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Herikerbergweg 213
1101 CN Amsterdam
The Netherlands
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Kendrion N.V.
Vesta Building - 5th floor
Herikerbergweg 213
1101 CN Amsterdam
The Netherlands
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Spring Applied Brake - INTORQ BFK557

BFK557-10

Brakes are used for many applications that need to perform a holding function only. Except for the classic emergency stop situations, dynamic braking rarely occurs. Kendrion has launched a new brake series, the INTORQ BFK557, which is precisely tailored to these requirements. This series features friction linings designed for this purpose and can be used without any problems in speed-controlled motors (FI operating mode). The BFK557 also features the expected high-level emergency stopping energy of INTORQ spring-applied brakes. A friction lining which has a low tendency to stick was specially selected.

  • Fail-safe spring-applied brake
  • Flat, space saving design
  • Maintenance-free
  • Quick, easy installation
  • Holding brake with emergency stop function
  • Optimized for motors in FI operation
  • Project solution as an operating brake is possible

Technical details

Description Value
Brake size 10 
Torque 20 Nm
Torque definition M2/MK (dynamic) 
Operation mode Holding Brake 
Nominal voltage 24,103,180,205 V
Nominal power 27 W
Max. switching energy per ES 12000 J
Number of emergency stops 100 
Temperature range -20...50°C 
E-Stop rotation speed 4000 min-1
Backlash
Thermal class
IP Protection class IP00,IP55 
Weight 2,58 kg
Brake type
Armature type
Hub type
Hand release Optional 
Counter friction part Flange / Friction Disc 
PWM control possible 
Outer diameter 127 mm
Lenght 47,2 mm
Keyway 11,12,14,15,20 DIN 6885 
Pitch circle flange side 112 mm
Product Line BFK557