Motorcycle Engine Bearings
![Motorcycle Engine Bearing](https://ic.motorcycleid.com/motorcycle/pages/engine-bearings/motorcycle-engine-bearings_collage_0.jpg)
- Wiseco®Top End Bearing (B1004)Top End Bearing by Wiseco®. Length: 27.8mm. Inner Diameter: 20mm. Outer Diameter: 25mm. 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...Guaranteed workmanship and material qualityPeerless quality and superior consistency$20.10
- Wiseco®Top End Bearing (B1016)Top End Bearing by Wiseco®. Length: 19.5mm. Inner Diameter: 16mm. Outer Diameter: 20mm.Guaranteed workmanship and material qualityPeerless quality and superior consistency$20.10
- Wiseco®Top End Bearing (B1082)Top End Bearing by Wiseco®.Guaranteed workmanship and material qualityPeerless quality and superior consistency$20.10
- Wiseco®Top End Bearing (B1042)Top End Bearing by Wiseco®. 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...Crafted to deliver unbeatable levels of qualityHigh grade materials for exceptional performance$20.10
- Wiseco®Top End Bearing (B1037)Top End Bearing by Wiseco®. Length: 19.8mm. Inner Diameter: 18mm. Outer Diameter: 22mm. 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...Guaranteed workmanship and material qualityPeerless quality and superior consistency$20.10
- Wiseco®Top End Bearing (B1041)Top End Bearing by Wiseco®. Length: 14.5mm. Inner Diameter: 12mm. Outer Diameter: 15mm. 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...Guaranteed workmanship and material qualityPeerless quality and superior consistency$20.10
- Wiseco®Top End Bearing (B1018)Top End Bearing by Wiseco®. Length: 19.8mm. Inner Diameter: 14mm. Outer Diameter: 18mm.Guaranteed workmanship and material qualityPeerless quality and superior consistency$20.10
- Wiseco®Top End Bearing (B1000)Top End Bearing by Wiseco®. Length: 15.8mm. Inner Diameter: 12mm. Outer Diameter: 16 mm. 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...Guaranteed workmanship and material qualityPeerless quality and superior consistency$20.10
- Wiseco®Top End Bearing (B1038)Top End Bearing by Wiseco®. Length: 17.8mm. Inner Diameter: 15mm. Outer Diameter: 20mm.Guaranteed workmanship and material qualityPeerless quality and superior consistency$20.10
- Wiseco®Top End Bearing (B1043)Top End Bearing by Wiseco®. Length: 14.8mm. Inner Diameter: 12mm. Outer Diameter: 16mm. 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...Guaranteed workmanship and material qualityPeerless quality and superior consistency$20.10
- Wiseco®Top End Bearing (B1022)Top End Bearing by Wiseco®. Length: 23.5mm. Inner Diameter: 18mm. Outer Diameter: 22mm. 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...Guaranteed workmanship and material qualityPeerless quality and superior consistency$20.10
- Wiseco®Top End Bearing (B1013)Top End Bearing by Wiseco®. Length: 19.8mm. Inner Diameter: 15mm. Outer Diameter: 19mm. 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...Guaranteed workmanship and material qualityPeerless quality and superior consistency$20.10
- Hot Rods®Crankshaft Plain Bearing (CRBPLKIT-4W)Crankshaft 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$27.85
- Hot Rods®Crankshaft Plain Bearing (CRBPLKIT-6Y)Crankshaft 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$26.96
- Hot Rods®Crankshaft Plain Bearing (CRBPLKIT-6G)Crankshaft 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$26.96
- Hot Rods®Crankshaft Plain Bearing (CRBPLKIT-4Y)Crankshaft 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$27.85
- Hot Rods®Crankshaft Plain Bearing (CRBPLKIT-4R)Crankshaft 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
- Hot Rods®Crankshaft Plain Bearing (CRBPLKIT-4G)Crankshaft 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$27.86
- Hot Rods®Crankshaft Plain Bearing (CRBPLKIT-4B)Crankshaft 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$27.86
- Hot Rods®Crankshaft Plain Bearing (CRBPLKIT-6B)Crankshaft 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$26.96
- Wiseco®Top End Bearing (B1081)Top End Bearing by Wiseco®. Length: 23.8mm. Inner Diameter: 21mm. Outer Diameter: 25mm. 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...Guaranteed workmanship and material qualityPeerless quality and superior consistency$20.10
- All Balls®Crank Shaft Bearing Kit (25-4047)Crank Shaft Bearing Kit 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...Performance wheel bearing solutions for your bikeUsed by pro racing pilots and amateur bikers around the world$20.73
- All Balls®Crankshaft Bearing and Seal Kit (24-1128)Crankshaft Bearing and Seal Kit by All Balls®.Used by pro racing pilots and amateur bikers around the worldBlend of astounding operation and unmatched reliability$88.96
- Andrews Products®Inner Case Needle Bearings (388900)Inner Case Needle Bearings by Andrews Products®. Bearings are necessary to complete the installation of gear drive camshafts. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art...Precise engineering provides great longevityPeak accuracy and effectiveness$19.60
- Eastern Performance®Left Side Washers Case Bushing (A-24779-40)Left Side Washers Case Bushing by Eastern Performance®. Quantity: 5 Pieces. Eastern Performance® has a huge selection of the best motorcycle parts & accessories for your Harley Davidson Touring, Softail, Dyna, Sportster, and V-Rod...Crafted with precision using leading innovationsDesigned specifically for Harley-Davidson motorcycles$18.94
- Eastern Performance®Pinion Shaft Case Bushing (A-24601-81)Pinion Shaft Case Bushing by Eastern Performance®. Quantity: 1 Piece. Size: + 0.025". Right Side. 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$62.19
- Eastern Performance®Spacer Sprocket Shaft (A-24038-03)Spacer Sprocket Shaft by Eastern Performance®. Quantity: 10 Pieces. Size: 1.33". Eastern Performance® has a huge selection of the best motorcycle parts & accessories for your Harley Davidson Touring, Softail, Dyna, Sportster, and V-Rod...Crafted with precision using leading innovationsDesigned specifically for Harley-Davidson motorcycles$18.94
- Eastern Performance®Wrist Pin Bushing (A-24331-36)Wrist Pin Bushing by Eastern Performance®. Quantity: 1 Pair. Replacement connecting rod wrist pin bushings. Eastern Performance® has a huge selection of the best motorcycle parts & accessories for your Harley Davidson Touring, Softail,...Crafted with precision using leading innovationsDesigned specifically for Harley-Davidson motorcycles$30.15
- Eastern Performance®Wrist Pin Bushing (A-24316-99)Wrist Pin Bushing by Eastern Performance®. Quantity: 1 Pair. Replacement connecting rod wrist pin bushings. Eastern Performance® has a huge selection of the best motorcycle parts & accessories for your Harley Davidson Touring, Softail,...Crafted with precision using leading innovationsDesigned specifically for Harley-Davidson motorcycles$30.15
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.
Featured Brands
Related Categories
Complete Engines
Timing Gears & Chains
Valves & Valve Train Parts
Pistons, Rings & Connecting Rods
Camshafts
Engine Blocks & Parts
Cylinder Heads
Push Rods & Lifter Blocks
Crankshafts
Cylinders
Turbochargers & Superchargers
Cam Chain & Belt Tensioners
Oil Filters
Oil Pumps
Timing Pulleys & Belts
Oil Cooling Systems
Oil Pans, Dipsticks & Drain Plugs
Oil Lines
Auxiliary Belts
Oil Tanks
Engine Case Covers
Engine Rebuild Kits
Engine Vents
Engine Sensors & Switches
Engine Gaskets & Seals
Engine Mounts & Hardware
Engine Oils & Additives
Chemicals
Engine Tools