Pilot Rd. 920
Nevada
Las Vegas, Vereinigte Staaten, 89119
[email protected]
https://www.pololu.com/
Am Ostbahnhof 3
Niedersachsen
Clausthal-Zellerfeld, Deutschland, 38678
[email protected]
https://eckstein-shop.de
GTIN: | 4060137102141 |
HAN: | 3202 |
Category: | I-Form |
No-Load Speed (RPM): | 1000 |
Form/Type: | High-Power (HP) |
Shaft: | Single |
Encoder: | Without |
Rated Voltage (V): | 12 |
Gear Ratio: | 9.7:1 |
Dimension (mm): | 25D |
Stall Torque (kg-cm): | 3.9 |
No-Load Current (A): | 0.25 |
Max Power (W): | 10 |
Stall Current (A): | 5 |
Storage Tiers: | Maintain |
Shipping weight: | 0,10 kg |
Item weight: | 0,08 kg |
Dimensions ( Length × Width × Height ): | 4,80 × 2,50 × 2,50 cm |
This gearmotor consists of a high-power, 12 V brushed DC motor combined with a 9.68:1 metal spur gearbox. The gearmotor is cylindrical, with a diameter just under 25 mm, and the D-shaped output shaft is 4 mm in diameter and extends 12.5 mm from the face plate of the gearbox. This gearmotor is also available with an integrated encoder.
Exact gear ratio: 22×22×24 / 12×10×10 = 9.68:1
Key specifications
- voltage: 12 V
- no-load performance: 1000 RPM, 250 mA
- stall extrapolation: 3.9 kg?cm (54 oz?in), 5.0 A
Dimensions
- Size:25D x 48L mm(Length measurement is from gearbox face plate to back of motor (it does not include the output shaft or motor terminals).)
- Weight:82g
- Shaft diameter:4 mm(D shaft)
General specifications
- Gear ratio: 9.68:1
- No-load speed @ 12V: 1000 rpm(Typical; ±20%)
- No-load current @ 12V: 0.25 A(Typical, ±50%; no-load current depends on internal friction, which is affected by many factors, including ambient temperature and duration of motor operation.)
- Stall current @ 12V: 5.0 A
- Stall torque @ 12V: 3.9 kg·cm(Stalling is likely to damage the gearmotor. Stall parameters come from a theoretical extrapolation of performance at loads far from stall. As the motor heats up, as happens as it approaches an actual stall, the stall torque and current decrease.)
- Max output power @ 12V: 10 W
- No-load speed @ 6V: 500 rpm
- Stall current @ 6V: 2.5 A
- Stall torque @ 6V: 2.0 kg·cm(This motor will run at 6 V but is intended for operation at 12 V.)
- Motor type: 12V, 5.0A stall (HP 12V)
Performance at maximum efficiency
- Max efficiency @ 12V: 52 %
- Speed at max efficiency: 890 rpm
- Torque at max efficiency: 0.58 kg·cm
- Current at max efficiency: 0.84 A
- Output power at max efficiency: 5.3 W
General specifications
- Encoders?: N
25D Gearmotor
This File includes
- Dimension diagram of the Pololu 25D Metal Gearmotors (pdf)
- 3D models of 64D mm gearmotors (zip)
- Modifying the Wild Thumper to use motors with encoders (pdf)
Manufacturer according to GPSR
Pololu Corporation, Pilot Rd. 920, 89119 Las Vegas, Nevada, Vereinigte Staaten, [email protected], https://www.pololu.com/
Responsible person according to GPSR
Eckstein GmbH, Am Ostbahnhof 3, 38678 Clausthal-Zellerfeld, Niedersachsen, Deutschland, [email protected], https://eckstein-shop.de