Steel Ball Transfer Unit

The Steel Ball Transfer Unit is an allmetal rolling component built for the toughest applications. It is designed for heavy machine tools, large mold handling, port machinery, and industrial robots where strength and precision are critical. Its solid steel construction provides the capacity to handle heavy weights and high-speed movements without bending or wearing out prematurely. The product operates smoothly even under continuous heavy use.

Both the body and the main ball are made from highstrength alloy steels. The body uses S45C carbon steel, and the ball uses SUJ2 bearing steel. All loadcarrying parts are quenched, tempered, and precisionground. The ball roundness error is less than 0.003 mm, and surface roughness is below 0.2 µm. The unit can be zincplated, chromeplated, or finished with black oxide. Zinc plating is thicker than 15 microns and offers over 200 hours of salt spray protection, keeping the Steel Ball Transfer Unit rust-free outdoors and in wet conditions.

Each Steel Ball Transfer Unit can support up to 200 kg in static use. In dynamic conditions, it lasts more than 5 million cycles. The allsteel construction maintains dimensional stability even at high temperatures, functioning reliably from –30°C to +120°C. The ball fits tightly in the body with a gap smaller than 0.02 mm, ensuring very accurate positioning. Versions are also available with grease fittings and dust seals, making the unit nearly maintenancefree.

This is the rugged choice for heavy industry and highend automation. During installation, use highstrength bolts and ensure the track is flat and solid. The product has been tested in steel processing, shipbuilding, and heavy machinery. It can replace slide rails or ordinary rollers, improving transmission efficiency by more than 40%. Its long service life and minimal maintenance requirements make the total cost of ownership highly attractive.

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