Ball retainer with an inner seal for a linear guide apparatus
US5492412A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 27, 1995 |
| Grant date | Feb 20, 1996 |
| Priority date | — |
| Expiry date | Apr 27, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C29/0642
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A linear guide apparatus provides a guide rail, a slider, balls, and a ball retainer having a core bar, ball holding portions and inner seal portions. The core bar, which is formed in a rectangle shape, has stopper portions at longitudinal ends and is coated with a rubber or synthetic resin member. The stopper portions project in an axial direction of the linear guide apparatus. The ball holding portions are arranged along both side edges of the ball retainer. The inner seal portions contact with at least an upper surface of a guide rail out of the upper surface of the guide rail and an inner surface of the slider confronting the upper surface of the guide rail. The ball retainer serves both functions of holding balls and sealing the balls.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.