Catalogues
Click Here
(32 MB)
Quick Links
• NB Main Index
• Features and Benefits
Product Range
• Actuators
• Ball Splines
• Rail & Support Assemblies
• Slide Bush
• Slide Screws
• Slide Shafts
• Slide Ways
• Stroke Bush
• TOPBALL®
• TOPBALL® Ultimate
Related Products
• Linear Shafting
• Pre-Drilled Shafting
• Custom Shafting
Engineering
Useful Tools
Connect with NB Linear
NB Precision Linear Motion Products: TOPBALL® Series
TOPBALL® Series
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.
Advantages of the TOPBALL® Series
-
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.
| TOPBALL® Series | |||
 |
 |
 |
 |
| Bearing Closed TK (Metric) |
Single Closed TKA (Metric) |
Double-wide Closed TKA-W (Metric) |
Bearing Closed TW (Inch) |
 |
 |
 |
 |
| Single Closed TWA (Inch) |
Double-Wide Closed TWA-W (Inch) |
Single Adjustable TWJ (Inch) |
Double-Wide Adjustable TWJ-W (Inch) |
 |
 |
 |
 |
| Bearing Open TK-OP (Metric) |
Single Open TKE (Metric) |
Double-Wide Open TKE-W (Metric) |
Single Open, Adjustable TKD (Metric) |
 |
 |
 |
 |
| Double-Wide Open, Adjustable TKD-W (Metric) |
Bearing Open TW-OP (Inch) |
Single Open, Adjustable TWD (Inch) |
Double-Wide Open, Adjustable TWD-W (Inch) |
Product Interchanges
 Interchange:TOPBALL®TW (Inch) and TK (Metric) (109 KB) |
|
Interchange: TOPBALL® TW Units (129 KB) |
For any additional information or
for immediate assistance,
please contact
Application Support.
