Motorcycle Engine Bearings
- Outlaw Racing®Wrist Pin Bearing (OR09B0821)Wrist Pin Bearing by Outlaw Racing®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great quality...Expertly crafted from premium materialsDesigned to match rigorous quality standards$10.14
- Outlaw Racing®Wrist Pin Bearing (OR09B0381)Wrist Pin Bearing by Outlaw Racing®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great quality...Expertly crafted from premium materialsDesigned to match rigorous quality standards$10.14
- Outlaw Racing®Wrist Pin Bearing (OR095021)Wrist Pin Bearing by Outlaw Racing®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great quality...Expertly crafted from premium materialsDesigned to match rigorous quality standards$8.86
- ProX®Crankshaft Bearing and Seal Kit (23.CBS64003)Crankshaft Bearing and Seal Kit by ProX®. ProX crankshaft bearings and seals are manufactured at leading OEM factories, mainly in Japan. All bearings and seals are made to exact OEM specifications, to ensure maximum quality and...Carefully developed for the highest level of qualityReady to serve reliably for years to come$132.17
- ProX®Crankshaft Bearing and Seal Kit (23.CBS63004)Crankshaft Bearing and Seal Kit by ProX®. ProX crankshaft bearings and seals are manufactured at leading OEM factories, mainly in Japan. All bearings and seals are made to exact OEM specifications, to ensure maximum quality and...Carefully developed for the highest level of qualityReady to serve reliably for years to come$110.23
- ProX®Crankshaft Bearing and Seal Kit (23.CBS42088)Crankshaft Bearing and Seal Kit by ProX®. ProX crankshaft bearings and seals are manufactured at leading OEM factories, mainly in Japan. All bearings and seals are made to exact OEM specifications, to ensure maximum quality and...Carefully developed for the highest level of qualityReady to serve reliably for years to come$54.99
- ProX®Crankshaft Bearing and Seal Kit (23.CBS32099)Crankshaft Bearing and Seal Kit by ProX®. ProX crankshaft bearings and seals are manufactured at leading OEM factories, mainly in Japan. All bearings and seals are made to exact OEM specifications, to ensure maximum quality and...Carefully developed for the highest level of qualityReady to serve reliably for years to come$60.95
- ProX®Crankshaft Bearing and Seal Kit (23.CBS23001)Crankshaft Bearing and Seal Kit by ProX®. ProX crankshaft bearings and seals are manufactured at leading OEM factories, mainly in Japan. All bearings and seals are made to exact OEM specifications, to ensure maximum quality and...Carefully developed for the highest level of qualityReady to serve reliably for years to come$61.43
- ProX®Crankshaft Bearing and Seal Kit (23.CBS22005)Crankshaft Bearing and Seal Kit by ProX®. ProX crankshaft bearings and seals are manufactured at leading OEM factories, mainly in Japan. All bearings and seals are made to exact OEM specifications, to ensure maximum quality and...Carefully developed for the highest level of qualityReady to serve reliably for years to come$53.43
- ProX®Crankshaft Bearing and Seal Kit (23.CBS21093)Crankshaft Bearing and Seal Kit by ProX®. ProX crankshaft bearings and seals are manufactured at leading OEM factories, mainly in Japan. All bearings and seals are made to exact OEM specifications, to ensure maximum quality and...Carefully developed for the highest level of qualityReady to serve reliably for years to come$29.43
- ProX®Crankshaft Bearing and Seal Kit (23.CBS62001)Crankshaft Bearing and Seal Kit by ProX®. ProX crankshaft bearings and seals are manufactured at leading OEM factories, mainly in Japan. All bearings and seals are made to exact OEM specifications, to ensure maximum quality and...Carefully developed for the highest level of qualityReady to serve reliably for years to come$96.11
- ProX®Crankshaft Bearing and Seal Kit (23.CBS61009)Crankshaft Bearing and Seal Kit by ProX®. ProX crankshaft bearings and seals are manufactured at leading OEM factories, mainly in Japan. All bearings and seals are made to exact OEM specifications, to ensure maximum quality and...Carefully developed for the highest level of qualityReady to serve reliably for years to come$42.13
- ProX®Crankshaft Bearing and Seal Kit (23.CBS61003)Crankshaft Bearing and Seal Kit by ProX®. ProX crankshaft bearings and seals are manufactured at leading OEM factories, mainly in Japan. All bearings and seals are made to exact OEM specifications, to ensure maximum quality and...Carefully developed for the highest level of qualityReady to serve reliably for years to come$84.58
- ProX®Crankshaft Bearing and Seal Kit (23.CBS41088)Crankshaft Bearing and Seal Kit by ProX®. ProX crankshaft bearings and seals are manufactured at leading OEM factories, mainly in Japan. All bearings and seals are made to exact OEM specifications, to ensure maximum quality and...Carefully developed for the highest level of qualityReady to serve reliably for years to come$30.99
- ProX®Crankshaft Bearing and Seal Kit (23.CBS14006)Crankshaft Bearing and Seal Kit by ProX®. ProX crankshaft bearings and seals are manufactured at leading OEM factories, mainly in Japan. All bearings and seals are made to exact OEM specifications, to ensure maximum quality and...Carefully developed for the highest level of qualityReady to serve reliably for years to come$98.81
- ProX®Crankshaft Bearing and Seal Kit (23.CBS13006)Crankshaft Bearing and Seal Kit by ProX®. ProX crankshaft bearings and seals are manufactured at leading OEM factories, mainly in Japan. All bearings and seals are made to exact OEM specifications, to ensure maximum quality and...Carefully developed for the highest level of qualityReady to serve reliably for years to come$85.78
- ProX®Crankshaft Bearing and Seal Kit (23.CBS24098)Crankshaft Bearing and Seal Kit by ProX®. ProX crankshaft bearings and seals are manufactured at leading OEM factories, mainly in Japan. All bearings and seals are made to exact OEM specifications, to ensure maximum quality and...Carefully developed for the highest level of qualityReady to serve reliably for years to come$89.02
- ProX®Crankshaft Bearing and Seal Kit (23.CBS24001)Crankshaft Bearing and Seal Kit by ProX®. ProX crankshaft bearings and seals are manufactured at leading OEM factories, mainly in Japan. All bearings and seals are made to exact OEM specifications, to ensure maximum quality and...Carefully developed for the highest level of qualityReady to serve reliably for years to come$97.91
- ProX®Crankshaft Bearing and Seal Kit (23.CBS13092)Crankshaft Bearing and Seal Kit by ProX®. ProX crankshaft bearings and seals are manufactured at leading OEM factories, mainly in Japan. All bearings and seals are made to exact OEM specifications, to ensure maximum quality and...Carefully developed for the highest level of qualityReady to serve reliably for years to come$58.33
- ProX®Crankshaft Bearing and Seal Kit (23.CBS13084)Crankshaft Bearing and Seal Kit by ProX®. ProX crankshaft bearings and seals are manufactured at leading OEM factories, mainly in Japan. All bearings and seals are made to exact OEM specifications, to ensure maximum quality and...Carefully developed for the highest level of qualityReady to serve reliably for years to come$55.83
- ProX®Crankshaft Bearing and Seal Kit (23.CBS12086)Crankshaft Bearing and Seal Kit by ProX®. ProX crankshaft bearings and seals are manufactured at leading OEM factories, mainly in Japan. All bearings and seals are made to exact OEM specifications, to ensure maximum quality and...Carefully developed for the highest level of qualityReady to serve reliably for years to come$48.33
- S&S Cycle®Camshaft Needle Bearing (31-4199-S)Camshaft Needle Bearing by S&S Cycle®. Quantity: 1 Piece. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured...Precise engineering ensures the latest in qualityExpertly manufactured from highly reliable materials$20.95
- S&S Cycle®Camshaft Needle Bearing (31-4009)Camshaft Needle Bearing by S&S Cycle®. Assembly. Assembly. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured...Precise engineering ensures the latest in qualityExpertly manufactured from highly reliable materials$15.95
- S&S Cycle®Pinion Shaft Bearing (31-4085)Pinion Shaft Bearing by S&S Cycle®. Quantity: 1 Piece. Size: + 0.03". This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship....Precise engineering ensures the latest in qualityExpertly manufactured from highly reliable materials$80.96
- Twin Power®Front Motor Mount Bushing Set (032568)Front Motor Mount Bushing Set by Twin Power®. These Heavy-Duty Motor Mount Bushings Replace The Stock Isolaters. These Heavy-Duty Motor Mount Bushings Replace The Stock Isolaters. This top-grade product is expertly made in compliance...Crafted to deliver unbeatable levels of qualityHigh grade materials for exceptional performance$23.35
- Twin Power®Rear Motor Mount Bushing Set (032567)Rear Motor Mount Bushing Set by Twin Power®. These Heavy-Duty Motor Mount Bushings Replace The Stock Isolaters. These Heavy-Duty Motor Mount Bushings Replace The Stock Isolaters. This top-grade product is expertly made in compliance...Crafted to deliver unbeatable levels of qualityHigh grade materials for exceptional performance$23.29
- WSM®Upper Rod Bearing (010-110)Upper Rod Bearing by WSM®. Bore Size: 76 mm. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...Expertly crafted from the highest grade materialsMade with experience and proven by quality$9.14
- WSM®Wrist Pin Needles (010-120-29)Wrist Pin Needles (010-120-29) by WSM®. What can be more fun and rewarding than boating on the open waters? This is an excellent solution for your boating needs. This product is great for use in all marine applications. It will satisfy...High quality at an affordable priceExpertly made from premium materials$5.81
- Wiseco®Top End Bearing (B1015)Top End Bearing by Wiseco®. Length: 14.2mm. Inner Diameter: 12mm. Outer Diameter: 17mm.Guaranteed workmanship and material qualityPeerless quality and superior consistency$20.10
- Wiseco®Top End Bearing (B1021)Top End Bearing by Wiseco®. Length: 22.5mm. Inner Diameter: 16mm. Outer Diameter: 20mm.Guaranteed workmanship and material qualityPeerless quality and superior consistency$20.10
Engine bearings are responsible for supporting the crankshaft, camshafts, and some other rotating parts while reducing friction between them. There are three main kinds of bearings found in motorcycles these days: ball, roller, and plain bearings. Actually, the last type is most commonly used in modern motors. Plain or journal bearings work thanks to a thin oil film that is formed between a rotating shaft and bearing. The thickness of this film is measured in microns, but oil viscosity and pressure make it strong enough to avoid direct contact between metal surfaces.
As for the material used, journal bearings may feature two or even three layers of metal. The inner layer is a special soft coating that allows for avoiding scratches on a solid shaft caused by small particles of debris. In general, plain bearings can last incredibly long and withstand very high revs, given that oil quality and pressure are high enough. In the meantime, roller or ball engine bearings are still successfully used in the legendary Big Twins by Harley-Davidson and some other motors, and there are a couple of reasons for that.
First, the constructions employing such bearings are less vulnerable in case of low oil pressure or viscosity. Second, they are cheaper to produce. Less material is needed to support a bearing, and it doesn't need a special oil passage that could potentially get clogged with dirt and affect lubrication. Motorcycle engine bearings are selected taking into account numerous factors, and over time, it gets clear whether the choice was right. For instance, in the late 1990s, there was a problem in Twin Cam engines related to the failure of the rear cam ball bearing, and it was resolved by the installation of the tapered roller one that could better withstand high loads. In our online store, you will find an assortment of quality engine bearings for your bike.
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- Complete Engines
- Timing Gears & Chains
- Valves & Valve Train Parts
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- Camshafts
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