CN211100785U

CN211100785U - Novel basket-shaped double-row tapered roller bearing with inner eight inner diameters of 498.475

Info

Publication number: CN211100785U
Application number: CN201921020053.4U
Authority: CN
Inventors: 文宇; 刘小辉; 钟飞; 张福洪
Original assignee: Chengdu Kehua Heavy Bearing Co ltd
Current assignee: Chengdu Kehua Jincheng Precision Machinery Manufacturing Co ltd
Priority date: 2019-07-02
Filing date: 2019-07-02
Publication date: 2020-07-28
Anticipated expiration: 2029-07-02

Abstract

The novel double-row tapered roller bearing with the inner eight inner diameters 498.475 in the basket shape is provided with two single-row inner rings and a double-row outer ring, an inner spacing ring is arranged between the two inner rings, a plurality of rollers are arranged between the inner ring and the outer ring, and the relative position between the two rows of rollers is inner eight-shaped and is supported by a basket-shaped retainer. In order to solve the problems of large impact load, high rotating speed, short service life of the bearing, long roller changing consumption time and the like of the existing bearing, the original rolling bearing limit design method of a company is adopted, and the values of the external dimensions and the structural elements of five types of bearings are provided. The requirements of customers on the long service life of the bearing and the reduction of the use cost are met. Belongs to a large-scale and super-large-scale bearing. It is used as special bearing for supporting roller and working roller in steel and non-ferrous metallurgy industry.

Description

Novel basket-shaped double-row tapered roller bearing with inner eight inner diameters of 498.475

The technical field is as follows: a double-row tapered roller bearing belongs to a large-scale and super-large-scale bearing. The bearing is mainly used as a special bearing for a supporting roller and a working roller on a rolling mill in the steel and nonferrous metallurgy industries. Belongs to engineering element bearings (F16C) and metal rolling (B21B).

(II) background technology:

the double-row tapered roller bearing used for mounting a rolling mill supporting roller or a working roller in the existing steel and non-ferrous metallurgy industry has the defects of short service life of the bearing, long accumulated auxiliary time consumed by roller replacement and long service life required by users for reducing the use cost because of poor working condition, high rotating speed and large borne impact load of the bearing.

Although the chinese utility model patent "eight novel double-row tapered roller bearings in basket shape" (Z L201720760876.5) discloses eight novel double-row tapered roller bearings in basket shape, it only discloses 5 models, can not satisfy the requirement of eight novel double-row tapered roller bearings long-life in more basket shapes at all.

(III) the invention content:

the utility model provides a novel double-row tapered roller bearing of eight internal diameters 498.475 in basket shape, its purpose just provides long-life double-row tapered roller bearing for the user. Provides the structural element numerical value of the novel model double-row tapered roller bearing.

The technical scheme is as follows

The novel double-row tapered roller bearing with the basket-shaped inner eight-inner diameter 498.475 is provided with two single-row inner rings 2 and a double-row outer ring 4, wherein an inner spacing ring 3 is arranged between the two inner rings, a plurality of rollers 1 are arranged between the inner ring and the outer ring, and the opposite positions of the two rows of rollers are inner eight-shaped and supported by a basket-shaped retainer 5, and is characterized in that the numerical ranges of the bearing inner diameter D, the bearing outer diameter D, the bearing inner ring assembly width B1, the bearing outer ring width C1, the roller diameter Dw, the roller length L, the number Z of rollers in each row and the half cone angle psi of the rollers of the bearing are respectively the numerical range of the number 1 in the table:

TABLE 1

In order to obtain the best effect of the double-row tapered roller bearing, the values of the bearing inner diameter D, the bearing outer diameter D, the bearing inner ring component width B1, the bearing outer ring width C1, the roller diameter Dw, the roller length L, the roller number Z and the roller half cone angle psi of the bearing with the type shown in table 1 are respectively the values of the number 1 shown in table 2, namely the values of the nominal size of the tolerance deleted in table 1.

TABLE 2

The utility model discloses beneficial effect: this novel double-row tapered roller bearing of eight internal diameters 498.475 in basket adopts the design of "antifriction bearing limit design method" that the company originally created, has confirmed the structural element numerical value of above-mentioned a type double-row tapered roller bearing, and this design has realized satisfying under design strength and the technological process requirement condition, and the roller diameter of design is the biggest, and length is the longest, and the rated dynamic load value of bearing is the highest, and the calculation life of bearing is the longest, has satisfied customer's long-life requirement, has reduced customer's use cost.

(IV) description of the drawings

Fig. 1 is a front sectional view of a novel double row tapered roller bearing with a basket-shaped inner eight inner diameter 498.475.

Figure 2 roller 1 shape view (for basket shape cage 5)

(V) detailed description of the preferred embodiments

Example 1

Eight novel double-row tapered roller bearings in a basket shape with the number 1 in table 2.

Referring to fig. 1 and 2, the roller cage is provided with two single-row inner rings 2 and a double-row outer ring 4, an inner spacer 3 is arranged between the two inner rings, a plurality of rollers 1 are arranged between the inner ring and the outer ring, and the relative positions of the two rows of rollers are internally octagonal and are supported by a basket-shaped retainer 5.

The external dimensions of the bearing are that the inner diameter D of the bearing is 498.475mm, the outer diameter D of the bearing is 634.873mm, the assembly width B1 of the bearing inner ring 2 is 177.8mm, the width C1 of the bearing outer ring 4 is 142.875mm, and the dimensions of the structural elements determined by the limit design method are that the roller diameter Dw of the bearing is 39.472mm, the length of the roller is L mm, the number Z of rollers arranged in each row in the circumferential direction is 42, and the half cone angle psi of the roller is 50'.

Claims

1. The novel double-row tapered roller bearing with the basket-shaped inner eight-inner diameter 498.475 is provided with two single-row inner rings (2), a double-row outer ring (4) and an inner spacing ring (3) arranged between the two inner rings, a plurality of rollers (1) are arranged between the inner ring and the outer ring, the relative positions between the two rows of rollers are inner eight-shaped and supported by a basket-shaped retainer (5), and the novel double-row tapered roller bearing is characterized in that the value ranges of the bearing inner diameter D, the bearing outer diameter D, the bearing inner ring assembly width B1, the bearing outer ring width C1, the roller diameter Dw, the roller length L, the roller quantity Z and the roller half cone angle psi of one row of bearings are respectively the numerical value ranges of the sequence:

TABLE 1

2. The new double row tapered roller bearing of claim 1 having a basket internal eight diameter 498.475, wherein the bearing inner diameter D, the bearing outer diameter D, the bearing inner ring assembly width B1, the bearing outer ring assembly width C1, the roller diameter Dw, the roller length L, the number Z of rollers per row and the roller half cone angle psi of a numbered bearing are the numerical values of number 1 in table 2:

TABLE 2