means rapid sawing will simply be impossible. To properly prepare fuel, it is not necessary to use for a chainsaw as the best. The sawing process will be slow, gasoline consumption will be increased, and the motor will wear out instantly.

The shorter bar length with the right tool power will produce faster cuts and is ideal for work with small trees or boards.

As a rule, the length of a guide bar is marked in inches by foreign and Russian producers. The tires are marked in 2-inch increments. Below is the equivalent in the usual metric length system for Russians:

measure, chainsaw, tire, length

Dimensional characteristics

The guide groove of a chainsaw tire of the domestic category, has a width of 1.1 or 1.3 mm. The same figure for professional models is 1.5 to 1.6 mm. mismatch between the thickness of the chain shank and the width of the groove can initiate overheating of the guide bar and its premature failure. Alternatively, the chain may fall out of the groove or break off.

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Similar consequences can occur if the pitch of the chain and drive train is not the same. In many chainsaw models replacing the drive sprocket involves time-consuming disassembly of the clutch assembly. In some cases service and repair equipment is required.

Sprocket and saw chain pitches for saws under 3 liters are the most common.с 0.325″. A 3/8 in. pitch is common in professional chainsaws.

Drive sprocket is not centrally lubricated. This disadvantage is compensated by the high quality of the bearing, which has to be lubricated every 8-10 hours of operation. To replace a complete chainwheel sprocket, it must be in an equipped repair shop.

Materials. what chains are made of

This is one of the most important parameters on which the service life depends. Cutting teeth are made of alloyed steel and are not heat-treated. If you encounter a device, the teeth of which are heat-treated, it means that the product is not designed for sharpening. Usually these devices last a long time, but blunted teeth require immediate replacement.

The headsets are available with diamond or pobedite sprayed on the teeth. The cost of the devices is several times more expensive, and it is better to buy them when you need to work with hard and frozen types of wood.

Quick summary

Balanced chainsaw, chain and carefully chosen guide bar will allow you to work efficiently and calmly without spending excessive physical and material resources. And it should always be understood that the choice of the components of the chainsawing process, including the choice of guide bar, depends on the type of wood to be processed, working conditions, professional skills of the master. all this is purely individual and comes with experience.

Not everybody knows how to measure a chainsaw guide bar. Chainsaw chainsaws are available in a limitless combination of sizes, types, and features. This is because chainsaws themselves vary in size and application. When it’s time to replace the chain, it’s especially important to have all the correct information about the chainsaw and its chain size. Only then will you be able to make the replacement correctly.

Selecting the right chainsaw chain is a little more difficult than finding other power tool accessories because of the unique way in which the chainsaw bar is measured. The information below explains how chainsaw chains are measured, the difference between these measurements, and how to quickly find the measurement numbers needed to order the right chain.

The chain length of a chainsaw is compared to the measurement of a guide bar. Some manufacturers sell chains for replacement based only on the measured bar. it is important to know that there is no such thing as a “one size fits all” chain. A chainsaw with a longer guide bar requires a correspondingly longer chain. However, an accurate means of determining chain length involves several measurement options that ultimately affect how well the chain fits your chainsaw.

First of all, it’s worth considering how to measure the length of a chainsaw bar?

  • Measure the distance from the tip of the chainsaw to the point where the bar first comes out of the body of the saw. A tape measure comes in handy for measuring and getting this information. Round up the measurement to the nearest even number if the number was not accurate. The resulting number is the tire measurement. The most common bar values are 16, 18 and 20 inches.
  • Lay out the chain on a flat surface. Look for chain links, sometimes called lugs. These links protrude from the bottom of the chain, and they grip the gear drive, feeding the chain. Count the number of drive links in the chain.
  • Determine the height of the chain. Measure the distance between any 3 rivets that hold the chain together. Measure from the center of one rivet to the middle of the third link. Rivets are visible between the drive links and the cutters, the cutting teeth that lie on top of the chain. Divide the measurement by 2 to find the height. The pitch, along with the number of drive links, describes the length of bar you need when looking for replacement chains.

Things you will need: a tape measure. A chain that does not fit properly on a chainsaw is dangerous. So if you’re not sure, ask a professional to help you determine the length of the bar and choose the right chain. Consult your chainsaw’s manual to make sure you are buying the right type of chain.

Read all safety warnings in the manufacturer’s manual before working with a chainsaw or any power tool. Before replacing the chain on your chainsaw, disconnect the spark plug or battery to make sure the saw will not accidentally start.

Also, chainsaw owners can read a helpful article on how to change the sprocket on a chainsaw.

Here are steps you can also take before you start looking for the right chain.

  • Find out the chain pitch measurement by finding it on the tool, in the owner’s manual, or by dividing the distance between the 3 links by 2 (it is recommended that this be done by a professional).
  • Get the chain measurement either by finding it on the tool, in the owner’s manual, or by measuring the thickness of the chain drive links. All measurements must be accurate.
  • Calculate the number of individual drive links in the chain. No exceptions. Now the good news is, the rest is easy to do. If you have these three figures, the right replacement chain will only take a few minutes. All you have to do is enter the correct measurements and number of links into a simple formula or online measurement calculator and it will automatically determine the tire length.

All unique tire measurement systems require a little familiarity with terminology and other technical things. If you want to buy a new chain for your chainsaw, this guide will help the best. With the information provided in the article, it will be easier to narrow down your choice to the chain you need in your particular case.

Use whichever method you feel most comfortable with. The bar measurement is different from the actual chain length. Measuring the tire is important when you are replacing a chain or buying a chain for a future replacement. It is important for every chainsaw owner to know how to measure a chainsaw guide bar. Measuring the guide bar expresses the length of the chainsaw’s guide bar, not the entire length of the bar, which is actually slightly longer. If you want to know the true length of your tire, you’ll need not only a tape measure, but also the effective measuring methods presented above.

Good day, dear readers!

Dacha and construction season in some places is gaining momentum, and in some places it is boiling at full power for more than the first month. And at this time, certain tools are gaining in popularity. One of them is a chainsaw. What the tool is, we will talk about another time.

In the meantime I would like to tell you everything you need to know about the numbers on the chainsaw bar.

The guide bar, in simple and clear language, is a metal plate with a notch along the whole area.

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