Specifications Deep Groove Ball Bearing 1.Simple structure, the most widely ... where high speeds and low power loss are required. Model Specifications We have open sype, Z, ZZ, RS, 2RS, N, NR ... & Noise Availability: Z, Z1, Z2, Z3, Z4; V, V1, V2, V3 etc. Boundary dimensions(mm)Basic load ratings(kN)Limiting speeds ...