Pololu 75:1 Metal Gearmotor 25Dx69L mm LP 12V with 48 CPR Encoder

Name: Pololu 75:1 Metal Gearmotor 25Dx69L mm LP 12V with 48 CPR Encoder
Brand: PJRC
SKU: PO4886
Price: 73.72 EUR
Availability: InStock

Item No.: PO4886

HAN: 4886

EAN: 4060137101731

HS Code: 8501109990

Herkunftsland: CN

Lagerstufe: Maintain

73,72 €

per pack

incl. 19% VAT plus (L)

Net: 61,95 €

Choose tax zone / country of delivery

Product Description

This gearmotor consists of a low-power, 12 V brushed DC motor combined with a 74.83:1 metal spur gearbox, and it has an integrated 48 CPR quadrature encoder on the motor shaft, which provides 3591.84 counts per revolution of the gearbox’s output shaft. 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 without an 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, 60 mA
stall extrapolation: 7.1 kg?cm (99 oz?in), 0.9 A

Dimensions

Size: 25D x 69L mm (Length measurement is from gearbox face plate to back of encoder cap (it does not include the output shaft))
Weight: 104 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: 0.060 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

Lead length: 8 in (May vary by a few inches.)
Encoders?: Y

Technical documents / Downloads

25D GearmotorDocument (PDF)Download

Dimensions and Weight
Item information	Value
GTIN:	4060137101731
HAN:	4886
Category:	I-Form
No-Load Speed (RPM):	75
Form/Type:	Low-Power (LP)
Shaft:	Single
Encoder:	With
Rated Voltage (V):	12
Gear Ratio:	75:1
Dimension (mm):	25D
Stall Torque (kg-cm):	7.1
No-Load Current (A):	0.06
Max Power (W):	1.4
Stall Current (A):	0.9
Shipping weight:	0,17 kg
Item weight:	0,14 kg
Dimensions ( Length × Width × Height ):	6,90 × 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
PJRC.COM, LLC, SW Brooke CT 14723, 97140 Sherwood, Oregon, Vereinigte Staaten, [email protected], https://eckstein-shop.de/PJRC-Marken