Bearing 421-22-12780 Komatsu Wheel loader

Select the number of specifications

Please check the product information you want!

Product Detail

Bearing – Part No. 421-22-12780 for Komatsu Wheel Loader

This bearing is a genuine replacement component specifically designed for Komatsu wheel loaders. It is typically used in the axle, final drive, or wheel hub assembly, where it supports radial and axial loads while enabling smooth rotation of the wheel or shaft. The bearing features high-quality bearing steel, precision-ground raceways, and heat-treated rolling elements, providing excellent durability, low friction, and high load-carrying capacity under heavy loading conditions common in loading, digging, and material handling applications. Proper function of the 421-22-12780 bearing is critical for wheel alignment, drivetrain efficiency, and overall machine stability. Using an authentic Komatsu bearing guarantees correct dimensions, internal clearance, and hardness, which are essential for safe and reliable wheel loader operation. Regular inspection for noise, vibration, or excessive play is recommended, and replacement should be made with genuine Komatsu parts to prevent premature axle or final drive failure.

Part Number	English Product Name
421-22-12780	Bearing (Wheel Hub / Final Drive)
421-22-12790	Bearing – Axle Shaft
421-22-12800	Bearing – Differential Carrier
421-22-12810	Tapered Roller Bearing (Inner)
421-22-12820	Tapered Roller Bearing (Outer)
421-22-12830	Needle Bearing – Planetary Gear
421-22-12840	Thrust Bearing – Steering Knuckle
421-22-12850	Bearing Cone
421-22-12860	Bearing Cup
421-22-12870	Bearing Seal Kit (Oil Seal + O-ring)
421-22-12880	Bearing Locknut
421-22-12890	Bearing Washer
421-22-12900	Bearing Spacer Tube
421-22-12910	Axle Shaft Bearing Retainer
421-22-12920	Wheel Hub Bearing Assembly (Complete)
421-22-12930	Bearing – Transfer Case Output Shaft
421-22-12940	Bearing – Transmission Output Flange

No comment

Product Detail

Bearing – Part No. 421-22-12780 for Komatsu Wheel Loader

Part Number	English Product Name
421-22-12780	Bearing (Wheel Hub / Final Drive)
421-22-12790	Bearing – Axle Shaft
421-22-12800	Bearing – Differential Carrier
421-22-12810	Tapered Roller Bearing (Inner)
421-22-12820	Tapered Roller Bearing (Outer)
421-22-12830	Needle Bearing – Planetary Gear
421-22-12840	Thrust Bearing – Steering Knuckle
421-22-12850	Bearing Cone
421-22-12860	Bearing Cup
421-22-12870	Bearing Seal Kit (Oil Seal + O-ring)
421-22-12880	Bearing Locknut
421-22-12890	Bearing Washer
421-22-12900	Bearing Spacer Tube
421-22-12910	Axle Shaft Bearing Retainer
421-22-12920	Wheel Hub Bearing Assembly (Complete)
421-22-12930	Bearing – Transfer Case Output Shaft
421-22-12940	Bearing – Transmission Output Flange