NFF – Service Instruction              Stromag Dessau 
                     safety in motion 
 
 
 
 
 
Brake size    2  4  6.3  10  16  25  40  63  100  160  250  400  630  1000 
Brake torque  
Nm  20  40  63  100  160  250  400  630  1000 1600  2500  4000 6300 10000 
Nom. speed  
min
-1
  5300  4900  4500  4100 3800 3500 3200 3000 2800 2200  1900  1600 1400 1200 
Moment of Inertia 
B side       
kgm
2
 
0.0004  0.00043  0.00080  0.00125 0.00340 0.00430 0.01212 0.01463 0.04171 0.14821  0.23515  0.43412 1.0161 1.5610 
Wei
ht 
k
  6.3 10.4  13  14 21 30 40 68 85,5 133  167  278 367 491
Nom. volta
e  
V DC  103  103  103  103 103 103 103 103 103 103  207  207 207 207
Nom. 
owe
 
W  89
9  90
7  113
9  110
4 115
8 136
6 212
9 227
3 277
6 353
5  367  400
9 489
6 535
5
Nom. current          
A  0,87  0,8
  1,11  1,0
1,12 1,37 2,07 2,21 2,7
3,4
  357  3,8
4,7
5,2
ir 
a
 norm. 
mm  0.6 0.6  0.6  0.6 0.6 0.6 0.6 0.6 0.6 0.6  0.6  0.6 0.6 0.6
ir 
a
 max.          
mm  1 1  1.2  1.2 1.2 1.2 1.3 1.5 1.6 1.6  1.8  1.8 1.6 1.6
 a 
mm  150  165  175  190  225  250  270  314  350  440  500  560  650  750 
 b 
mm  135  152  162  175  205  225  250  292  325  418  472  530  620  710 
 c H8 
mm  120  140  140  160  180  200  220  240  270  340  390  460  530  600 
  d max H7 
mm  25  30  40  40  45  50  60  60  80  110  120  130  140  160 
 e 
mm  53  55  55  65  76  78.5  90  96  100  200  215  240  270  300 
 f 
mm  47  80  80  65  80  90  105  120  158  220  255  280  320  330 
 g 
mm  19  33,7  33,75  38  48  62  83  86  113  125,5  133,5  168  172  182 
 h 
mm  30  33  31  26  29  30  32  32  32  33  33  33  33  33 
 i 
mm  73.5  89.6  92.8  95.3  104  121  141  145  168  182.6  191  226  225  265 
 j 
mm  20,9  28  29  29  32  39  40  45  54  On request 
  6 screws    k 
mm  M5  M6  M6  M6  M8  M8  M8  M10  M10  M12  M16  M16  M16  M20 
  l 
mm  95  110  110  123  140  150  170  200  220  On request  
 m 
mm  10.5  7.8  13  14  14  13  14.2  19.5  19  24.4  21.4  26.3  30  30 
 n 
mm  2.5  2.5  2.5  3.5  3.5  3.5  4  4  5  5.5  5  5  6  6 
 p 
mm  24  28  30  30  35  45  45  55  75  125  130  150  185  210 
 q 
mm  110  110  110  110  110  150  150  250  500  On request 
 r 
mm  115,5  128,5  128  125  151  165  179  196  238  260  290  327  364  420 
 s 
mm  8.5  10.5  10  10  10  10  10  12  10  10  10  10  10  10 
 t 
mm  123  140  150  146  168  172  184  230  255  270  280  320  340  380 
 u 
mm  179,5  198  201  216  251  276  300  343  408  On request 
 
air gap 
162