Pin type retainer, method of assembling pin type retainer and rollers together, and roller bearing
A technology for retainers and retainers, which is applied in the direction of rolling contact bearings, rotating bearings, bearings, etc., can solve the problems of poor assembly workability, low batch productivity, and damage to welded parts of pin-type cages, and achieve improved Workability and mass productivity, easy assembly, and the effect of ensuring high rigidity
Inactive Publication Date: 2010-03-31
JTEKT CORP
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Problems solved by technology
[0006] In the above-mentioned conventional pin-type cage, a bush is press-fitted between the inner peripheral surface of the above-mentioned conical through-hole and the outer peripheral surface of the other end of the pin, so impact and load do not concentrate on the welded portion, and it can The advantage of preventing damage to the welded part, but on the other hand, since the bushing needs to be pressed in, the assembly workability of the pin type cage deteriorates and the mass productivity decreases
[0007] On the other hand, in order to improve the assembly workability of the pin-type cage, if the front end of the other end of the pin is directly welded to the second annular body without the bushing, the rigidity around the other end of the pin will decrease, and impact and The load will be concentrated on the welded part, causing frequent breakage of the welded part
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[0037] Hereinafter, the present invention will be described in detail by way of illustration.
[0038] figure 1 It is a perspective view which shows the whole external appearance of the tapered roller bearing which is the 1st Embodiment of the roller bearing of this invention. In addition, in figure 1 , in order to clearly show the structure, a part of the tapered roller bearing is removed, and the axial section of the tapered roller bearing is shown.
[0039] This tapered roller bearing includes an outer ring 1, an inner ring 2, a plurality of tapered rollers 3 as rolling elements, and a pin-type cage 5 (hereinafter simply referred to as a cage) according to the first embodiment of the present invention.
[0040] The aforementioned outer ring 1 has an inner peripheral conical surface, and the inner ring 2 has an outer peripheral conical surface. Further, the plurality of tapered rollers 3 are arranged at intervals in the circumferential direction between the inner peripher...
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The invention provides a pin type retainer, method of assembling pin type retainer and rollers together, and roller bearing. Screw thread holes (20) circumferentially spaced from each other are formedin a first ring (10), and through holes (21) circumferentially spaced from each other are formed in a second ring (11). A screw thread section (40) and a press fitting section (42) are formed on theouter periphery of each pin (13). The minimum inner diameter of the through holes (21) in the second ring (11) is set greater than the maximum outer diameter of that portion of the pin (13) which is located nearer the screw thread section (40) than the press fitting section (42). The screw thread sections (40) of the pins (13) are threaded in the screw thread holes (20) in the first ring (10), andthe press fitting sections (42) of the pins (13) are fixed in the through holes (21) in the second ring (11) by interference fit.
Description
technical field [0001] The present invention relates to a pin-type cage, in particular to a pin-type cage suitable for roller bearings used in wind turbines or steel equipment. [0002] Furthermore, the present invention relates to a method of assembling a pin cage and a roller, and also relates to a roller bearing having the pin cage. Background technique [0003] Conventionally, a pin-type cage is described in Japanese Patent Application Laid-Open No. Sho 56-111318. [0004] The pin retainer includes a first annular body, a second annular body, and a plurality of rod-shaped pins connecting the first annular body and the second annular body, and the plurality of pins are located on the circumference of the first annular body. Configurable upwards spaced apart from each other. [0005] One end of the pin is fixed to the first annular body, and the other end of the pin is inserted into a conical through hole formed in the second annular body. A ring-shaped bush having a co...
Claims
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IPC IPC(8): F16C33/52
CPCF16C33/526F16C19/364F16C43/06Y10T29/49686F16C33/523
Inventor 宫地武志久保润一安达丈博藏下义一铃木宣哉
Owner JTEKT CORP