Advantages and product features of high torque structure design for ball spline

Advantages and product features of high torque structure design for ball spline
Some knowledge about ball splines, such as structure, characteristics, and design of high and medium torque ball splines.
Ball spline is a groundbreaking linear motion system that utilizes balls installed inside the spline outer cylinder to smoothly roll and transmit torque in precision ground rolling grooves. Moreover, unlike traditional constructions, due to the ability to apply pre pressure to a single spline outer cylinder, it can effectively function in areas with excessive vibration impact loads, high positioning accuracy requirements, and high-speed motion performance. At the same time, even when used as a substitute for linear ball bushings, the rated load of ball splines is more than ten times that of linear ball bushings under the same shaft diameter, making the design very compact. Even under the action of cantilever load, torque, etc., it can be safely used and has a long service life.
Ball spline is a type of rolling rail spline. This is an innovative product that achieves greater allowable load than when using a linear shaft sleeve through the rolling of balls in the groove connected to the shaft, and can transmit torque while performing linear motion.
High torque:
The spline shaft of this rolling bead flower key has three rolling protrusions evenly distributed around the outer circumference at an angle of 120 degrees, each of which is held by two rows of load balls (a total of six rows). Pre pressure is applied through one spline shaft bushing to achieve zero clearance in the rotation direction and enhance rigidity.
Medium torque:
The spline shaft of this rolling bead flower key has 2 to 3 rolling protrusions on the outer circumference, each of which is held by 2 rows of load balls (4 or 6 rows in total), in order to apply reasonable preload and provide large load capacity in the radial and torque directions.
Gear rotating type:
This is a unit type, with gear teeth on the outer circumference of the flange, and radial and thrust needle roller bearings compactly combined in the spline shaft bushing. The most suitable torque transmission mechanism for spline shaft bushing drive.
Rotating type:
The outer circumference of the ball spline shaft bushing is directly fitted into the compact unit type ball spline of the rotating bearing.