CN103742542A

CN103742542A - Sealed-type four-row tapered roller bearing

Info

Publication number: CN103742542A
Application number: CN201310735501.XA
Authority: CN
Inventors: 邹德鹏; 曹晓辉; 宋世勇; 顿丽华; 崔传荣; 吴祖琳
Original assignee: Wafangdian Bearing Group Corp
Current assignee: Wafangdian Bearing Group Corp
Priority date: 2013-12-28
Filing date: 2013-12-28
Publication date: 2014-04-23

Abstract

The invention provides a sealed-type four-row tapered roller bearing which belongs to the technical field of a bearing; a sealing ring is fixedly arranged between two inner rings; a part of the sealing ring is provided with a steel frame and the other part is provided with a rubber lip structure; the part, provided with the steel frame, of the sealing ring is in interference fit with the inner ring (a); the rubber lip structure of the sealing ring is sealed with the side of the inner ring (b); the sealed-type four-row tapered roller bearing has the following beneficial effects that the bearing is convenient to mount; the sealing ring is mounted at the same time when a bearing inner ring assembly is assembled; the problem of failed sealing due to the rolling defect of a sealing ring occurring sometimes when the bearing is mounted in a steel mill caused by the fact that the sealing ring is soft in the primary structure manner, is solved; the sealing is tighter when the pressure between the bearing and a rolling roller is higher.

Description

Sealed type four-row tapered roller bearing

technical fieldsealed type four-row tapered roller bearing, belongs to technical field of bearings.

background techniquetraditional bearing is due to project organization reason, and the impurity of bearing outside enters bearing inside, affects bearing working life; Sealed type four-row tapered roller bearing has three positions to need sealing, and its both sides have between seal ring, two inner rings and have seal ring; Bearing is Spielpassung with coordinating of roll, between four-row tapered roller bearing and roll, there is axial reciprocating to move at work, when axial reciprocating moves, can produce very large pressure of moment, impurity can be clamp-oned in bearing bore, therefore the sealing between two inner rings is very crucial, and this position seal failure occurs often; Between existing two inner rings, sealing configuration mainly contains two kinds of modes below, mode one seal ring is softer, seal ring can not install in bearing producer, can only be in the on-the-spot installation separately of steel mill, when installing separately, often there is the seal ring problem of rolling about, mode two these structures are mainly used in preventing that in bearing, grease leaks, and enter poor effect in bearing for anti-impurity.

summary of the inventiondefect in view of prior art exists, the object of this invention is to provide a kind of sealed type four-row tapered roller bearing that sealing between sealed type tapered roller bearing two inner rings is carried out to optimal design.

For achieving the above object, the technology used in the present invention solution is: sealed type four-row tapered roller bearing, seal ring is fixedly mounted between two inner rings, a seal ring part is provided with Steel Skeleton, another part is rubber lip structure, seal ring is interference fit with Steel Skeleton part with inner ring a, rubber sealing ring lip structure and inner ring b side seal.

Sealed type four-row tapered roller bearing, its beneficial effect is: convenient installation, when bearing inner ring assembly is installed, seal ring connects together and installs simultaneously; Overcome original structure mode one seal ring softer, the defect that there will be seal ring to roll about while being provided with at steel mill scene, has solved the problem that causes seal failure, and the pressure producing between bearing and roll is larger, seals tighter.

Accompanying drawing explanation

Fig. 1 is the structural drawing of sealed type four-row tapered roller bearing;

Fig. 2 is the sealing place local structural graph of sealed type four-row tapered roller bearing.

Fig. 1, Fig. 2 reference character are as follows: 1, seal ring, 2, inner ring a, 3, Steel Skeleton, 4, rubber lip structure, 5, inner ring b.

Embodiment

The structural drawing of the sealed type four-row tapered roller bearing showing with reference to the accompanying drawings is below described as follows: sealed type four-row tapered roller bearing, seal ring 1 is fixedly mounted between two inner rings, seal ring 1 part is provided with Steel Skeleton 3, another part is rubber lip structure 4, seal ring 1 is interference fit with Steel Skeleton 3 parts and inner ring a2, seal ring 1 rubber lip structure 4 and inner ring b5 side seal.

Claims

1. sealed type four-row tapered roller bearing, it is characterized in that: seal ring is fixedly mounted between two inner rings, a seal ring part is provided with Steel Skeleton, another part is rubber lip structure, seal ring is interference fit with Steel Skeleton part with inner ring a, rubber sealing ring lip structure and inner ring b side seal.