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The INTORQ range of spring-applied brakes is being expanded with the addition of the BFK470 series of sealed designs. This brake has been specifically developed for application areas that place increased requirements on the degree of protection. It is a self-contained system available in three sizes, and with braking torques of 40-250 Nm. It is ideal for use in wind power plants, cranes and textile machines.

Lenze INTORQ BFK 470 Spring-Applied Brakes IP66 Degree of Protection 40-250 Nm Distributors


If you are looking for INTORQ BFK470 Brakes, please call us at (844) 331-9371 or email us at we will do our best to help you find the INTORQ BFK470-14 that you are looking for at the most competitive prices possible. If you are searching for INTORQ BFK470-16 brakes technical information (data-sheets) please use the datasheets or product selection guide page links.

BFK470 spring-applied brakes are single-disk brakes with two friction surfaces. When deenergised, several springs are used to generate the braking torque through friction locking.

The brake is released electromagnetically. During braking, the springs use the armature plate to press the rotor (which can be shifted axially on the hub) against the counter friction face.


  • Degree of protection corresponding to IP66, also available with hand release and inductive proximity switch
  • Option of mounting a rotary transducer
  • Wear can be measured when mounted
  • Can be used up to -40°C (CCV Cold Climate Version)

Fields of Application:

  • Brake motors
  • Wind turbines
  • Car wash systems
  • Cranes
  • Lift applications
  • Textile machines

When the brakes are applied, an air gap SL is present between the armature plate and the stator. The stator's coil is energised with DC voltage in order to release the brake. The resulting magnetic flux works against the spring force to draw the armature plate to the stator. This releases the rotor from the spring force and allows it to rotate freely.

A Powerful & Complete Range:

  • 3 sizes
  • Standard voltages [V DC] 24, 103, 180, 205
  • Graduated torque range from 40-250 Nm
  • Degree of protection up to IP66

The rotor with plastic sleeve reduces the rattling noises in the rotor/hub connection. At the same time, this increases the service life of this connection.


  • Hand release according to degree of protection IP66 for all sizes, both directions can be used for release
  • Noise-reduced rotor
  • Contactless proximity switch according to degree of protection IP66 carries out function monitoring
  • Non-standard voltages and bores on request
  • Pulse width modulation (PWM) Partial discharge free brake has been developed for operation with the pulse width modulated DC bus voltage of a frequency inverter Rated coil voltage UN=103V DC

Whether we have INTORQ Spring-Operated Brakes in stock in Boise, Idaho or need to ship direct from Lenze to any USA cities; ACTECHDRIVES.COM can get INTORQ BFK470-18 brake to you fast and save you some money. Our industrial factory automation supplies distributors warehouse stocks some Lenze AC Tech products enabling us to further assist you in finding the correct INTORQ BFK 470-14 brakes in the USA, Canada, or Mexico. It will be very helpful if you have the INTORQ BFK 470-16 brake part numbers ready, then our sales representatives can provide you with a pricing and availability quote for INTORQ BFK 470-18 brakes that you are looking for in seconds. If you do not have the part numbers for INTORQ BFK 470 spring operated brake, our application engineers will be able to help you figure out the part numbers and get the price quote to you as soon as possible.

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