Idler Sprockets: Ball Bearing Idler Sprockets have sealed ball chain sprocket bearings with extended inner race and setscrews for securing to the shaft.
Projection From Centerline – Due to dimensional variation among bearing manufacturers this dimension can vary greatly slightly when different brands of bearings are used. Should you have a critical application please demand specific dimensions.
Inner Race projection provides 2 set screws on long aspect to secure bearing to shaft.
“Basic Dynamic Ratings” calculated in accordance to AFBMA standard for “Long Rating And Fatigue Life For Ball Bearings”
Accurately machined, medium carbon steel sprockets and precision ground ball bearings are assembled to supply a heavy duty idler for the most serious conditions. The bearings are pre-lubricated and sealed to maintain grease and exclude dirt and moisture. They aren’t re-lubricatable. The extended internal race with setscrew enables fastening to a pin or shaft without collars or spacing gadgets. It also provides clearance for the chain when bolting the sprocket directly to a framework member or tensioning gadget. A little sprocket for close quarters and a larger one for heavier provider is offered in each pitch. If sizes apart from those listed are needed, make sure you inquire for quotation.