NSK Bearing Cross-Reference

NSK bearing sizes across types, with full cross-reference to other brands. For deep groove ball bearings, NSK uses the suffix DDU for contact seals and ZZ for shields.

Angular Contact Ball Bearing (96)

Cylindrical Roller Bearing (226)

Deep Groove Ball Bearing (251)

Four-Point Contact Ball Bearing (30)

Insert (Mounted) Ball Bearing (15)

Needle Roller Bearing (29)

Self-Aligning Ball Bearing (92)

Spherical Roller Bearing (129)

Tapered Roller Bearing (17)

Thrust Ball Bearing (124)

Boundary-dimension reference only. Match seal (where applicable), clearance and precision suffixes before substituting.