JPS5818151U

JPS5818151U - Bearing for tension pulley

Info

Publication number: JPS5818151U
Application number: JP1981112614U
Authority: JP
Inventors: 正文佐藤; 奥本　正典
Original assignee: 光洋精工株式会社
Priority date: 1981-07-28
Filing date: 1981-07-28
Publication date: 1983-02-04
Also published as: JPS628433Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来のものを示す縦断面図、第２図はこの考案
の実施例の縦断面図、第３図は一部の側面図、第４図は
第３図のＩＶ−ＩＶ線における断面図である。１０・・・テンションプーリー、１２・・・外筒部、１
３・・・鍔部、１４・・・内筒部、１５・・・平面部、
１６・・・プーリー基板、２０・・・軸受、２１・・・
外輪、２２・・・転動体、２３・・・軌道面、２４．２
５・・・鋼板製環状素子、２４ａ、　２５ａ−・・曲率
部、２４ｂ、２５ｂ・・・円筒部、２４Ｃ，２５Ｃ・・
・鍔部、２６・・・シール部材。Fig. 1 is a longitudinal sectional view showing the conventional one, Fig. 2 is a longitudinal sectional view of an embodiment of this invention, Fig. 3 is a partial side view, and Fig. 4 is taken along line IV-IV in Fig. 3. FIG. 10... Tension pulley, 12... Outer cylinder part, 1
3... Flange part, 14... Inner cylinder part, 15... Plane part,
16... Pulley board, 20... Bearing, 21...
Outer ring, 22... Rolling element, 23... Raceway surface, 24.2
5... Steel plate annular element, 24a, 25a... Curvature part, 24b, 25b... Cylindrical part, 24C, 25C...
- Flange, 26...Sealing member.

Claims

[Scope of utility model registration request]

(1) Consists of an integrally molded ring body with a U-shaped cross section, which has an outer cylinder part on which the belt is hung, an inner cylinder part in which the bearing is fitted, and a flat part that connects the inner and outer cylinders in the radial direction at one end. In a bearing that is fitted to a tension pulley that is integrated with a pair of steel plate pulley boards by butting their flat parts, the outer periphery is press-fitted into the inner cylindrical part of the pulley board, and the raceway surface of the rolling element is formed on the inner surface. A bearing for a tension pulley, characterized in that an outer ring is constituted by two annular elements made of steel plates that are formed, hardened and processed to a predetermined hardness.

(2) The two copper plate annular elements each include a curved part for forming the raceway surface of the rolling element and a cylindrical part continuous to the large diameter side of the curved part, and the cylindrical part of one of the elements is longer than the cylindrical portion of the other element, and the elongated cylindrical portion is press-fitted and fixed to both of the inner cylindrical portions of a pair of pulley boards, as described in claim (1). Bearings for tension pulleys.

(3) In order to fit and fix the two steel plate annular elements, a flange is formed at the end of the inward part of the pair of pulley bases so as to abut the axially outer end surface of the curved part, and the inner A bearing for a tension pulley according to claim (2), in which the radius of curvature of the outer surface of the curved portion of the two steel plate annular elements is formed to be larger than the radius of curvature of the inner surface of the bent portion between the two steel plate annular elements. .

(4) the inner surface of the flange formed on the inner cylinder of the pulley board;
A bearing for a tension pulley according to claim (2) or (3), wherein a sealing member for sealing the bearing is held between the outer end surface of the curved part of the annular element made of a steel plate.