In stock. I run 7 on all my firewood saws, even the big ones. 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" maybe try and tune the chain for the 7 pin. Please. Does not include bearing, must order Bearing # 37325 separately. Is the rim sprocket better than the spur sprocket. The mountain pine beetle epidemic required fast learning in the art of tree felling and subsequent forestry practices to direct the forest's regrowth. You can have as many as you wish Children's Toy's, Chainsaw Models & Books etc. Unless you run a 12" bar run a 7 pin. These are good quality sprockets. Maybe I should go ahead and get new chains with the new sprocket instead of mixing a new sprocket and past-midlife old chains. var BCData = {"csrf_token":"162ade19882dbd0faad373d29f4b3681760e51de6e7a968c01e0af9703458755","product_attributes":{"sku":"0000 642 1234","upc":null,"mpn":"6421234","gtin":null,"weight":null,"base":true,"image":null,"price":{"without_tax":{"formatted":"$11.99","value":11.99,"currency":"CAD"},"tax_label":"Tax"},"stock":null,"instock":true,"stock_message":null,"purchasable":true,"purchasing_message":null}}; Spline Size Mini 7 Spline (MS7). The rim gets most of the sprocket wear, and by being replaceable, it extends the overall life and value of the sprocket system. I mostly cut hardwood. Increasing the diameter/speed of the drive sprocket will reduce its applied power. Over 200+ free JavaScripts here! Yeah, itll pick up chain speed, but loose torque. Hand Filing Chains - Switch to smaller diameter file as the chain tooth is getting narrower? More oiling for chain speed and generally faster cutting. Sell on Amazon Chainsaw Sprocket 7 Tooth 3/8 Pitch Fits Stihl 040 041 AV 030 AV (1680) 031 AV Brand: expert store 3 ratings $2535 Buy it with + + Total price: $50.13 Add all three to Cart These items are shipped from and sold by different sellers. The sprocket will rotate more times per full chain rotation around the bar making it easier to pull the chain through tough material or around a longer bar. Just try both 7- and 8-pin rims - what works best depend on a lot of factors. It depends on what pitch your running, .325, 3/8 & .404 have different chain speeds in 7pin. this particular stihl shop is the closest one to my home, but is still about 15 miles out of the way. A 7t will have more torque for longer bars and be able to lean on it more. The repair guy was a little hesitant at first about the 8 tooth just because he said he'd prefer putting the original equipment on it all else being equal. Ask for details. Generally, one step down in tooth count (7 to a 6) or (8 to 7). New old stock from closed out dealer. /* var imagelinks2=new Array() Bailey's is committed to keeping our site compliant with the American with Disabilities Act. Make sure to size your components to work together to minimize wear as well as the risk of a chain derailment or injury. What's the advantage of each? Think first gear on a bicycle. Bore 13mm (0.5118) Bearing 10mm x 13mm x 10mm. 12-13 years, actually. .cardIcon-icon[data-test="credit-card-icon-discover"] { display:none !important;} 1*7 Tooth Sprocket. More of an art than a science, gearing essentially changes the drive sprocket diameter by adding or removing teeth. But I bet it'll be fine. myimages[5]="../../../images/top-banner/cookie-mizer.jpg" myimages2[3]="../../../images/top-banner/behindtheforum.jpg" var myimages=new Array() I'm not a heavy user, but I am in a situation with several (~8) acres between myself, my brother and parents, with plenty of hardwoods around so something is in need of cutting perdiodically (died from stress, wind/storm blew it over, lighting struck, old age). 7 TOOTH .404 AND 6 TOOTH 1/2 DRUMS. You must log in or register to reply here. Baileys has it part#0rf 34162x 16 bucks. The larger diameter increases the outer speed of the sprocket increasing the chain speed. 10, Mo is bedder! Thanks, makes sense. Feature 2-Stroke. JavaScript is disabled. All rights reserved. Same thing with rim sprockets. This rim also has wear depth indicators which tell you when to replace your rim. For A/R & A/P office admin inquires use walkerssaw@shaw.ca, 2023 Walker's Saw Shop LTD. } Can actually outrun the nose in deep bores. xmlHttp.open('POST', 'https://bes.gcp.data.bigcommerce.com/nobot'); Dont forget to adjust the oiler. Package Include: 1pc Rim Sprocket, Free Ground Shipping The sprocket on the tip are not like super worn as far as I can tell - there is some roundness to the points. I am going to try an 8 pin. : Herr 193-A7, Stens 085-269 This according to them in order to speed up chain speed. 10% OFF. myimages[4]="../../../images/top-banner/ez50-banner.jpg" . //-->,