descriptions
IG30
Housing Material Metal
Output Bearing
Standard
/(Optional)
Sleeve bearing
/(Ball bearing)
Radial Load
(10 mm from face of gearbox)
≤ 3 kgf 
(6.6 lbf)
Axial Load ≤ 2.5 kgf 
(5.5 lbf)
Shaft Press
fit force
(Maximum)
≤ 10 kgf 
(22 lbf)
Radial Play ≤ 0.05 mm  (0.002 in)
Axial Play ≤ 0. 3 mm 
(0.012 in)
Backlash at
No-Load
≤ 2.5°
Φ30.0 mm
Capable of mating with the Igarashi 27 and 29 series of DC motors
For further information on this product series please click here
Dimensions (mm)
Specification
Reduction Ratio Rated Torque
(kgf-cm)
Max. Momentary Torque
(kgf-cm)
Efficiency of gearing L
(mm)
Weight (g)
(Sleeve Bearing)
1/4, 1/5 2.0  Max 6.0 80 % 23.6 79
1/14, 1/19 3.0  Max 9.0 70 % 30.0 92
1/27, 1/35 4.0  Max 12.0 70 % 30.0 92
1/51, 1/71 6.0  Max 18.0 60 % 36.4 107
1/100 8.0  Max 24.0 60 % 36.4 107
1/139 8.0  Max 24.0 60 % 36.4 107
1/189 10.0  Max 30.0 50 % 42.8 122
1/264 10.0  Max 30.0 50 % 42.8 122
1/516 10.0  Max 30.0 50 % 42.8 122
1/721 10.0  Max 30.0 50 % 42.8 122
1/939 10.0  Max 30.0 50 % 42.8 122