... time3.Competitive price1. product specification:High super precision angular contact ball bearing(1) precision:P2, P4, P5, P6, P0(2) process range ... , 7000,7200, 7300, 71800 series(4) structure:AC, C, B , with contact angle 25,15,40 degree, brass cage or nylon ... /Outer wooden case(2) For OD above 250 mm: Wrapped with water-proof belt then put in wooden case4. delivery time ...