RINGFEDER POWER TRANS

RFN 7012-680

Overview

• The New Locking Assembly series RINGFEDER® RfN 7012.2 is specially designed to fulfil the requirements of constantly increasing bending moments for conveyor pulleys
• The challenge was to develop a product with the same dimensions as the standard RINGFEDER® RfN 7012 to fit into existing end discs
• Yield point of end disc has to be checked so that also material handling equipment at hand can be upgraded
• The Locking Assembly should carry a multiple of the bending moments of the standard RINGFEDER® RfN 7012
• A special bolt for type RfN 7012.2 has been developed by RINGFEDER® for the increased requirements occurring when subject to loading by bending moments
• These special bolts guarantee loadings above strength class 12.9 at simultaneous higher expansion with regard to tensile strength and yield strength
• These bolts were manufactured specially for RINGFEDER® with qualified steel analysis
• Every bolt is labelled with RPT-B and the batch number as this allows every bolt to be traced back to manufacture
• The benefit of this bolt is the considerably increased fracture resistance under additional bending stress