Motor Information Large (>25 Watts) Motor Mabuchi RS-555PH-3550 VOLTAGE NO LOAD AT MAXIMUM EFFICIENCY STALL OPERATING RANGE NOMINAL SPEED CURRENT SPEED CURRENT TORQUE OUTPUT TORQUE CURRENT rpm Amps rpm Amps mN·m g·cm Watts mN·m g·cm Amps 7 - 12 12V 5,560 0.1 4,970 1.25 25 252 12.5 200 2,039 10.15 8 AA (test) 12V TBD TBD           TBD TBD 3.1 Electrical Specifications (from tests)   Terminal Resistance: 1.2 Ohms ________________________________________________________________ Engineering Drawing (149k PDF) ________________________________________________________________ Performance Chart (52k PDF) Small (~4 Watts) Motor Mabuchi FK-280PM-12300 VOLTAGE NO LOAD AT MAXIMUM EFFICIENCY STALL OPERATING RANGE NOMINAL SPEED CURRENT SPEED CURRENT TORQUE OUTPUT TORQUE CURRENT rpm Amps rpm Amps mN·m g·cm Watts mN·m g·cm Amps 10 - 15 12V 12,300 0.075 10,710 0.50 0.340 34.7 3.81 26.3 268 3.40 8 AA (test) 12V TBD TBD           TBD TBD TBD Engineering Drawing (16k PDF) Performance Chart (55k PDF)