This is Squared gear box assembled High torque heavy duty DC Gear Motor for bigger robots / motion systems. Drive shaft is supported from with metal bushes, it has sturdy design with gear box made to hold stall torque produced.
 
Specifications:
• 300 RPM 12V DC Motor With Gear Box.
• Heavy Duty Metal Gears.
• Stall Torque: 21 Kg/cm at stall current 4.8A
• Shaft diameter: 8mm
• Shaft length: 30mm
• Gear : metal Spur, Squared gear box assembly
• Weight: 450gm

Usefull in various application:
• Robot development
• centralized air conditioning valve
• automatic system ,
• Medical equipment
• Office equipment
• Household appliances ,
• Automatic actuator.
• Industrial Applications.
• Robot war