Mechanical brake BSB series

ball screwzero-backlashhigh torque

Overview
Nexen Group’s Ball Screw Brake is a high-torque, spring-engaged brake mounted on the machined end of a ball screw. It serves as a primary or redundant 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 Group offers an off-the-shelf braking solution for ball screw applications. These spring-engaged, air-released brakes offer consistent, long-lasting performance. Ball screw brakes provide reliable holding in a compact package; holding force up to 125 Nm (1100 in-lbs.).

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
• Coupling allows for thermal expansion of the ball screw

Required Components

• Coupling Adapters
• 3-Way Valves

Accessories

• Control Kits
• Filters
• Flow Control Valves
• Lubricator
• Quick Exhausts/Shuttles
• Regulators

Applications

• Robotics
• Material handling systems
• Custom lifts
• Work platforms
• Environments requiring IP67 dust and waterproof protection
• Machining centers

Technical specifications

• Holding force: up to 125 Nm (1100 in-lbs.)
• Actuation: spring-engaged, air-released
• Ingress protection: IP67
• Low backlash and low inertia for precision holding
• High torsional rigidity and bi-directional braking
• Fast engagement suitable for safety holding
• Coupling: expanding shaft/clamping hub with elastomer insert for thermal expansion and high torsional stiffness
• Suitable for vertical and horizontal installations