A commercial vehicle front wheel hub bearing unit
A hub bearing and wheel technology, which is applied to bearing components, hubs, shafts and bearings, etc., can solve the problems of bearing centering accuracy, difficult to guarantee the axial clearance pre-tightening force, affecting the service life of the hub, long installation and maintenance time, etc. problems, to achieve the effect of eliminating the difficulty of ensuring installation accuracy, superior performance, and reducing installation costs
Active Publication Date: 2016-11-23
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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[0019] The present invention will be further described below in conjunction with the accompanying drawings.
[0020] like figure 2 , image 3 shown. Install two conical rolling bearings 01, 02 (coated with grease) with a special structure and precise matching in the inner holes on both sides of the hub unit seat 03. The feature is that the small rib end faces of the inner ring of the two bearings are extended to the middle of the seat hole. The parts are contacted and positioned with each other, and the inner side of the contact end is provided with a slot and a connecting snap ring 08 to keep the two inner rings connected; 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 face of the unit seat at the finishing outer diameter surface 07 and the end surface 06. The small end side of the hub bearing unit seat is provided with a cover 09 for sensing which is m...
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The title of the present invention is a commercial vehicle front wheel hub bearing unit. It belongs to the technical field of rolling bearings. It mainly solves the problems of complex installation process, long time and difficult installation accuracy existing in conventional wheel hub bearings. Its main features are: including the wheel hub bearing unit seat and two tapered rolling bearings; the two tapered rolling bearings are installed in the inner holes of the large and small end faces on both sides of the wheel hub bearing unit seat; the small rib end faces of the inner rings of the two tapered rolling bearings are in the middle of the seat hole There is contact at the part of the small rib, and a card groove and a connecting snap ring are provided on the inner side of the contact end of the small rib; a sealing device is installed at the outer diameter of the large rib of the two tapered rolling bearings and the inner diameter of the seat hole of the hub bearing unit; On the side of the small end face of the seat, a cover matching the outer diameter of the end face and used for induction is provided; an O-ring is provided at the inner diameter of the inner ring of the tapered rolling bearing on the small end face side. The invention is mainly used for the unitization and modularization of the front wheel hub bearing bearings of medium and heavy commercial vehicles.
Description
technical field [0001] The invention belongs to the technical field of rolling bearings. In particular, it 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 front wheel hub bearing bearings of medium and heavy vehicles in China, the conventional types such as figure 1 Shown: Two tapered rolling bearings 01, 02 are mounted back-to-back in the inner bore 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 then press the outer ring of the two tapered rolling bearings 01 and 02 against the step in the middle of the inner hole of the seat 03. The inner ring components of the roll...
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