Engine/Bearing/771151-771173 BALL BEARING DOUBLE ROW, DEEP GROOVE

中文品名：滚珠轴承双列深槽

Series 2300–Cylindrical Bore

系列2300-圆柱孔

This design of bearing utilizes two rows of balls with the inner ring having two deep groove raceways while the outer ring has a single continuous spherical raceway.  This permits the inner and outer rings to be misaligned relative to each other through a comparatively large angle without imposing moment loads upon the balls.  This bearing is frequently used when the inner ring is to be mounted upon an adapter sleeve or when conditions in the machine make it difficult to assure accurate alignment of the inner and outer rings.  The boundary dimensions of 1200 and 1300 series are identical with those of 6200 and 6300 single row deep groove bearings.  Due to the small contact angle, the thrust capacity of these bearings is limited.  

这种轴承设计采用两排滚珠，内圈有两个深槽滚道，外圈有一个连续的球面滚道。这允许内环和外环通过相对较大的角度彼此错位，而不会对球施加力矩载荷。当内圈要安装在适配器套筒上，或者机器的条件使其难以确保内圈和外圈的精确对齐时，经常使用这种轴承。1200和1300系列的边界尺寸与6200和6300单列深沟轴承的边界尺寸相同。由于接触角小，这些轴承的推力能力是有限的。