8 pin is rarely faster at the end of the day or a week of work (When you figure in all of the "stallouts"), and is a lot harder on your clutch and saw overall. The sprocket on the tip are not like super worn as far as I can tell - there is some roundness to the points. It's simply torque multiplication Yes, the pitch of the chain has a direct effect on the drive sprockets diameter. Two-piece design includes a drum with a replaceable rim, allowing rim to be replaced multiple times before the entire unit is replaced. Item: .325 Pitch X 7 Or 3/8 X 7 Tooth Rim Sprocket Select In Options Drop Down Box.Mini Spline. : Herr 193-A7, Stens 085-269 If you cut lots of hardwood, like oak and maple, or need to use a longer bar, then increased torque is what you need. PN: Replaces Oem 1121 Model Fit: Stihl 024 026 Ms 260 Designed To Fit Original Stihl Clutch Drum (1121 160 2900 Or 1121 160 2910) Condition: New Notes Helpful Hints: This Rim Sprocket Is Designed To Fit The Stihl Oem Clutch Drum Will Not Fit Aftermarket Drums link to What is an Axearoon? The teeth of the chain sprocket press against the drive link tanks and the saw chain starts to rotate. JavaScript is disabled. The Forestry Forum is sponsored in part by:
On any smaller saw stay with a 7. my stock 026 I run 3/8" 7 pin and a 18" bar. You are using an out of date browser. Bar length and chain gauge have a big role in whether changing the sprocket will be a success or a failure. Yes, there is a 9 tooth sprocket, but it is used in very specialized situations and requires a special bar profile to decrease the risk of chain derailment.
Gearing is essentially slowing down or speeding up your chainsaws chain in order to increase cutting power or speed. . not a rim type spocket. Sounds like a mistake.?? Yeah, itll pick up chain speed, but loose torque. However unlike the acceleration vs. top speed equation you get with a car, in a chainsaw it's mostly a question of balancing the load on the chain with the engine output at full throttle. 7 pin. Additionally, the change in sprocket diameter will change the tolerances between the bar and chain, especially when moving up a size. BrandName Adefol.
Our 8-tooth sprockets conform to international ISO, DIN, or American ANSI standards. If it were mine Id want a 7 pin on that saw. imagelinks[3]="https://woodmizer.com/Store/Shop/Portable-Sawmills/LX25-Portable-Sawmill?utm_source=forestryforum.com&utm_medium=banner&utm_campaign=lx25&utm_term=2023-02-10&utm_content=800x160"
325" 8T. $29.99 The chart below is a very general guide to get you started but is in no way complete or definitive. JavaScript is disabled. Fewer cutters allow for more efficient chip removal but cut slower. A quick check on the Oregon website shows model 111188X .325, 7 tooth spur sprocket for your saw - but check to be sure. I will look the saw over to make sure there are no other issue from the broken sprocket (it broke at the hub and is is loose on the shaft). Find many great new & used options and get the best deals for Oregon 32064X Spur Sprocket Kit Stihl 048 048AV 3/8" 7 Tooth 1117 640 2001 at the best online prices at eBay! More oiling for chain speed and generally faster cutting. function random_imglink2(){
Stove #1 - VC Encore 2550 catalytic - Burning almost 24/7 in LR as primary heater (and making LOTS of creosote! The chain driving portion of the sprocket and the clutch cup are fused together, so when it wears out, you need to replace the whole component. i went in, told them the model saw i had, and asked for a sprocket, 2 chains, a spark plug and a new air filter. . But if your cutting load is higher or if the bar sizes are bigger than 20", use the 7 teeth sprocket. For heavy users who wear them out on a regular basis, this is a plus. Pitch: 3/8", Size: Small 7 Spline, Tooth Count: 7. Find many great new & used options and get the best deals for Stihl sprocket 1118 640 2001 8 mm, 0.325'', 7 teeth original new! It may not display this or other websites correctly. Stihl - Aftermarket Chainsaw Sprockets - RIM SPROCKETS. Spline Type Tooth Count - Chain Pitch Standard 6 8 Tooth - .404" Small 7 7 Tooth - .325", 7 Tooth - 3/8", 8 Tooth - .325" Standard 7 7 Tooth - 3/8", 7 Tooth - .404", 8 Tooth - 3/8", 8 Tooth - .404", 9 Tooth - .325" Oregon Power Mate Replaceable Rims Radial Ports See the back for an explanation of these Oregon symbols . But my big saws Stihl 044 and 660 I can't see a problem with an 8. Most of the saw mechanics are under paid, and for the most part know little about the equipment they work. 4+ cords stored on a 1/7 acre suburban lot. Updated: 00/04/25
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I have included a couple of pics of the broken sprocket. This can cause increased wear on the bar, chain, and clutch assembly. Sign up for newsletter today. The rim gets most of the sprocket wear, and by being replaceable, it extends the overall life and value of the sprocket system. This rim also has wear depth indicators which tell you when to replace your rim. (I think my bar is ok. Changing the drive sprocket tooth count on your chainsaw will change its performance characteristics. Tree cutting skills. Where do you find log turner chain & sprockets? It has been a great saw, and I've not really ever had to do anything to it, other than keep gas and oil in it, and the chain sharp. 5 x CHAINSAW CHAIN SPROCKET RIM 3/8 7 tooth Small for Stihl Husqvarna & MORE AU $33.29 Free postage or Best Offer 2 x STIHL Genuine Rim Sprocket 3/8 x 7T for MS362, MS381, MS441 # 0000 642 1223 AU $24.00 Free postage STIHL Genuine MS362, MS362C, MS462C Clutch Cover / Sprocket Cover #1140 640 1703 AU $76.16 AU $10.00 postage 21 watching .cardIcon-icon[data-test="credit-card-icon-diners-club"] { display:none !important;} //-->,