Rotating ball spline

The usage characteristics and applicable scenarios of rotary roller splines are compared with flat key connections due to differences in structural forms and manufacturing processes, guiding students to summarize the characteristics of spline connections in terms of strength, process, and usage.
Milling of female rotary roller spline
Due to differences in structural form and manufacturing process, the usage characteristics and applicable scenarios of female rotary roller splines are compared with flat key connections. Students are guided to summarize the characteristics of spline connections in terms of strength, process, and usage
(1) Directly and uniformly make more teeth and grooves on the shaft or hub hole, so the connection force is more uniform.
(2) Due to the shallow groove, the stress concentration at the tooth root is relatively small, and the strength weakening of the shaft and hub is relatively small.
(3) There are many teeth and a large total contact area, which can withstand large loads.
(4) Good alignment between the components on the shaft and the shaft is important for high-speed and precision machines.
(5) High centering accuracy and good guidance are important for dynamic connections.
(6) Grinding methods can be used to improve machining accuracy and connection quality.
(7) The manufacturing process is complex and sometimes requires specialized equipment, resulting in high costs.
(8) The female rotary roller spline can adopt a perfect processing technology, with good centering between the two connected parts, and the hub part can move along the axis, ensuring easy interchangeability of the parts. Therefore, splines are suitable for connections that require high centering accuracy, transmit large torque, or frequently slip.
High rigidity
Due to the large joint angle, it has high rigidity and can be subjected to appropriate preloading depending on the situation, thus obtaining torque rigidity and moment rigidity.
Easy assembly
Due to the special design, even if the spline outer cylinder is detached from the spline shaft, the steel ball will not fall off. Therefore, assembly, maintenance, and inspection are all easy to carry out