Four-point contact ball bearing
A four-point contact, ball bearing technology, applied in the direction of ball bearings, shafts and bearings, bearing components, etc., can solve the problems of affecting the normal use of bearings, reducing bearing accuracy, increasing the difficulty of assembly, etc., to improve friction and wear and development. Heat, reduce wear and heat, improve the effect of assembly accuracy
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[0019] See Figures 1 to 7 As shown, the four-point contact ball bearing of the present invention includes an outer ring 1, two separate inner rings 4, rolling elements 2 and a cage 3. The cage 3 is evenly distributed with pockets 31 along the circumferential direction, as shown in the figure. figure 1 As shown, 12 pockets 31 can be used, and each rolling element 2 is installed in each pocket 31 and arranged between the outer ring 1 and the two inner rings 4, so that the inner ring 4, the outer ring 1 and the rolling elements 2 are installed. The cages 3 are combined to form a bearing. The contact angle d of the four-point contact ball bearing can be 30°, or the contact angle is 35°, or the contact angle is 40° or the contact angle is 45°. Each pocket 31 on the cage 3 The inner side is provided with a lock, and the installation center size of the rolling element 2 is φ1. The aperture size of the lock is smaller than the diameter of the rolling element 2 by 0.015 to 0.05 mm. S...
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