Rollers PVC-STEEL rollers with resin polyamide PA or steel ACC pinion driven by tangential chain or chain with links in serie. The diagrams and tables on pages 66 and 67 show the dimensional characteristics and minimum and maximum lengths of manufacture. The rollers are produced in the following versions:
- with pinion integral to the jacket for continuous transport;
- with pinion clutch for stockpiling transport and in connection of machines operating at different speeds.
Polyamide resin PA pinions, both integral in Series 663.13 and 663.14 and friction in Series 663.20 and 663.21 are interchangeable. Motor-driven rollers with integral resin PA pinion can reach peripheral speed v = 1 [m/s] max. The speed of motor-driven rollers with steel ACC pinion must not exceed v = 0.5 [m/s]. Friction rollers, with both PA and ACC pinion, operate at speeds between v = 0.3 ÷ 0.5 [m/s] max. Normal operating temperature, TN:_5 ÷ +50 [°C].