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Shield / closure: open ball bearing, Z, ZZ, RS, 2RS,2RZ Ball bearings snap ring: N, NR Tolerance codes: ABEC-1, ABEC-3, ABEC-5, ABEC-7 Vibration level codes: V4, V3, V2, V1 Internal clearance codes: C2, C3, C4, C5 Ball bearings material: AISI52100, AISI440C, AISI304, AISI316, ceramic Retainer: PTFE, nylon, PEEK or stainless steel Hardness for rings and balls: 59 - 63HRC Ball bearings bore size: 1 - 200mm |
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