CN201991936U

CN201991936U - Sealed cylindrical roller bearing without inner ring

Info

Publication number: CN201991936U
Application number: CN2011200855124U
Authority: CN
Inventors: 马中贵; 金泽平; 李军
Original assignee: WUHU C&U BEARING CO Ltd
Current assignee: WUHU C&U BEARING CO Ltd
Priority date: 2011-03-26
Filing date: 2011-03-26
Publication date: 2011-09-28
Anticipated expiration: 2021-03-26

Abstract

The utility model discloses a sealed cylindrical roller bearing without an inner ring, which comprises an outer ring, wherein an annular raceway is arranged in the outer ring; a plurality of cylindrical rollers annularly arranged along the raceway are arranged in the annular raceway; a retainer is sheathed out of the cylindrical rollers; and the outer ring is additionally provided with a sealing element matched with the outer ring. In the sealed cylindrical roller bearing, the internal space of the bearing is enlarged, the diameter of the rollers is increased, the carrying capacity of the bearing is effectively improved, the internal space of the bearing is protected, and the service life of the bearing is prolonged.

Description

No inner ring sealing cylinder roller bearing

Technical field

The utility model relates to a kind of roller bearing that is used for the heavy load automobile gearbox, mainly is a kind of no inner ring sealing cylinder roller bearing.

Background technique

Automobile industry is towards high power, light, miniaturization development, and it is more and more littler, more and more lighter that automobile gearbox also becomes, and the moment of torsion that the while gearbox need transmit is also increasing.For satisfying the needs of transmitting torque, the cylindrical bearing of automobile gearbox interior support axle rotation needs bigger load-carrying ability, improve the bearing capacity of bearing, must break through the restriction of bearing interior space.And there is not inner ring solid matter roller designs method; at standard rolling bearing four big assembly outer rings, inner ring, rolling element; removed this assembly of inner ring in the retainer; effectively raise the bearing capacity of bearing, adopted the cylindrical Seal Design simultaneously, changed the packingless history of cylindrical roller; Sealing is contained in the outside of bearing; this design can effectively realize the protection to bearing interior space, improves the running environment of bearing, improves bearing life.

The model utility content

Technical problem to be solved in the utility model provides a kind of inner ring sealing cylinder roller bearing; it adopts no inner ring design; increased the inner space of bearing; increased roller diameter; effectively improve the bearing capacity of bearing; adopt the cylindrical seal designs simultaneously, effectively realize protection, improve bearing life bearing interior space.

For solving the problems of the technologies described above, the technical solution adopted in the utility model is:

A kind of no inner ring sealing cylinder roller bearing, include the outer ring, be provided with ring raceway in the described outer ring, a plurality of cylindrical rollers along the raceway circular array are arranged in the described ring raceway, a plurality of cylindrical rollers are with a retainer outward, have additional the Sealing that matches with it on the described outer ring.

In the conventional design of roller bearing, bearing assembly is that the outer ring is arranged, inner ring, cylindrical roller, form rolling structure with retainer four big assemblies, in order to satisfy the needs that bearing increases the load design, require bearing will use maximized rolling element, yet four big bearing uniies in the conventional design bearing have limited the rolling element assembly space of bearing inside, so design concept that when the design of roller bearing, breaks traditions, the inner ring that deducts in the bearing four big assemblies carries out product specification, and replace the effect work of bearing inner race with the axle journal at the Bearing Installation position of assembled shaft, this design method, the maximized assembly space that improves the inner rolling element of bearing, diameter that can maximized design rolling element improves the bearing capacity of bearing.

In conventional design bearing, roller bearing is always with big load, and the slow-speed of revolution, packingless appearance occur.Because the load ratio that roller bearing bears is bigger, in case there is the impurity foreign matter to enter bearing inside, under the rolling of big load, the early failue of bearing is caused by rapid destruction in the Internal and external cycle raceway of roller bearing and rolling element surface.For the internal environment of improving roller bearing is not entered by impurity; need carry out Seal Design to roller bearing; in the conventional design; roller bearing is owing to the reason of bearing big load; the inner space is occupied the space that has not had the fitting tight part by rolling element and retainer; therefore do not changing bearing load; do not take under the situation of bearing interior space; on the cylindrical of bearing, carry out Seal Design; Sealing is contained in the outside of bearing; this design can effectively realize the protection to bearing interior space, improves the running environment of bearing, improves bearing life.

The utility model has the advantages that:

The utility model adopts no inner ring design, and the inner space that has increased bearing has increased roller diameter, effectively improves the bearing capacity of bearing, adopts the cylindrical seal designs simultaneously, effectively realizes the protection to bearing interior space, improves bearing life.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Embodiment

Referring to Fig. 1, a kind of no inner ring sealing cylinder roller bearing, include outer ring 1, be provided with ring raceway in the described outer ring 1, a plurality of cylindrical rollers 2 along the raceway circular array are arranged in the described ring raceway, be with a retainer 3 outside a plurality of cylindrical rollers 2, have additional the Sealing 4 that matches with it on the described outer ring 1.

Claims

1. no inner ring sealing cylinder roller bearing, include the outer ring, it is characterized in that: be provided with ring raceway in the described outer ring, a plurality of cylindrical rollers along the raceway circular array are arranged in the described ring raceway, a plurality of cylindrical rollers are with a retainer outward, have additional the Sealing that matches with it on the described outer ring.