How to find out the step of the chain of the chain. The existing step sizes
What you need to know about the chain for the chainsaw
The very first thing where the choice of chain for a chainsaw begins is to understand what type you need. The main criterion for classification of chains is a marking relative to the step. The chain step is the distance between the nearest teeth (tails) or between the three rivets of the chain. It is measured in inches and the most popular sizes: 0.325; 0.375 and 0.404 inches. Each type is intended for its needs, and the choice here may be attached to read the instructions for its chainsaw. After all, each saw is immediately developed under a certain step and only professional saws can work with all three types depending on the place of work. To better understand these types, consider them separately.
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Before starting, say, another important point: each type of chain is designed for certain capacities of chainsaws and twisting moments. After all, the smaller the step, the less productivity of the chain and you need less effort to move along the wood. And the more the step is, the higher the productivity and you need more strength for work. In addition, the step affects the so.Called “aggressiveness” of the saw. It means not only performance, but also the ease of control. Speaking in simple words, the greater the step, the more the chain “tears” the wood “tears”, which means that it requires more effort to keep the tool. In addition, the larger step of the chain is more dimensions of the links, which means that the incision will be wider, which similarly requires large power costs of the tool. Therefore, buying a chain with a big step for a low.Power chainsaw is not at all practical, you can just “kill” the saw. Think about it! And smoothly proceed to the consideration of specific sizes.
This is the most minimum in the voiced size and often the most common. After all, domestic and semi.Professional, low.Power chainsaws are the most popular among the people, and this chain is for them. Recommended power under the chain 0.325. 3 liters. With. Or no more than 3.5 l. With. If your chainsaw is more powerful, you can think about a chain at 0.375 inch. But everything still depends on the tree and the place of work. If the saw is used for cutting branches and rolling of non.Weed trees or construction work, then 0.325 inches will be more appropriate. This chain makes the work more smooth, comfortable, not so “tears” the wood at the beginning of the saw. And for a person, as well as the engine, such work for these purposes is more appropriate.
Why did we write two digits? It’s simple if 3 divide by 8 get 0.375. And the parameter in the form of a 3/8 fraction is very often used for marking. The reason is ordinary so as not to confuse the numbers 0.325 and 0.375, so we are not surprised if the chain is 0.375 is difficult to find, it is better to look for 3/8 marker immediately.
A 0.375 marking chain is less popular than a 0.325 brand and is used on a 4 liter chainsaws with a power of 4 liters. With. Such a chain is already operated on a roll of relatively non.Weed trees and for cutting wood of medium thicknesses. For their group of unprofessional and professional types of saws, this is the most optimal size.
Chain 0.404 is used only on professional saws. The power of the tool for working with such a chain should be at least 5.5 l. With. Only in this way will the chainsaw be able to show all its qualities of high.Speed strong tools. And such a chain can already easily saw and bring down huge trees. From this it is also clear that for weak saws to use a chain of 0.404 is not profitable. In addition, chainsaws for a chain of 0.404 are characterized by an increased spinning moment, without which it will be difficult for a person and a tool with such a step.
Summing up now is not difficult. The main selection criterion is indicated. This is a marking relative to the step. It is not difficult to understand what is needed in this regard, it is enough to open the instructions of your chainsaw or simply compare the power relative to the above information. But do not forget another important point. The chain step must match the step of the leading and led sprockets (led, often part of the tire). That is, if your saw is intended for size 0.325, then installing a chain 3/8 will not be so easy. Together with a new chain, you need to buy a new leading star and a new tire, otherwise it will be really impossible to work (we repeat, it is impossible due to the difference in the step of the stars). And the latter, we listed three types of chains relative to the step, there are actually five of them (another 1/4 and 3/4, that is, 0.25 and 0.75 inches, respectively), but due to low popularity, especially in everyday life, we will keep silent about two other types.
Now we move on to other important issues to learn how to choose a chain for a chainsaw and professionally understand this topic.
Classification of chains of chainsaws by tail thickness.
The thickness of the tail or more precisely will say the thickness of the leading link. The second parameter of the characteristics of the saw chain. Many perhaps do not know, but the groove on the bus has different width in different chainsaws, similarly and leading links are designed for different tires. They are characterized by five sizes: 1.1 mm, 1.3 mm, 1.5 mm, 1.6 mm and 2 mm (0.043 ”, 0.05”, 0.058 ”, 0.063” and 0.08, respectively). Consider each separately.
This is the most minimum and use such miniature chains only on low.Power household saws. For loads and hard work, such a chain is not calculated.
This size, although not too different from the first, is able to withstand heavy loads. And it is this type of chain that is the most popular in the world. A 1.3 mm tail chains are used not only on high.Quality reliable household chainsaws, but even on semi.Professional devices. Such chains are light and reliable at the same time and most likely, the reader will have to choose this particular type.
The third type, which, along with the previous one is very popular, but already on semi.Professional and professional chainsaws.
Chains with a leader thickness of 1.6 mm are stronger and therefore used only on professional tools.
And the last type that allows you to use the chain for long under large loads. It is clear that it is possible to meet such a thickness only on powerful highly professional units.
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The result of the second paragraph is simple than the large thickness of the leading link, and, accordingly, the wider the groove of the chainsaw tire, the more high.Quality and able to withstand heavy loads. When choosing, it is important to know only one thing. What kind of tire costs, or what width can be used on your chainsaw model. And buying, they just turn off to buy the right type, otherwise it will not be possible to put a new purchase in any way.
The length of the tire of the chainsaw is what they are and what affects
One of the most important parameters of the tire for the chainsaw is their size. The larger the length of the guide, the greater the diameter you can saw the logs with the tool. However, this does not mean at all that a long guide can be installed on a low.Power chainsaw, and to saw thick logs. Tire length should have a power ratio.
It is interesting! The technical description for each tool model indicates the optimal tire length, which the manufacturer recommends using. The installation of a part of a smaller or larger size will lead to an accelerated wear of a saw set and tool mechanisms.
If it is not possible to find the technical passport of the tool, then you can find out the recommended length for a specific tool model in a simple way. Measure the old guide. How to measure the length of the tire of the chainsaw, not many experts know far. To find out the length of the guide on the chainsaw, you need to use the roulette, and measure the distance from the end (the bow) before the start of the cutout. The diagram below shows how the length of the tire is measured correctly.
You can also find out the length by the description, which is usually shown on the side of the headset. However, over the time of operation of the tool, inscriptions are rubbed, so this method is appropriate for cases when information can be read on the tire. Having measured the length, you can purchase the appropriate size a saw set for the tool. Why you cannot use a long tire and a chain on a low.Power saw? There are enough reasons for this, and you can describe them in the form of a list:
- Lack of engine power, which will affect the speed of sawing
- Increased fuel consumption due to increased load
- Fast engine wear and consumables
- Incorrect cyclical oil supply for lubrication of the chain, which will entail overheating of the headset, and a quick failure
If you do not want the tool to quickly fail, then it is necessary to use the appropriate size a saw set. To ensure the maximum efficiency and productivity of the tool, it is necessary to choose the right tire and circuit depending on the power of the tool. To indicate the length, such a unit of measurement as inch is used. Below are the dimensions of the guides for chainsaws in inches with their transfer to the metric measurement system:
Only after the length of the chainsaw tire is clarified, you can proceed to the choice of a new part. There are also 38, 33 cm long devices and others. The length of the part of 45 cm is far from the largest option. Professional high.Power units are equipped with devices whose length reaches 75 cm.
What is a chain step and how to determine it?
Traditionally, in any field, a certain distance between the objects walking one after another means by step. If we talk about the chains of chainsaws, then the step determines the distance between the axes of the rivets located through one rivet from each other. The same length will coincide with the distance between the tips of the links entering the groove of the tire. Therefore, to determine the step of the chain of the chainsaw, it is enough to measure the indicated distances. You will succeed in millimeters, but the step is indicated in inches, which means that the resulting value must be divided into 25.4. As a result, get your step. True, on old stretched chains, this value will be slightly larger, but nevertheless it will still be close to one of the standard sizes.
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Chains having a greater step have greater performance. This is due to the fact that at a great distance between the teeth, the latter are deeper into wood deeper into the wood. Hence the great performance. But for the use of such productive chains, a sufficiently powerful chainsaw is needed. Since not all saws have great power, there are also chains with a lower step. However, it is worth noting that there are also low.Profile chains with a smaller tooth size. If you take a low.Profile chain with a big step and compare it with a high.Profile with a lower step, then the latter will have more performance. In general, low.Profile chains are used on the lowest saws used in everyday life.
So what steps are there on chains of chainsaws? The dimensions will be as follows:
And if the circuit is low.Profile, then usually the letter p is added to the designation. For example, 3/8 ″ p. Actually with 3/8 ″ step mainly and make low.Profile chains.
Well, comparing the chain different in step, it should be noted that the chain with a big step due to the fact that it crashes deeper into a tree, creates a large vibration. Because of this, the accuracy of the cut is reduced, since it is more difficult to hold a chainsaw in your hands. Therefore, for greater cutting accuracy, when performance is not so important, it is better to use a chain with a lesser step.
Step characteristics of the saw chain
To choose the right chain, it must coincide with the bus along its length, width and other structural elements.
Household appliances are most often equipped with chains with 3/8 steps “. They differ in smooth moves and a sufficient degree of reliability and safety.
Professional class models with a high cut speed and increased power use a larger link. 0, 404 “.
An attempt to choose such a tire for a household chainsaw will most likely lead to its overload, increased wear and Rapid failure of engine parts and transmission.
How to find out
To determine the step of the chain used on your chainsaw, they usually use one of the following methods:
- Remove the tire and read the marking on the shank. In addition to the desired parameter, the headset length, the width of the groove between the cheeks, as well as the sprocket module is mandatory there.
- If the packaging remains, then you can look at it. Leading manufacturers print not only a step on it, but also the type of tooth, width, a file of a file for tightening.
- Measure the distance between the two neighboring parts of the links. These can be the bases of the teeth, their tail parts, and the centers of the rollers. For videos you need to take three neighboring.
The productivity of the tool directly depends on the step, so it is larger in professional models. It is strictly not recommended to adapt to powerful tire chainsaws with a little step. The underloading of the engine will also lead to the accelerated wear of its parts and the reduction in the resource of high.Quality productive chainsaw.
For each class of operations, it is better to choose a separate chainsaw, which is most appropriate for it in terms of characteristics.
During the selection of grooves and cutting the internal cuts, you have to work the very end of the tire. In this case, the probability of the selection (or rebound) of the saw is high. This is another argument for the acquisition of two saws: powerful highly productive for mass operations and cuts of thick logs or beams, and a small model with short sets and a small step for finalizing curly cuts, grooves and other thin details.
Accounting for the length of the chain
Another important parameter can be called the length of the chain. It largely determines how much the product has links. Famous manufacturers indicate the length in inches and the number of links. The features of the choice for this indicator can be called the following:
- With an independent purchase, it is recommended to take into account both parameters.
- Mastery manufacturers indicate how long such a product should have.
If the length of the length is incorrectly, significant difficulties arise in installing. An example can be called sagging and a strong tightness. In both cases, increased wear occurs and the chain can break.
The thickness of the tail
The thickness of the elements depends on this characteristic, as well as the width of the leading link. There is a direct connection between it and the size of the groove of the tool intended to stretch the chain. When choosing a saw chain, it should be taken into account that it can fit in the groove.
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The thickness of the tail affects the strength and qualitative properties of the chain, its reliability and endurance. Standard values of 1.1, 1.3, 1.5, 1.6, 2 mm are considered standard. The narrowest chain is used in compact houses of domestic class.
The procedure for following the cutting links
In most cases, the procedure for placing cutting elements can be three types.
The cutting links are the main elements of the saw chain and have high cost due to the complex manufacturing process. Manufacturers, changing the order of cutting teeth, reduce their number and thereby reduce the cost of the finished product. But at the same time, due to the missiles of links, the effectiveness of the tool is noticeably reduced, and the chain wear out faster.
Marking chains for chainsaws
Category: Tool | Published: 11-12-2017, 14:33
In some situations, the owners of chainsaws may have some confusion in the understanding of all designations of marking chains for these tools. As a result, this lead to unsuccessful purchases.
The choice of chainsaws is often determined by only a few basic criteria, one of which is the chain step.
This indicator helps to highlight the future capabilities of the tool, including its speed of the cut, and also according to the norms must comply with the engine power level. How are chains marked? Let’s figure it out!
Step and its size
A step is an intermediate distance between the three rivets that are located nearby. For the correct calculation of the chain step, the distance between the axes of the three rivets placed near each other should be measured. In the form of a formula, this looks as follows:
Where, l is the size of the step length, which in a chainsaw characterizes the degree of remoteness of two teeth in relation to each other;
S is the value of the gap between the two extreme rivets of three.
The step value can also be equal to the length of the distance between the two neighboring tailings.
By increasing the size of the chain step, it becomes possible to increase the performance of the chainsaw. However, in this case, the degree of effort is changed to the rotation of the drive asterisk. And the higher the chain step, the greater the power of the engines should be and more physical forces are spent for its extension when sawing materials.
Taking into account the size of the step, at the moment the chains are not divided by several subtypes: