Construction of Ball Spline
A ball spline utilizes balls installed within the spline sleeve (spline nut). These balls circulate and roll within precisely ground grooves on the spline shaft, enabling smooth linear rolling and torque transmission simultaneously. The ball spline and the spline shaft are designed and processed with different numbers of grooves and at different angles as contact points.
The spline sleeve consists of six components: a main cavity made of bearing steel, balls, plastic turning passages, dust covers, key pins, and screws. The cavity is fabricated with different numbers of ball tracks according to its size, typically divided into 2-row, 4-row, and 6-row types. Generally, the more rows there are, the higher the precision.
The spline shaft is a high-straightness, smooth shaft. It is processed with different numbers of grooves according to the corresponding number of ball rows in the spline sleeve. The higher the straightness and roundness, the higher the precision.
1. Distinction by Shape:
Straight Cylinder Ball Spline
Round Flange Ball Spline
Square Flange Ball Spline
2. Distinction by Integration:
Integrated Ball Spline
Rotating Nut Ball Spline
3. Distinction by Shaft Diameter:
Miniature Ball Spline (for light loads and torques)
Large Shaft Diameter Ball Spline (for medium and high loads and torques)
4. Distinction by Stroke:
Infinite Stroke Ball Spline
Finite Stroke Ball Spline
For high-precision ball splines, we have a substantial stock of the finished product to ensure a short lead time, but we can also provide customization according to specific requirements.
