Technical Insights & Bearing Guides
Practical bearing guides, product knowledge and technical insights from SMS Bearings
Bearing Suffix Guide: What C3, C4, ZZ, 2RS, NR, K and Other Bearing Codes Mean
Technical Bearing Guide Bearing Suffix Guide: C3, C4, ZZ, 2RS, NR, K & More Learn what common bearing suffixes mean, how they
September 30, 2026