CN202140431U

CN202140431U - Double-layer rolling bearing

Info

Publication number: CN202140431U
Application number: CN201120254551U
Authority: CN
Inventors: 唐少艺
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-07-19
Filing date: 2011-07-19
Publication date: 2012-02-08
Anticipated expiration: 2021-07-19

Abstract

The utility model discloses a double-layer rolling bearing, which comprises an outer ring, a first rolling body, a first retainer, a middle ring, a second rolling body, a second retainer and an inner ring. The first rolling body is arranged between the outer ring and the middle ring through the first retainer, and the second rolling body is located between the middle ring and the inner ring through the second retainer. The double-layer rolling bearing can improve the upper limit of rolling speed of a single-layer rolling bearing, and by adopting the double-layer rolling bearing, the speed of the inner ring and the outer ring is increased by one time compared with the single-layer rolling bearing.

Description

A kind of double-layer rolling bearing

Technical field

The utility model relates to a kind of bearing, and a kind of double-layer rolling bearing of more specifically saying so belongs to the mechanical parts field.

Background technique

At present, the employed rolling bearing of people is to adopt the individual layer rolling element mostly, and the maximum line velocity of rolling element is the restriction that receives material, so the rolling bearing speed of individual layer rolling element has also just received the restriction of rolling element.

The model utility content

The technical problem that the utility model solves provides a kind of double-layer rolling bearing that rolling bearing speed is provided.

For solving the problems of the technologies described above; The utility model provides a kind of double-layer rolling bearing; Comprise outer ring, first rolling element, first retainer, mesosphere, second rolling element, second retainer and inner ring; Said first rolling element is positioned between outer ring and the mesosphere through first retainer, and said second rolling element is positioned between mesosphere and the inner ring through second retainer

Further, in a kind of double-layer rolling bearing of the utility model, said first rolling element and second rolling element are ball.

Further, in a kind of double-layer rolling bearing of the utility model, said first rolling element and second rolling element are roller.

The utility model compared with prior art; Have the following advantages: a kind of double-layer rolling bearing of the utility model; Can improve the bearing of the rolling bearing speed limit of individual layer rolling element, adopt the speed of the rolling bearing Internal and external cycle of double-deck rolling element to double than the speed of individual layer rolling body bearing.

Description of drawings

Fig. 1 is the structural representation of the utility model double-layer rolling bearing.

Embodiment

As shown in Figure 1; A kind of double-layer rolling bearing of the utility model comprises outer ring 1, first rolling element 2, first retainer 3, mesosphere 4, second rolling element 5, second retainer 6 and inner ring 7; Said first rolling element 2 is positioned between outer ring 1 and the mesosphere 4 through first retainer 3, and said second rolling element 5 is positioned between mesosphere and the inner ring through second retainer 3.

Embodiment 1

Double-layer rolling bearing comprises outer ring 1, first rolling element 2, first retainer 3, mesosphere 4, second rolling element 5, second retainer 6 and inner ring 7; Said first rolling element 2 is positioned between outer ring 1 and the mesosphere 4 through first retainer 3; Said second rolling element 5 is positioned between mesosphere and the inner ring through second retainer 3, and wherein first rolling element 2 and second rolling element 5 are ball.

Embodiment 2

Double-layer rolling bearing comprises outer ring 1, first rolling element 2, first retainer 3, mesosphere 4, second rolling element 5, second retainer 6 and inner ring 7; Said first rolling element 2 is positioned between outer ring 1 and the mesosphere 4 through first retainer 3; Said second rolling element 5 is positioned between mesosphere and the inner ring through second retainer 3, and wherein first rolling element 2 and second rolling element 5 are roller.

The utility model theory structure is simple, and is reasonable in design, implements more or less freely.The user can improve the rotational speed of revolving part through the rolling bearing of this bilayer rolling element, can be widely used in the various occasions that need high speed rotating such as high ferro bearing, aircraft bearing, high-speed electric main shaft, high speed gyroscope.

Claims

1. double-layer rolling bearing; It is characterized in that: comprise outer ring, first rolling element, first retainer, mesosphere, second rolling element, second retainer and inner ring; Said first rolling element is positioned between outer ring and the mesosphere through first retainer, and said second rolling element is positioned between mesosphere and the inner ring through second retainer.

2. double-layer rolling bearing according to claim 1 is characterized in that: said first rolling element and second rolling element are ball.

3. double-layer rolling bearing according to claim 1 is characterized in that: said first rolling element and second rolling element are roller.