NEW WITH DOUBLE-SHIELDED ABEC 3 BEARING URETHANE SURFACE Idler Rollers G E O.D. ROLLER BEARING B NO CHAMFER SECTION  A-A A A .5000 Catalog Number G .375 .875 .500 .875 .3750 A  7Z  8-URBB05018 A  7Z  8-URBB07518 A  7Z  8-URBB06225 A  7Z  8-URBB07525 A  7Z  8-URBB11237 A  7Z  8-URBB15037 A  7Z  8-URBB11250 A  7Z  8-URBB15050 MATERIAL:   Roller - Urethane 60 Durometer Ground Outside Diameter Bearing, Double-Shielded - Stainless Steel .2500 .1875 O.D. ± .003 .125 E Face Width ± .010 .187 .281 .281   .500   .750   .625   .750 1.125 1.500 1.125 1.500 B Bore + .0000 - .0002 5  REV:  4-12-07  JC