Idler Sprockets: Ball Bearing Idler Sprockets have sealed ball bearings with extended internal competition and setscrews for securing to the shaft.
Projection From Centerline – Because of dimensional variation among bearing manufacturers this dimension can vary greatly slightly when different brands of bearings are used. If you have a critical application please demand specific dimensions.
Inner Race projection provides 2 arranged screws on long side to secure bearing to shaft.
“Basic Dynamic Ratings” calculated according to AFBMA standard for “Long Rating And Fatigue Life For Ball Bearings”
Accurately machined, medium carbon steel sprockets and precision surface ball bearings are assembled to provide much duty idler for the many serious conditions. The bearings are pre-lubricated and sealed to retain grease and exclude dirt and moisture. They are not re-lubricatable. The extended inner race with setscrew allows fastening to a pin or shaft without collars or spacing products. In addition, it provides clearance for the chain when bolting the sprocket right to a framework member or tensioning device. A small sprocket for close quarters and a more substantial one for heavier service is provided in each pitch. If sizes other than those listed are needed, please inquire for quotation.