UBNS Series
UBNS combines screw and spline grooves on one shaft for coordinated linear and rotary motion. Screw, spline and support-bearing ratings require separate checks.
Structure & Application Boundaries
UBNS combines screw and spline grooves on one shaft for coordinated linear and rotary motion. Screw, spline and support-bearing ratings require separate checks.
Selection Inputs
Shaft and housing envelope, nut retention / flange dimensions, shaft length, travel, radial load and load direction, torque, speed, duty cycle, accuracy, preload and lubricant/environment.
Product & Configuration
Reference product photo. Files apply only to their named configurations.
Catalog Models
| Model | Shaft d / OD D (mm) | C (N) | C₀ (N) | Details |
|---|---|---|---|---|
| UBNS1616 | 16 / 48 | 8400 | 13400 | View model → |
| UBNS2020 | 20 / 56 | 10500 | 18600 | View model → |
| UBNS2525 | 25 / 66 | 15900 | 26200 | View model → |
Data source: UVT Catalog 2024. Confirm mounting geometry, accuracy and preload against the exact drawing before ordering.
Selection Guides & CAD Requests
UBNS2020R300
Request Configuration Drawing →Guides are general reference PDFs. Request 2D / 3D CAD for your exact configuration.
Complete Model Code
Select screw/spline shaft diameter and lead, shaft length, nut arrangement, end machining and separate screw/spline accuracy codes. Confirm all suffixes against the UBNS/UNS drawing.
Mounting & Lubrication
Check alignment and mounting datums, spline/screw engagement and support-bearing loads. Obtain the series-specific lubrication and maintenance specification.
Special materials, cleanroom, vacuum and dry-running suitability require individual review.
Related Equipment
- SCARA robot Z-θ axis
- Pick-and-place with rotation
- Assembly robots