Jaw Couplings REK … DHO elastic for dynamic applications with enclosed elastic elements and two piece hub Features • Compensation of axial, radial and angular misalignments • Adsorbs vibrations • Progressive torsion spring properties due to primarily pressurised elastic elements • Fail-safe in the event of the failure of the elastic elements • Easy replacement of elastic elements without disassembly of the coupling halves • Maintenance free, no lubrication necessary • Elastic elements can be replaced without moving the drive • Complies with ATEX 2014/34/EU 44-1 Hub A, type 0 Elastic elements Hub B, type II • Typical application: Pump drives, ventilator drives, crane trolleys Order example Coupling design Coupling size Material of the hub: • Cast iron Hub A, type: • 0, elastomer part Hub A, design: • finish bored with keyway • roughbored Hub B, type: • II, two-part, hub with jaw ring Hub B, design: • finish bored with keyway • roughbored Elastic elements: • NBR 75 Shore-A • PU 92 Shore-A • HTrans

Jaw Couplings REK … DHO elastic for dynamic applications with enclosed elastic elements and two piece hub Moment of inertia with max. bore Type 0 Coupling size Permissible misalignments Axial For finish bores, please specify bore diameter hub A and hub B. Tolerance of finish bores H7. Keyways in accordance with DIN 6885, sheet 1. Keyway tolerance JS9. For vertical installation, please contact RINGSPANN. See following pages for performance data. * Bores also available in inch size, see page 65.

Jaw Couplings REK … DHO Elastic elements Elastic element NBR 75 Shore-A Elastic element PU 92 Shore-A Nitrile rubber Coupling Nominal Nominal size torque power at TKN 100 min-1 PK100 Alter nating torque TkW Torsional stiffness CT dyn Nm/rad x 103 1,0 Coupling Nominal Nominal size torque power at TKN 100 min-1 PK100 Alter nating torque TkW Torsional stiffness CT dyn Nm/rad x 103 1,0

Jaw Couplings REK … DHO Elastic elements Elastic element HTrans Material: Temperature range: -30 °C to +120 °C Colour: Coupling Nominal Nominal size torque power at TKN 100 min-1 PK100 Alter nating torque TkW Torsional stiffness CT dyn Nm/rad x 103 1,0