#40 Chain Sprockets

One of our most popular sizes for roller chain sprockets is #40. We carry a wide range of sprockets in this size including idler, finished bore, QD-bushed, and taper-lock.

#40 Idler Sprockets

Our inventory of #40 idler sprockets includes 1/2” and 5/8” bore sizes. Built-in ball bearings allow these sprockets to spin freely on the drive shaft and control and maintain tension on the chain. View Inventory >

#40 Finished Bore Sprockets

If you’re in need of a sprocket for a specific drive shaft diameter that includes a keyway and set screws, a finished bore sprocket is what you’re looking for. Our extensive inventory includes nearly one hundred #40 finished bore sprockets of various bore sizes and number of teeth. View Inventory >

#40 QD-Bushed Sprockets

With bolt holes allowing the unit to be secured to bushings, Quick Detachable (QD) bushed sprockets offer a high torque capacity. Choose from nearly thirty #40 QD-bushed roller chain sprockets. View Inventory >

#40 Taper-Lock Sprockets

Find a taper-lock sprocket to match your taper-lock bushing for a snug fit on the drive shaft. Our online inventory includes a wide-ranging selection of #40 taper-lock sprockets in a number of bore sizes and tooth counts. View Inventory >

Browse our full online inventory of roller sprockets and filter by bore size and number of teeth, or find a wide range of other available sizes. Find the exact dimensions, weight, and shipping information on the product pages. Not finding the sprocket you were looking for? Request information and someone will get back to you within 24 hours.