Specifications
Publication GMC-SG001E-EN-P — June 2001
Motors 6-71
Figure 6.23
1326AB-B7 Torque Plus Servo Motor Dimensions (Resolver and High Resolution Feedback) (1326-AB-B7xx21x-Kx)
1
If ordering a 1326AB-B7xxx-21-K7 with an optional 24V DC, 45.1 N-m (400 lb-in.) brake, add 76.2 mm (3.0 in.) to LC, LB and L (38.1 mm (1.5) to AL).
2
If ordering a 1326AB-B7xxx-21-xK7L with an optional 24V DC, 45.1 N-m (400 lb-in.) brake (IP67 rated), add 76.2 mm (3.0 in.) to LC, LB and L (38.1 mm (1.5) to AL).
Motor
1326AB-
AC
mm
(in.)
AD1
mm
(in.)
AD2
mm
(in.)
AE
mm
(in.)
AL
1, 2
(Resolver
and High
Resolution)
mm (in.)
D
mm
(in.)
DA
mm
(in.)
EA
mm
(in.)
EC
mm
(in.)
FA
mm
(in.)
FB
mm
(in.)
GB
mm
(in.)
GC
mm
(in.)
HD
mm
(in.)
B720x-21xx
173.6
(6.835)
28.7
(1.13)
28.7
(1.13)
190
(7.0867)
164.3 (6.468)
9.51
(0.374)
32.019
(1.2603)
50.8
(2)
20.6
(0.81)
10.04
(0.395)
19.23
(0.75)
26.87
(1.058)
39.49
(1.54)
207.5
(8.17)
B730x-21xx 208.7 (8.218)
B740x-21xx 253.2 (9.968)
Motor
1326AB-
L
(Resolver)
1, 2
mm (in.)
L
(High
Resolution)
1, 2
mm (in.)
LB
(Resolver)
1, 2
mm (in.)
LB
(High Resolution)
1, 2
mm (in.)
LC
1, 2
(Resolver
and High
Resolution)
mm (in.)
L-LB
mm
(in.)
O
mm
(in.)
R
mm
(in.)
T
mm
(in.)
B720x-21xx 426 (16.77) 431.8 (17) 366 (14.41) 371.9 (14.64) 324.6 (12.78)
60
(2.36)
26.9
(1.06)
3.96
(0.156)
4
(0.157)
B730x-21xx 514.9 (20.27) 520.7 (20.5) 454.9 (17.91) 460.8 (18.14) 413.5 (16.28)
B740x-21xx 603.8 (23.77) 609.6 (24) 543.8 (21.41) 549.7 (21.64) 502.4 (19.78)
L-LB
Key
HD
O
AD1 AD2
T
EC
R
GB
EA
LC
LB
L
AL
M10 x 1.50
GC
FB
AC
D
AE
DA
FA
5.8
(0.23)
Shaft Detail
Inspection Holes (4), Top and
Bottom 1/16-27 NPT Plugs
M12 x 1.75 Tapped Hole
28 (1.10) Deep Min.
Note: Dimensions are per NEMA Standards MG 7-2.4.1.3 and IEC 72-1. Shaft and pilot tolerances are per DIN 42955, N tolerance.
High-Resolution Motor End
Shaft and Pilot Tolerances
Shaft Runout 0.05 mm (0.002 in.) T.I.R.
Shaft Endplay 0.127 mm (0.005) T.I.R.
Pilot Eccentricity 0.1 mm (0.004 in.) T.I.R.
Maximum Face Runout 0.1 mm (0.004 in.) T.I.R.
Key -10 x 8 x 50 (0.39 x 0.31 x 1.97)
End-Milled Keyway (full depth) - 50.8 mm (2 in.)
Hook Detail
Motor Front End
Bell Corner Radius
38.1 (1.5)
15 mm Dia. Thru-Hole
4 required on a 215 mm Dia. B.C.
(0.590 Dia. on an 8.465 Dia. B.C.)
Mounting Bolts must be Cap Head Style
Recessed Finger and
Shaft Seal Provision
Power Input
Commutation Resolver
or High-Resolution
Output
Dimensions are in millimeters (inches).
Full Depth
Endmilled Keyway
45°
45°