Heavy-duty needle roller bearings have a machined and ground channel-shaped outer ring with a complement of needle rollers retained and guided by a cage. The thick outer ring provides maximum load capacity and shock resistance with a relatively small radial cross section.
With the high-strength cage retaining and guiding the rollers, this design provides high speed and lubrication retention capability. A lubrication groove and hole in the O. D. facilitate lubrication through the outer ring. These bearings can be used with or without a machined and ground inner ring depending on the suitability of the shaft as a raceway surface.
Size range:
Design Attributes：
High-strength cage retains and guides rollers
High speed and lubrication-retention capability. A lubrication groove and hole in the O. D. facilitate lubrication through the outer ring.
Bearings can be used with or without a machined and ground inner ring depending on the suitability of the shaft as a raceway surface.
Applications：
Gear pumps
Sheaves
Automotive transmissions
Two-cycle engines