Drive Tech Solutions Khed Shivapur, Pune, Maharashtra

SERVOPLUS bellow couplings are the perfect coupling in all servo motor applications where high torsional rigidity, truly backlash free torque transmission, low inertia and superior reliability are required. The innovative modular system allows quick delivery and competitive cost advantage.

Standard version with single disc pack. The coupling allows axial and angular misalignment. No radial misalignment is allowed.

Protection muffs in special neoprene rubber. Resistant to acids, oils, greases, dust and moisture. Filled with grease, ensure constant lubrification.

It allows compensation of high axial, radial, angular misalignment. Moreover, the use of the double spider allows for double the torsion angle and provide very high damping effect.

This series allows to join two shafts (even very distant) through two TRASCO couplings and an intermediate shaft (length “Lw”) of customized dimension.The presence of two polyurethane rings allows high damping capability and large radial misalignments. Hubs are classically made from cast-iron, while shafts are from steel; though, different materials can be used, accordingly to different application.

This series allows to join two shafts (even too spaced) through two TRASCO couplings and an intermediate shaft (length “LR2”) of customized dimension, fixed with hubs through shrink-disc. The presence of two polyurethane elements allows high damping capability and large radial misalignments.Hubs are classically made of cast-iron, while shafts are made of steel; though, different materials can be used, accordingly to different application.

The series with flanges has been developed for applications on heavy machinery and to combine different shafts and flanges solutions. • Shaft-shaft: using two hubs type “BF”, allows the replacement of the elastic element without traversing of either motor-machine or driven-machine. • Shaft-flange: using one hub type “CF” and one type “GR”. • Flange-Flange: using two hubs type “CF”.

The GRF C series has the same characteristics as the BF series, while being compact in dimension.

This execution has been introduced to incorporate advantages offered by the SIT- LOCK® locking elements in the shaft-hub connection .The system allows for a quick, safe and backlash free mounting without the use of keyway and eliminating the need for lock washers, spacers and stop rings. Many different solutions may be created to solve all kinds of application needs. We include hereunder a very useful example.In fact, the same hub bore allows the fitting of different shaft diameters.

TRASCO couplings type GRB are manufactured in cast iron GG25. They combine the typical high performances of standard couplings with the mounting and dismounting advantages offered by the SER-SIT taper bush: - they are ready to be mounted; - they are manufactured in two different executions: B1 and B2 • they solve the problem of fretting corrosion; • hubs type B1 may be axially moved for spider replacement; • they may be used in all types of machinery.

This series has been developed to suit drum-brake (FRT) transmissions. It is constituted as a elastic coupling screwed to the brake band. Components are either madeof cast-iron (G25), spheroidal cast-iron (GS400) or steel, accordingly to application. Also, assembling of different dimensioned brake bands to any kind of coupling is allowed: see below tables

In the base execution, “GR” TRASCO® couplings are available in two different versions: precision “P” or economy “S”. The difference between “P” and “S” type hubs is that in the precision execution the circular sections of the hubs are precision machined, while in the economy execution they are simply deburred. The “S” version allows lower axial displacement as indicated in the technical performance table. Hubs are available in cast iron GG25, die cast aluminium alloy or forged aluminium. On special request hubs are available in steel or cast iron GGG40.TRASCO® couplings are dimensionally manufactured to hub types “A” , “B” and "L" (long hub execution).

This execution allows higher misalignements.The 2 spiders allow a very hihgh vibration dampening providing a deacrese in drive noise and a longer life of related components (ex bearings).The intermediate element is made of aluminum alloy and mey be used in combination with any type of hub execution.

This type of coupling permits quick, sure fixing without any shaft-hub backlash. With the keyless coupling type, the torque applied for tightening down the screws (Ms) must be as given in the catalogue. The M coupling type is available with or without keyway.

The hubs of the standard coupling type can be either solid or have a finished bore, the diameter of which corresponds to any one of the standard shaft diameters. The grubscrew(s) is (are) located 180° or 120° from the key seat. Both the solid hub and bored hub coupling are generally available from stock for quick delivery.

This type of coupling provides excellent kinetic uniformity. Furthermore, the absence of keys or grubscrews, makes it a very well balanced coupling and greatly facilitates installation and removal. An exact radial axial positioning is very easy for those applications which requires it. The absence of keyways also avoids fretting corrosion and backlash between the shaft and the hub. This is the ideal type of coupling for applications requiring precision andor high rotational speeds.

This zero backlash execution, allows to connect long distance shafts in applications such as lifting screwjacks, gantry robot etc..The intermediate shaft is made of steel but may be of different material for specific need.The presence of 2 spiders, increases the dampening properties and allow high misalignements

Standard version with double disc pack and standard length spacer. Double disc pack execution with anti-fail device. Various spacer lengths available for pump applications.Conforms to API610 - API671.

Standard version with double disc pack and standard length spacer. Coupling allows axial, angular and radial misalignment.

Standard type made of a single hub and one sleeve. It is also available in long hub execution. Offers an economical solution in applications without radial misalignment.Maximum bore in the table is valid for keyway seat DIN 68851.

STCF A-B-C range conforms to AGMA specifiations with regard to flange dimensions, type, and positions of the screws. They are interchangeable with any coupling half.

Locking assembly with single taper design. The flange design prevent axial movement during installation. SIT-LOCK® 8 has a very small axial dimension, is self centring and has been designed to suit various shaft diameters although the overall dimensions are the same. SIT-LOCK® 8 is recommended for applications with medium torques which need a good axial positioning. The limited number of screws make the installation fast.

Locking assembly with single taper design. Provide good concentricity and self centring. It is recommended for medium torques and is self-centring. The flange design prevent axial movement during installation. It is suitable for applications with medium torques, which need a very precise axial positioning.

Locking assembly with single taper design. Provide good concentricity and self centring. A small axial movement of the hub during the installation operation may occurr. Applications in need of an accurate axial positioning are not recommended with this type of locking assembly. SITLOCK® 6 is suitable for applications with medium torques.