The WR straightening roll series is designed to guide and straighten material being processed thru straighteners. The WR rolls are designed and built in the German tradition of high quality and have a tolerance of 620 DIN.
Witels’ straightening rollers are generally sealed or shielded on both sides and are lubricated at the factory with high-quality lithium soap grease and extremely adhesive oils which assure a lifetime lubrication. In the case of very unusual working conditions like: low and high temperatures, high speed, humidity, chemical fumes or dust, it is possible to lubricate the rollers again or possibly to use other kinds of grease. The lubricating oils are normally used from -20 °C to +140 °C.
This roller suits a wide variety of applications. They are available in 4mm diameter up to 240mm diameter with both vee grooves as well as “U” grooves. On a custom basis, other types of profiles are also possible.
This high quality and robust designed roller is suited for wire applications but also is used for tubing, cable and other materials. Witels’ straightening rollers are made of high quality ball-bearing-steel: 100 cr 6 SVERKA and UHB ARNE. The ball-cage is of thermo-stable polyamide 6.6.