US 8,894,292 B2Granted

Split outer ring, split rolling bearing using the same ring and construction and method of mounting the same rolling bearing

AssigneeJtekt Corporation

InventorsKazuyoshi Yamakawa, Junji Murata, Toshiyuki Saito, Takashi Sada, Naoki Tani

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Abstract

A split outer ring of a split rolling bearing, which splits in a radial direction, includes a pair of split outer ring members which are each formed into a semi-cylindrical shape and which are formed into a cylindrical shape by being butted against each other at circumferential end portions. A pair of first flat plane portions which extend from both axial end edges of the end portions towards a center in parallel with an axis and a V-shaped recess portion, positioned between the first flat plane portions and is recessed in a circumferential direction relative to the pair of first flat plane portions, are formed at one end portion of the circumferential end portions which are butted against each other, and a pair of second flat plane portions which extend from the both axial end edges in parallel with the axis.

Claims20

Dependent claims

A split outer ring of a split rolling bearing which splits in a radial direction, the split outer ring comprising:

a pair of split outer ring members which are each formed into a semi-cylindrical shape and which are formed into a cylindrical shape by being butted against each other at circumferential end portions,
wherein a pair of first flat plane portions which extend from both axial end edges of the end portions towards a center in parallel with an axis and a V-shaped recess portion, positioned between the first flat plane portions and is recessed in a circumferential direction relative to the pair of first flat plane portions, are formed at one end portion of the circumferential end portions which are butted against each other, and a pair of second flat plane portions which extend from said both axial end edges in parallel with the axis so as to be brought into abutment with the pair of first flat plane portions and a projecting portion which is formed between the pair of second flat plane portions and which projects circumferentially into a shape which corresponds to the recess portion so as to be introduced into the recess portion are formed at the other end portion which is butted against the one end portion, and
wherein a space is formed between the recess portion and the projecting portion so as to avoid a contact between a bottom portion of the recess portion and a vertex portion of the projecting portion.

A split rolling bearing, comprising:

a split outer ring comprising a pair of split outer ring members which are each formed into a semi-cylindrical shape and which are formed into a cylindrical shape by being butted against each other at circumferential end portions, the pair of split outer ring members comprising:
a first member comprising a curved surface and a v-shaped projection;
and
a second member comprising another curved curve and a v-shaped recess;
a plurality of rolling elements which are aligned on an inner circumferential surface side of the outer ring;
and
a cage for holding the plurality of rolling elements so that the respective rolling elements are disposed at substantially equal intervals in a circumferential direction, and comprising a shaft which is fitted therein,
wherein, in a flank formed on a radially inner side edge portion of an end face of the split outer ring, a sectional shape of the flank within at least a range where the rolling elements are brought into contact comprises an easement curve having a v-shaped profile at the radially inner side edge portion of the end face of the split outer ring formed by the curved surface of the first member and said curved surface of the second member.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/736,880Filed 18 May 2009
Priority: JP 2008-13083919 May 2008
Published: US 2011/0064350 A117 Mar 2011
Granted: 25 Nov 2014
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

F16C 9/02
Bearings for crankshafts or connecting-rods; Attachment of connecting-rods: crankshaft bearings
F16C 9/04
Bearings for crankshafts or connecting-rods; Attachment of connecting-rods: connecting-rod bearings; Attachments thereof
F16C 19/466
With one row or needles: comprising needle rollers and an outer ring, i.e. subunit without inner ring
F16C 33/60
Raceways; Race rings: divided or split, e.g. comprising two juxtaposed rings