Pivoting support bearing integral holder and process thereof

TLDR: In this paper, an integral bearing cage of a slewing bearing is described, and the diameter of the integral cage is over 1000mm, width thereof is over 40mm, and thickness thereof is 4-8mm.

Abstract: The invention discloses an integral cage of a slewing bearing. Diameter of the integral cage is over 1000mm, width thereof is over 40mm, and thickness thereof is 4-8mm. The invention further discloses a production process of the integral bearing cage. The production process comprises the following steps: a) cutting off raw steel; b) abrasive machining on surface; c) punching round holes; d) abrasive machining on the punched round holes; e) roughly rounding, wherein, a non-equiangular rounding structure is employed for rounding, the non-equiangular rounding structure comprises a driving roller and two driven rollers, and the distance between contact points of the two driven rollers and the integral bearing cage is less than or equal to twice of the center distance between two adjacent circular holes; f) welding; and g) finely rounding. The production process can be adopted to produce large integral bearing cages, and the obtained large integral bearing cages have relatively simple integral molding and assembly process.