1.precision P2,P4,P5,P6,P0 2.GCR15 ,stainless 440c , 17-4PH 3.cage material brass,nylon PA66 4 rubber seal,open Bearing TypeDimensionsBasic load ratingsdDd2D3rsminCC0InchesmmkNFPXU 400 2RU4101.60120.65108.65115.00.211.1016.23FPXU 404 2RU41/4107.95127.00115.00121.40.211.2817.06FPXU 408 2UR41/2114.30133.35121.35127.70.211.6318.30FPXU 412 2RU43/4120.65139.70127.70134.10.211.8019.13FPXU 500 2RU5127. ...