GSW 30 HP ∅ 30 mm, strain wave gearheads Zero backlash
M 1:2
Stock program Standard program Special program (on request)
Part numbers
927301 912544 50:1 100:1 2.8 4.3 4.0 6.2 7.9 11.7 3500 3500 8500 8500 72 74 110 110 4.2 4.2 32.3 32.3 2.0 2.0 0.2 0.2 3.0 3.0 0.044 0.090 0.067 0.104 0.084 0.120 0.29 0.29 0.75 0.75 0.80 0.60 0.55 0.75 14.4 18.2 35.0 35.0
Gearhead data (provisional) 1 Reduction 2 Max. continuous torque 3 Max. intermittent torque 4 Max. overload torque 5 Max. continuous input speed Max. intermittent input speed 6 Max. efficiency 7 Weight 8 Mass moment of inertia 9 Gearhead length L1 10 Mech. positioning accuracy 11 Mech. repeatability 12 Hysteresis loss 13 Torsional rigidity C1
Nm Nm Nm rpm rpm
% g
gcm2 mm
arcmin arcmin arcmin
104 Nm/rad 104 Nm/rad 104 Nm/rad
Torsional rigidity C2 Torsional rigidity C3
14 Torque M1 Torque M2
Nm Nm Nm mNm
15 Starting torque, no load 16 Backdriving torque, no load 17 Ratcheting torque 18 Buckling torque
Nm Nm
Technical data 19 Bearing at output 20 Tilting rigidity 21 Max. tilting torque
Modular system
deep groove ball bearing BLDC Motors
0.8 Nm/arcmin 135–136_ECX FLAT 32 4 Nm 186_ECX PRIME 22 M 300 N 188_ECX PRIME 22 L 650 N 197–200_EC-i30 1416 N 218–220_ECX FLAT 32 S 1160 N221–222_ECX FLAT 32 L 5 mm 23.5 mm -40…+100 °C285–286_DCX 26 L DC Motors
22 Max. radial load 23 Max. axial load 24 Dynamic load rating 25 Static load rating 26 Distance rolling bearing center to output 27 Pitch diameter
28 Ambient temperature Additional information Explanation of the line numbers and additional information on page 358.
maxon 391
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