... 7000series, 7200series, 33series, 40series32series, QJseries etc.2. Material: Gcr15-China, (AISI) 52100-USA, (DIN) 100CR6-Germany3. Sealing cover: ... -56. Main application: motorcycle, motor, pump, sewing machine, textile machine, agriculture machinery, electric, tools, etc.7. Packing: individual ... motor, gas turbine, oil prump, air compressor, printing machines etc. It is a most widely used bearing in ...