The ideal connection

In the man­u­fac­ture of met­al bel­lows cou­plings, bel­lows and hub con­nec­tions are a crit­i­cal issue. While steel or stain­less steel cou­plings can be com­bined with a spe­cial micro plas­ma weld­ing process, this method is not suit­able for com­bi­na­tions of alu­minum and steel. Adhe­sive bond­ing process­es can be used here, but they can fail under extreme oper­at­ing con­di­tions (chem­i­cals, very high or low tem­per­a­tures). Espe­cial­ly in the case of clutch­es on the input side of a plan­e­tary gear, high tem­per­a­tures can occur in crit­i­cal appli­ca­tions which could loosen the adhe­sive bonds.

The devel­oped and long-time patent­ed join­ing process (crimp­ing-in-press process), on the oth­er hand, is opti­mal­ly suit­ed for con­nect­ing mul­ti-lay­er stain­less steel bel­lows with­out clear­ance to alu­minum hubs. Here the oper­a­tion is cer­tain­ly pos­si­ble even in tem­per­a­ture ranges from ‑50 ° C to + 350 ° C.