Fisher Price Motor

Fisher Price (FP) motors and gearboxes were included with every kit of parts from 1999 through 2012. The FP is the second most powerful motor in the kit of parts. The FP is taken from a Powerwheels (tm) car where it powers one of the wheels.

Included gearbox

The included gearbox is the same one that is used in the Powerwheels (tm) car. It has a ratio of approximately 188:1. The gearbox uses plastic gears, but it is relatively reliable and not known to strip gears. It has a non-standard output shaft consisting of a open-ended cylinder with 10 slots cut into it. It mates with a spool-shaped piece with spokes matching the slots.

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Torque and Efficiency curves

• The torque of the fp motor is .45 N-m at stall
• With gearbox: 2.25 N-m
• Without gearbox: .45 N-m

Usage Notes

The Fisher Price has by far the highest power density of any of the KoP motors.

The 2005 KoP included a Fisher Price motor designed to operate at 9 volts, instead of 12. Consequently, it is very easy to burn out because it creates such large amounts of heat in such small volume/mass. Be sure to design a mechanism using a Fisher Price so that the motor never approaches the stall torque. A good rule of thumb is to design for 1/4 the stall torque.

Kit of Parts

2012

Two Fisher Price motors and gearboxes were provided in the KOP.

2011

One Fisher Price motor and gearbox were provided in the KOP.

2001-2010

Two Fisher Price motors and gearboxes were provided in the KOP

2000

No data.

1999

The Fisher Price motor makes its debut in FRC. One motor and gearbox were provided in the KOP.