Lenze MDxMA-MHxMA-MFxMA-MDERA-MHERA Three-phase AC motors - Manual (Page 51)

Maintenance/repair
Installation of a spring−applied brake
Brake characteristics
8
l
51 BA 33.0005−EN 2.0
8.4 Installation of a spring−applied brake
8.4.1 Brake characteristics
Type s
Lürated
+0.1 mm
−0.05 mm
s
Lümax.
Service brake
s
Lümax.
Holding
brake
Max. adjustment,
permissible wear
path
Rotor thickness Tightening
torque of the
fixing screws
[ mm ] [ mm ] [ mm ] [ mm ] min. 1) [mm] max. [mm] [Nm]
BFK458−06
0.2 0.5 0.3 1.5
4.5 6.0 3.0
BFK458−08 5.5 7.0 5.9
BFK458−10 7.5 9.0 10.1
BFK458−12
0.3 0.75 0.45
2.0 8.0 10.0 10.1
BFK458−14 2.5 7.5 10.0 24.6
BFK458−16 3.5 8.0 11.5 24.6
BFK458−18
0.4 1.0 0.6
3.0 10.0 13.0 24.6
BFK458−20 4.0 12.0 16.0 48.0
BFK458−25 0.5 1.25 0.75 4.5 15.5 20.0 48.0
Tab. 2 Characteristics of the INTORQ BFK458 spring−applied brake
1) The dimension of the friction lining allows for adjustment of the brake for at least five times.
8.4.2 Installation of the brake
(
Stop!
ƒ Check the state of the end shield (15). It must be free from oil and grease.
3
4
15
K14.0502/8
Fig. 3 Assembly of the rotor
3 Rotor 4 Hub 15 Endshield
1. Push the rotor (3) onto the hub (4) and check whether it can be moved by hand
(Fig. 3).
(
Stop!
Please note the following for the version "brake with shaft seal in adjuster
nut":