Retainer special for ultra-high-speed angular contact bearing

Abstract

The invention discloses a retainer special for an ultra-high-speed angular contact bearing. The retainer is characterized in that a main body structure of the bearing retainer is mainly formed by an outer ring and an inner ring, and the outer ring and the inner ring are fixed to be an integrated structure through injection molding. The retainer comprises pockets, oblique angles, outer transition fillets and inner transition fillets, wherein the pockets are circumferentially formed in the side faces of the outer ring and the inner ring at equal intervals; the oblique angles are formed in the side faces of the outer ring and the inner ring, and the oblique angles are used for improving deformation caused by material shrinkage during injection molding of the outer ring and the inner ring; the outer transition fillets are arranged at the two sides of a pocket formed in the inner side of the outer ring; and the inner transition fillets are arranged at the two sides of the pockets formed in the inner side of the inner ring. According to the retainer special for the ultra-high-speed angular contact bearing, the novel structural design is adopted, so that the pocket structure of the retainer is optimized, rolling bodies certain displacement in the pockets when rotating, and the rotating flexibility is high; and a strength clamping structure is arranged in the retainer, so that the using effect of the retainer is improved when the bearing rotates at a high speed.

Description

technical field [0001] The invention relates to the technical field of bearings, in particular to a special cage for ultra-high-speed angular contact bearings. Background technique [0002] The main structure of the rolling bearing is mainly composed of inner ring, outer ring, rolling body and cage. The cage is used to limit the setting position of the rolling body and keep the rolling body rotating normally during the bearing transmission process. The rolling body is installed in the pocket of the cage. Inside the hole, the bearing cage mainly plays the role of evenly dividing and guiding the rolling elements, storing grease, and keeping the bearing running smoothly. However, in the field of ultra-high-speed bearings, the cage has always been the main problem affecting the running quality of the bearing. [0003] The structure and quality of the cage directly affect the vibration, noise, heat and service life of the bearing during operation. The traditional ultra-high-speed...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a special cage for ultra-high-speed angular contact bearings to solve the problem that the structure and quality of the cage directly affect the vibration, noise, heat and service life of the bearing during operation. The cage is mainly made of Bakelite structure. Due to unstable factors, it will cause problems such as abnormal noise and large vibration. In addition, the contact surface of the traditional cage and the rolling element is relatively close, and the rolling element does not have a certain amount of movement in the pocket hole. The flexibility is limited, which affects the transmission effect of the bearing

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