Aluminum Wheel Core

Aluminum Wheel Core belongs to the metal brush core material group, supplied as machined wheel center, extruded or turned hub, flanged core and anodized aluminum body.

Aluminum Wheel Core is used in custom cleaning brushes for wire, abrasive and buffing wheels that need a machined bore, low rotating mass and controlled balance.

Compare Aluminum Wheel Core with Steel core, stainless core, engineering-plastic core. Change material when wet stiffness, temperature, chemical resistance, conductivity, particle shedding, or surface marking becomes the limiting factor.

Aluminum Wheel Core is rigid; determined by alloy, temper and geometry rather than the generic aluminum name; aluminum Wheel Core changes brush stiffness through filament diameter, free trim, density, crimp, and contact. Use finer filament and longer trim for conformable contact; use coarser filament, shorter trim, or higher density for stronger displacement or cutting.

The part people get wrong: this component does not set brush stiffness. It holds the fill and takes the mounting load, and the scrubbing pressure comes from the filament specified separately.

Suitable for many wet environments with the correct alloy and finish, not automatically for strong alkaline or chloride service.

What this means for your application: the core holds its dimensions wet or dry. The risk is the alloy and the finish: strong alkaline cleaners attack bare aluminium, and chlorides pit it under the anodised layer.

A practical check: expose a sample to the real cleaning chemistry at temperature and inspect the surface. Dulling, bloom or pitting means the finish is wrong, and re-measuring will tell you nothing.

Aluminum can support elevated-temperature rotary constructions, but the finished brush limit is set by alloy/temper, hub section, filament, adhesive or mechanical anchoring, bearings, speed, and atmosphere. Do not use a generic “above 200°C” claim without assembly data.

Where it stops working: validate with a sample if the process sits near the top of that band. A permanent bend under load means the answer is a higher-temperature filament family, not a heavier trim.

Diameter, trim length and applied load all shift the real limit, so a thin filament touching lightly survives conditions that would flatten a thick one under pressure.

Many 6000-series alloys offer useful atmospheric corrosion resistance; direct contact with dissimilar metals can cause galvanic corrosion.

Compatibility is a function of concentration, temperature and contact time together. A short rinse in a dilute solution is a different exposure from an overnight soak in a concentrated one, even with the same chemical on the label.

Before you commit to a quantity: Specify the exact Aluminum Wheel Core grade or alloy, filament or profile size, color, straight or crimped form, working temperature, wet or dry use, chemical exposure, surface finish, and any required material documentation.

Filament diameter does not apply to Aluminum Wheel Core. It is a brush component rather than the fill, so it carries no filament of its own and sets no lower diameter limit.

The dimensions that do decide it are the bore or mounting size it has to fit, its wall section or thickness, and the hole pattern that receives the fill. Those come from the machine interface, not from the cleaning task.

If the sample comes back rejected: fix the component dimensions against the equipment first, then choose the fill material and its diameter for the residue you are removing. The two are specified separately.

Wire, abrasive and buffing wheels that need a machined bore, low rotating mass and controlled balance.

The applications that keep coming back to this grade:

• Ceramic Glaze Line & Tile Brush Use
• Surface Finishing
• Deburring & Edge Breaking
• Metal Acid Pickling & Degreasing Line Brush Use
• Polishing
• Woodworking Sanding & Furniture Surface Brushing

The constructions that usually carry it:

• Custom Wheel Brushes

In practical brush terms: Wrong alloy, insufficient hub section, galvanic corrosion or an incorrect motion rating can cause failure.

Send the brush type, filament diameter, free trim length, density, contact setting, wet or dry duty, working temperature and the actual cleaning chemistry together. Any one of them on its own leaves the stiffness undefined.

What usually goes wrong at this step:

• Selecting Aluminum Wheel Core from the material name alone without setting filament diameter, trim length, and density
• Using dry stiffness to predict wet behavior without checking moisture absorption or liquid exposure
• Ignoring trapped abrasive particles, chemical concentration, temperature, or contact motion when assessing surface risk

Reference standards behind the figures on this page: ISO 6344 series.

Source: Hydro — Aluminium extrusion alloys. An aluminium core is specified by alloy and temper, and the running limit belongs to the assembled wheel rather than to the metal. Balance and bore tolerance decide whether it can be run at speed at all.