Tapered roller bearing

Details Tapered roller bearing Tapered roller bearing

2005-10-14

2010-11-30

Hannon, Thomas R (Department: 3656)

Bearings

Rotary bearing

Antifriction bearing

C384S450000

Reexamination Certificate

active

07841773

ABSTRACT:
A tapered roller bearing comprises an inner ring having a conical surface-like raceway surface in it outer periphery and formed with a cone back face rib and a cone front face rib on the opposite sides of the raceway, an outer ring having a conical surface-like raceway in its inner periphery, a plurality of tapered rollers interposed between the raceways of the inner and outer rings, and a cage for holding the tapered rollers in predetermined circumferential intervals, wherein the ratio R/RBASEof the radius of curvature R of the large end face (32) of the tapered roller (30) to the distance RBASEfrom the apex of cone of the tapered roller (30) to the cone back face rib surface (18) of the inner ring (10) is set at 0.75 to 0.87, and the end face deflection of the large end face (32) of the tapered roller (30) is 3 μm or less.

REFERENCES:
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Robert G. Campbell, Integrated Product Design and Manufacturing Using Geometric Dimensioning and Tolerancing, 2003, p. 73-74.

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