This conical geometry is used as it gives a larger contact patch, which permits greater loads to be carried than with spherical (ball) bearings, while the geometry means that the tangential speeds of the surfaces of each of the rollers are the same as their raceways along the whole length of the contact patch and no differential scrubbing occurs.

Tapered roller bearings 32015 Specifications

Principle dimensions(d): 75mm
Principle dimensions(D): 115mm
Principle dimensions(B): 25mm
Basic load ratings(dyn.): 106KN
Basic load ratings(stat.): 163KN
Reference speed: 4000r/min
Limiting speed: 5300r/min
Weight: 0.9kg

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