Dominant Ceramic Hybrid 6203 Main Bearings
We had these 6203 ceramic bearings made specifically for us, and we are excited to get them out to you.
Your build is never complete unless you know what's inside the case. The bearings and the piston take the majority of the abuse in your saw. And, resisting heat build up cut after cut is a saw's fountain of youth.
Hybrid ceramic mains blend the best of both worlds, optimum durability and unequivocal performance. We spec these bearings with chrome steel outer races because we know the outers take the brunt of the force when you put them in. The balls, however, are Si3N4 ceramic. Ceramic balls are 70% smoother than steel, spec'd to ABEC-5 tolerance, and good for rpm well past the mid 30's. This IS the most badass chainsaw bearing on the market.
Ceramic balls, when compared to chrome steel balls:
- 60%+ lighter
- 50%+ stiffer
- 70%+ smoother
- More than 100% better rolling contact fatigue life
- Much, much, harder than steel balls
Stainless steel bearing retainers round out the package. Overall friction is more than 10% less than an all-steel bearing of the highest quality. On our 6202 hybrid bearings, we've seen an increase in 500 free rpm on a Husky 357. This translates into speed in the wood, under load.
This the known list of what these bearings will fit. "Credited" to Scott, the founder of www.chainsawr.com
If you don't see your bearing listed in the drop-down menu, just select a saw of similar displacement. We are mainly just trying to keep track of what saws these are going in. Some of these saws take 1 and some take two of these 6203. Please be responsible and make sure you order the right number for your saw.
Fits:
Stihl
MS660 non-drive side (Use our SPTO-L for the PTO side)
038 clutch side
064 / 066 Flywheel side
084 / 088 Flywheel side
029 / MS290 Both Sides (order the set)
HUSQVARNA
165 BT (US Only) (2005-08) Crankcase
181 (1982-05) Crankshaft
181 (1983-06) Crankshaft Assembly
181 (1983-12) Crankshaft Assembly
181 (1984-02) Crankshaft Assembly
181 (1985-03) Crankshaft Assembly
2100 (1981-10) Crankshaft Assembly
2100 (1982-11) Crankshaft Assembly
2100 (1983-11) Crankshaft Assembly
2100 (1984-04) Crankshaft Assembly
2100 (1985-08) Crankshaft Assembly
2101 (1987-04) Crankshaft Assembly
2101 (1988-03) Crankshaft
2101 (1989-02) Crankshaft Assembly
2101 (1990-06) Crankshaft
240 (2001-01) Gear Head Shaft Tube
240 (2002-08) Gear Head
240 EPA (2002-08) Gear Head
245 (2001-01) Gear Head Shaft Tube
245 (2002-08) Gear Head
245 EPA (2002-08) Gear Head
281 (1986-01) Crankshaft
281 (1986-12) Crankshaft
281 (1988-01) Crankshaft Assembly
281 (1988-08) Crankshaft Assembly
281 (1989-02) Crankshaft Assembly
281 (1989-02) Muffler Complete
281 (1990-01) Crankshaft
281 (1991-04) Crankshaft Assembly
281 (1993-09) Crankshaft
281 (1997-12) Crankshaft Assembly
281 (2000-02) Crankshaft
281 (2001-10) Crankshaft
285 (1981-12) Crankshaft Assembly
288 (1988-01) Crankshaft Assembly
288 (1988-08) Crankshaft Assembly
288 (1989-02) Crankshaft Assembly
288 (1989-02) Muffler Complete
288 (1990-01) Crankshaft
288 (1991-04) Crankshaft Assembly
288 (1993-09) Crankshaft
288 (1997-12) Crankshaft Assembly
288 (2000-02) Crankshaft
288 (2001-10) Crankshaft
288 EPA (1997-12) Crankshaft Assembly
288 EPA (2000-02) Crankshaft
288 EPA (2001-10) Crankshaft
298 (1986-04) Crankshaft
298 (1987-01) Crankshaft
298 (1987-06) Crankshaft
3120 (1988-05) Crankshaft Assembly
3120 (1989-02) Crankshaft Assembly
3120 (1990-01) Crankshaft
3120 (1994-06) Crankshaft
3120 (1996-01) Crankshaft
3120 (1998-03) Crankshaft Assembly
3120 (2000-02) Crankshaft
3120 (2001-09) Crankshaft
3120 EPA (1998-03) Crankshaft Assembly
3120 EPA (2000-02) Crankshaft
3120 K (1999-04) Crankshaft Assembly
3120 K (2000-02) Crankshaft
3120 K (2001-06) Crankshaft
3120 K (2003-10) Crankcase
3120 K (2003-10) Crankshaft
3120 K (2005-05) Crankcase
3120 K (2005-05) Crankshaft
3120 K EPA (2000-02) Crankshaft
3120 K EPA (2003-10) Crankcase
3120 K EPA (2003-10) Crankshaft
3120 K EPA (2005-05) Crankcase
3120 K EPA (2005-05) Crankshaft
3120 XP (2003-11) Crankshaft
3120 XP EPA (2003-11) Crankshaft
385 and 390 non-pto side, all years
394 395 395XP both sides all years
K 1250 (2007-01) Crankcase Gasket Kit and Cutter Arm
K 1250 (2007-01) Crankshaft Assy
K 1250 Active (2008-01) Crankcase / Cutter Arm / Air Nozzle and Gasket Kit
K 1250 Active (2008-01) Crankshaft Assembly
K 1250 Rail (2007-01) Crankcase Gasket Kit and Cutter Arm
K 1250 Rail (2007-01) Crankshaft Assy
K 1250 Rail (2008-01) Crankcase / Cutter Arm / Air Nozzle and Gasket Kit
K 1250 Rail (2008-01) Crankshaft Assembly
K 185 (1987-01) Crankcase
K 185 (1987-01) Crankshaft
K 960 (2007-07) Crankcase Assy and Gasket Kit
K 960 (2007-07) Crankshaft Assy
K 960 (2008-12) Crankcase Assy
K 960 (2008-12) Crankshaft Assy
Husqvarna: 240 R, 240 F, 245, 245 R, 245 RX, 245 EPA, 240 R EPA, 245 R EPA, 240 EPA, 240, 245 RX EPA, 165 BT, 385 XP EPA, 288 XP, 385 XP, 390 EPA, 288 EPA, 395 XP EPA, 390XP from 2016-09, 390, 395 XP, 385, 281 XP, 395XP, 390XP from 2016-03, 390XP from 2016-10, 288, 281, 385 EPA
Jonsered: GR41, GR41 from 2014-12, RS44, GR50, RS44 from 2014-12, 2095, CS2186, CS2188 from 2016-10, CS2188 from 2011-05, CS2188 EPA, CS2188
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