For the big drive

Safe and accu­rate trans­mis­sion of torques is essen­tial for pre­ci­sion dri­ves of cross cut­ters. This is ensured by the use of steel bel­lows cou­plings with force-fit­ted shaft-hub connection.

The met­al bel­lows cou­plings of the KXL series from Jakob Antrieb­stech­nik were designed for medi­um and large dri­ves up to a max­i­mum of 65,000 Nm. A spe­cial design fea­ture is the three-piece design with a flex­i­ble bel­lows pack­age as an inter­me­di­ate piece. This remov­able inter­me­di­ate piece, con­sist­ing of an opti­mized, tor­sion­al­ly stiff stain­less steel bel­lows with 2 bel­lows shafts per side and a vari­able length inter­me­di­ate pipe, is fric­tion­al­ly con­nect­ed (screws ISO 4017 / 10.9) with the two hubs. This results in a con­sid­er­able ease of assem­bly, as e.g. can be omit­ted in the main­te­nance or ser­vice case a cost­ly dis­as­sem­bly of the heavy dri­ve or dri­ven units. The design­er has sev­er­al hub vari­ants avail­able for the spe­cif­ic appli­ca­tion. The extreme­ly favor­able moment of iner­tia and the rota­tion­al­ly sym­met­ric design ensure good dynam­ic per­for­mance. The KXL cou­plings are par­tic­u­lar­ly suit­able for pre­cise dri­ves, such as for print­ing press­es, cross cut­ters, main spin­dle dri­ves, trans­fer axes or trans­mis­sion con­nec­tions. A media trans­port or a par­al­lel dri­ve train through the cou­pling inte­ri­or is basi­cal­ly pos­si­ble. The con­nec­tion to the shafts can be done either as a con­i­cal clamp­ing ring hub or as a flange hub.

Hub Type A

Fric­tion­al, back­lash-free con­i­cal clamp­ing ring con­nec­tion — out­side – bel­lows pack­age radi­al­ly freely remov­able. For the over­all length “L4”, the axi­al length­en­ing of the bel­lows pack­age of 4 mm is already tak­en into con­sid­er­a­tion dur­ing assembly.

Hub type B

Fric­tion­al, back­lash-free con­i­cal clamp­ing ring con­nec­tion — inter­nal bel­lows pack­age radi­al NOT freely removable.

Hub Type F / G

Mount­ing flange accord­ing to ISO 9409 or cus­tomer spec­i­fi­ca­tion — cen­ter­ing out­side or inside. Dimen­sions of flange hub F and G of L13, L19 and D6, D9, D10, D11, D12 accord­ing to cus­tomer specifications.

Hub Type A / B

Fric­tion­al, back­lash-free con­i­cal clamp­ing ring con­nec­tion — out­side / inside. Bel­lows pack­age radi­al­ly NOT freely expandable