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01234 753201

Clutches & Brakes Spring applied brakes Modular spring applied brakes 
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sales@techdrives.co.uk

01234 753201

MODULAR SPRING APPLIED BRAKES INTORQ BFK458

BRAKES WITH ELECTROMAGNETIC RELEASE 2 TO 600NM

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The BFK458 modular system of spring applied brakes is world class and proven in thousands of different machines with torques from 2 to 600Nm.  High quality construction with long lasting materials suits use in all types of safety sensitive applications.  A cold-climate version is available for extreme ambients and this is used in wind turbines.  For mechanical handling there is a long-life variant that can achieve more than 10 million operations.  Nine sizes with CSA and UL approval are available for operation with dc voltages from 24 to 205V.

All the options:  mounting options include friction plate, mounting flange and terminal box.  Functional options are manual release, limit switches, long life, double safety brake and low noise.

Torque adjustment can be achieved with the brake type BFK458E which has an adjustment ring that acts on the inner springs.  Typically this can reduce the torque by up to 40%.  The brake type BFK458N leading to slightly lower prices and easier connection to parts such as techos.

Models BFK458-L available on sizes 06 to 12 are long-life versions that increase the number of available cycles from 1 million to 10 million.

A cold climate version (CCV) is available on all sizes to suit an ambient temperature range -40oC to +40oC.

Enclosure options are IP54, external seal or cover.

Brake rectifiers are available.

Brakes are designed for dry running and brake torque can be adjusted (type E).

Where the duty is mainly static holding torques, rated torques can be increased to a maximum by factory modification of the springs.

CAD Drawings - 2D-DXF and 3D-STP files are available on request.

sales@techdrives.co.uk

01234 753201

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Brake size
BFK 458

Min torque Nm

Rated torque
Nm

Max
torque
Nm

Body
dia
mm

Max bore mm

6

2

4

6

87

15

8

4

8

12

105

20

10

7

16

23

130

20

12

14

32

46

150

25

14

25

60

80

165

30

16

35

80

125

190

38

18

65

150

235

217

45

20

80

260

400

254

50

25

175

400

600

302

70

Data for response times, maximum permissible energy per stop, stopping calculations and electrical connections are given in the catalogue.

modular spring applied brakes intorq modular spring applied brakes intorq