Pololu 75:1 Metal Gearmotor 25Dx54L mm LP 12V brushed DC motor

Name: Pololu 75:1 Metal Gearmotor 25Dx54L mm LP 12V brushed DC motor
Brand: Pololu
SKU: PO3254
Price: 40.40 EUR
Availability: InStock

Item No.: PO3254

HAN: 3254

EAN: 4060137101977

HS Code: 8501109990

Herkunftsland: CN

Lagerstufe: Maintain

40,40 €

per pack

incl. 19% VAT plus (L)

Net: 33,95 €

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Product Description

This gearmotor consists of a low-power, 12 V brushed DC motor combined with a 74.83:1 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: 22×20×22×22×22×23 / 12×12×10×10×10×10 ? 74.83:1

Key specifications

voltage: 12 V
no-load performance:75 RPM, 50 mA
stall extrapolation:7.1 kg?cm (99 oz?in), 0.9 A

Dimensions

Size:25D x 54L mm(Length measurement is from gearbox face plate to back of motor (it does not include the output shaft or motor terminals).)
Weight:91 g
Shaft diameter:4 mm(D shaft)

General specifications

Gear ratio: 74.83:1
No-load speed @ 12V: 75 rpm(Typical; ±20%)
No-load current @ 12V: 0.050 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: 0.90 A
Stall torque @ 12V: 7.1 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: 1.4 W
No-load speed @ 6V: 38 rpm
Stall current @ 6V: 0.45 A
Stall torque @ 6V: 3.6 kg·cm(This motor will run at 6 V but is intended for operation at 12 V.)
Motor type:12V, 0.9A stall (LP 12V)

Performance at maximum efficiency

Max efficiency @ 12V: 35 %
Speed at max efficiency: 62 rpm
Torque at max efficiency: 1.2 kg·cm
Current at max efficiency: 0.17 A
Output power at max efficiency: 0.73 W

General specifications

Encoders?: N

Technical documents / Downloads

25D GearmotorDocument (PDF)Download

Dimensions and Weight
Item information	Value
GTIN:	4060137101977
HAN:	3254
Category:	I-Form
No-Load Speed (RPM):	75
Form/Type:	Low-Power (LP)
Shaft:	Single
Encoder:	Without
Rated Voltage (V):	12
Gear Ratio:	75:1
Dimension (mm):	25D
Stall Torque (kg-cm):	7.1
No-Load Current (A):	0.05
Max Power (W):	1.4
Stall Current (A):	0.9
Shipping weight:	0,10 kg
Item weight:	0,09 kg
Dimensions ( Length × Width × Height ):	5,40 × 2,50 × 2,50 cm

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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)

25D Gearmotor

Manufacturer according to GPSR
Pololu Corporation, Pilot Rd. 920, 89119 Las Vegas, Nevada, Vereinigte Staaten, [email protected], https://www.pololu.com/