Manufacturer Description

This is a 73 tooth, 48 Pitch slipper spur gear from Kimbrough Products. This slipper gear is intended for use with the Associated B4, T4, and SC10 vehicles. Kimbrough Racing Products Plastic Gears have been used to set all of
the unlimited speed records for R/C 1/10 scale electric cars in the
U.S., and are used by a majority of the top professional R/C car racers
around the world. The best drivers in the world trust Kimbrough gears,
so you know you can too!
Kimbrough spur gears are molded with black 4/6 Nylon plastic,
because black dissipates heat into the air better then any other color -
and high temperatures are not good for thermo-setting plastics. This
plastic is almost three times tougher and will withstand operating
temperatures 75? to 125? higher than plastics used by other R/C car gear
manufacturers.
Kimbrough spur gears are full width, because a narrow or profiled
plastic gear can deform under load, is weaker and less efficient. This
can cause drag in the gear train and waste horsepower. The wider a gear
is, the more load it can handle. The only time gear engineers narrow
gears, is when there is a space limitation. Kimbrough Racing Products
gears run quiet because they have the correct tooth shape and don't have
to be narrowed. NOTE: The use of full width pinion gears is highly recommended.