NEMA 23 Planetary gearbox reducer, 1:3.333 ratio

NEMA 23 compatible planetary gearbox reducer. It has a reduction ratio of 1:3.333;
Ring teeth: 63
Sun teeth: 27
Planet teeth: 18

In addition to included files you will need an M8 bolt, M8 nut, and 22mm OD/8mm ID/7mm TH bearing, along with a NEMA23 motor.

Lubrication is essential - you should not run the gears dry or the planets will bind to the carrier. Apply a lot of lubricant grease.