Key parameters for steel wheel dimensions
Diameter: Rim flange diameter (distance from the hub centre to the rim flange)
Width: Distance between the two rim flanges
Profile code: Rim flange shape classification (e.g. J, JJ, K, etc.)
Construction Type: One-piece (x) or Multi-piece (-)
Steel wheel dimensions are defined primarily by the formula 'Diameter × Width + Profile Code', supplemented by parameters such as construction type, offset and PCD. Different specification series are categorised according to application and load rating; when selecting wheels, it is essential to ensure strict compliance with vehicle and tyre requirements.
Main applications
| Vehicle type | Typical applications | Job characteristics |
| Skid-steer loader | Loading and unloading at construction sites, street cleaning | Turning on the spot; high wear resistance required |
| Wheel loader | Earthworks, material handling | Heavy loads at low speeds, frequent steering |
| Agricultural machinery | Tractors, combine harvesters | Field work, puncture resistance required |
| Special-purpose vehicles | Airport ground service vehicles, mining vehicles | Special operating conditions, bespoke design |
Frequently Asked Questions
Confusion over sizes
16.5 inches ≠ 16 inches; tyres and steel wheels of these sizes are not interchangeable. Forcing a fit may result in seal failure and a risk of tyre blowouts.
Overloading
Steel wheels have a maximum load rating; overloading can cause the rim to deform or fracture.
Improper installation
Uneven bolt torque can cause the rim to wobble, affecting driving stability and tyre life.
Neglected maintenance
Regularly check steel wheels for deformation, corrosion and bolt tightness to extend their service life.
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