Knurled Aluminum Bushing with Stepped Bore

Knurled Aluminum Bushing with Stepped Bore
Knurled Aluminum Bushing with Stepped Bore

Aunov Tech manufactures the Aluminum CNC Machined Motor End Rings in aluminum on a single production floor. Once installed, the CNC machined part delivers the precise turned or milled geometry the assembly mounts to. Forming and machining share equipment, staff and batch records, which keeps tolerances consistent from sample to volume without re-quoting the job elsewhere.

Product overview

For this aluminium ring, the drawing centres on, the forming route, the tolerance band and the sealing faces, each measured at first article and gauged on production batches.

Die work and machining for this aluminium ring sit on the same floor, which keeps revision loops short and samples fast, with the tooling history retained in house.

How it is manufactured

This is how the aluminium ring is built: Bar stock is sawn and then machined on CNC turning and milling centres; cycle time and tool life are recorded per part number.

Each knurled bushing shipment is verified against the master sample before it leaves the shop. The signed knurled bushing sample remains the reference and is kept with the job file.

Materials and surface finish

Standard stock includes cold-rolled steel (SPCC / DC01), 304 / 316 stainless, aluminium, brass, copper and bronze and the grade agreed for this aluminium ring is aluminium.

Coating and polishing are matched to the end use: electrophoresis, powder coating, anodising and zinc / nickel plating. It is written into the drawing for this aluminium ring, so it cannot drift between batches.

Each knurled bushing shipment is verified against the master sample before it leaves the shop. The signed knurled bushing sample remains the reference and is kept with the job file.

Quality control

The factory operates with ISO 9001 certification: stock arrivals are checked against mill certificates, first-article geometry is confirmed on the CMM, and routine sampling keeps batches aligned with the first article. The knurled bushing first article is measured on the CMM and thread gauges confirm class. Torque, leak and pressure tests are available where the assembly needs them, and the batch file carries the results.

Applications

The aluminium ring is specified into industrial and appliance assemblies for OEM and Tier-1 customers.

One drawing for this aluminium ring is commonly applied to several programmes, so the finish is chosen to cover the harshest of them, and approvals carry across programmes.

Options and variations

Frequently varied options in this knurled bushing family

The usual variables are material and finish for the service environment, thread classes, seat finishes, milled features, cross-holes and plating or anodizing to the print, and volume – from validation prototypes to scheduled call-off batches.

Quotes show which options the current die already supports, making the cost of each choice clear before you commit.

Specifications

ItemAluminum CNC Machined Motor End Rings
BrandAUNOV
DesigningYour drawing sets the part – samples are reverse-measured into a controlled drawing; changes are priced before they are made.
ToolingDie design and toolmaking stay in house, so the die charge appears as its own quotation line, and first-article timing is measured from the tooling start date.
SamplesFirst-article samples ship with a dimensional report and material certificate, so the part is proven before it is made in volume, and the signed sample is kept for future reorders.
Materials1050 / 3003 / 5052 / 6061 aluminium, 0.5-3.0 mm stock – temper matched to the forming depth or machining route of this ring.
Surface finishFinish selected from the drawing: plating, coating, anodising or passivation; finish thickness and adhesion checked on the first article.
ProcessingCNC turning with milling and drilling in as few setups as the geometry allows; first articles verify the whole flow before the run is released.
EquipmentCNC turning centres with bar feeders and 3-/4-axis machining centres; first articles and batch samples are checked on the CMM.
Tolerance+/-0.005 mm achievable on ground faces where the print demands it; critical dimensions carry CMM data with the shipment.
Delivery termsFOB Ningbo or Shanghai, payment by T/T or L/C, quoted in USD or EUR; repeat orders reuse the approved first article.

Packing and shipment

For this aluminium ring, protection starts at the surface: interleaves, bags or trays are matched to the surface treatment, in sealed export cartons, palletised and marked as you direct.