Material Version 310: Housing: Steel, zinc-plated.  Ball cup: Steel, case hardened.  Ball: Steel, hardened.

Material Version 320: Housing: Steel, zinc-plated.  Ball cup: Steel, case hardened.  Ball: Stainless steel, hardened, Material No. 1.3541.

Premium ball transfer unit, for low noise pollution and long service life. Due to the special shape of the top part,

an assembly plug should be used. With felt seal. Conveying speed max. 2m/sec. Temperature range -30°C to +100°C.

Note: Due to unevenness of the running surface, there are often only three rollers carrying the weight.

Therefore the chosen load rating should equal at least one third of the load.

Max. distance of ball transfer units = edge length of the object divided by 2.5.