If you have a rim drum set up, the rim itself will be marked with the pitch and number of teeth. Caveat: some aftermarket rim/drum sprockets do not fit the Stihl rims Also, with the 026’s I have I have had difficulty with aftermarket sprockets as they all seem to be for the 026 pro which is different fitment. I have ordered sprockets from three different vendors and they all sent me a sprocket that didn’t fit even though it was supposedly for the 026.
72.John DeereNotesBar LengthReplacement Chain SizeNumber of Drive Links8, 9, 61, 81, 91Chain length may vary depending on make of bar. 78.2036, 2040Some models used 3/8″.050 chain. “Models with chain brakes use 3/8” low profile chain.
In actuality, chain size is determined by the chain pitch. To measure the chain size, if you have just the sprocket, use calipers to measure between the teeth. If you have the chain, the chain size is often stamped into the side of the chain link.
If the chain is near end of life you might let is stay a while longer, but such a bar does not need to be allowed to wreck a new chain. As far as the drive sprocket goes… change it every two chains is what the manufacturers of the saws and sprockets all seem to say. If you can use an Oregon clutch/sprocket system with replacable sprocket then the drive sprocket replacement is only going to run about $5, a whole lot less than a chain.
how to identify chainsaw sprocket Related Question:
Are all chainsaw drive sprockets the same?
Sprocket Size & Gearing The pitch of your sprocket, the pitch of your saw chain, and the pitch of your bar tip must all match. On most pro saws this will usually be: . 325″, 3/8″, or . 404″.
Are chainsaw sprockets gauge specific?
Drive sprockets can drive any gauge chain, only the pitch matters.
Which is better Rim sprocket or spur sprocket?
Rim sprockets are better than spur sprockets because they are easy to maintain, offer increased flexibility and have a lower cost. Unless you have a very specific use case, you will be happier with a rim drive sprocket and so will your chainsaw.
When should I replace my chainsaw sprocket?
The chain sprocket must be replaced if the depth of the wear marks reaches about 0.5mm, i.e. the wear limit. A seriously worn chain sprocket can cause the chainsaw chain and guide bar to wear at an increased rate, as well as reducing cutting performance too, so it’s important to keep an eye on.
What is a drive sprocket on a chainsaw?
What is the drive sprocket? The drive sprocket and the clutch drum are connected to the saw motor. The sprocket is designed to drive the proper-pitched chain around the guide bar.
What is the difference between .325 and 3/8 chain?
The . 325 may be smaller and faster, but it may not be your best bet for your everyday needs. The three-eighths-inch chain is durable and lasts longer than its smaller cousin. This makes it one of the more popular switches for chainsaw users who want to get more out of their saw.
How do I know what size file I need for my chainsaw?
Simply put, the type of chainsaw file you need directly corresponds with the size of your chain pitch. The larger the pitch will mean the higher the cutting teeth will be. The higher the teeth will therefore mean the larger the file will need to be.
Are all chainsaw depth gauges the same?
A: When depth gauges are uneven, each cutter tooth on the chain takes a different sized bite. This causes the chain to cut rough and vibrate. If the depth gauges are higher on one side than the other, this causes the chain to cut crooked. The cut will pull in the direction of the side that has the lower depth gauges.
What do the numbers on a chain saw chain mean?
0.050″ (1.3 mm) and 0.058″ (1.5 mm) are most common, 0.043″ (1.1 mm) and 0.063″ (1.6mm) less common. Pitch and gauge together determine the size of chain. Length is determined by counting the number of drive links, also called drive lugs. (see picture below).
How long does a chainsaw sprocket last?
Even though sprocket maintenance is such as an important aspect of overall chainsaw maintenance, many tree professions tend to overlook it. The sprockets should ideally be changed every two to three chains. It’s also crucial you buy a sprocket that’s compatible with the chain on your saw.
Do chainsaw sprockets wear out?
Spur sprockets typically cost around $22 to $30. Please keep in mind that all sprockets will exhibit wear or grooves after use but do not need to be replaced until the chain will not rotate smoothly.
How long does chain last on chainsaw?
The lifetime of a chainsaw chain has no fixed limit and depends on usage and maintenance. The chain should last many years; 5-6 years should be no problem. However, if the chainsaw chain is used properly and taken care of, it can last way longer.
When should I replace the sprocket on my Stihl chainsaw?
To maintain the service life of your saw chain, STIHL recommends that you replace the sprocket on your chainsaw after you have gone through two chains or sooner if the sprocket shows more than 0.5 mm of wear. STIHL advises alternating between the two saw chains to help keep the sprocket from wearing out prematurely.