99:1 Metal Gearmotor 25Dx66L mm HP 6V with 48 CPR Encoder (No End Cap)

Pololu item #: 2276
Brand: Pololu
Status: Clearance 
RoHS 3 compliant

Price break Unit price (US$)
1 29.95 36.95


Clearance: This is being replaced by a functionally identical version that has a removable protective end cap over the encoder.

This gearmotor consists of a high-power, 6 V brushed DC motor combined with a 98.78:1 metal spur gearbox, and it has an integrated 48 CPR quadrature encoder on the motor shaft, which provides 4741.44 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.

Key specifications:

voltage no-load performance stall extrapolation
6 V 97 RPM, 550 mA 15 kg⋅cm (210 oz⋅in), 6.5 A

You can use the following selection boxes to choose from all of our 25D metal gearmotor versions:

Alternatives available with variations in these parameter(s): gear ratio motor type encoders? Select variant…

 Description Specs (11) Pictures (14) Resources (4) FAQs (2) On the blog (0) 

Dimensions

Size: 25D x 66L mm1
Weight: 103 g
Shaft diameter: 4 mm

General specifications

Gear ratio: 98.78:1
No-load speed @ 6V: 97 rpm
No-load current @ 6V: 550 mA
Stall current @ 6V: 6500 mA
Stall torque @ 6V: 210 oz·in2
Motor type: 6.5A stall @ 6V (HP 6V)
Lead length: 8 in3
Encoders?: Y

Notes:

1
Length does not include the motor shaft. See dimension diagram for details.
2
This is a theoretical value; stalling the gearbox output shaft is likely to damage the gearbox.
3
May vary by a few inches.

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