This is a unit with gear machining on the flange outer circumference and a bearing assembled in the nut section. It is ideal for a torque transmission mechanism driven by a spline nut.
The rotary ball spline is a unit type where gear machining is done on the outer peripheral part of the LBR-shaped flange, and radial and thrust bearings are compactly combined in the spline nut section.
The ball rows are held in a way that allows them to move in a circular motion, aligned by a special synthetic resin retainer, ensuring that the balls do not fall out even when the spline shaft is removed.
【Angular Backlash "Zero"】
Due to the structure where three rows of rolling protrusions are evenly distributed around the outer circumference of the spline shaft, the ball rows are pinched, allowing for preloading to be applied, which eliminates backlash in the rotational direction and increases rigidity.
【Compact Design】
The structure combines radial and thrust bearings compactly in the spline nut section, allowing for a compact design.
【High Rigidity】
By applying a suitable preload with a large contact angle, high torque rigidity and moment rigidity can be achieved. Additionally, the needle bearings in the support section allow for strong support of the nut against radial loads, enhancing rigidity.
【Optimal for Torque Transmission of Spline Nut Drive】
The support bearings enable rigid support of the nut, making it optimal for torque transmission in spline nut drives.
