Introduction

A Company with Pedigree

Rathi Turboflex Private Limited is a joint venture with Bibby Transmissions Ltd. of UK.

We has been a market leader in flexible couplings & engineering solutions for rotating equipment continually for over 80 years.

We first developed the profiled disc coupling in 1958 and have constantly produced units for the "High Performance" market since that date. Consequently we offer over 40 years of, unbroken, design and manufacture of high performance disc couplings with tens of thousands of operational units. The latest developed models are shown in this brochure (HS range).

Our policy of continuous development using the latest technology in both hardware and software, combined with our commitment to product excellence, enables us to maintain our position at the forefront of our market. In conjunction with our unrivalled experience, this also means that we are able to offer assured disc coupling solutions to precisely meet customer’s application requirements, with virtually no limit in torque or speed.

An unrivalled knowledge of applications enables us to assist in the selection of the correct type of coupling design. Our own parametric design software enables us to produce couplings that offer the optimum solution for any application.

Please feel free to contact us with details of your specific requirements. We operate an ISO9001 approved quality system and all our products are produced on modern, high accuracy, CNC machinery.

We offer a comprehensive range of couplings and torque limiting systems, many of which can be used in conjunction with the Rathi Turboflex disc coupling. For details, please contact our sales team.

HS High Performance Couplings

The operating principle of disc couplings means that they can be designed using any even number of bolts (4 or above). Half these bolts fit to the "Driving" side and half to the "Driven" side. Hence, in a coupling with a total of 6 bolts (6HS), drive is through 3 bolts. This means that, for a given diameter of coupling, more torque can be transmitted through the 8-bolt (8HS) unit than the 6-bolt (6HS) coupling. However, as the number of bolts increases on a given diameter, the ‘span’ between them decreases and, hence, so does the flexibility of the discs.

The 6-bolt units have the higher flexibility and the 10-bolt units the higher torque capacity. The 8-bolt (8HS) units offer a compromise of flexibility against torque capacity and are often a good starting point if misalignment expectations are unknown.

Rathi Turboflex operate a "Parametric Design Philosophy". The sizes stated here are for standard units. If the design does not exactly fit your application we are able to optimise the coupling without any variation from the well-established and proven design principles.

Larger or smaller sized units are available upon request.

Rathi Turboflex’s design preference has always been for transmission of torque through the disc assembly joint in friction.  This eliminates the potential for fretting during normal operation and prolongs the life of the coupling.

Materials

Standard design uses alloy steel for the major components and bolts but alternative materials are always available for higher stress operation, reduced mass and adverse environments. These include titanium alloy, aluminium alloy, stainless steel, Duplex or Super-Duplex steels and any other material to meet customer’s requirements.

The flexible discs are normally manufactured in stainless steel but alternative options (including Inconel & Monel) are available to suit specific environments.