Rail Brake High Res

Rail Brake System:


Nexen’s RB 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 RB brake clamps directly onto the center of the guide rail to provide positive braking and holding in all axes, with no effect on bearing surfaces. These profile rail brakes hold position accurately by reducing drive train backlash and elasticity.


Nexen’s RB Series is engineered for dependable performance. With a revolutionary set of patented features, the RB Series provides an industry leading braking solution for linear profile guide rails. If personnel safety is required, an unrelated, redundant safety system is recommended.

Rail Brake System

  • Ideal for power-off, e-stop & holding applications.
  • Large friction facing contact area for consistent performance & low rail wear
  • Field serviceable friction facing replacement
  • No lubrication or periodic maintenance required
  • Low backlash for accurate position holding
  • Provides stiffness & eliminates vibration in linear drives
RB 15
Rail width: 15mm (0.591 in)
Holding force: 500N (112 lbs)
Backlash at full brake force: up to 0,10 mm (0.004 in)
Release pressure: 3,6 to 5,5 bar (52 to 80 psi)
Starting engagement time: 0,049 sec
RB 25
Rail width: 25mm (0.984 in)
Holding force: 1000N (225 lbs)
Backlash at full brake force: up to 0,20 mm (0.008 in)
Release pressure: 3,6 to 5,5 bar (52 to 80 psi)
Starting engagement time: 0,050 sec
RB 35
Rail width: 35mm (1.378 in)
Holding force: 1600N (360 lbs)
Backlash at full brake force: up to 0,20 mm (0.008 in)
Release pressure: 3,6 to 5,5 bar (52 to 80 psi)
Starting engagement time: 0,070 sec
RB 55
Rail width: 55 mm (2.165 in)
Holding force: 2600N (585 lbs)
Backlash at full brake force: up to 0,20 mm (0.008 in)
Release pressure: 3,6 to 5,5 bar (52 to 80 psi)
Starting engagement time: 0,225 sec
RB 20
Rail width: 20mm (0.787 in)
Holding force: 800N (180 lbs)
Backlash at full brake force: up to 0,13 mm (0.005 in)
Release pressure: 3,6 to 5,5 bar (52 to 80 psi)
Starting engagement time: 0,044 sec
RB 30
Rail width: 30mm (1.181 in)
Holding force: 1300N (292 lbs)
Backlash at full brake force: up to 0,20 mm (0.008 in)
Release pressure: 3,6 to 5,5 bar (52 to 80 psi)
Starting engagement time: 0,070 sec
RB 45
Rail width: 45 mm (1.772 in)
Holding force: 2600N (585 lbs)
Backlash at full brake force: up to 0,20 mm (0.008 in)
Release pressure: 3,6 to 5,5 bar (52 to 80 psi)
Starting engagement time: 0,080 sec
RB 65
Rail width: 65 mm (2.559 in)
Holding force: 3400N (764 lbs)
Backlash at full brake force: up to 0,20 mm (0.008 in)
Release pressure: 3,6 to 5,5 bar (52 to 80 psi)
Staring engagement time: 0,230 sec