Needle Bearing, 5/16"X1/2"X5/16"

Needle Bearing, 5/16"X1/2"X5/16"

The B55 Needle Bearing is a compact needle roller and cage assembly designed to deliver maximum load-carrying capability in tight spaces. With no inner or outer ring, it relies on the mating shaft and housing as raceways, allowing for a low cross-section profile while maintaining dependable performance. Built as part of the B Series standard full complement, this unsealed bearing is ideal for applications where space is limited but strength is critical.

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: B55
• Product Type: Needle roller and cage assembly
• Dimensions: 5/16" x 1/2" x 5/16"
• Design: No inner or outer ring (shaft and housing serve as raceways)
• Construction: Full complement of mechanically-retained needle rollers
• Series: B Series – Standard Series
• Closure Type: Unsealed
• Cross Section: Low-profile design for maximum load capacity in minimal space
• Lubrication Option: -OH designation available (oil hole for lubrication, when specified)
• Heavy-Duty Option: BH Series available (Heavy Series full complement design)

Ideal For

• Applications requiring high load capacity in compact spaces
• Equipment where the shaft and housing serve as raceways
• Machinery needing a low cross-section bearing design
• Industrial setups where unsealed needle bearings are preferred for lubrication flexibility