Motocross/Dirt Bike Engine Bearings

Motorcycle Engine Bearing
  • All Balls® - Crankshaft Bearing and Seal Kit
    All Balls®Crankshaft Bearing and Seal Kit (24-1006)
    0
    # mpn4686290227
    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
    $50.31
  • All Balls® - Crankshaft Bearing and Seal Kit
    All Balls®Crankshaft Bearing and Seal Kit (24-1042)
    0
    # mpn4686290192
    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
    $59.12
  • All Balls® - Crankshaft Bearing and Seal Kit
    All Balls®Crankshaft Bearing and Seal Kit (24-1106)
    0
    # mpn4686290165
    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
    $150.17
  • All Balls® - Crankshaft Bearing and Seal Kit
    All Balls®Crankshaft Bearing and Seal Kit (24-1047)
    0
    # mpn4686290163
    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
    $57.36
  • All Balls® - Crankshaft Bearing and Seal Kit
    All Balls®Crankshaft Bearing and Seal Kit (24-1100)
    0
    # mpn4686289954
    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
    $40.42
  • All Balls® - Crankshaft Bearing and Seal Kit
    All Balls®Crankshaft Bearing and Seal Kit (24-1002)
    0
    # mpn4686289953
    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
    $62.12
  • All Balls® - Crankshaft Bearing and Seal Kit
    All Balls®Crankshaft Bearing and Seal Kit (24-1099)
    0
    # mpn4686289949
    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
    $31.62
  • All Balls® - Crankshaft Bearing and Seal Kit
    All Balls®Crankshaft Bearing and Seal Kit (24-1063)
    0
    # mpn4686289947
    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
    $50.62
  • All Balls® - Crankshaft Bearing and Seal Kit
    All Balls®Crankshaft Bearing and Seal Kit (24-1027)
    0
    # mpn4686289882
    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
    $72.60
  • All Balls® - Crankshaft Bearing and Seal Kit
    All Balls®Crankshaft Bearing and Seal Kit (24-1015)
    0
    # mpn4686289881
    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
    $59.05
  • All Balls® - Crankshaft Bearing and Seal Kit
    All Balls®Crankshaft Bearing and Seal Kit (24-1103)
    0
    # mpn4686289874
    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
    $54.50
  • All Balls® - Crankshaft Bearing and Seal Kit
    All Balls®Crankshaft Bearing and Seal Kit (24-1098)
    0
    # mpn4686289822
    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
    $120.82
  • All Balls® - Crankshaft Bearing and Seal Kit
    All Balls®Crankshaft Bearing and Seal Kit (24-1066)
    0
    # mpn4686289820
    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
    $65.20
  • All Balls® - Crankshaft Bearing and Seal Kit
    All Balls®Crankshaft Bearing and Seal Kit (24-1033)
    0
    # mpn4686289819
    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
    $56.35
  • All Balls® - Crankshaft Bearing and Seal Kit
    All Balls®Crankshaft Bearing and Seal Kit (24-1059)
    0
    # mpn4683937268
    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
    $53.52
  • All Balls® - Crankshaft Bearing and Seal Kit
    All Balls®Crankshaft Bearing and Seal Kit (24-1110)
    0
    # mpn4618356662
    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
    $78.44
  • All Balls® - Crankshaft Bearing and Seal Kit
    All Balls®Crankshaft Bearing and Seal Kit (24-1115)
    0
    # mpn4618355157
    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
    $129.79
  • Hot Rods® - Crankshaft Main Bearing and Seal Kit
    Hot Rods®Crankshaft Main Bearing and Seal Kit (K231)
    0
    # mpn4645864219
    Crankshaft Main Bearing and Seal Kit 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
    $65.66
  • Hot Rods® - Crankshaft Main Bearing and Seal Kit
    Hot Rods®Crankshaft Main Bearing and Seal Kit (K042)
    0
    # mpn4645864217
    Crankshaft Main Bearing and Seal Kit 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
    $75.56
  • Hot Rods® - Crankshaft Main Bearing and Seal Kit
    Hot Rods®Crankshaft Main Bearing and Seal Kit (K238)
    0
    # mpn4634243245
    Crankshaft Main Bearing and Seal Kit by Hot Rods®. Replacement crankshaft main bearing and seal kit. A quality alternative to expensive OEM bearings and seals. This top-grade product is expertly made in compliance with stringent...
    Stringently tested with the highest quality standardsBuilt for long-lasting dependability and unmatched quality
    $55.76
  • Hot Rods® - Crankshaft Main Bearing and Seal Kit
    Hot Rods®Crankshaft Main Bearing and Seal Kit (K235)
    0
    # mpn4634243244
    Crankshaft Main Bearing and Seal Kit by Hot Rods®. Replacement crankshaft main bearing and seal kit. A quality alternative to expensive OEM bearings and seals. This top-grade product is expertly made in compliance with stringent...
    Stringently tested with the highest quality standardsBuilt for long-lasting dependability and unmatched quality
    $58.46
  • Hot Rods® - Crankshaft Main Bearing and Seal Kit
    Hot Rods®Crankshaft Main Bearing and Seal Kit (K229)
    0
    # mpn4634243243
    Crankshaft Main Bearing and Seal Kit by Hot Rods®. Replacement crankshaft main bearing and seal kit. A quality alternative to expensive OEM bearings and seals. This top-grade product is expertly made in compliance with stringent...
    Stringently tested with the highest quality standardsBuilt for long-lasting dependability and unmatched quality
    $65.66
  • Hot Rods® - Crankshaft Main Bearing and Seal Kit
    Hot Rods®Crankshaft Main Bearing and Seal Kit (K090)
    0
    # mpn4634243241
    Crankshaft Main Bearing and Seal Kit by Hot Rods®. Replacement crankshaft main bearing and seal kit. A quality alternative to expensive OEM bearings and seals. This top-grade product is expertly made in compliance with stringent...
    Stringently tested with the highest quality standardsBuilt for long-lasting dependability and unmatched quality
    $62.06
  • Hot Rods® - Crankshaft Main Bearing and Seal Kit
    Hot Rods®Crankshaft Main Bearing and Seal Kit (K072)
    0
    # mpn4634243235
    Crankshaft Main Bearing and Seal Kit by Hot Rods®. Replacement crankshaft main bearing and seal kit. A quality alternative to expensive OEM bearings and seals. This top-grade product is expertly made in compliance with stringent...
    Stringently tested with the highest quality standardsBuilt for long-lasting dependability and unmatched quality
    $66.56
  • Hot Rods® - Crankshaft Main Bearing and Seal Kit
    Hot Rods®Crankshaft Main Bearing and Seal Kit (K067)
    0
    # mpn4634243234
    Crankshaft Main Bearing and Seal Kit by Hot Rods®. Replacement crankshaft main bearing and seal kit. A quality alternative to expensive OEM bearings and seals. This top-grade product is expertly made in compliance with stringent...
    Stringently tested with the highest quality standardsBuilt for long-lasting dependability and unmatched quality
    $124.16
  • Hot Rods® - Crankshaft Main Bearing and Seal Kit
    Hot Rods®Crankshaft Main Bearing and Seal Kit (K065)
    0
    # mpn4634243233
    Crankshaft Main Bearing and Seal Kit by Hot Rods®. Replacement crankshaft main bearing and seal kit. A quality alternative to expensive OEM bearings and seals. This top-grade product is expertly made in compliance with stringent...
    Stringently tested with the highest quality standardsBuilt for long-lasting dependability and unmatched quality
    $89.06
  • Hot Rods® - Crankshaft Main Bearing and Seal Kit
    Hot Rods®Crankshaft Main Bearing and Seal Kit (K050)
    0
    # mpn4634243231
    Crankshaft Main Bearing and Seal Kit by Hot Rods®. Replacement crankshaft main bearing and seal kit. A quality alternative to expensive OEM bearings and seals. This top-grade product is expertly made in compliance with stringent...
    Stringently tested with the highest quality standardsBuilt for long-lasting dependability and unmatched quality
    $79.16
  • Hot Rods® - Crankshaft Main Bearing and Seal Kit
    Hot Rods®Crankshaft Main Bearing and Seal Kit (K048)
    0
    # mpn4634243229
    Crankshaft Main Bearing and Seal Kit by Hot Rods®. Replacement crankshaft main bearing and seal kit. A quality alternative to expensive OEM bearings and seals. This top-grade product is expertly made in compliance with stringent...
    Stringently tested with the highest quality standardsBuilt for long-lasting dependability and unmatched quality
    $89.06
  • Hot Rods® - Crankshaft Main Bearing and Seal Kit
    Hot Rods®Crankshaft Main Bearing and Seal Kit (K041)
    0
    # mpn4634243227
    Crankshaft Main Bearing and Seal Kit by Hot Rods®. Replacement crankshaft main bearing and seal kit. A quality alternative to expensive OEM bearings and seals. This top-grade product is expertly made in compliance with stringent...
    Stringently tested with the highest quality standardsBuilt for long-lasting dependability and unmatched quality
    $62.96
  • Hot Rods® - Crankshaft Main Bearing and Seal Kit
    Hot Rods®Crankshaft Main Bearing and Seal Kit (K022)
    0
    # mpn4634243226
    Crankshaft Main Bearing and Seal Kit by Hot Rods®. Replacement crankshaft main bearing and seal kit. A quality alternative to expensive OEM bearings and seals. This top-grade product is expertly made in compliance with stringent...
    Stringently tested with the highest quality standardsBuilt for long-lasting dependability and unmatched quality
    $84.56




Friction is a huge problem in the engineering world. It takes the useful energy produced by the motor and converts it into harmful heat that, once accumulated, can destroy the whole assembly. Moreover, while accumulating thermal energy, the components subjected to friction suffer from abrasive wear of their surfaces. Friction in the engine can result in quick wear and/or overheating of the moving parts, yet it affects performance. Now, you know why every single shaft in the vehicle is supported by a bearing, or a few of them – these parts reduce friction.

While doing their crucial job though, the bearings themselves encounter wear. In most cases, bearings (especially engine bearings – the ones supporting the crankshaft), cannot be repaired, only replaced. The good news though is that these components are not that expensive. In fact, unless you’re doing the repair job yourself, it will cost you more to disassemble the engine to get to these worn-out shaft holders. And that’s the reason why only top-notch engine bearings make sense for your motocross bike. You can find and order them in our online store.

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