Nexen’s Ball Screw Brake is a high-torque, spring-engaged brake acting on the machined end of a ball screw. It serves as a primary or redundant safety brake to prevent back driving if a power loss or mechanical defect occurs in the driveline.

The low backlash and coupling combination provides a high degree of accuracy for holding the ball screw position. An expanding shaft/clamping hub coupling connects the brake shaft to the end of the ball screw. The required coupling comes with an elastomer insert with high torsional stiffness.

Selection
Nexen offers an off-the-shelf braking solution for any ball screw application. These spring-engaged, air-released brakes eliminate the performance problems associated with electrical brakes for consistent, long-lasting performance.

Ball Screw Brakes provide reliable holding in a compact package
During a power loss, the motor has no holding torque allowing the ball screw to back drive and the load to drop. Ball screw brakes connect to the machined end of the ball screw to prevent back driving, load drops, and equipment damage during a power loss. Holding force up to 125 Nm (1100 in-lbs.)

Nexen's Ball Screw Brake Features

Low backlash for precision holding
Spring engaged, air released
Low inertia
High torsional rigidity
Bi-directional braking
Fast engagement
Meets IP67 dust and waterproof standards
Operates in vertical and horizontal applications
Allows for thermal expansion of ball screw

Parameter Name	Parameter Value
Type	disc
Operation	spring, mechanical
Other characteristics	safety high-torque bi-directional waterproof ball screw
Torque (Nm)	0 - 125
Rotational speed (rpm)	10000 - 10000