◆ Introduction to Ball Spline
TBI ball spline uses balls installed in the outer cylinder of the spline shaft to smoothly roll and transmit torque in the grinding groove. It adopts a unique contact point design with a larger contact angle (40 °), which not only has high sensitivity, but also greatly improves the load capacity. It is suitable for environments with excessive vibration impact load, high positioning accuracy requirements, and high-speed motion performance. It can also play an effective role in such environments. At the same time, even when used instead of linear ball bushings, TBI ball splines have a rated load that is more than ten times that of linear bushings with the same shaft diameter, making the design very compact. Even under cantilever loads, torques, and other effects, they can still be used and have high durability.

◆ Ball spline structure
TBI ball splines can be divided into two types: flange type SLF and flange free SLT. Due to the size of the shaft diameter, the contact path of the steel balls can be divided into 2 rows (180 °) (SLF/SLT6~20) and 4 rows (70 °) (SLF/SLT25~50). In addition, hollow shafts are also available for selection.


◆Advantages of TBI Ball Spline
(1) High load capacity
The rolling groove of the ball is precision ground and formed, and adopts Gothic 40 ° angle contact. Due to the large contact angle, it has a large load capacity in both radial and torque directions.
(2) Zero clearance in rotation direction
By using 2-4 rows of relative ball bearings with a contact angle of 40 °, the spline shaft is combined with the spline outer cylinder, and the clearance in the rotation direction can be zero by adjusting the preload method.
(3) Highly sensitive
Due to the special design of the contact point of the steel ball, it is not only highly rigid but also more sensitive, and can reduce energy waste.
(4) High rigidity
Due to the large contact angle, it has high rigidity and can be subjected to appropriate preloading depending on the situation, thus achieving high torque rigidity.
(5) Easy assembly
Due to its special design, even if the TBI ball 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.

◆TBI Ball Spline Product Display: