AC Right Angle Gearmotors
Standard IK induction and RK reversible AC motors paired with GU-series right-angle gearheads — spiral bevel or worm — for compact 90-degree power transmission. Hollow- and solid-shaft output options for direct mounting on driven equipment.
Download right-angle catalog
Compact 90-degree drives.
Spiral bevel or worm
Spiral bevel preserves induction-motor efficiency at 90°. Worm trades efficiency for higher single-stage reduction and inherent self-locking.
Hollow or solid shaft
Hollow-shaft output eliminates couplings and bearings on the driven side. Solid-shaft output for traditional coupled drives.
Multiple motor variants
Choose induction (IK), reversible (RK), speed-adjustable (-R), or power-off electromagnetic-brake (-M) configurations.
Built-in thermal protector
Automatic-return thermal protector standard on most models. Heat-sink plate sized to motor wattage (135×135 to 230×230 mm).
Fan & forced-fan options
Fan-cooled (F) and forced-fan (FF) variants extend duty cycle for higher continuous loads.
Mid-gearbox extension
1:10 mid-gearbox attachable between motor and gearhead to extend reduction further; raises permissible torque to 8–60 N·m by frame.
Right-angle line data.
General specs
| Power range | 25 W, 40 W, 60 W, 90 W, 120 W, 140 W, 200 W |
|---|---|
| Frame sizes | 80 mm (size 4), 90 mm (size 5), 104 mm (size 6) |
| Voltages | 1ph 100 / 110 / 120 / 220 / 230 V (50/60 Hz); 3ph 200–230 V or 380–415 V (50/60 Hz) |
| Rated motor speed | 1250 r/min @ 50 Hz / 1550 r/min @ 60 Hz typical; 1300/1600 and 1350/1600 on larger frames |
| Rated motor torque | 165 mN·m (25 W) up to 2700 mN·m (200 W three-phase) |
| Output shaft orientation | 90° to motor axis |
| Protection class | IP20 (lead wire) / IP54 (terminal box, 25–180 W) |
| Ambient temperature | −10 to +50 °C (1ph 100 V, 3ph 200 V); −10 to +40 °C otherwise |
| Ambient humidity | ≤ 85% non-condensing |
Gearhead & output
| Available gear ratios | 7.5, 9, 12.5, 15, 18, 25, 30, 36, 50, 60, 75, 90, 100, 120, 150, 180 |
|---|---|
| Mid-gearbox | 1:10 mid-gearbox available for further reduction |
| Output speed range | ~8–240 r/min before mid-gearbox |
| Allowable output torque | Up to 80 N·m (25–90 W frames); 200 N·m (120 W on 90 mm frame); 600 N·m (120–200 W on 104 mm spiral bevel) |
Configurations
| Type | Codes | Notes |
|---|---|---|
| Spiral bevel | RC (hollow shaft) · RT (solid shaft) | Series 5GU / 6GU; preserves induction-motor efficiency at 90° |
| Worm gear | RH (hollow worm shaft) · RA (solid worm output) | Higher reduction in a single stage; inherent self-locking |
| Motor connection | Pinion shaft (lead wire) or T (terminal box) | Lead-wire IP20; terminal-box IP54 |
| Cooling / brake | F (fan) · FF (forced fan) · M (brake) | Power-off-activated brake keeps 0.05–2.0 N·m |
5K120GU spiral-bevel right-angle gearmotor
Dimensional drawing
Model number breakdown.
Motor and reducer codes pair to form the assembly. Example: 5IK40GU-CT + 5GU30RC — a 40 W induction motor on a 90 mm frame, 220–230 V / 50 Hz terminal box, paired to a 1:30 spiral-bevel hollow-shaft gearhead.
Motor code
Format: [frame][type]K[power][adj.][shaft]-[voltage][variant]
| Position | Field | Options |
|---|---|---|
| 1 | Frame size | 4 = 80 mm · 5 = 90 mm · 6 = 104 mm |
| 2 | Motor type | I = Induction · R = Reversible |
| 3 | Series | K (K series) |
| 4 | Output power | Watts (e.g. 40 = 40 W) |
| 5 | Speed-adjustable | R suffix indicates speed-adjustable |
| 6 | Gear type | GN (inline) · GU (right-angle) |
| 7 | Voltage / pole | A, B, C, D, E, H, S, S3, T, T3 (see AC Gearmotors page for full table) |
| 8 | Variant | T = terminal box · F = fan · FF = forced fan · M = brake |
Reducer code
Format: [frame]GU[ratio][output type]
| Frame | 5 = 90 mm · 6 = 104 mm |
|---|---|
| GU type | Right-angle gearhead |
| Ratio | Numerical reduction (e.g. 30 = 1:30) |
| Output type | RC = spiral-bevel hollow shaft · RT = spiral-bevel solid shaft · RH = worm hollow shaft · RA = worm solid shaft |
Where right-angle wins.
The right-angle layout shortens machine footprint dramatically versus an inline gearmotor plus separate bevel box, and lets designers mount the motor parallel to the driven shaft. Spiral bevel variants preserve high efficiency. Worm variants offer high reduction in a single stage with self-locking holding torque. Hollow-shaft outputs eliminate couplings.
- Conveyor drives
- Packaging machinery
- Food machinery
- Textile equipment
- Printing presses
- Agitators & mixers
- Material handling
- Automated assembly
Right-angle imagery.
AC Right Angle Gearmotor — Full catalog
Per-frame spec sheets and dimensional drawings for 25 W through 200 W variants, including spiral-bevel and worm options, wiring diagrams, and brake-motor parameters.