Product Announcement from THK America, Inc.
Advantage of Caged Ball Screw
The ball retainer prevents friction between screws and accompanying heat, enabling superior high-speed performance. On the return, balls are scooped up virtually tangentially, providing a problem-free ball trajectory and an ideal cycle.
The ball retainer situated between the balls prevents noise caused by balls colliding with one another. On the return, balls are scooped up in a virtually straight line, eliminating noise from balls colliding with the return tube.
Long-term maintenance-free performance
The ball retainer holds in lubricating fluid, enabling long-term maintenance-free performance.
Superior sliding ability
The ball retainer situated between the balls eliminates friction between balls, greatly improving torque characteristics. Precompression torque changes are minimized, providing superior sliding ability.
HBN Series - Retainer-equipped high-load-bearing ball screw High-load-bearing capacity
SBN Series - Retainer-equipped high-speed ball screw High-speed capability: 130,000 DN
SBK Series - Retainer-equipped high-speed ball screw structure High-speed capability: 160,000 DN