Hello,
What is the best way of preventing small plastic compound gears from moving up/down their metal axle?
(attached is image)
Details =
Compound gear 24mm dia.
Gear bore hole = 2.1mm dia.
Axle = 2mm dia.
Current solution =
Metal axles are encased in 2 halves of plastic housing (encapsulating hole gear assembly). Axles slot into plastic protrusion (1.5mm thickness) on each side, leaving just enough space for the gear in the middle. The plastic protrusions stop the gear moving up/down the shaft.
Will this be ok, or will friction be too high?
If the protrusion is nylon, will it be better?
Is a metal washer needed between the gear and the protruded surface?
Is a custom axle needed with "insets" for mounting circlips?
I'd like the simplest - cheapest solution
many thanks