Profile Rail Brakes
Nexen’s Safety Rated Rail Brake Series of linear profile guide rail brakes use spring force to secure the load in holding applications. Superior response time and high force for stopping and holding in e-stop and power-off situations.
Each RBB brake clamps directly onto the guide rail to provide positive braking and holding in all axes, with no effect on bearing surfaces.

Key features include:
- Large friction-facing contact area for consistent performance and low rail wear
- Ideal for power-off, e-stop, and holding applications
- Low backlash for accurate position holding
- Brake geometry is similar to linear bearing cassettes for easy installation
- Provides stiffness and eliminates vibration in linear drives
- Large clearance between brake and rail compensates for installation misalignment
- No lubrication or periodic maintenance required
- Models available to fit most common profile guide rails
- The highest spring engaged / air-released holding force on the market
- Long-rated life (B10D) of four million cycles
Brakes are available for these rail manufacturers: (Contact Nexen if your rail manufacturer is not shown.) ABBA, HIWIN, IKO, INA, LINTECH, NB, NOOK, NSK, PMI, ROCKFORD, ROLLON, SBC, SCHNEEBEERGER, EWELLIX (SKF), STAR (BOSCH REXROTH), TBI, THK, THOMSON.
Nexen’s Spring Engaged and Air Released Rail Brakes are safety rated to comply with international safety standards ISO 13849-1*. Category Level up to 4 and Performance Level up to e, can be achieved using Nexsafe™ products in recommended configuration.
Optional Operating Mode Sensor(s) are available for the Nexsafe product line and can be used to signal engagement, disengagement, or wear. By using the Operating Mode Sensors, system manufacturers can gain higher safety category ratings per ISO 13849-1.
*Size 55 and 65 Rail brakes are not safety rated
Brakes are available for these rail manufacturers: (Contact Nexen if your rail manufacturer is not shown.) ABBA, HIWIN, IKO, INA, LINTECH, NB, NOOK, NSK, PMI, ROCKFORD, ROLLON, SBC, SCHNEEBEERGER, EWELLIX (SKF), STAR (BOSCH REXROTH), TBI, THK, THOMSON.
Nexen’s Spring Engaged and Air Released Rail Brakes are safety rated to comply with international safety standards ISO 13849-1*. Category Level up to 4 and Performance Level up to e, can be achieved using Nexsafe™ products in recommended configuration.
Optional Operating Mode Sensor(s) are available for the Nexsafe product line and can be used to signal engagement, disengagement, or wear. By using the Operating Mode Sensors, system manufacturers can gain higher safety category ratings per ISO 13849-1.
*Size 55 and 65 Rail brakes are not safety rated
RBM: Manual Rail Brake
Nexen’s RBM Series of linear profile guide rail brakes use a manually actuated lever to secure the load in holding applications. With no effect on bearing surfaces, the brake provides positive zero backlash holding in all axes. Compared to pneumatic and electric rail brakes, the compact footprint allows for ease of installation.
The RBM Series is engineered for dependable performance. The RBM Series provides an industry-leading braking solution for linear profile guide rails. An unrelated, redundant safety system is recommended if personnel safety is required. Nexen’s RBM Series manual rail brakes are not safety rated.
- Easy operation. No wiring. No airlines.
- Zero backlash for accurate position holding
- The brake is compact for ease of installation
- Brakes’ engagement status is apparent via lever position
- Ideal for power-off and holding applications
- Large clearance between brake and rail compensates for installation misalignment
- Models available to fit most common profile guide rails
- Static holding cycle life over one hundred thousand cycles

Brakes are available for these rail manufacturers: IKO, NSK, THK (contact Nexen if your rail manufacturer is not shown below).
Applications
Nexen’s Profile Rail Brakes are ideal for E- stop and redundant safety braking applications.
- Gantry Axis braking
- Industrial Door Open/Close locking
- Window and Door Manufacturing
- Primary and Secondary Packaging
- Medical equipment and hospital beds
Required Components
Listed below are some of the Required Components and Accessories for Profile Rail Brakes.
- 3-Way Valves
- Adapter Cables
- Filters
- Lubricator
- Regulators
- Sensors
For more information
call Norman G Clark ☏ 03 9116 9200
or visit nexengroup.com
Linear Motion Control
Nexen’s Precision Linear Motion technology integrates high-precision drive systems and brakes, including the Roller Pinion System (RPS) and Linear Precision Brakes. This complete, zero backlash drive and brake system, combined with Rail Brakes and Rod Locks, offers unlimited options for holding or emergency stopping loads in linear applications.

Roller Pinion Racks
Nexen’s Roller Pinion System (RPS) revolutionises linear and rotary motion control, surpassing traditional rack and pinion systems with increased accuracy and efficiency.

Profile Rail Brakes
Nexen’s Linear Precision Brakes provide high clamping forces for secure holding with minimal air required for release.