L-Gauge Powered Truck (TT Motor Drive)
This is an L-gauge powered truck designed around a TT motor, primarily intended to run on my custom 37.5 mm track. This truck may not be compatible with all 37.5 mm track systems due to its flange geometry.
Key Dimensions & Specifications
Overall Geometry
- Bolster 52 mm x 6 mm
- Frame width: 59.5 mm
- Wheelbase: 42 mm
- Axle width (overall): 59.5 mm
Wheel & Axle Details
- Bearing step: 5 mm
- Wheel step width: 9 mm
- Distance between wheel flanges: 31.5 mm
- Wheel width: 8 mm
- Flange diameter: 27 mm
- Tread width: 22 mm, tapering down to 18 mm
Gear Train
- 1 × 34-tooth gear (34 mm diameter)
- 2 × 12-tooth gears (12 mm diameter)
- Designed for use with a TT motor
Bearing Requirement
- 6 × ball bearings
- Inner diameter: 6 mm
- Outer diameter: 10 mm
- Width: 3 mm
These bearings are required for proper axle support and smooth, low-friction operation.