Revain website lists it as having a set screw but NO set screw is supplied. I'd return it but can't find a comparable gear so I'll probably try to drill and tap to fit a set screw (or 2) in it. Otherwise it looks like a good mechanism. Unlike ebay which has an easy way to contact the seller I can't find a way to contact the person so I guess all I can do is return it or keep it which is quite frustrating . .
HONBAY Parrot Improved Material Replacement
3 Review
π§ Enhanced Performance with JISTL Plastic Single Double Reduction Gear
3 Review
π§ Tapered Pinion Diameter Module - CNBTR
3 Review
π The Ultimate Guide to Boston Gear NB24B Pressure Angle: Features, Benefits, and Applications
3 Review