Grating angle encoder

The application discloses grating angle encoder is including the main shaft, pass the main shaft, set up in the bearing inner ring in the main shaft outside, set up in rolling element between bearinginner ring and the support ring, wherein, the support ring is used for fixing rolling element and support non rotatable part among the grating angle encoder, pass the main shaft is used for fixing bearing inner ring's bearing housing. The utility model discloses an above -mentioned technical scheme remove grating angle encoder's bearing outer ring, make into the integral type with bearing and mainpart, make the support ring except supporting non rotatable part among the grating angle encoder still plays the effect of fixed rolling element, thereby makes the utility model discloses a grating angle encoder that grating angle encoder's volume and prior art provided compares, and bulky range reduces. 本申请公开了种光栅角度编码器，包括主轴；穿过所述主轴，设置于所述主轴外侧的轴承内环、设置于所述轴承内环与支撑环之间的滚动体；其中，所述支撑环用于固定所述滚动体和支撑所述光栅角度编码器中非旋转部件；穿过所述主轴，用于固定所述轴承内环的轴承套