4" contact wheel

Only 1 left in stock!
Pickup available at 6 Geebung street Polo Flat NSW

Usually ready in 24 hours

View store information

*Disclaimer - before ordering this wheel for a Shop Master 2x72" grinder, please measure your tooling arm. The 4" Contact Wheel requires a 400mm long tooling arm (all newer Shop Masters are supplied with these as standard). Older Shop Master 2x72" grinders were supplied with 300mm tooling arms which will not work with this wheel. You can order a 400mm tooling arm HERE,  or use a small wheel arm if you have one. Alternatively, the 4" can also be swapped out with the 5" wheel on your rotating platen* 

Our precision ground contact wheels are perfect for many tasks, from general metal shaping & stock removal to knife handle sculpting and profiling. The standard 19mm spigot included with the wheel allows for fast and efficient changing between your contact wheel and flat platen.

Contact wheels are great for rapid stock removal as the smaller diameter of the wheel opens the grain of the belt, exposing fresh grit that simply cannot be utilised in flat platen grinding.

Our billet aluminium hubs are precision CNC machined, then coated in a premium, abrasion-resistant urethane rubber – all completed in-house. The wheels are then ground concentric for a perfectly smooth and vibration free grinding experience.

The 4" contact wheel is compatible with all 84 Engineering 2x48" and 2x72" belt grinders / linishers using tooling arms included with your grinder.

Product Specifications

- Size: 4"x2" (102mm x 50mm)
- Hub Material: 6061 Billet aluminum
- Surface Material: 83 Shore A durometer polyurethane polymer
- Bearings: High quality Timken, FAG or Nachi Bearings
- Spigot: 19mm

Included in package

-4" Contact Wheel
-19mm spigot
-Stop collar
-Spigot bolt

Shipping Information

Our on-line store is open 24/7 and we ship Monday through Friday, excluding some holidays. Orders received for products without shipping restrictions on its product page will ship the following business day when received before 12:00 p.m. AEST. Orders in high demand will have an estimated production time listed on its product page and will ship according to the date listed.

Customer Reviews

Based on 1 review
Mick R
4” contact wheel

Excellent product, great customer service and speedy delivery, thanks 84 👍🏻

CNC machined Aluminum hubs

All 84 Engineering wheels start as a billet of 6061 aluminium. Hubs are CNC machined to precise tolerances before coating

84 Engineering in-house rubber wheel coating - mould opening

Hard wearing rubber coating

Our contact wheels are now coated with 83 shore A polyurethane rubber to provide extreme wear resistance. Wheels are then ground perfectly flat to remove any surface variation

Premium bearings

We use only high quality Timken, FAG or Nachi bearings in our contact wheels, spaced with an internal crush tube for optimal bearing pre-load


We take pride in our quality and service
Dmitriy Popov

DP Custom Knives

Have been a long time customer of 84 Engineering and every product I have purchased has been manufactured incredibly well with very high attention to detail. Customer service has also always been top notch. You will definitely be well looked after here.

Jordy Kopetko

Deathrig Fabrication

Amazing Aussie made products - used daily in my workshop. Quality second to none

Dan Murray

Cafe Racer Garage

I have been using 84 Engineering belt grinders for many years, it's truly the one tool that gets the most use in my garage building motorcycles, It's one of those tools that you wonder how you ever did without! I highly recommend anyone working with steel have one! Dan - Cafe Race Garage -YouTube

Riley Burns

Knife Maker

Our 84 Engineering machine is the best in our workshop and the best we've ever owned. Their service is second to none.

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