Naismith Machine Shop

Since 1947, Naismith Engineering has been a leading supplier of Power Transmission products. Our Machine Shop continues to serve you with non-standard, modified and made-to-order pulleys and sprockets, as well as general machining work like bore and key work.
Our in-house machine shop specializes in fast turnaround time for short-run machining jobs. If you need a modification to a standard item or you need a run of made to order pulley or sprocket, then contact us to see if we can help.
Ability to make:

  • Bore products to standard & special sizes
  • Special Pulleys
  • Special Sprockets
  • Special Poly-V & V- Pulleys
  • Repairs to Zero-max drive units
  • Repairs to fluid couplings

General Machining
Naismith Engineering can bore and key our full range of pulleys, sprockets and couplings to suit your applications. We have an extensive range of broach sets to accommodate a variety of standard and non-standard keyways. Bore sizes from as small as 6mm up to 230mm with a 50mm key are possible. We can bore to very close tolerances for bearings, and supply with circlip groves if needed.
We can taper turn to suit standard Taper Lock bushes and QD bushes.
Our CNC drilling facility enables us to provide very accurate drilled and tapped holes on a nominated PCD.
Our welding workshop can weld in ex-stock blank bosses and taper lock Weld-On hubs.

Timing Pulley & Sprocket Production
Naismith Engineering has an extensive range of gear cutters to manufacture special timing pulleys & sprockets for the common sizes used in the Australian market. We can make them in a variety of materials including aluminium, steel, cast iron, bronze, acetyl and stainless steel.
We manufacture:

  • Classical timing pulleys from XL to XXH
  • HTD pulleys from 3M to 14M
  • Metric pulleys in T and AT profiles
  • Poly chain / GTR pulleys
  • British Standard Sprockets up to 1 inch
  • American Standard Sprockets up to 1 inch
We also supply and fit steel and stainless steel flanges to suit these pulleys, including bolt on flanges if required.
Turnaround time for pulley or sprocket production is 1-2 weeks

Poly-V & V-Pulleys Production
Poly-V or Micro V pulleys are now quite common in Australia. Naismith Engineering can make special ‘J’ and ‘L’ section Poly-V Pulleys from 20mm up to 400mm in aluminium and cast iron.
We can also make standard Vee Pulleys for SPA, SPB, SPC & SPZ up to 600mm in aluminium and cast iron.
Turnaround time for pulley production is 1-2 weeks.

Zero-Max Repair
Naismith Engineering is an authorised repairer for Zero-Max variable speed drives in Australia. We can fully recondition and replace all the normal wearing parts, in the full range of Zero-Max units. For a Zero-Max which has been damaged due to overload or misuse, but the external case is okay, we can replace all the internal parts for a much cheaper price than a new unit.
Turnaround time on most repairs is one week.

Fluid Coupling Repair
Our facility has the capability to refurbish and recondition the full range of Fluidomat fluid couplings. This includes replacement of all bearings and seals, and retesting to Fluidomat specifications.
Turnaround time on most repairs is one week.

For more information on the service our workshop can offer, click here.

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