d:12mm D:21mm B:5mm
Structure:Deep Groove
Type:Ball
Precision Rating:P0
Seals Type:open or sealed(ZZ or 2RS)
Number of Row:Single Row
Place of Origin:China (Mainland)
type of supply:manufacturer
clearance:C2 C3 C4 C0 C1
materical:Gcr-15 chrome steel carbon steel
hardness:60-64
Noise level:Z1 Z2 Z3