Backlash free jaw spacer coupling «in alluminium» ``GAS/SG-AL``
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romfnTec Technology for Safety

GAS/SG-ST - backlash free jaw coupling «in steel»: introduction Made in steel fully turned with standard phosphating treatment. Several elastomer hardnesses available (page 27). High torsional ridigity. Electric insulation between the parts. Statically balanced. Version with integrated locking assemblies (GAS/SG/CCE page 29). ON REQUEST Conformity to directive ATEX possible. Specific surface treatments or fully stainless steel version. Customized manufacturing for specific requirements. Connection to the Torque limiter's (safety coupling) range possible. The coupling GAS/SG is an...

SG ELASTIC ELEMENT: PHYSICAL CHARACTERISTICS ■ SG ELASTOMERIC ELEMENT: TECHNICAL CHARACTERISTICS ■ 27 ■ Only for GAS/SG-AL version (page 33)

Torque transmitted [Nm] according to the 0 finished bore [mm]

NOTES ■ • The weights refer to the coupling with minimum bore. • Inertias refer to the coupling with maximum bore. • For choice and availability of different hub connection type see pages 4 and 5.

30 GAS-ST - standard jaw coupling «in steel»: introduction Made in steel fully turned with standard phosphating treatment. Several elastomer hardnesses available (page 31). High compensation of misalignments. Vibration dampening. Statically balanced. Modularity of the components, with different assembly versions. ON REQUEST Conformity to ATEX directive possible. Specific treatments or version fully in stainless steel. Manufacturing made to length and customizations for specific needs. Connection to the Torque limiter's (safety coupling) range possible. The coupling GAS/SG is an elastomeric...

■ TORQUE PERMISSIBLE WITH HUB CONNECTION TYPE B A On request• The weights refer to the coupling with minimum bore. • Inertias refer to the coupling with maximum bore. • For choice and availability of different hub connection type see pages 4 and 5.32 ■ TECHNICAL CHARACTERISTICS

Made in aluminum fully turned. Elastomer available in different hardness (see pages 24 and 31). Weight and inertia reduced. Electrical insulation between the parties. Statically balanced. Modular components with different locking systems on the hubs. ON REQUEST Single split clamp hub with H7 bore and keyway (type B1). Two piece clamp hub with H7 bore and keyway (type C1) Conformity to Directive ATEX possible. Customized manufacturing for specific requirements. • The weights refer to the coupling with minimum bore. • Inertias refer to the coupling with maximum bore. • For choice and...

GAS/SG/DBSE-AL - backlash free jaw coupling with spacer «in aluminiums technical data Made of aluminum fully turned. Elastomer available in different hardness (see pages 25 and 29). Simple mounting thanks to the two piece clamp hub (type C). Radial assembly without removing the parts. Electrical insulation between the parts. Spacer with DBSE custom made. ON REQUEST Two piece clamp hub with keyway (C1). Various hub connection types available. Conformity to Directive ATEX possible. Dynamic balancing up to Q=2.5. Torque transmitted [Nm] according to the 0 finished bore [mm] TORQUE PERMISSIBLE...

GAS/SG/DBSE-AL - backlash jaw coupling with spacer «in aluminium»: additional information APPLICATION EXAMPLE For DBSE> 3 m with high speed, it is necessary to use an intermediate shaft with support and bearing. The model with a central spacer "GAS / SG / DBSE-AL", in addition to being essential for connecting transmission drives spaced apart. Is able (unlike the classic model GAS/SG) to recover, as needed, up to twice the angular misalignment (picture 2) and axial (picture 3) or a high radial misalignment (picture 1) according to the formula: Where: = radial misalignment [mm] K Ltot =...

GAS/SG & GAS - backlash free and standard jaw coupling: selection for motors Electric motor ■ Only for GAS/SG-AL version (page 33) NOTES ■For the choice of the coupling, is considered a safety factor of 1,5 on the nominal torque and an ambient temperature of 27 °C

GAS/SG & GAS - backlash free and standard jaw coupling: additional information APPLICATION EXAMPLE Servomotor Servomotor Recirculating ball screw GAS/SG + torque limiter DSS/SG (safety coupling) DIMENSIONING For pre-selection of the coupling's size you can use the generic formula indicated on page 6. Having established the coupling's size to be used, it is possible to make other checks considering further parameters: Cnom > Cmot • fT • fR Juti Jmot + Juti Juti Jmot + Juti Dove: Calt = alternate system torque [Nm] Cnom = theoretic nominal torque of the coupling [Nm] f F = resonance factor =...

This coupling does not require particular procedures for assembly. It can be assembled both vertically and horizontally. 1) Achieve radial and axial alignments as precisely as possible, in order to have maximum absorption of possible misalignments and life of the coupling. 2) Assemble the two half-hubs on the shafts. Check that the external parts of the two shafts do not exceed the relevant half-hub's surface (quote "N") and fix this one to the shaft with its relevant fixing system. 3) Assemble the elastomeric element on one half-hub and close the other inserting the relevant teeths into...