Products · Metal parts

Machined stainless rings and spacers

Rings, collars and spacer sets in stainless and aluminium, bored and faced from one datum so the stack closes without shims.

  • Machined in Humen, Dongguan
  • Held to ±0.01 mm on the drawing
  • Inspected on a Swiss Hexagon CMM

Also searched asstainless machined rings · turned spacers and collars · bearing shim sets · machined stainless parts · metal turning supplier China

Set of machined stainless steel rings, collars and spacers standing beside their finished stack
Photographed in our plant in Humen, Dongguan

Two numbers decide whether a ring works: how far the bore sits off the flange centre, and how parallel the faces stay once the part is clamped. Thin walls move under clamping force, so the sequence carries the result — rough out, stress-relieve where the section is thin, then finish bore and both faces in one setup on a 0.001 mm turning centre.

Most of these parts disappear inside an assembly: bearing spacers, clamp collars, sensor barrels. We fix the datum scheme and the inspection points with you at DFM stage, which is why the first-off report lists the same features your assembly gauges touch, not a generic checklist.

Typical duty

  • Clamp collars and split rings
  • Bearing spacers, shims and preload washers
  • Sensor and camera barrel housings
  • Location rings for jigs and fixtures

Specification

What the drawing and the CMM agree on

Standing capability for ring and spacer work. Datum scheme and inspection points are confirmed with you before the first setup.

Ring and spacer specification — agreed before the first setup
Manufacturing routeTurning and milling centres, drilled and tapped holes; wire-cut and sinker EDM for die components
StockStainless steel, aluminium, brass and copper alloys, titanium
ConcentricityBore and flange held from one datum, checked on the CMM
Drawing tolerance±0.01 mm on critical features; machine resolution 0.001 mm
Distortion controlRough, stress-relieve on thin walls, then finish in a single setup
FinishAs machined, bead blast or polish; plating and anodising to your specification
VerificationFirst-off measured on the Swiss Hexagon CMM; the report travels with the batch
Paperwork2D/3D drawings, material certificate, inspection report

Figures are our standing capability for this class of work, not a quotation for a specific job. Material, finish and inspection plan are agreed on the drawing before cutting starts.

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Sheet-metal stamping die

Single-station dies for tinplate boxes and drawn panels, proven on our press before shipment.

Next step

Send the drawing, get a price and a process note

2D drawing or 3D model, the alloy and the quantity are enough for a price, a lead time and the points we would change before cutting metal.