Ultrascale Products | Your Sign of Quality for 4mm Scale Wheels and Gears

Ultrascale Model Railway Products

Ultrascale is the name under which a range of 4mm scale items for modelling British outline steam and diesel locomotives is produced. This range includes items for 'OO' Fine scale, E.M. or 18.83 gauges. Also available is a range of gears suitable for various scales and applications.
Gear Cutting

As well as the standard gears listed, we are able to produce gears with other tooth sizes and numbers of teeth as a bespoke service for the modeller.
Mobile Apps

We have designed and developed a number of gear based mobile apps to help in the Setting up, Production and Checking of the gears. These apps are available for both iPhone and Android devices.

Welcome to the Ultrascale Products web site

On this web site you will find information about Ultrascale products. Ultrascale is the name under which a range of 4mm scale items for modelling British outline steam and diesel locomotives is produced. This range includes the most common locomotive and rolling stock wheels and conversion packs for proprietary, ready to run locomotives. Most of these items can be supplied for either 'OO' Fine scale, E.M. or 18.83 gauges. Also available is a range of worm and wheel gear sets and spur gears suitable for all scales.

We can also offer a bespoke gear cutting service, to produce gears outside the current range offered on the web site. We have also developed a number of mobile apps to help in the setup, production and checking of gears.

All items are produced to order, using manual production processes, which means that lead times can be long. Therefore, if our current lead time is a problem, please contact us.

Current Production Status

Delivery Time

Our current delivery on production items can be up to
9 months
from receipt of order.

Commission Gear Cutting

All brass gear train for 'O' Gauge Heljan Class 33

This was a customer commissioned job following some of the original nylon moulded gears splitting.

Product Update and Information

Worm and Wheel Gear Sets

100 dp and 0.4 mod worms

We have just re-introduced our original steel worms for both 100 dp and 0.4 mod worm and wheel gears set. These worms are available with 1.5mm, 2.0mm and 3/32" bore.

Full details can be found in the Gears and Gears Sets section of this web site.

Gearbox development using 3D printing

Just a quick update to show the lastest of our prototype gearboxes with 3D printed case. This is a 38:1 worm and wheel box, the one with the fly wheel can have both input and output shafts remove with out having to dis-assemble the gear box.