Motorcycle Engine Bearings
- Hot Rods®Crankshaft Plain BearingCrankshaft Plain Bearing by Hot Rods®. 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...Stringently tested with the highest quality standardsBuilt for long-lasting dependability and unmatched quality$23.36 - $27.86
- Andrews Products®Camshaft Ball Bearings (388015)Camshaft Ball Bearings by Andrews Products®. Replacement Cam Bearing, and needle bearings. Bearings are necessary to complete the installation of gear drive camshafts. Cam cover oil ports must be blocked with cover plates (screws...Precise engineering provides great longevityPeak accuracy and effectiveness$19.60
- All Balls®Countershaft Washer (25-6007)Countershaft Washer by All Balls®. When it comes to quality, All Balls® knows no compromises. All the products made by this stringent quality control conditions. The latest manufacturing methods coupled with the use of the...Used by pro racing pilots and amateur bikers around the worldBlend of astounding operation and unmatched reliability$8.42
- Eastern Performance®Rocker Arm Bushings (A-17428-57)Rocker Arm Bushings by Eastern Performance®. Quantity: 4 Pieces. Direct O.E.M. Replacement. Eastern Performance® has a huge selection of the best motorcycle parts & accessories for your Harley Davidson Touring, Softail, Dyna,...Crafted with precision using leading innovationsDesigned specifically for Harley-Davidson motorcycles$23.03
- Namura®Top-End Needle Bearing (09-B022-1)Top-End Needle Bearing by Namura®. Length: 23.5 mm. Inner Diameter: 18 mm. Outer Diameter: 22 mm. Quality materials mean increased longevity and continued performance. A critical aspect of any rebuild, gaskets are often given little...Carefully developed for the highest level of qualityUnsurpassed in functionality and reliability$10.08
- S&S Cycle®Rod Bearing Assembly (34-4010)Rod Bearing Assembly by S&S Cycle®. 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 industry-leading...Precise engineering ensures the latest in qualityExpertly manufactured from highly reliable materials$89.96
- S&S Cycle®Right Side Inner Main Bearing Race (340-0077)Right Side Inner Main Bearing Race by S&S Cycle®. 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...Precise engineering ensures the latest in qualityExpertly manufactured from highly reliable materials$44.96
- Colony®Sprocket Shaft Bearing Retainer (7410-1)Sprocket Shaft Bearing Retainer by Colony®. Bearing retainer with lip seal will "dry up" the sprocket shaf. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and...Designed specifically for Harley-Davidson motorcyclesExpected to provide the finest quality and value$50.92
- Eastern Performance®Pinion Shaft Bearing (A-24648-77A)Pinion Shaft Bearing by Eastern Performance®. Quantity: 1 Piece. Eastern Performance® has a huge selection of the best motorcycle parts & accessories for your Harley Davidson Touring, Softail, Dyna, Sportster, and V-Rod models. With...Crafted with precision using leading innovationsDesigned specifically for Harley-Davidson motorcycles$48.25
- Eastern Performance®Sprocket Shaft Spacer (A-24002-70)Sprocket Shaft Spacer by Eastern Performance®. Quantity: 1 Piece. Made in USA. Hardened steel. Eastern Performance® has a huge selection of the best motorcycle parts & accessories for your Harley Davidson Touring, Softail, Dyna,...Crafted with precision using leading innovationsDesigned specifically for Harley-Davidson motorcycles$21.25
- S&S Cycle®Outer Camshaft Bearing (31-4081)Outer Camshaft Bearing by S&S Cycle®. 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...Precise engineering ensures the latest in qualityExpertly manufactured from highly reliable materials$14.95
- All Balls®Countershaft Washer (25-6001)Countershaft Washer by All Balls®. When it comes to quality, All Balls® knows no compromises. All the products made by this stringent quality control conditions. The latest manufacturing methods coupled with the use of the...Used by pro racing pilots and amateur bikers around the worldBlend of astounding operation and unmatched reliability$32.00
- All Balls®Countershaft Washer (25-6009)Countershaft Washer by All Balls®. 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 industry-leading...Used by pro racing pilots and amateur bikers around the worldBlend of astounding operation and unmatched reliability$14.27
- All Balls®Countershaft Washer (25-6016)Countershaft Washer by All Balls®. 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 industry-leading...Used by pro racing pilots and amateur bikers around the worldBlend of astounding operation and unmatched reliability$27.86
- All Balls®Countershaft Washer (25-6008)Countershaft Washer by All Balls®. 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 industry-leading...Used by pro racing pilots and amateur bikers around the worldBlend of astounding operation and unmatched reliability$12.36
- All Balls®Countershaft Washer (25-6013)Countershaft Washer by All Balls®. 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 industry-leading...Used by pro racing pilots and amateur bikers around the worldBlend of astounding operation and unmatched reliability$27.30
- All Balls®Countershaft Washer (25-6015)Countershaft Washer by All Balls®. 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 industry-leading...Used by pro racing pilots and amateur bikers around the worldBlend of astounding operation and unmatched reliability$23.14
- All Balls®Countershaft Washer (25-6012)Countershaft Washer by All Balls®. 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 industry-leading...Used by pro racing pilots and amateur bikers around the worldBlend of astounding operation and unmatched reliability$21.33
- All Balls®Countershaft Washer (25-6006)Countershaft Washer by All Balls®. 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 industry-leading...Used by pro racing pilots and amateur bikers around the worldBlend of astounding operation and unmatched reliability$25.57
- All Balls®Countershaft Washer (25-6005)Countershaft Washer by All Balls®. 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 industry-leading...Used by pro racing pilots and amateur bikers around the worldBlend of astounding operation and unmatched reliability$28.95
- All Balls®Countershaft Washer (25-6017)Countershaft Washer by All Balls®. 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 industry-leading...Used by pro racing pilots and amateur bikers around the worldBlend of astounding operation and unmatched reliability$35.72
- All Balls®Countershaft Washer (25-6002)Countershaft Washer by All Balls®. When it comes to quality, All Balls® knows no compromises. All the products made by this stringent quality control conditions. The latest manufacturing methods coupled with the use of the...Used by pro racing pilots and amateur bikers around the worldBlend of astounding operation and unmatched reliability$19.50
- All Balls®Crank Bearing and Seal Kit (24-1123)Crank Bearing and Seal Kit by All Balls®.$71.96
- All Balls®Crankshaft Bearing (24-1031)Crankshaft Bearing by All Balls®. Feature Koyo and Nachi Bearings (precision Japanese crank bearings). Reduce crank pin wear with our crank seals. Designed with a carbon/fluorocarbon sealing lip to reduce dry start friction.Used by pro racing pilots and amateur bikers around the worldBlend of astounding operation and unmatched reliability$30.21
- All Balls®Crankshaft Bearing Kit (24-1109)Crankshaft Bearing Kit by All Balls®. When it comes to quality, All Balls® knows no compromises. All the products made by this stringent quality control conditions. The latest manufacturing methods coupled with the use of the...Used by pro racing pilots and amateur bikers around the worldBlend of astounding operation and unmatched reliability$75.07
- All Balls®Crankshaft Bearing and Seal Kit (24-1014)Crankshaft Bearing and Seal Kit by All Balls®. Feature Koyo and Nachi Bearings (precision Japanese crank bearings). Reduce crank pin wear with our crank seals. Designed with a carbon/fluorocarbon sealing lip to reduce dry start friction.Used by pro racing pilots and amateur bikers around the worldBlend of astounding operation and unmatched reliability$56.78
- All Balls®Crankshaft Bearing and Seal Kit (24-1045)Crankshaft Bearing and Seal Kit by All Balls®. Feature Koyo and Nachi Bearings (precision Japanese crank bearings). Reduce crank pin wear with our crank seals. Designed with a carbon/fluorocarbon sealing lip to reduce dry start friction.Used by pro racing pilots and amateur bikers around the worldBlend of astounding operation and unmatched reliability$69.28
- All Balls®Crankshaft Bearing and Seal Kit (24-1028)Crankshaft Bearing and Seal Kit by All Balls®. Feature Koyo and Nachi Bearings (precision Japanese crank bearings). Reduce crank pin wear with our crank seals. Designed with a carbon/fluorocarbon sealing lip to reduce dry start friction.Used by pro racing pilots and amateur bikers around the worldBlend of astounding operation and unmatched reliability$72.72
- All Balls®Crankshaft Bearing and Seal Kit (24-1019)Crankshaft Bearing and Seal Kit by All Balls®. Feature Koyo and Nachi Bearings (precision Japanese crank bearings). Reduce crank pin wear with our crank seals. Designed with a carbon/fluorocarbon sealing lip to reduce dry start friction.Used by pro racing pilots and amateur bikers around the worldBlend of astounding operation and unmatched reliability$76.59
- All Balls®Crankshaft Bearing and Seal Kit (24-1003)Crankshaft Bearing and Seal Kit by All Balls®. Feature Koyo and Nachi Bearings (precision Japanese crank bearings). Reduce crank pin wear with our crank seals. Designed with a carbon/fluorocarbon sealing lip to reduce dry start friction.Used by pro racing pilots and amateur bikers around the worldBlend of astounding operation and unmatched reliability$62.67
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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