2GN / 3GN
6W / 15W. 60×60 / 70×70 mm. Ø6 mm shaft. Induction (I), reversible (R) or torque (T) motor. Ratios 1:3–1:180.
Compact gear motors (6 W–90 W)
K-series drives for compact equipment — 6W–90W, ratios 1:3–1:180, 110/220/380V, optional brake and encoder.
6W–90WRatios 1:3–1:1801φ 110/220V · 3φ 380VBrake 25W–90W≤55 dB
Code example 5IK60RGN-CF: 90×90 frame, induction motor, K series, 60W, speed-control, GN helical shaft, 220V single-phase, fan. The code language matches common Japanese compact motors, so drawings usually swap without a redesign.
Aluminium housing, integral gearbox, lifetime brand grease, 100% copper windings, high-grade silicon steel, hard-alloy gears, TPI ball bearings, aluminium end cover.
Gearhead families (6 W–90 W)
4GN
25W volume series. 80×80 mm. Ø8 mm shaft. Ratios 1:3–1:180.
5GN
40–90W. 90×90 mm. Ø12 mm shaft. Ratios 1:3–1:180.
Options on this range
Brake from 25W, governor, encoder, fan, thermal protector, terminal box, extension lead.
Power and voltage
6W and 15W are single-phase 110V or 220V only. 120W and above are listed under standard gear motors.
| Power | Shaft | Gearhead | 1φ 110V | 1φ 220V | 3φ 380V |
|---|---|---|---|---|---|
| 6W | 6 mm | 2GN | ✓ | ✓ | — |
| 15W | 6 mm | 3GN | ✓ | ✓ | — |
| 25W | 8 mm | 4GN | ✓ | ✓ | ✓ |
| 40 / 60 / 90W | 11 / 12 mm | 5GN | ✓ | ✓ | ✓ |
How the model code is built
| Field | Meaning | Options |
|---|---|---|
| Series | Mounting size | 2 (60×60) / 3 (70×70) / 4 (80×80) / 5 (90×90) |
| Motor type | — | I induction / R reversible / T torque |
| Voltage | — | A 1φ 110V / C 1φ 220V / S 3φ 220·380V |
| Motor shaft | — | A flat / A1 key / GN standard helical / GU heavy helical |
| Options | — | F fan / FF forced fan / M brake / P thermal protector / T terminal box / Y lead |
| Ratio | — | 3–180 |
| Gearhead | — | K ear / KB square box |
Five reasons for the compact range
In stock
Wattage steps from 6W to 90W. Standard codes ship the same day.
Temperature rise
470-grade steel plus F-class 155°C wire. Motor temperature rise can stay below 23°C.
Quiet
Batch grade-6 gears, unit-by-unit noise-room test, ≤55 dB.
Options
Brake, governor, encoder, fan, thermal protector, terminal box, extension lead.
Lifetime grease
H-730-1, −50°C to +180°C. No relubrication.
Brakes
Power-off electromagnetic, 25–90W on this page, 220V single-phase. Fixed-speed three wires; speed-control five; brake versions add two yellow wires.
Speed controllers
Governors for 6W–90W motors on this page. The slower the set speed, the lower the available torque. Do not use a governor for frequent reversing or start-stop — that duty belongs on a VFD.
| Model | Form | Speed range | Typical use |
|---|---|---|---|
| US | Integral, 5-wire | 4-pole 90–1400 rpm | Economy standard duty |
| SS-22 | Remote potentiometer, 220/240V 50/60 Hz | 4-pole 90–1400 rpm | Operator station away from the motor |
| XF | Panel | 4-pole 90–1400 / 2-pole 180–2800 rpm | Built into the machine fascia |
| FP | MCU display, FWD / STOP / REV | 4-pole 90–1400 / 2-pole 180–2800 rpm | Read the speed and reverse from the panel |
Where they run
Small conveyors, packaging, food machines, mixers, medical devices, office automation, gates, textile auxiliaries. Four motion types: horizontal (belt, screw, rack), vertical (sprocket, cam), indexing rotation, and mixing.
Full output-torque tables by wattage and ratio, encoder part numbers, and the confirmed IP class for this series are issued from engineering with the quotation. Standard protection is IP55 unless the datasheet says otherwise.
Get a compact selection scheme
Send a nameplate photo or a 5IK-style code. We will confirm drop-in dimensions for the 6W–90W range.