DC geared motor,1.5-3V 100:1 rpm ratio
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Specifications
| Core Construction | Iron Core | |
| Current Rating | 0.85 A | |
| Gearhead Type | Spur | |
| Length | 50mm | |
| Maximum Output Torque | 20 gcm | |
| Output Speed | 7800 rpm | |
| Power Rating | 1.6 W | |
| Shaft Diameter | 2mm | |
| Supply Voltage | 1.5 → 3 V dc | |
| Width | 27mm |
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Model Motors & Gearboxes - Spur
These motors have in-line metal gears fitted; the final output speed is determined by the motor supply voltage.
| Reduction Table (rpm) - 918D series 25mm | ||||||
| Manufacturer Part No. | 1.5V | 3V | 6V | 12V | 18V | 24V |
| 918D151 | 306 | 613 | – | – | – | – |
| 918D301 | 153 | 306 | – | – | – | – |
| 918D1001 | 46 | 92 | – | – | – | – |
| 918D2501 | 18 | 37 | – | – | – | – |
| 918D10241 | 4.5 | 9 | – | – | – | – |
| 918D15112 | – | – | 280 | 560 | 840 | 1120 |
| 918D30112 | – | – | 140 | 280 | 420 | 560 |
| 918D100112 | – | – | 42 | 84 | 126 | 168 |
| 918D250112 | – | – | 17 | 34 | 50 | 67 |
| 918D1024112 | – | – | 3 | 7 | 11 | 15 |
| Reduction Table (rpm) - 919D series 35mm | |||||
| Manufacturer Part No. | 4.5V | 6V | 9V | 12V | 15V |
| 919D2.51 | 2250 | 3000 | 4500 | 6300 | 7900 |
| 919D61 | 990 | 1316 | 1975 | 2633 | 3295 |
| 919D111 | 540 | 718 | 1077 | 1436 | 1800 |
| 919D501 | 120 | 158 | 237 | 316 | 395 |
| 919D1001 | 59 | 79 | 119 | 158 | 198 |
| 919D1481 | 40 | 53 | 80 | 106 | 132 |
| 919D5001 | 11 | 15 | 21.5 | 30 | 37.5 |
| 919D8101 | 7.5 | 10 | 15 | 20 | 25 |
| 919D30001 | 1.5 | 2 | 3 | 5 | 6 |
MFA Como Geared Motors
A selection guide for MFA Como Geared Motors available:
Multi-ratio spur geared motors:
Suitable for low torque R&D and education applications
Useful in seeking suitable speeds for applications by selecting the appropriate ratio and/or voltage
Metal single ratio spur geared motors mounted on steel brackets:
Suitable for industrial/modelling applications
Economical and easily accessible
Metal single ratio epicyclic geared motors:
Suitable for industrial/modelling applications
Higher efficiency than spur (can be above 90%)
Smaller size and weight for the same or similar rating
Can be equally efficient in either direction
Co-axial configuration of input and output shafts allows inline installation with motor and machine
| Motor Data for Geared Motors | ||||||||||
| Manu. Part No.. | Voltage | No Load | No Load | Max. Eff. | Max. Eff. | Max. Eff. | Power | Stall Torque | Body Length | Shaft Dia. |
| dc | rpm | Amps | rpm | Amps | Torque (gcm) | W | gcm | mm | mm | |
| RE140 | 1.5 - 3 @ 3v | 14800 | 0.3 | 11500 | 1.05 | 10.92 | 1.21 | 49 | 21 | 2 |
| RE280 | 1.5 - 3 @ 3v | 9200 | 0.15 | 7800 | 0.85 | 20 | 1.6 | 62 | 30.5 | 2 |
| RE280/1 | 12 - 24 @12v | 8400 | 0.1 | 6300 | 0.3 | 25 | 1.62 | 100 | 30.5 | 2 |
| RE385 | 6 - 15 @ 12v | 11000 | 0.16 | 9281 | 0.84 | 65.3 | 6.21 | 417.6 | 38 | 2.3 |
| RE540/1 | 4.5 - 15 @ 12v | 15800 | 0.52 | 13360 | 2.85 | 154.4 | 21.2 | 1000 | 50 | 3.17 |
| 941D | 3 - 12 @ 12v | 8000 | 0.018 | 6568 | 0.52 | 8.68 | 0.5 | 26 | 26.8 | - |
| 944D | 6 - 12 @ 12v | 8000 | 0.07 | 6650 | 0.2 | 18 | 1.25 | 100 | 32.3 | - |
| 975D | 6 - 12 @ 12v | 7000 | 0.9 | 5700 | 5.5 | 700 | 41.3 | 4290 | 65 | - |
| 986D | 6 - 12 @ 12v | 5167 | 1.06 | 4289 | 5.28 | 837 | 36.88 | 4923 | 69 | 6.4 |
| 990D | 3.0 @ 3v | 12500 | 0.08 | 10300 | 0.34 | 5.6 | 0.59 | 22 | 30 | - |
| Figures quoted for 1.5 to 3Vdc and 3Vdc motors running at 3Vdc; at 12Vdc for other motors. Body length dimension indicates approximate length of the main body of the motor visible. Where this may be critical, allowance should be made for the rear motor bearing and electrical terminals. | ||||||||||