4RK 80mm 25W Micro AC Reversible Motor
· High-efficiency Induction Core (Continuous Rating)
· Precision Ground Parallel Shaft Gearbox
· Reliable Class B Insulation & IP20 Protection
· Available in Single-Phase (110V/220V) & Three-Phase (220V/380V)
■ Motor Model Numbering System
| Item | Technical Specification & Meaning |
|---|---|
| ① Frame Size | 0: 42mm | 2: 60mm | 3: 70mm | 4: 80mm | 5: 90mm | 6: 104mm |
| ② Motor Type | I: Induction | R: Reversible | T: Torque |
| ③ Series | K Series |
| ④ Output Power | 40: 40W (Nominal output power wattage) |
| ⑤ Speed Control | R: Speed Adjustable | None: Fixed Speed |
| ⑥ Shaft Type | GN/GU: Pinion Shaft | A: Round | A1: Keyway |
| ⑦ Voltage & Poles |
A:Single-phase(1Φ) 110V 50/60Hz4P
B:Single-phase(1Φ) 110V 50Hz2P
C:Single-phase(1Φ) 220/230V 50Hz4P
D:Single-phase(1Φ) 220V 50Hz2P
E:Single-phase(1Φ) 110V/120V 60Hz4P
H:Single-phase(1Φ) 220/230V 60Hz4P
S:Three-phase(3Φ) 200/220/230V 50/60Hz4P
S3:Three-phase(3Φ) 380/400/415V 50/60Hz4P
T:Three-phase(3Φ) 200/220/230V 50/60Hz2P
T3:Three-phase(3Φ) 380/400/415V 50/60Hz2P
|
| ⑧ Accessories | T: Terminal Box | F/FF: Fan | M: Brake |
■ Reducer Model Numbering System
| Item | Technical Specification & Meaning |
|---|---|
| ① Gearhead frame size | 4: 80mm | 5: 90mm | 6: 104mm |
| ② Type of pinion | GN : GN type gear | GU : GU type gear |
| ③ Gear ratio |
(e.g.) 50 : Gear ratio of 1 : 50 10x denotes the decimal gearhead of ratio 1 : 10 |
| ④ Type of output shaft |
RH : Hollow worm shaft RA : Worm output shaft RC : Spiral bevel hollow shaft RT : Spiral bevel output shaft |
■ Specs Continuous Rating
|
Model Upper: Pinion Shaft / Below: Round Shaft |
Output power W |
Voltage V |
Frequency Hz |
Current A |
Starting Torque mN.m |
Rated Torque mN.m |
Rated Speed r/min |
Capacitor μF |
|
|---|---|---|---|---|---|---|---|---|---|
| Lead Wire Type | Terminal Box Type | ||||||||
| 4RK25GN-A | 4RK25GN-AT | 25 | 1ph 100 | 50 | 0.59 | 160 | 200 | 1250 | 10 |
| 60 | 0.69 | 140 | 165 | 1550 | |||||
| 4RK25GN-E | 4RK25GN-ET | 25 | 1ph 110 | 60 | 0.45 | 140 | 165 | 1550 | 8.0 |
| 1ph 120 | 0.50 | ||||||||
| 4RK25GN-C | 4RK25GN-CT | 25 | 1ph 220 | 50 | 0.29 | 140 | 200 | 1250 | 2.2 |
| 1ph 230 | 0.30 | 160 | |||||||
| 4RK25GN-H | 4RK25GN-HT | 25 | 1ph 220 | 60 | 0.35 | 140 | 165 | 1550 | 2.2 |
| 1ph 230 | |||||||||
■ Allowance Torque Unit : Upside(N.m)/Belowside(kgf.cm)
| Type Motor/Gearhead |
Gear Ratio | 7.5 | 9 | 12.5 | 15 | 18 | 25 | 30 | 36 | 50 | 60 | 75 | 90 | 100 | 120 | 150 | 180 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Speed r/min |
50Hz | 200 | 166 | 120 | 100 | 83 | 60 | 50 | 41 | 30 | 25 | 20 | 16 | 15 | 12 | 10 | 8 | |
| 60Hz | 240 | 200 | 144 | 120 | 100 | 72 | 60 | 50 | 36 | 30 | 24 | 20 | 18 | 15 | 12 | 10 | ||
|
4RK25GN-A□ 4RK25GN-E□ 4RK25GN-C□ 4RK25GN-H□ |
4GN□RC 4GN□RT |
50Hz | 0.99 | 1.18 | 1.64 | 1.97 | 2.37 | 3.29 | 3.95 | 4.73 | 6.58 | 7.10 | 8.00 | 8.00 | 8.00 | 8.00 | 8.00 | 8.00 |
| 10.1 | 12.1 | 16.8 | 20.1 | 24.2 | 33.5 | 40.3 | 48.3 | 67.1 | 72.5 | 80.0 | 80.0 | 80.0 | 80.0 | 80.0 | 80.0 | |||
| 60Hz | 0.80 | 0.95 | 1.33 | 1.59 | 1.91 | 2.65 | 3.18 | 3.82 | 5.30 | 5.73 | 7.16 | 8.00 | 8.00 | 8.00 | 8.00 | 8.00 | ||
| 8.12 | 9.74 | 13.5 | 16.2 | 19.5 | 27.1 | 32.5 | 39.0 | 54.1 | 58.4 | 73.0 | 80.0 | 80.0 | 80.0 | 80.0 | 80.0 | |||
■ Dimensions (Unit mm)
■ Wiring Diagram
■ Features For Reversible Motor
1.Reversible motor has a friction brake at the back of the motor body, which is designed for applications where reversal of direction is frequently required. For the friction brake the damp with spring impacts the rotating brake disk and supplies with continuous press.
2.The holding torque and overtravel of a simple brake will vary with the length of rotation time or temperature.
3.The reversible motor, like induction motor, is started by the capacitor and has a same torque characteristic with the induction motor.But the Reversible Motor is designed with a higher starting torque to increase the instant reversal features.