DCB Series 8 :
 
Dimensions, Weight, Inertia and Alignment
 
COUPLING SIZE 835.5
SAE21		 845.5 845.5
SAE21		 855.5 855.5
SAE21		 826.5 836.5 846.5 827.5 837.5 847.5 857.5 828.0 838.0
DIMENSION
( mm )		 A 673.1 660 673.1 660 673.1 785 785 785 890 890 890 890 940 940
B - 514 - 584 - 357 523 605 414 606 701 796 440 644
C 6 6 6 6 6 7 7 7 8 8 8 8 8  8
D - 219 - 219 - 175 258 258 203 299 299 299 216 318
D1 219 289 289 359 359 175 258 340 203 299 394 489 216 318
E - 275 - 275 - 325 325 325 380 380 380 380 395 395
F 641.3 625 641.3 625 641.3 740 740 740 845 845 845 845 895 895
G 585 585 585 585 585 690 690 690 795 795 795 795 845 845
J 18 18 18 18 18 25 25 25 25 25 25 25 25 25
K 15.5 15.5 15.5 15.5 15.5 17.5 17.5 17.5 21 21 21 21 21 21
L 241 311 311 381 381 200 283 365 231 327 422 517 245 345
Q 8 8 8 8 8 8 8 8 8 8 8 8 8 8
R M16 M16 M16 M20 M16 M20 M20 M20 M20 M20 M20 M20 M20 M20
S 12 24 12 24 12 12 24 24 16 32 32 32 16 32
T - M20 - M20 - M20 M20 M20 M20 M20 M20 M20 M20 M20
U 17 17 17 17 17 21 21 21 21 21 21 21 21 21
MAX. X - 172 - 172 - 205 205 205 240 240 240 240 250 250
MAX. Y 172 172 172 172 172 205 205 205 240 240 240 250 250 250
MAXIMUM SPEED (rpm) 1800 1800 1800 1800 1800 1490 1490 1490 1315 1315 1315 1315 1240 1240
WEIGHT (3)
( kg )		 W1
W2
W3
W4		 94.1
139.8
-
37.3		 116.9
171.1
101.8
35.6		 116.9
173.2
-
37.3		 139.6
204.5
101.8
35.6		 139.6
206.6
-
37.3		 160.4
167.9
146.8
56.5		 211.5
221.8
179.4
56.5		 261.9
274.9
179.4
56.5		 156.3
252.6
207.9
80.4		 232.8
335.7
259.1
80.4		 308.6
418.0
259.1
80.4		 384.6
500.3
259.1
80.4		 191.8
294.5
236.0
94.0		 287.2
393.0
294.7
94.0
INERTIA  (3)
( kg m2 )		 J1
J2
J3
J4		 2.057
9.421
-
2.45		 2.747
11.46
3.36
2.26		 2.747
11.66
-
2.45		 3.437
13.68
3.36
2.26		 3.437
13.88
-
2.45		 3.136
15.72
8.32
5.09		 4.743
20.7
38.95
5.09		 7.546
25.67
8.95
5.09		 6.262
30.77
14.5
9.33		 9.359
41.06
15.7
9.33		 12.48
51.15
15.7
9.33		 15.58
61.34
15.7
9.33		 8.624
40.36
18.0
12.2		 13.00
54.15
12.2

ALLOWABLE MISALIGNMENT (2)
RADIAL ( mm )
AXIAL ( mm )
CONICAL ( degree )

3.0
3.0
0.6		 3.0
3.0
0.6		 3.0
3.0
0.6		 3.0
3.0
0.6		 3.0
3.0
0.6		 3.5
3.5
0.6		 3.5
3.5
0.6		 3.5
3.5
0.6		 4.0
4.0
0.6		 4.0
4.0
0.6		 4.0
4.0
0.6		 4.0
4.0
0.6		 4.0
4.0
0.6		 4.0
4.0
0.6
 
1) For operation above 80% of the declared maximum coupling speed it is recommended that the coupling is
dynamically balanced.
2) Installations should be initially aligned as accurately as possible. In order to allow for deterioration in alignment over time it is recommended that initial alignment should not exceed 25% of the above noted data. The forces on the driving and driven machinery should be calculated to ensure that these do not exceed the manufacturers allowables.
3) Weights and inertias are based on the minimum bore size.
 
 
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