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Top Page > Low-Inertia Ball Screw / Spline BNS-V/NS-V

Low-Inertia Ball Screw / Spline BNS-V/NS-V


Enables high-speed motion, fast starts and quick stops.

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Improves takt time of horizontal articulated robots

Customers are looking for low-inertia Z axes to improve the takt time of horizontal articulated robots. This product is more compact and lightweight than its predecessors, achieving low inertia and helping to optimize designs.

 


Lower inertial moment for improved takt times

 

Comparison between new model BNS-V and existing model BNS-A


 

Provides Both Precision and Speed


Application example: Scara- Robot

 

Reducing the nut's outer diameter while keeping the shaft the same size lowers the weight and can shorten takt time.

Using a smaller and lighter end shaft and peripheral device reduces the load on the motor, which reduces the amount of heat generated and enables equipment to run even longer than before.

 

Product Structure

The BNS-V is a combined product with a ball screw nut and ball spline nut inserted directly into the dedicated ball screw and ball spline grooves on the shaft. This ball screw/spline can perform three types of motion (rotational, linear, and spiral) with a single shaft by rotating or stopping each nut.


 

The BNS-V can perform 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