US 7,249,893 B2 · Rolling bearing and rod end bearing

Abstract

A rolling bearing and a rod end bearing are provided with a tilt mechanism and a rotary mechanism that are mutually independent. The tilt mechanism has a non-lubricated type spherical sliding bearing structure. The rotary mechanism has a rolling bearing structure which may or may not be sealed. By means of the non-lubricated type spherical sliding bearing structure, a tilt of the shaft center is made possible, and by means of a sealed rolling bearing structure, problems such as a lubrication oil leak are avoided, and carrying out high speed rotation and continuous rotation become possible. Because the sealed rolling bearing structure of the rotary mechanism does not call for a shaft center tilt function at all, the material of the seal can be chosen such that it emphasizes sliding resistance and high durability.

Claims4

Dependent claims

A rolling bearing comprising:

a main body having a spherically-shaped mounting hole;
a tilt mechanism positioned in the spherically-shaped mounting hole and having a self-lubricating sliding member and a spherical part having a through hole, the spherical part being freely slidable within the self-lubricating sliding member;
and
a rotary mechanism,
wherein said tilt mechanism and said rotary mechanism are mutually independent;
wherein said rotary mechanism comprises a first rolling bearing and a second rolling bearing,
wherein each of the rolling bearing having an inner race and an outer race,
wherein the outer races are pushed into the through hole, and
wherein the spherically-shaped mounting hole includes a concave portion, the self-lubricating sliding member includes a protruding portion, and the self-lubricating sliding member is secured within the spherically-shaped mounting hole by mating of the concave portion and the protruding portion.

6 more elements

Dependencies are inferred from the claim text.

Rolling bearing and rod end bearing

Life of this patent

Rolling bearing and rod end bearing

Life of this patent

Abstract

Claims4