... .Strictly guarantee delivery time3.Competitive price1. product specification:High super precision angular contact ball bearing(1) precision:P2, P4, P5, P6, P0(2 ... :AC, C, B , with contact angle 25,15,40 degree, brass cage or nylon cage(5material:Chrome steel: GCr15, GCrSiMn, 100Cr6,100CrMn6 ... /Outer wooden case(2) For OD above 250 mm: Wrapped with water-proof belt then put in wooden case4. delivery time ...