Fisher Price Spec?

[Paul Copioli]

O.K., here are the specs. I got the information from an engineer at Johnson Electric North America. He will e-mail the spreadsheet later this week, but he gave me the rough numbers so we can get started.

Stall Torque = .64 N-m
Stall Current = 92.8 amps
Free Speed = 15,700 RPM
Free Current = 1.1 amps

So, where does this put us? Here are the specs from last year's Mabuchi Motor and 2002's Johnson Electric Motor:

2003 Mabuchi 2002 JE

Stall Torque = .38 N-m .51 N-m
Stall Current = 57 amps 109 amps
Free Speed = 15,000 RPM 20,326 RPM
Free Current = 1.1 amps 2.7 amps


Comparing Maximum Mechanical Power Output:

2004 JE = 263 Watts
2003 Mabuchi = 150 Watts
2002 JE = 274 Watts

So the bottom line is that even though the free speed is close to the 2003 motor, the output power (which determines speed/torque tradeoff) is very close to the 2002 Johnson electric. The 2002 JE was similar in power to the old drill motors.

Raul,

To answer your question directly, the speed is 15,700 RPM; but you will get similar torque characteristics as '02.

-Paul