A medium-power 12V brushed DC gearmotor with a 98.78:1 metal spur gearbox and an integrated 48 CPR quadrature encoder on the motor shaft. The encoder provides 4741.44 counts per revolution of the gearbox output shaft, enabling precise closed-loop speed and position control.

The cylindrical motor body measures just under 25mm in diameter, and the D-shaped output shaft is 4mm in diameter, extending 12.5mm from the gearbox face plate.

Specifications

• Gear Ratio – 98.78:1
• Voltage – 12V
• No-Load Speed – 76 RPM
• No-Load Current – 200mA
• Stall Torque – 12 kg·cm (165 oz·in)
• Stall Current – 2.1A
• Encoder – 48 CPR quadrature (4741.44 counts/rev at output)
• Motor Diameter – ~25mm
• Output Shaft – 4mm D-shaped, 12.5mm length
• Gearbox – Metal spur gears
• Dimensions – 25D × 54L mm

Also Available

• 99:1 Metal Gearmotor 25D×54L HP 6V – High-power 6V variant without encoder
• 99:1 Metal Gearmotor 25D×54L LP 6V – Low-power 6V variant without encoder

Ideal For

• Closed-loop robotics requiring precise speed/position control
• Motorised mechanisms with encoder feedback
• 12V robotic drive systems

Package Contents

• 1× 99:1 Metal Gearmotor 25D×54L mm MP 12V with 48 CPR Encoder