General information, Cautions – NORD Drivesystems B1000 User Manual
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G731
General
Information
SE
K
A
R
B
G1000 – Subject to Change Without Notice
Torque Adjustment (ADJ)
The brake torque can be adjusted by changing the brake spring combinations. Ad-
ditionally, on brakes up to size BRE40, the user can can make fi ne torque adjustments
by turning the spanner nut. From the factory, the spanner nut will be tight against the
brake casing. The braking torque is adjusted by unscrewing the spanner nut a number
of clicks with a spanner wrench.
• Brake torque - The brake torque is measured with a mean friction radius of the brake pad surface
with a circumferential speed of 1m/sec (197 fpm).
• Brake torque tolerance - For different applications and operating conditions, brake torque can vary from
+40/-20% compared to the rated brake torque.
• Initial operation & wear in period - In new condition, the brake will have a reduced torque of up to
30%. In order to achieve full rated brake torque, a short break in period is required. The break in time
will vary depending on system loads.
• Setting times - The lower the brake torque, the longer the brake setting times.
• Release times - The lower the brake torque, the faster the brake release times.
CAUTIONS
Torque Spring Adjustments
# Springs Unit
BRE5
BRE10
BRE20
BRE40
BRE60
BRE100
BRE150
BRE250
BRE400
BRE800
8
[Nm]
250
400
800
[lb-ft]
184
295
590
7
[Nm]
5
10
20
40
60
100
150
[lb-ft]
3.7
7.4
14.8
29.5
44.3
74
111
6
[Nm]
187
300
600
[lb-ft]
138
221
443
5
[Nm]
3.5
7
14
28
43
70
107
[lb-ft]
2.6
5.2
10.3
20.7
31.7 51.6
79.0
4
[Nm]
3
6
12
23
34
57
85
125
200
400
[lb-ft]
2.2
4.4
8.9
17.0
25.1
42.0
62.7
92
148
295
3
[Nm]
2
4
8
17
26
42
65
[lb-ft]
1.5
3.0
5.9
12.5
19.2
31.0
47.9
Reduction of Brake Torque
Unit
BRE5
BRE10
BRE20
BRE40
Torque Reduction per Spanner Nut Click (Adjustment Step)
[Nm]
0.2
0.2
0.3
1.0
[lb-ft]
0.15
0.15
0.22
0.74
Lowest Torque Setting with Spring Removal
and Spanner Nut Adjustment
[Nm]
0.8
1.6
4.4
5
[lb-ft]
0.59
1.18
3.25
3.69
Mod
?
When Ordering the Torque Adjustment option
specify ADJ Nm