Patent ID: 7927019
Filing Date: 2011-04-19
Classification: F03D,F05B,F16C,Y02E

Abstract:
1. A slewing bearing structure, comprising: an outer ring having first and second circumferential outer grooves formed in parallel on an inner circumferential surface of the outer ring; an inner ring provided on an inner side of said outer ring and having first and second circumferential inner grooves formed in parallel on an outer circumferential surface of the inner ring in correspondence to said first and second circumferential outer grooves of said outer ring, respectively; a first row of rolling elements provided in said first circumferential outer groove of said outer ring and said first circumferential inner groove of said inner ring; a second row of rolling elements provided in said the second circumferential outer groove of said outer ring and said second circumferential inner groove of said inner ring; and first and second side plates, wherein said inner ring is rotatable, via said first and second rows of rolling elements, around a rotation axis and relative to said outer ring, wherein said outer ring includes: wherein said first and second side plates are connected with said first and second outer ring sections, respectively, and wherein said first and second side plates provide different rigidities for said first and second outer ring sections.