Front wheel hub bearing unit for commercial vehicle
A wheel hub bearing and wheel technology, applied in the direction of bearing components, wheel hubs, shafts and bearings, etc., can solve the problems of bearing alignment accuracy, axial clearance and pre-tightening force, affecting the service life of the wheel hub, long installation and maintenance time, etc. problems, to achieve the effect of eliminating the difficult guarantee of installation accuracy, superior performance, and reducing installation costs
Active Publication Date: 2012-01-18
XIANGYANG AUTOMOBILE BEARING CO LTD
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Problems solved by technology
[0004]The installation process of the above conventional hub bearings is complicated, and requires skilled and professional tools, equipment and testing methods for installers; many related parts need to be disassembled during installation , long installation and maintenance time, heavy workload, and high labor costs; installation requires high installation accuracy, especially the alignment accuracy, axial clearance, and pre-tightening force of the two bearings are not easy to guarantee, which seriously affects the hub service life
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[0020] The present invention will be further described below in conjunction with the accompanying drawings.
[0021] Such as figure 2 , image 3 shown. Two tapered rolling bearings 01 and 02 (coated with grease) with special structure and precise matching are installed in the inner holes on both sides of the hub unit seat 03. The feature is that the end faces of the small ribs of the inner rings of the two bearings extend to the middle of the seat hole The parts are in contact and positioned with each other, and a card slot and a connecting snap ring 08 are provided on the inner side of the contact end to keep the two inner rings in a connected state; There are two sealing devices 04, 05 between the inner diameters; the hub unit is mainly connected with other parts 14, 13, 15 through the screw holes on the large end surface of the unit seat at the finished outer diameter surface 07 and the end surface 06. On the small end side of the hub bearing unit seat, there is a cover...
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The invention discloses a front wheel hub bearing unit for a commercial vehicle, belonging to the technical field of rolling bearings and mainly solving the problems of complex mounting process, long time, low possibility of ensuring mounting precision and the like existing in a traditional wheel hub bearing. The front wheel hub bearing unit is mainly characterized by comprising a wheel hub bearing unit seat and two tapered roller bearings, wherein the two tapered roller bearings are arranged in inner holes on the large end face and the small end face of the wheel hub bearing unit seat; small flange end faces of inner rings of the two tapered roller bearings are in contact with the middle part of a seat hole; a clamping groove and a connecting clamping ring are arranged at the inner side of the contact end part of each small flange; sealing devices are respectively arranged at the outside diameter parts of large flanges of the two tapered roller bearings and the inside diameter part of the seat hole of the wheel hub bearing unit; a cover which is matched with the outside diameter of the end face and is used for inducting is arranged at the small end face side of the wheel hub bearing unit; and an O-shaped sealing ring is arranged at the inside diameter part of the inner ring of the tapered roller bearing at the small end face side. The invention is mainly used for blocking and modularizing the front wheel hub bearing units of medium and heavy commercial vehicles.
Description
technical field [0001] The invention belongs to the technical field of rolling bearings. Specifically relates to an automobile front wheel hub bearing unit mechanism, which is used for the unitization and modularization of the front wheel hub and its bearings of medium and heavy commercial vehicles. Background technique [0002] At present, the installation and use of the front wheel hub bearings of medium and heavy vehicles in China, the conventional types are as follows: figure 1 Shown: two tapered rolling bearings 01, 02 are installed back to back in the inner hole of the hub seat 03. [0003] The installation process of the two tapered rolling bearings is as follows: first press the outer rings of the two tapered rolling bearings 01 and 02 into the inner hole of the hub seat 03 from both sides, and press the outer rings of the two tapered rolling bearings 01 and 02 into the inner hole of the hub seat 03, and press the two tapered rolling bearings against the middle st...
Claims
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IPC IPC(8): F16C35/063F16C33/78B60B27/00
Inventor 张雷陈祖华曾志鹏金战李信波
Owner XIANGYANG AUTOMOBILE BEARING CO LTD