Precision Brakes

Nexen’s Precision Brakes provide simple mounting procedures that permit both vertical and horizontal holding for installation on the non-driven end of ball screw stages.

This simple and secure installation reduces the risks associated with motor shaft/coupling failure while delivering Zero Backlash.

Ball Screw Brakes

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.)

Features

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

Applications

Medical equipment
Robotics
Material handling systems
Custom lifts
Work platforms
Dust and waterproof conditions that need IP67
Machining centers

Shaft Brakes

Nexen’s ZSE Zero-Backlash Shaft Brakes are available in a wide variety of sizes for any industry. Nexen offers an off-the-shelf, zero-backlash braking solution for shaft-holding applications.

These spring-engaged, air-released brakes offer outstanding holding for consistent, long-lasting performance.

Low Inertia
Open Through Bore
Cool Operation
Smooth Torque Transmission
True Zero Backlash Holding
Zero Backlash Coupling
Compact Housing

Nexen’s Smart ZSE Brakes (ZSES) are available with Industry 4.0 compatible smart internal sensors. These sensors provide data to maximize machine efficiency and safety.

Disengagement Verification
Internal Temperature Sensor

Applications

Assembly/inspection tables
Automotive
Pharmaceutical
Consumer goods
E-stop safety, power-off holding
Trunnion Tables

For more information
call Norman G Clark ☏ 03 9116 9200
or visit nexengroup.com

Rotary Motion Control

Experience unmatched precision and reliability with Nexen’s Precision Rotary Motion technology. Our range includes highly precise rotary drive systems, powerful rotary brakes, and mechanical torque limiters, ensuring impeccable performance with zero backlash.