... precison, long life 3. most competitive price hot selling SKF bearing 23180EM1 C31. Product range of use:1) These ... 4) Shield / Closure: Plain (Open), Z, ZZ, RS, 2RS, 2ZR, 2Z. 5) Vibration and Noisy level: Z1, Z2, Z3 ... ability to produce your own brand or other famous brand (SKF, NSK, FAG, HCH, KG, KOYO brand, etc.) ... , condition monitoring and technical training. hot selling SKF bearing 23180EM1 C3