Kolkata, West Bengal, India
Our Products
Highly flexible & resilient
Absorbs Large Misalignment
Low Torsional Stiffness
Dampens shock & Vibration
Flexible element easily replaceable insitu
Ideally suitable for Diesel Engine Drives, Fans , Mills , Compressors , Rolling Mills, Pumps, Conveyors, DG Sets
Available for reputed makes of DieselEngines & Compressors.
Custom Design for special requirements
Torsional Vibration Calculation on request
No lubrication , Minimum Maintenance
No expensive Downtime
Flexible element is made of rubber reinforcedwith Nylon Chords.
Available in PH, PX, TC & U Series.
PH Series has largest range. These haveflexible member firmly bolted to clampingelements .There is no possibility of Tyre
slipping out even in case of imperfectinstallation.Available for maximum torques upto 420000Nm. Coupling Tyre Diameter upto 1250 mm.Couplings with Brake Drum available.Also available with magic Grip Bushing forquick fitment and removal.
Camlocksalso called cam and groove coupling, a kind of hose coupling used to rapidly connect and disconnect fitting on piping or hose, they come in a variety of materials to be used with different media and a variety of sizes to accommodate hose or piping diameter.
We offer various sizes of camlock couplings to best suit our customers needs and requirements.
Sure Flex coupling can be installed quickly and easily, because there are no bolts, gaskets, covers or seals. Alignment can be checked with a straightedge placed across the outside of the precision-machined flanges. No special tools are needed for installation, alignment or removal.
TORSIONAL
Sure-Flex coupling sleeves have an exceptional ability to absorb torsional shock and dampen torsional vibrations. The EPDM and Neoprene sleeves wind-up approximately 15 torsionally at their rated torque. Hytrel sleeves will wind-up about 7.
ANGULAR
The unique design of the Sure-Flex couplings teeth allows for the absorption of angular misalignment without wear. Refer to page F118 for actual allowable misalignment limits. These limits allow for the alignment of the coupling using only a scale and calipers.
PARALLEL
Parallel misalignment is absorbed without wear or appreciable energy losses. The lateral flexibility of the coupling sleeve minimizes radial bearing loads normally associated with parallel misalignment. This feature also allows for easier installation by the use of components bored for slip fits without fretting corrosion occurring at the shaft. Refer to page F118 for parallel misalignment limits. Only a straight-edge and feeler gage are required to obtain these limits.
AXIAL
Sure-Flex couplings may be used in applications with limited axial shaft movements. The axial compressibility of the EPDM and Neoprene sleeves allows for shaft endfloat without the absolute transfer of thrust loads.
Bellows couplings combine stainless steel bellows and black anodized aluminium hubs to offer superior performance in motion control applications. The bellows are made of stainless steel, which makes them ideal for transmitting torque. Due to the bellows thin walls, the coupling is able to flex easily while remaining rigid under torsional loads. Parallel misalignment, angular misalignment and axial motion are accommodated by the bellows coupling.
The combination of aluminium hubs with the bellows results in an extremely lightweight, low inertia coupling. Zero backlash and a long, maintenance-free life are assured since the bellows coupling has no moving parts. An important feature of the bellows coupling is a balanced design to reduce vibration in high rpm applications of up to 10, 000 rpm. Bellows couplings are especially suited for high-end servo, stepper, encoder and positioning applications.
Unique PB Pin Bush Coupling is used in general engineering applications for reliable power transmissionunder normal shaft misalignments.Couplings dampen shocks and vibrations.Progressively increasing stiffness characteristics ofspecial shaped buffers ensure control of vibration amplitudefor protection of equipment.Couplings can take considerable overloads.Standard range has hubs of Cast Iron.For special applications couplings with forged steel hubsavailable.Also available couplings with Brake DrumCouplings with spacer.
Pin Bush coupling is a modified form of the protected type flange coupling. A Pin Bush coupling has pins and it works with coupling bolts. The rubber or leather bushes are used over the pins. The coupling has two halves dissimilar in construction. The pins are rigidly fastened by nuts to one of the flange and kept loose on the other flange. This coupling is used to connect of shafts which having a small parallel misalignment, angular misalignment or axial misalignment. In this coupling the rubber bushing absorbs shocks and vibration during its operations. This type of coupling is mostly used to couple electric motors and machines.
Our range ofResilient Couplings give you a combination of advantages of high power rating of a gear coupling and flexibility of elastomer coupling. They are easy to install and simple to maintain. The flexible grids are quickly replaceable without disturbing the connected equipment.
Resilient Couplings are available in broad range of sizes covering from 0.45 kW to 1307 kW per 100 rpm and bores upto 267mm.
CONSTRUCTION : A High torque Resilient Coupling basically comprises a grid spring which connects two hubs one on the driving and the other on the driven shafts through axially cut grooves around the peripheries of the two hubs. The spring, which is of special design compatible to the required characteristics of the system, form a series of resilient bridges along the grooves. The grooves are flared to allow the grid members long flexible spans under normal loads as well as better support by the sides of the grooves under over load conditions.
The stiffness of the spring and thus the coupling depends on the length of each flexible span not in the contact with the grooves. Subsequently, the contact length changes with every variation in torque, resulting in change in the stiffness of the coupling at every instant during a vibration cycle. Consequently this produces a powerful detuning action resulting in continuous alteration of the torsional vibration frequency and prevention of a build up of resonance in the system.
The principle of design adopted in Resilient Coupling, makes it capable to accommodate considerable axial, parallel and angular misalignment between a driving machine and a driven machine. Simultaneously, it can absorb considerable overloads due to high torque with consequent reduction in wear and tear on plants and machinery. With the use of resilient couplings, break-down and down time in any manufacturing unit, will be minimum.
With its unique wrap around Nitrile rubber connecting element, the Snap Wrap coupling eliminates the need for dismantling the connected equipment while inspecting or replacing the element – a major benefit when down-time on machinery can run into huge amounts.
Combined with a range of prebored hubs, a modular hub design and a spacer option, the Snap Wrap coupling is unsurpassed for quality, flexibility, speed of installation and maintenance.
Highly flexible coupling for a wide range of applications. For a maximum of design variants.
Based on a highly elastic rubber element subject only to compressive stress. Extremely high-performing design with high torsional elasticity. Dampens torsional vibrations and shocks and compensates considerable axial, radial and angular misalignments. Electrically insulating and thermally resistant in silicon design. For rupture-proof and backlash-free transmission of high torques.
Available as axially blind fitting design with radial mountability. Rubber element available as split element for quick replacement. Easy handling and mountable with minimum effort. In various lengths adaptable to the installation requirements if applied as homokinetic shaft. Also available as carbon-fibre or glass-fibre designs.
Torsionally stiff coupling with heavy duty performance. For resonance-free operation of diesel-hydraulic drives.
Based on a flexible element of heavy duty elastomer with built-in aluminium or steel bushes. Especially powerful and compactly dimensioned design with high torsional stiffness. Dampens torsional vibrations and shocks and compensates high axial as well as moderate radial and angular misalignments. At the same time very durable and economical. Oil-resistant and suitable for extremely high temperatures.
We offer a wide range of Brake Drum coupling both in Pin bush and Gear models.Coupling with brake drum is used for special application requiring quick stoppage of machine. We offer various different sizes in both pin bush and gear type couplings to suit all our customers requirements.
Rathi Disc Coupling couplings are fully metallic couplings, consisting of two adapters, one centre spacer member, twosets of stainless steel flexible membranes bolted togetherwith high tensile bolts. Replacement of flexible membranesis easy, simple and is possible without disturbing driveor driven equipment.
FeaturesRathi Disc-O-Flex couplings are available in three typesLM, EM and AM series.
TYPE LM
TYPE EM
TYPE AM
metaflex coupling specially designed for petrochemical industryspecial shape of discs to ensure pure tensile loadhigher flexibility with better torque ratingsunitised disc packsdrop down central spacer assembly with piloted flangeslarger bore capacitiescan be furnished to api 610 / api 671 requirements
series 80spl this is a simple variation of basic series80 design with large hub at one end. This is especiallysuitable for motor driven pumps where motor shaft dia ismuch larger than pump shaft dia. Coupling od/weight/inertia and costs are minimum in this style for a givendrive.
series 80sp this style is also a simple variation ofseries 80 with large hub at both ends and is suitable forapplications where both driving and driven shaft diametersare comparatively large.
series 80l this design is suitable when driving anddriven shaft dia are considerably smaller than max borecapacity of series 80 standard coupling. For such casesthis design gives light- weight and inertia. The design canbe supplied with comparatively small spacer length.permissible maximum speed is somewhat lower thanstandard series 80 coupling but adequate for mostapplications.
series 80 cc the design permits very small distancebetween shaft ends. The design is ideal for applicationswhere non-spacer gear couplings are to be replaced bymetaflex couplings.this design has twin disc packspermitting misalignment in all directions.either driving ordriven equipment is to be shifted for removal of discpacks.
series 80 ccs this is also a close coupled design. Thespacer is of split design.split spacer permitsremoval/fitment of disc packs without having to shiftconnected equipment. This design has also twin disc packspermitting misalignment in all directions.
