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Precision rotational components

CNC turning for controlled fits and repeat production.

Custom turned shafts, bushings, sleeves, threaded components and combined turn-mill parts, supported by drawing review and international project coordination.

±0.005 mm*High-precision turning
Threads & BoresDrawing-defined features
Turn + MillCombined operations
Inspection PlanCritical fits identified

Custom CNC turned parts

CNC turning rotates the workpiece while cutting tools form outside diameters, bores, grooves, shoulders, tapers and threads. It is commonly used for rotational components where diameter, concentricity, runout and surface finish influence assembly performance.

Some components combine turned geometry with milled flats, cross holes, slots or off-center features. Share the complete drawing so all operations, setups and inspection requirements can be reviewed together.

Features that need clear definition

Specify thread standard and class, critical fits, bearing seats, sealing surfaces, bore depth, concentricity and runout requirements. Long slender sections, deep bores and thin walls may require additional process review.

Planning for repeat orders

Tell us the initial quantity and forecast repeat volume. This helps the team evaluate material preparation, tooling, process control and the inspection approach rather than treating the first order in isolation.

Turning tolerance reference

RequirementWhat to specifyHow it is reviewed
Diameters and fitsNominal size, tolerance or fit classTooling, stability and gauge method
ThreadsStandard, pitch, class and depthTool access and verification method
Runout / concentricityDatum and control valueSetup plan and inspection approach
Surface finishRa requirement and functional surfaceMaterial, operation and measurement

*A tolerance such as ±0.005 mm is only applied where the material, geometry, process and inspection method support it.

Questions buyers ask

Can one component require both turning and milling?

Yes. Parts may combine rotational features with flats, holes or slots. The complete drawing allows the operations and datum relationships to be planned together.

What information is needed for a threaded part?

State the thread standard, nominal diameter, pitch, class, engagement length and whether a gauge or other verification is required.

How are tight fits confirmed?

The drawing must identify the mating feature and fit requirement. The team then reviews process capability and the practical inspection method before confirming the tolerance.

See photographed turned products and factory examples →

Discuss your turned component.

Send the drawing and highlight the dimensions that control assembly.

Request a Turning Quote →
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