Amundsen Research Sprockets

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Drive Sprockets

These steel drive sprockets feature dual locking screws, a broached keyway on the inside diameter and are available in 5/8'' and 3/4'' id. A 3/16'' key is included with each.

Split Axle Sprockets

Our split style aluminum alloy axle sprockets are .155'' thick, accept #35 space chain and fit virtually all sprocket hubs on the market. Available sizes range from 53 to 100 tooth. Tomar Sprockets are machined and have a blue anodized finish. Azusa Sprockets are not anodized, and have a brushed finish.

Sprocket Hubs

All of our sprocket hubs are CNC machined from billet aluminum alloy and have 6 on 5-1/4'' pattern that accept 6 ea. 1/4-20 bolts (sold separately).