SERVO SELECTION AND DATA SHEETS
4.4.1 Servomotor Dimensional Drawings
— 4-32 —
Incremental Encoders with Reduction Gears (Model SGMM-AjC3Jj2)
• 10 W, 20 W
UL20276
18 (0.91)
L
L1
L2
127.5
9.5
(0.37)
A
0.04
A
A
0.06
φ 0.05
4
45°
6.2
(0.24)
3
(0.12)
3 (0.12)
Encoder Leads
35 (1.38)
300 (11.81) ± 30 (1.18)
Motor Leads, AWG24,
UL10095 or UL3266
300 (11.81)
±30 (1.18)
M3 tap screw,
depth: 6 (0.23)
j 25 (0.98)
16 (0.63)
(0.16)
2 × M3 tap screws, depth: 4 (0.16)
2xφ3.4 (φ0.13) dia.
3
(0.12)
(0.30)
(0.47)
18 (0.91)
(φ 0.0020)
(0.0016)
(0.0024)
(A)
(B)
(A): φ8
0
−0.009
(φ0.197
−0.0001
−0.0005
)
(B): φ20
0
−0.013
(φ0.79
0
−0.83
)
Shaft end
(with key and tap)
φ 28
(φ 1.10)
Type
L mm (in) L1 mm (in) L2 mm (in) Approx.
Motors
SGMM-
Mass (g)
Output W
(HP)
Torque
NSm
(lbSm)
Time
Rating
Rated
Speed
(min
−1
)
A1C3JA2 106.5
(4.19)
88.5 (3.48) 61 (2.4) 230
10 (0.013) 0.032
(0.007)
Continuous 3000
A1C3JB2
117 (4.61) 99 (3.9) 71.5 (2.81) 225
A1C3JC2
A2C3JA2 116.5
(4.59)
98.5 (3.88) 71 (2.8) 270
20 (0.027) 0.064
(0.014)
A2C3JA2
127 (5) 109 (4.29) 81.5 (3.21) 305
A2C3JC2
Type
Reduction Gears
SGMM-
Gear
Ratio
Torque
NSm (lbSm)
Rated Speed
(min
−1
)
Allowable Radial
Load N (lb)
Allowable Thrust
Load N (lb)
Lost
Motion
A1C3JA2 1/5 0.127 (0.029) 600 51.9 (11.67)
47.0 (10.57) 0.5
A1C3JB2 1/16 0.407 (0.092) 187.5 76.4 (17.19)
(deg)
A1C3JC2 1/25 0.636 (0.143) 120 89.2 (20.07)
A2C3JA2 1/5 0.255 (0.057) * 600 51.9 (11.67)
A2C3JB2 1/16 0.815 (0.183) 187.5 76.4 (17.19)
A2C3JC2 1/25 1.274 (0.287) 120 89.2 (20.07)
Note 1) The detector uses a 2048 P/R incremental encoder.
2) The instantaneous max. torque of the reduction gear with * is allowable max. torque of
the reduction gear. The value is not that as three times as the rated torque.
4
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