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The designations of most SKF rolling bearings follow a system that may consist of a basic designation with or without one or more prefixes and/or suffixes (→ Basic bearing Examples and the applicable options for SKF deep groove ball bearings are given below. -RZ, -2RZ, Non-contact seal, NBR, on one or both sides.
RZ. Metal backed non-contact seal on one side (Also 2RZ). Z. Metal plate. ZZ. MRC seal designation (SKF 2RS1). 2Z. Steel plate on 2 sides. 3. Cage Design. J. Pressed steel cage, rolling element guided. JEM. Steel cage (J), quiet running, C3 clearance (not marked on bearing)**. M. Machined brass cage, rolling element
Principal dimensions, Basic load ratings, Fatigue load limit, Speed ratings, Designations. dynamic, static, Reference speed, Limiting speed, Bearing, Snap ring. d, D, B, C, C, C0, Pu. mm, kN, kN, r/min
d, 35, mm. D, 62, mm. B, 14, mm. d1, ≈, 43.75, mm. D2, ≈, 55.61, mm. r1,2, min. 1, mm. Abutment dimensions. da, min. 39.6, mm. da, max. 43.7, mm. Da, max. 57.4, mm. ra, max. 1, mm. Calculation data. Basic dynamic load rating, C, 16.8, kN. Basic static load rating, C0, 10.2, kN. Fatigue load limit, Pu, 0.44, kN. Reference
have been subjected to high temperatures, such as when dismounting the bearing, the following safety precautions should be observed: Bearings with low friction seals. SKF deep groove ball bearings with lowfriction seals, designation suffixes RSL, 2RSL or RZ, 2RZ are manufactured in two designs depending on bearing