HO Shay Speed Reduction Gear set 13T 2-lead gear & RH Worm
- Item #: 129-6
HO Shay speed reduction gear set. Replaces 7:12 helical gearset in most large PFM/United Shays (B2, B3, Pacific Coast, but NOT "flywheel Shay). Cuts top speed to approx. 22 smph (2/3rd original) for more realistic operation. Includes bearing for motor shaft end support, quieter operation.
Contents: 0.4mod x 13T WGb (2-lead), x 2.6 bore with set screw, Worm, steel, RH (2-lead) 0.4mod x 6mm OD x 2.4mm bore x .244" L, brass bearings (#358-6), washers