Precision Ball Screw/Spline Low-Inertia Model BNS-V
The BNS-V is a combination product featuring a ball screw groove and ball spline groove on a single shaft, with a dedicated support bearing built directly into the outer periphery of the spline nut and ball screw nut. This ball screw/spline is capable of performing three types of motion (rotational, linear, and spiral) with a single shaft by rotating or stopping each nut.
Screw shaft diameter (mm) : 16,20,25
Types
Highlight feature tags
- Large lead
- No preload
- Rotary nut
- Rotary ball spline
- Precision positioning (ball screw)
- Large lead
- No preload
- Rotary nut
- Rotary ball spline
- Precision positioning (ball screw)
DN value : 100000
Screw shaft diameter (mm) :
16,20,25
Features
Improves cycle time of horizontal articulated robots
Customers are looking for low-inertia Z axes to improve the cycle time of horizontal articulated robots. This product is more compact and lightweight than its predecessors, achieving low inertia.
Three Features That Improve Equipment Cycle Time
Advantages of the BNS-V
Using the BNS-V for the Z axis of horizontal articulated robots allows for low inertia and weight reduction of the Z axis. This results in high-speed motion, fast starts, quick stops, and reduction of cycle times.
Product Structure
The BNS-V is a combination product featuring a ball screw groove and ball spline groove on a single shaft, with a dedicated support bearing built directly into the outer periphery of the spline nut and ball screw nut. This ball screw/spline is capable of performing three types of motion (rotational, linear, and spiral) with a single shaft by rotating or stopping each nut.
Mechanism of Motion
The BNS-V is capable of performing three types of motion (rotational, linear, and spiral) with a single shaft by rotating or stopping each nut.
1. Linear motion
Rotate ball screw nut → The shaft moves up and down (no rotation).
2. Rotary motion
Rotate both ball screw nut and spline nut → The shaft rotates in place.
3. Spiral motion
Rotate spline nut → The shaft moves up and down while rotating.
Our latest technology improves the performance of the ball screw and ball spline, making this ball screw/ spline faster than existing products.
Detailed information for each model number
Dimensional drawing/Dimensional table
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Easy product comparisonsHighlight feature -
Save items for laterreview Favorites feature
Benefit 2: Exclusive content
| Products | Contents |
|---|---|
| LM Guide | LM rail standard lengths and maximum length, tapped-hole type LM rail, frame for LM rail clamps, steel plate for LM rail clamps, etc. |
| Ball Screw | Axial clearance, maximum manufacturing length of shaft, etc. |
| Actuator | Movable part mass, etc. |
Model Number Coding
THK Online Services
Member-Exclusive Content
These contents can be accessed
after registering as a member.
Benefit 1: Useful features
-
Easy product comparisonsHighlight feature
-
Save items for laterreview Favorites feature
Benefit 2: Exclusive content
| Products | Contents |
|---|---|
| LM Guide | LM rail standard lengths and maximum length, tapped-hole type LM rail, frame for LM rail clamps, steel plate for LM rail clamps, etc. |
| Ball Screw | Axial clearance, maximum manufacturing length of shaft, etc. |
| Actuator | Movable part mass, etc. |
