Product description
Kendrion INTORQ | BA 14.0225 | 05/2022
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Product description
3.1
Proper and intended usage
3.1.1
Standard applications
Kendrion INTORQ components are intended for use in machinery and facilities. They may only be used
for purposes as specified in the order and confirmed by Kendrion INTORQ. The Kendrion INTORQ com-
ponents may only be operated under the conditions specified in these Operating Instructions. They may
never be operated beyond their specified performance limits. The technical specifications (refer to Techni-
cal specifications, Page 15) must be followed to comply with the proper and intended usage. Any other
usage is consider improper and prohibited.
3.1.2
Applications with special safety requirements ("Safety Brake")
A safety certificate for the system must be provided in accordance with DIN EN ISO 13849 whenever the
Kendrion INTORQ spring-applied brakes are being used in applications that have special safety require-
ments. The BFK458-series brakes are suitable for use as service brakes, as holding brakes, and as hold-
ing brakes with emergency-stop functionality for safety applications. The safety characteristics of the
safety brake apply to systems that are designed so that 80% of the characteristic torque of the brake is
sufficient for the safety function. The selected characteristic torque of the brake must, at a minimum, com-
ply with the standard braking torque in order to meet the high safety requirements.
Please note the following conditions:
¾
Proper and intended usage of the brake as described in Standard applications, Page 10
¾
Compliance with the installation specifications in these Operating Instructions
¾
The following points are important when mounting the brake with special safety requirements:
– The material and the surface quality of the counter friction surface are listed in the table "End shield
as counter friction surface", in the chapter Design of end shield and shaft, Page 26.
– To attach the brake to the motor end shield, use screws of strength class 8.8 which are capable of
handling the tightening torque listed in the table Rated data: Screw set for brake mounted on mo-
tor / friction plate, Page 17.
– The fastening screws should be tightened evenly using a standard torque wrench, with a tightening
torque tolerance of +/- 10%.
– The following values apply for the minimum screw-in depths:
Steel: 1.0 x thread diameter
Cast aluminum: 1.5 x thread diameter
– When determining the possible screw-in depths of the fastening screws into the motor flange, the
max. adjustment (according to the table Characteristics for air gap specifications, Page 17) and
the projection of the screws when the brake is new must be taken into account.
– The recommended dimensions of the screws and the screw-in depth (including the adjustment re-
serve for rotor wear) into the mounting holes in the motor flange can be found in the table Rated
data: Screw set for brake mounted on motor / friction plate, Page 17.
