Is this any help, Mike ?

https://www.college-sewing.co.uk/82180-following-pinion-singer-29k.html

MichaelG.

As well as College Sewing, as per Michael’s link, I had stuff from Trojan as well

82178 – Singer 29K Shuttle Carrier Driving Pinion

Some of the Chinese made stuff really doesn’t fit that well, but at least folk on this forum are likely to have access to a workshop.
I had some amusement fitting a bell cranks to my 29K4 a little while ago; I appreciate some K4 parts are slightly different to later machines.
I documented that on the Singer 29 and Other Cobblers Facebook group; they seem a helpful and friendly bunch

Edit, looks like Nick and I were typing at the same time.
Here’s a little video I also shared to the group

Bill

Hi Mike

A man after my own heart.

I have a Singer 201 to which I’ve fitted a 24V 100W brushless DC motor and controller to provide servo like speed control. This provides more torque to enable light leather stitching at low speed. I’ve been looking for a 29K to handle tougher leather but most are too costly for my occasional use. The Chinese stitchers, which are based on the Bradbury machine, are cheap but need work to improve their action.

Several people have already shown where spare parts for Singers are available but if push come to shove HPC gear in the UK may be able to provide gears if they are standard metric or Imperial formats.

CS

At 8 teeth you are unlikely to be able to replicate them with an involute or single point cutter as there is likely to be some undercutting needed.

EDIT having looked at a couple of gears on the Trojan site they don’t look to be a standard profile anyway so a case of grinding up a single point tool.

Clever stuff in that video, Mike  … and very well described.

MichaelG.