CNC Machined Bushings & Housings
CNC machined bushings, blocks and housings — turned and milled to print, with bore and mounting faces held to drawing.
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CNC Machining Parts
CNC Machined Sleeves & Bushing Sets
CNC machined sleeves and plain bearings, supplied as single parts or as matched sets with bore sizes logged.
| Materials | 6061-T6 / 7075-T6 aluminium, 45# carbon steel, 304 / 316L stainless, C360 copper, POM / nylon / PTFE |
|---|---|
| Tolerance | ±0.05 mm general tolerance, ±0.01 mm on critical features — held to print |
| Surface finish | As-machined, bead blasted, anodised Type II, zinc plated, passivated |
About this part
What it is and why it is made that way
A sleeve is a plain bearing with a controlled bore and a controlled outside diameter, and the difference between a good one and a bad one is entirely in the tolerance. We machine the bore and the OD in the same setup, and where a sleeve is part of a set we log and match the sizes so the set goes together smoothly.
- Bore and OD machined in one setup for concentricity
- Supplied individually or as matched sets with a size log
- Bronze, steel, stainless or polymer, to specification
- Surface finish controlled for the running speed
Materials
- Aluminium 6061-T6 / 7075-T6
- Carbon steel 45# / Q235
- Stainless 304 / 316L
- Copper C360 / brass HPb59-1
- Engineering plastics (POM, nylon, PTFE)
Production processes
- 3-axis CNC turning
- 3-axis CNC milling
- 4-axis CNC milling
- 5-axis machining
Typical applications
- Plain bearings and wear bushes
- Pivot sleeves
- Guide sleeves
- Spacer sleeves
Specification
Technical detail
The ranges below are what this shop typically holds. Anything tighter than the baseline is possible — send the drawing and we will confirm it against your specific tolerances rather than quote from a table.
| Materials | 6061-T6 / 7075-T6 aluminium, 45# carbon steel, 304 / 316L stainless, C360 copper, POM / nylon / PTFE |
|---|---|
| Tolerance | ±0.05 mm general tolerance, ±0.01 mm on critical features — held to print |
| Surface finish | As-machined, bead blasted, anodised Type II, zinc plated, passivated |
| Max. envelope | Up to Ø300 × 500 mm, per machine |
| Inspection | CMM, micrometers, bore gauges, thread gauges — inspection report issued per batch |
| Bore | H7 standard, tolerance by request |
| Concentricity | ≤0.01 mm between bore and OD |
| Surface roughness | Ra 0.8 – 1.6 µm on the bore, to specification |
Material and finish are yours to choose. The lists above are the families this part is normally made in. We will not substitute a grade or change a tolerance without telling you first — and asking.
In the same process line
Other CNC Machining parts
If this is not quite your part, these are made on the same equipment with the same inspection.
CNC Turned Collars & Nuts
CNC turned collars, nuts and hexagonal fittings, produced on lathes with threads cut and runout controlled.
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CNC Machined Rings, Pins & Bushings
CNC machined rings, pins and grooved bushings, made to the bore, groove and concentricity the assembly depends on.
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Get a quote for this part
Send the drawing and we will quote it against your material, your tolerance and your quantity. One business day, in writing, with a lead time you can plan around.