
ULTR-B Series is the weight-optimized heavy-duty ball spline from UVT, balancing load capacity and moving mass for demanding high-speed applications. It keeps the rigidity needed for precision positioning while reducing inertia for faster acceleration.
Key features:
Optimized weight-to-rigidity ratio for high dynamic performance
High load capacity with 4-point contact ball design
Suitable for continuous high-frequency operation
Multiple mounting styles available (infinite stroke standard)
Long-life design validated under working-condition testing
Typical applications: high-speed gantries, robot axes, SMT equipment and automated production systems where speed and precision both matter.
Contact UVT for ULTR-B series specifications and engineering support.

Tell us your load, speed, stroke and environment - we reply within 1 business day with spec, lead time and a free sample plan.
Request Spec & Sample Plan