Detailed Product Description Pillow Block Bearing Features:(1) UCP, UCPA. UCPH, UCPW, UCF, UCFA, ... size 12mm to 90mm Metric and imper available.(2) UCP, UCF,UCFL,UCT 300 series, ... bore size 25mm to 140mm available,(3) UCPX, UCFX, UCFLX, UCFCX, UCTX ... to 85mm Metric and imperial size available.(4) Meterial of housings:Material GBDINJISAISIPressed Steel10C10S10C1010Cast IronHT200GG20FC20Class ...