CN202073915U

CN202073915U - Rolling bearing

Info

Publication number: CN202073915U
Application number: CN2011201521722U
Authority: CN
Inventors: 赵联春
Original assignee: Shanghai F & S Bearing Tech Co Ltd
Current assignee: Shanghai F & S Bearing Tech Co Ltd
Priority date: 2011-05-13
Filing date: 2011-05-13
Publication date: 2011-12-14
Anticipated expiration: 2021-05-13

Abstract

The utility model provides a rolling bearing, which comprises outer rings, inner rings, rolling bodies and retainers, wherein one rolling body is located between the rolling paths of each inner ring and each outer ring, and each rolling body is evenly partitioned by one retainer in the rolling paths along the circumferential direction. The rolling bearing is characterized in that seal devices are respectively arranged in seal grooves of bearing rings, and the seal devices are arranged at the outer sides of the retainers. The seal devices are made of polytetrafluoroethylene in material, and clearances respectively formed between each seal device and the inner ring as well as between each seal device and the outer ring are 0.001mm at minimum. In the rolling bearing provided by the utility model, the seal elements are made of the polytetrafluoroethylene in material to replace metal stamping-type dust covers and rubber seal rings, thereby, the phenomenon that the roundness, the ovality and the verticality of the outer rings of the rolling bearing, in particular to a thin-wall bearing, are influenced when the stamping dust covers are assembled on the bearing is avoided, and simultaneously, a seal dustproof effect and the compatibility between the seal elements and a lubricant are improved.

Description

Rolling bearing

Technical field

The utility model relates to a kind of bearing, particularly the technical field of sealing technology of rolling bearing.

Background technique

Rolling bearing generally adopts metal stamping formula dust cover, rubber seal to seal.The rolling bearing that adopts metal stamping formula dust cover to seal, cause that easily circularity, ovality and the perpendicularity of housing washer are overproof when rolling bearing assembles the punching press dust cover on the one hand, then cause bearing degradation or scrap, especially bigger for the thin-wall bearing influence; The metal dust cover contacts with seal groove when avoiding bearing operation on the other hand, and seal clearance is selected bigger, thereby causes the sealing and dustproof weak effect.Adopt the rolling bearing of rubber material as Sealing, rubber seal and bearing internal lubricant compatibility are relatively poor.

The model utility content

For solving the problems of the technologies described above, it is a kind of easy for installation that the utility model provides, the rolling bearing that seal clearance is little and compatible good with oiling agent.

The utility model rolling bearing comprises outer ring, inner ring, rolling element, retainer; Rolling element is between the raceway of inner ring and outer ring; Retainer is along the circumferential direction evenly separated rolling element in raceway; Be provided with seal arrangement in the seal groove of bearing ring, described seal arrangement is located at the outside of described retainer, and the material of described seal arrangement is a teflon.

As a kind of optimal way of the present utility model,, make the single face stuffing box bearing at the one-sided seal arrangement that is provided with of rolling bearing; Perhaps the bilateral at rolling bearing is provided with seal arrangement, makes the dual face seals bearing.

As a kind of optimal way of the present utility model, described rolling element is ball or cylindrical roller or tapered roller or needle roller or spherical roller or spiral roller, and corresponding bearing is ball bearing or roller bearing or tapered roller bearing or needle bearing or spheric roller bearing or spiral roller bearing.

As a kind of optimal way of the present utility model, smallest radial seal clearance between described seal arrangement and the inner ring seal groove and minimum axial direction seal clearance minimum are 0.001 millimeter.

The utility model rolling bearing, adopt polytetrafluoroethylmaterial material to do Sealing and replace metal stamping formula dust cover and rubber seal, to the influence of outer ring circularity, ovality and the perpendicularity of rolling bearing especially thin-wall bearing, improved the compatibility of sealing and dustproof effect and Sealing and oiling agent simultaneously when having avoided bearing assembling punching press dust cover.

Description of drawings

Fig. 1 is the utility model rolling bearing sectional drawing.

Description of reference numerals in the utility model rolling bearing accompanying drawing.

The 1-outer ring	The 2-inner ring	The 3-rolling element
			The 4-retainer	The 5-seal arrangement	The 6-oiling agent

Embodiment

Below in conjunction with accompanying drawing the utility model rolling bearing is described in further detail.

As shown in Figure 1, the utility model rolling bearing comprises: outer ring 1, inner ring 2, rolling element 3, retainer 4; Rolling element 3 is between the raceway of inner ring 2 and outer ring 1; Retainer 4 is along the circumferential direction evenly separated rolling element 3 in raceway; Be provided with seal arrangement 5 in the seal groove of bearing ring, seal arrangement 5 is located at the outside of retainer 4, and the material of seal arrangement 5 is a teflon, and smallest radial seal clearance and minimum axial direction seal clearance minimum between itself and the inner ring seal groove are 0.001 millimeter.

During installation, enchashment row machining finishes, etc. bearing outer ring 1, inner ring 2, rolling element 3 and retainer 4 to be assembled, take up allotment of labor's skill according to normal axis and finish apolegamy and riveted and cleaning-drying; Then, to the inner oiling agent 6 that adds of rolling bearing; Then polytetrafluoroethylmaterial material seal arrangement 5 is pressed in the seal groove of housing washer 1 and inner ring 2; Be coated with rust preventive oil, packing at last.

Claims

1. rolling bearing comprises outer ring, inner ring, rolling element, retainer; Rolling element is between the raceway of inner ring and outer ring; Retainer is along the circumferential direction evenly separated rolling element in raceway; It is characterized in that: be provided with seal arrangement in the seal groove of bearing ring, described seal arrangement is located at the outside of described retainer, and the material of described seal arrangement is a teflon.

2. according to the described rolling bearing of claim 1, it is characterized in that,, make the single face stuffing box bearing at the one-sided seal arrangement that is provided with of rolling bearing; Perhaps the bilateral at rolling bearing is provided with seal arrangement, makes the dual face seals bearing.

3. according to the described rolling bearing of claim 1, it is characterized in that, described rolling element is ball or cylindrical roller or tapered roller or needle roller or spherical roller or spiral roller, and corresponding bearing is ball bearing or roller bearing or tapered roller bearing or needle bearing or spheric roller bearing or spiral roller bearing.

4. according to claim 1 or 2 or 3 described rolling bearings, it is characterized in that smallest radial seal clearance between described seal arrangement and the inner ring seal groove and minimum axial direction seal clearance minimum are 0.001 millimeter.