Trend B127 Replacement Bearing 1/2in diameter 1/4in bore TREB127 Replacement bearing to suit all Trend bearing guided router cutters. The Bearings are shielded to prevent penetration of dust and grease packed for life and should not be cleaned with solvent or lubricated as this will dissolve the grease and cause premature bearing failure. Outside Diameter:- ½in Inside Diameter:- 1/4in Thickness:- 3/16in TREB127 KINDLY REMINDER: Delivery to the UK Highlands, Channel Islands, Northern Ireland, Isle Of Wight, Isle Of Man and the following postal code areas: BT, FK, KA (1-30), PA(1-49), PA(60-78),PA80, PH, PH(11-40), PH(41-44), PH(49-50), AB, IV, KW, ZE, GY(1-10), JE(1-5), PO(30-41), IM, IR, HS are excluded from our standard delivery charge and may incur extra costs.