NORD Drivesystems B1000 - Manual (Page 158)

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DI
MENSI
ONS
Dim
ensi
ons
in I
nch
es
AL
TERN
A
TE SHAFT
S SEE P
A
GE 2
39
G1000 – Subject to Change Without Notice
SK 21E + NEMA
SK 21EF + NEMA
Mounting Flange
BD (mm) AJ AK BB BF GA
5.51 (140) 4.53 3.740
+ 0.0005
- 0.0004
0.12 0.35 0.39
6.30 (160) 5.12 4.331
+ 0.0005
- 0.0004
0.14 0.35 0.39
SK 21E
SK 21EF
1.000
0.43
2.76 4.53
5.51 2.24
0.71
2.32
2.13
6.15
1.18
6.30
7.28
2.80
7.87
9.13
1.11
2.40
+0.0000 -0.0005
3/8-16
1/4 x 1/4 x 1-5/8
C
Y1
BF1
AJ1
UY1
V1
CC
BB1
U1
AK1 BD1
6.15
2.40 8.94
7.87
1.11
1.000
2.13
BD AK
GA
BB
2.60
AJ
BF
7.28
2.13
+0.0000 -0.0005
3/8-16
1/4 x 1/4 x 1-5/8
C
Y1
BF1
AJ1
UY1
V1
CC
BB1
U1
AK1 BD1
NEMA Dimensions
Type AJ1 AK1 BB1 BD1 BF1 U1 V1 UY1 Y1 C CC
56C 5.88 4.500 0.18 6.54 0.43 0.625 2.06 0.71 0.188 10.73 4.61
140TC 5.88 4.500 0.18 6.54 0.43 0.875 2.12 0.96 0.188 10.73 4.61
180TC 7.25 8.500 0.23 9.17 0.59 1.125 2.62 1.24 0.250 11.63 4.61