Round Drive Belts

PRB Rubber Belt. O= Round Cut Rubber Drive Belts. The following letter refers to the cross section / thickness of belt. OY=.028"-.039", Wall Thickness, OX=.040"-.049" Wall Thickness, OQ=.050"-.064" Wall Thickness, OA=.065"-.079" Wall Thickness, OB=.080"-.094" Wall Thickness, OC=.095"-.139" Wall Thickness, OD=.145"-.189" Wall Thickness, OE=.203"-.215" Wall Thickness. The last numbers refers to the length of belt. This would be the circumference measured in inches. You can also cut the belt and layout on a ruler for measuring. (Note: not diameter)