SKF Drawn cup needle roller bearing

SKF Needle Bushings, HK 2820 28x35x20

Type HK needle bushings are needle bearings with a thin-walled outer ring manufactured without cutting. Their key features include a very low cross-section height and high load capacity. They are primarily used where the housing bores cannot be machined as raceways for needle cages, and where compact and economical bearings are desired. They are pressed into the housing bore and fit securely. This allows for simple and cost-effective manufacturing of the housing bores when no shoulders or retaining rings are needed for axial retention. The outer ring made of hardened steel sheet and the cage-guided needle cage form a self-supporting unit. Main dimensions: ISO 3245:2007 / DIN 618-1:1993 / DIN 618-2:1993, as far as standardized.

Suffixes:
RS Sealing ends (NBR) on one side
2RS Steel sheet reinforced contact seals made of acrylonitrile-butadiene rubber (NBR) on both sides
TN Glass fiber reinforced cage made of polyamide 66.