Moline Type E Tapered Roller Bearings offer many advantages including high-speed suitability, positive locking to the shaft, ruggedness, and low price.
The housings are as compact as possible without sacrificing their brawny ruggedness. Made in the USA of high quality Class 30 cast iron, they are precision machined to close tolerances.
On each end of the inner race there is a Drive Collar with two headless set screws spaced 120° apart. These extend through clearance holes in the inner race, locking it to the shaft.