Specifications: 1) Shield: Open bearing, Z, ZZ, RS, 2RS) Snap ring: N, NR) Tolerance codes: ABEC-1, ABEC-3, ABEC-5, ) Vibration level codes: Blank, V4, V3, V2, V1) Internal clearance codes: Blank, C0, CM, C2, C3, Excillent quality, Cheaper price!

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