Spacers
Spacers are machined tubes, rings or blocks that set an exact distance between parts in an assembly, such as between bearings, pulleys or panels. We supply round, hex and custom spacers in metal and plastic with precise length and parallel faces.
What it is
Round spacers are turned from bar or tube, with the length and face parallelism held accurately so assemblies stack correctly. Threaded standoffs, hex spacers and stepped spacers are also common.
In bearing arrangements, the spacer length often controls preload or axial float, so length tolerance and face finish matter.
Typical applications
- Bearing and shaft spacers
- Pulley and gear spacers
- PCB and panel standoffs
- Machine assembly spacers
- Structural and bolted-joint spacers
Suitable materials
- Mild steel and alloy steel
- Stainless steel
- Aluminium
- Brass
- Nylon and other plastics (insulating)
Points to consider
- State the length tolerance and face parallelism if the spacer controls bearing preload.
- Tube stock can be cheaper than boring from solid bar for larger spacers.
- Use plastic spacers where electrical insulation or corrosion resistance is needed.
- Deburr bores to avoid damaging shafts during assembly.
Frequently asked questions
What is the difference between a spacer and a washer?
A washer is a thin, often stamped disc that spreads load. A spacer is usually thicker and machined to a precise length to set a gap.
Can spacers be threaded?
Yes. Male-female or female-female threaded standoffs are common for panels and electronics.
Which spacer material should I use?
Steel or stainless for load-bearing assemblies, aluminium for light weight, and nylon where insulation or corrosion resistance is needed.