CGI SPUR GEARHEADS User Manual
CGI, INC. • 3400 Arrowhead Drive • Carson City, NV 89706 • Tel 775.882.3422 • Fax 775.882.9599 • www.cgimotion.com
SI SERIES: SPUR GEARHEADS
NEMA DIMENSIONS
PRECISION GEARHEADS
(B).
SQ.
(J)
(K)
(I)
(A)
(L)
(H)
(G)
(F)
(E)
(D)
(C)
023SIX
034SIX
042SIX
056SIX
.047
.062
.078
.125
2.95
4.38
5.51
7.87
0.205
0.220
0.280
0.410
2.625
3.875
4.950
7.000
0.094 / #303
0.125 / #404
0.156 / #505
0.250 / #808
75
100
150
200
75
125
150
300
023SIX
034SIX
042SIX
056SIX
2.25
3.00
3.75
4.50
20/10
20/10
20/10
20/10
20
60
200
350
30
90
300
500
1.5
3.5
6.5
15.5
7.15E-04
5.35E-04
4.33E-03
6.05E-03
7.59E-04
1.52E-03
7.59E-03
4.57E-02
ALL SPECIFICATIONS SUBJECT TO CHANGE.
*Rotation references the gearhead output shaft
direction with respect to motor shaft direction.
AVAILABLE RATIOS AND SHAFT ROTATION* SPECIFICATIONS
SIZE 023 3:1 SAME SIZE 034 3:1 SAME Input RPM: 4000 Max.
5:1 SAME 5:1 SAME
10:1 SAME 10:1 SAME
15:1 OPPOSITE 15:1 SAME Minimum Efficiency: 90%
20:1 OPPOSITE 20:1 OPPOSITE
30:1 OPPOSITE 30:1 OPPOSITE
50:1 OPPOSITE 50:1 SAME Operating Temperature Range -60˚F to +250˚F
100:1 SAME 100:1 SAME
SIZE 042 3:1 SAME SIZE 056 3:1 SAME Note: Size 056 Requires a Mounting Adapter
5:1 SAME 5:1 SAME
10:1 SAME 10:1 OPPOSITE
15:1 OPPOSITE 15:1 OPPOSITE Motor Mounting Hardware Supplied
20:1 OPPOSITE 25:1 OPPOSITE
30:1 SAME 40:1 SAME
50:1 OPPOSITE
100:1 SAME
PART
NUMBER
A
PILOT
DIAMETER
(in.)
B
SQUARE
FLANGE
(in.)
C
SHAFT
LENGTH
(in.)
D
SHAFT
DIAMETER
(in.)
E
PILOT
LENGTH
(in.)
F
FLANGE
THICKNESS
(in.)
G
KEY
LOCATION
(in.)
023SIX
034SIX
042SIX
056SIX
1.498/1.500
2.873/2.875
2.185/2.187
4.498/4.500
2.25
3.25
4.20
5.75
1.00
1.25
1.50
2.00
.3745/.3750
.4995/.5000
.6245/.6250
.9995/1.0000
0.062
0.062
0.062
0.125
0.188
0.375
0.500
1.000
0.38
0.56
0.50
0.63
PART
NUMBER
H
KEY
HEIGHT
(in.)
I
HOUSING
DIAMETER
(in.)
J
BOLT HOLE
DIAMETER
(in.)
K
BOLT HOLE
CIRCLE
(in.)
KEY WIDTH/
WOODRUFF
KEY
(in.)
RADIAL SHAFT
LOADING
(LBS.)
AXIAL SHAFT
LOADING
(LBS.)
PART
NUMBER
L
GEARHEAD
LENGTH
(in.)
BACKLASH
STD/LOW
(ARC-MINUTES)
CONTINUOUS
TORQUE MAX.
(IN LBS.)
MOMENTARY
TORQUE MAX.
(IN LBS.)
GEARHEAD
WEIGHT
(LBS.)
MAX. INERTIA
REFLECTED
TO INPUT
(OZ. IN. SEC
2
)
PINION GEAR
INERTIA
(OZ. IN. SEC
2
)
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