Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Hub unit bearing

A wheel hub unit and bearing technology, which is applied in the direction of wheel bearings, bearings, hubs, etc., can solve the problems of low degree of freedom, increased processing cost, and inability to fully ensure the fitting strength, so as to maintain the strength and ensure the fitting strength. Effect

Active Publication Date: 2011-08-03
NSK LTD
View PDF9 Cites 25 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0023] However, in the case of such a structure, it is necessary to form the bulging portion 32 on the cover 17b, so the material constituting the 17b needs to use a material with high ductility, which reduces the degree of freedom in material selection and increases the processing cost. s reason
In addition, there is a problem that the cover 17b made of a material with high ductility cannot sufficiently secure its fitting strength with respect to the outer ring member 2.
Therefore, it can be seen that it is difficult to implement this structure in reality

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Hub unit bearing
  • Hub unit bearing
  • Hub unit bearing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0077] The first example of embodiment

[0078] Figure 1 to Figure 10 A first example of an embodiment of the hub unit bearing of the present invention is shown. The hub unit bearing 33 of this example is the hub unit bearing that drive wheel is used, as figure 1 As shown, the hub unit bearing 33 includes: an outer wheel member 34; a hub 35 as an inner wheel member; a plurality of balls 36 as rolling elements; sealing devices 37a, 37b; a rotation speed detection device 38;

[0079] The above-mentioned outer wheel member 34 is a stationary wheel, which is embedded in a holding hole 41 of a steering knuckle 40 fixed on the vehicle body (not shown), and a stationary side flange 42 provided on the outer peripheral surface of the outer wheel member 34 is fastened by bolts 43 . It is fixed on the steering knuckle 40 , so that the outer wheel member 34 is combined and fixed on the steering knuckle 40 .

[0080] In addition, the hub 35 is a rotary wheel and is formed by combining...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Provided is a hub unit bearing which permits securing of the fitting strength of a cover (39) with respect to an outer race member (34) and which has a structure that is not susceptible to intrusion of foreign matter to the inside through a drain hole (73) that is provided to the cover (39). The cover (39), which is used to cover the axially inner end of a hub unit bearing (33), comprises a disk section (65), a small diameter tubular section (66) and a large diameter tubular section (67) that are formed bending from the outer circumferential section of this disk section (65) toward the axial direction. Particularly, in the small diameter tubular section (66), there is formed an cut-and-bent portion (71) which is created by cutting and bending a portion of the small diameter tubular section (66) in the radially inward direction. A drain hole (73) which allows the inside and outside of the cover (39) to communicate with each other is provided to the portion which is separated by this cut-and-bent portion (71) from the small diameter tubular section (66).

Description

technical field [0001] The present invention relates to a hub unit bearing for rotatably supporting a wheel of an automobile with respect to a suspension device. More specifically, the present invention relates to a hub unit bearing provided with a cover that covers the axially inner ends of an outer wheel member and an inner wheel member, prevents foreign matter from entering the inner space, and has a Drain holes for foreign matter in the space. Background technique [0002] In order to rotatably support a wheel of an automobile with respect to a suspension device, a hub unit bearing composed of a rolling bearing assembly is used. In recent years, it has been widely used to install a rotation speed detection device for detecting the rotation speed of the wheel on the hub unit bearing of this kind to control the anti-lock braking system (ABS: Anti-locked Braking System) or the traction control system (TCS: Traction Control System). [0003] As an example of such a hub un...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B60B35/18B60B35/02B60B35/14F16C19/00F16C33/76F16C33/78F16C41/00G01P3/487
CPCF16C33/723B60B35/02B60B2900/211B60B2380/75F16C19/186F16C19/00F16C41/00B60B2380/32B60B2900/321F16C33/7896G01P3/487B60B35/18B60B35/14B60B2900/5114F16C33/78B60Y2200/11B60B27/0005F16C2326/02F16C41/007B60B27/0073F16C33/805B60B2380/12G01P3/443B60B27/0068B60B2380/73B60B2380/90B60B2900/5112F16C19/08F16C33/76F16C35/042
Inventor 中村雄二金子吉男
Owner NSK LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com