RotoPrecision Inc. - NB Precison Linear Motion - TOPBALL® Slide Bush and Slide Units

• Actuators
• Ball Splines
• Slide Bush
• Slide Guides
• Slide Screws
• Slide Shafts
• Slide Ways
• Stroke Bush
• TOPBALL® Series

• Linear Shafting
• Pre-Drilled Shafting
• Custom Shafting

• Product Interchanges

• NB Website

The NB TOPBALL® is a linear motion mechanism utilizing the rotational motion of ball elements. NB's self-aligning TOPBALL® can be designed into many different applications such as factory
automated equipment, machine tools, industrial machines, electrical equipment, optical and measuring instruments.

Higher Load Capacity and Longer Travel Life: NB's uniquely designed load plate provides circular arch contact to the ball element resulting in a greater dispersion of the load, enabling TOPBALL® to provide up to three times the load capacity therefore 27 times the travel life of conventional slide bushings.
Self Aligning Capability: Load plates are thinner at the ends to provide a pivot point at the center of the plate. The center acts as a fulcrum to compensate for any slight misalignment between the shaft and the housing bore that might be caused by inaccurate machining, mounting errors or shaft deflection.
Floating Seal: NB's unique floating seal design allows for self alignment while maintaining equal and constant contact to the shaft. Seals do not add to the overall length of the bushing allowing for more compact designs.
High Speed: TOPBALL® meets high speed requirements. The maximum speed is 180m/min.
Clearance Adjustable: TOPBALL® load plates are designed to "float" in the outer sleeve which allows for clearance between the ball elements and shaft to best suit application requirements.