Introduction to the characteristics of ball spline

1. The angular impact of the ball spline can be zero
Due to the fact that the load ball column is clamped on the three convex platforms of the spline shaft from left to right, and high-precision three part grinding processing is adopted, the structure of this ball spline can make the angular impact (clearance in the rotation direction) very small. If necessary, a preload can be applied in the rotation direction of the ball spline to make the angular impact zero, and the rigidity can be improved.
2. High rigidity and positioning accuracy
Due to the large initial contact angle of the spline ball series and the use of a single spline bearing to apply preload, the initial displacement is small, resulting in high rigidity and positioning accuracy.
3. The ball spline can achieve high-speed movement and high-speed rotation
Due to the low friction during motion, a good lubricant retention structure and the use of rigid retainers can meet long-term usage requirements even when high-speed linear motion exceeds 100m/min. In addition, the distance between the load ball and the return ball in the radial direction has little effect on the center force, allowing for smooth linear motion.
4. The structure of the ball spline is compact, unlike traditional ball splines. The return ball does not need to circulate on one side of the outer circumference of the spline bearing. The outer diameter of the spline bearing is small, so the structure is compact.
5. Easy to assemble For blind holes and complex structures, when the spline sleeve is pulled out from the spline shaft, the ball will not fall off, making installation, maintenance, and inspection easy and interchangeable.
6. Linear rolling bearings suitable for heavy loads
The rolling guide surface of the ball is an R-shape with a radius almost equal to that of the ball. The ball contact area is large, and even for radial loads, it has great load-bearing performance. It also has high safety and long service life under the action of overhanging load and bending load.
7. The ball spline can change the parallel use of dual axis to single axis, which can withstand torque and radial loads. Therefore, in situations where dual axis parallel use was originally required, it can be considered to change to single axis, which is easy to assemble and reduces volume