Sunny Robotics P6S Upgrade Kit

grabcad

These are the upgraded parts used on the Banebots P6S gearbox. These are a drop in replacement for the stock gearbox. It should be compatible with any ratio P6S gearbox and even older P6 gearboxes sold in the past.There are two sets of carrier pin holes that can be used for a final stage reduction of 4:1 or 3:1. I'm not fully confident the pin locations are 100% accurate. I recommend double checking these numbers.4:1 ratio spacing: 8.991mm from center3:1 ratio spacing: 9.702mm from centerStock gearbox can be purchased from:https://banebots.com/gearboxes/p6-gearboxes/BOM:----------------------Sun Gear retaining pinsDowel Pin52100 Alloy Steel, 2 mm Diameter, 10 mm Longhttps://www.mcmaster.com/91595A026/----------------------Carrier PinsDowel Pin4037, 4140 Alloy Steel, 1/8" Diameter, 7/16" Longhttps://www.mcmaster.com/98381A218/----------------------Heavy Duty External Retaining Ringfor 15 mm OD, Black-Phosphate 1060-1090 Spring Steelhttps://www.mcmaster.com/90030A102/----------------------Bearings:6902zz from ebay----------------------61802zz from ebay----------------------Made by:SunnyRobotics.com