4mm bore gears | Railwayscenics

International Orders

Update on 3rd February 2023: Royal Mail are still requesting people to stop posting new orders internationally through the Post Office. This is to allow them time to rectify the problems they are still having after the cyber attack a few weeks ago. Any international orders placed will be held until we are able to post them again.

We apologise for any inconvenience this may cause.

4mm bore gears

A range of red plastic MOD1 gears that will fit tightly onto a 4mm shaft. All of the gears can be meshed together to get different final drive ratios. Available with either a plastic or brass centre bore fixing. These gears are a tight fit and should be pressed onto any 4mm steel type shafts.