These Slot.It brass pinion gears are designed for use with smaller diameter 1.5mm motor shafts. For example, a "slim-can" (FF-050) motor has a 1.5mm diameter shaft. This pinion gear has 9 teeth (9T), a diameter of 5.5mm and is compatible with motors having a 1.5mm diameter shaft.
Slot.It 5.5mm pinion gears are generally designed for use with Slot.It Crown (inline) gears; however, there are always exceptions. For more information about compatible pinion / driven gear combinations and available gear ratios, please click the link below.
IMPORTANT: Space constraints in cars where slim-can motors are often used may also limit your selection of crown gears. The diameter of a crown gear will increase as the number of teeth increases. While the Gear Ratio Chart shows all possible combinations, it is up to you to determine if a given crown gear will actually fit in your car.
- Slot.It pinion gears are designed to be "pressed" onto the motor shaft. They should only be installed / removed using a pinion puller or pinion press designed specifically for that purpose AND compatible with the smaller 1.5mm motor shafts. Using other tools/methods will likely result in a damaged pinion, a damaged motor or both. Our favorite tool for this purpose is a combination puller / press made by Slot.It (see "Related Products" below).
Package contains two (2) pinion gears.