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Solid polyurethane wheel, high operation comfort, and excellent floor preservation. Rim made of pressed steel. Hub on ball bearings and axle (bolt hole space 180mm, 210mm,325mm).

Wheel made of high-quality, impact-resistant nylon, very low rolling and swivel resistance, smooth running performance on even floor, high abrasion resistance. Hub on plain bore. Medium duty castor in zinc-chromium plated pressed steel turning on double rim of balls.

Wheel made of high-quality, impact-resistant nylon, very low rolling and swivel resistance, smooth running performance on even floor, high abrasion resistance. Hub on plain bore. Medium duty castor in zinc-chromium plated pressed steel turning on double rim of balls.

Wheel coated with solid rubber, low-noise operation and very good floor preservation. Rim of zinc-chromium plated pressed steel flanges. Hub on roller bearing. Medium duty castor in zinc-chromium plated pressed steel turning on double rim of balls. Assembled with self-locking nut and dust protection.

Wheel coated with polyurethane, low-noise operation, low rolling resistance, good floor preservation, high abrasion resistance, high cut and tear propagation resistance and non-marking, very good chemical connection with the rim. Rim of die-cast aluminum. Hub on shielded ball bearings with central spacer. Medium duty castor in zinc-chromium plated pressed steel turning on double rim of balls. Assembled with self-locking nut and dust protection.

Wheel coated with heavy duty solid rubber (Soft Elastic), very high operational comfort, low-noise operation, very good floor preservation, non-marking, very good chemical connection with the rim. Rim of high quality, impact-resistant nylon. Hub on roller bearings. Medium duty castor in zinc-chromium plated pressed steel turning on double rim of balls. Assembled with self-locking nut and plastic dust protection.