Grampus Impex Pvt Ltd.

I. P Extension, Delhi

we offer metal below coupling. •excellent torsional rigid •zero backalsh transmission •misalignment compensation •no vibration dampening •low inertia •maintenance free •available in different material and mounting method designs bellow couplings are constructed of two aluminiumsteel hubs connected to a flexible metal bellows. bellow coupling torsional rigidity are greater than the disc couplings. the flexibility of the bellows accommodates all misalignment types and bearing loads are low and constant throughout all points of rotation. with aluminum hubs, the bellows coupling has very low inertia ratings, which save the system from unnecessary force and provide even greater response. running speed capability is on par with the disc couplings at about 10, 000 rpm, but can be balanced even for high speed applications.

We are offering servo disc couplings. •excellent torsional rigid •zero backalsh transmission •double disc coupling can accomodate parallel and angular misalignment •single disc couplings can only accommodate angular misalignment •no vibration dampening •low inertia •maintenance free disc couplings are available in 2 models double disc and single disc type. Disc couplings are composed of either two hus combines with one disc pack or three hubs combined with two disc packs. Both variations of the disc coupling are torsionally rigid. the discs are flexible and allow an ample amount of misalignment, especially in the double disc design. bearing loads and inertia are low as well. furthermore, the disc coupling can handle upwards of 10, 000 rpm, with low inertia due to the light materials used.

We offer oldham couplings. •max speed: 4, 500 rpm •good misalignment capabilities; excellent parallel misalignment •good torsional rigidity with acetal center disc •little vibration dampening •low to moderate inertia the oldham coupling has the ability to accommodate a high level of parallel misalignment, since the center disc is made to slide over the tenons of the hubs. this lack of resistance (other couplings have a spring-like resistance to misalignment) results in low, and stable bearing loads. the second advantage is the ability to interchange the center disc. generally, two types of material are used, acetal to provide torsional stiffness and nylon to provide dampening, much like the jaw coupling. furthermore, the oldham coupling has the unique ability to act as a mechanical fuse. the tenons of the hubs will not interlock if the center disc fails and torque will cease to be transmitted. the oldham coupling’s aluminum hubs help to keep the inertia low. while the oldham coupling works very well for parallel misalignment, it can only handle small amounts of angular misalignment and axial motion. too much angular misalignment will cause the coupling to lose its constant velocity characteristic and the coupling will literally fall apart with too much axial movement. also, while nylon material may be chosen to dampen vibrations, due to the sliding of the hubs and extremely soft characteristics of the nylon used, the coupling is not tight enough to be zero backlash. speed capability for all oldham couplings is also relatively limited, around 4500 rpm. additionally, the sliding of the tenons will eventually wear down the insert and replacement will be required

We are offering curved jaw couplings. •zero backalsh transmission •suitable for press fit assembly •small misalignment compensation •low torsional rigidity . •good vibration dampening •moderate inertia •spiders available in 3 different level of hardness. curved jawcouplings are composed of three parts - two aluminiumsteel hubs and one elastomer insert.

Keyless Shaft Locking Assembly •Totally backlash-free connection between Hub and Shaft •Quick and simple installation •Shaft diameter: 6 - 800 mm •Torque transfer capacity: Up to 1500 kNm •A range of models for different applications Locking Assemblies provide reliable, high strength keyless connections by converting locking screw clamp loads into radial contract pressures applied simultaneously to both the shaft and that bore of the mounted component. The resulting zero-backlash mechanical interference fit will accommodate high torque, thrust, bending andor radial loads, and unlike other mounting technologies will never wear or pound out, even for high cycle fluctuating or reversing loads. Locking Assemblies provide reliable, high strength keyless connections for shaft driven devices. When the Locking Units bolts are tightened plates engage with both the shaft and the inside circumference of the driven component. The locking assembly distributes the applied pressure evenly. No keyways or grubscrews are required with this device

We are offering shrink disc couplings •excellent torsional rigid and torque capacity •zero backalsh transmission •parallel and angular misalignment compensation in double disc design. •single disc couplings can only accommodate angular misalignment. •no vibrating dampening •low inertia •maintenance free disc couplings are available in 2 models double disc and single disc type. Disc couplings are composed of either two hus combines with one disc pack or three hubs combined with two disc packs. Both variations of the disc coupling are torsionally rigid. the discs are flexible and allow an ample amount of misalignment, especially in the double disc design. bearing loads and inertia are low as well. furthermore, the disc coupling can handle upwards of 10, 000 rpm, with low inertia due to the light materials used.

We are offering rigid couplings •excellent torsional rigid and torque capacity •zero backalsh transmission •misalignment compensation •no vibrating dampening •low inertia •maintenance free •available in different material and mounting method designs rigid couplings are available in clamping hub and split hub design, with optional keyway, in aluminium, steel and stainless steel.

Shaft Collars Shaft Collars are used to position or locate a component on a shaft. In addition, Set Screw Collars and Clamp Collars can be used to limit the travel of a shaft in reciprocating applications, or used as a spacer between components. ONYX Shaft Collars fit metric shaft sizes ranging from 3mm to 80mm. Shaft Collars are made from Aluminium, Carbon steel, Stainless Steel (304 or 316). Steel Collars are available in multiple finishes – black oxide or zinc. Shaft Collars are available in two design set screw collar and clamping collar with keyway optional. Clamp on collars allow greater holding force than set screw collars plus they will not mar the shaft. They clamp on evenly around the shaft providing excellent holding power. We highly recommend clamping collars over set screw collars

NYLON SLEEVE GEAR COUPLING •Moulded Nylon Sleeve •Low maintenance (no lubrication, seals, retainers required) •No internal friction loss •High ambient temperature •Minimum Backalsh transmission •High torque, low Inertia •Maintenance free •Resistance to dirt, moisture Nylon curved tooth gear couplings provide free axial movement, low friction and minimum stress during misalignment. Nylon couplings are compact and require no lubrication, eliminating the needs for seals. The resilient nature of Nylon material makes the contact of the hubs and sleeves almost frictionless.

OILLESS BRONZE BUSH Oilless Bearing is a kind of solid lubricant embedded bearing with metal basis and embedded graphite and MoS2 as lubricant. Specific technology is adopted to firmly integrate lubricant and meanwhile leave homogeneously distributed space within it so that it can absorb lubricating oil or grease over 20 percents of its total volume. When working without oil or under oil inadequacy, friction heat will drive oil and solid lubricant from inside to surface to reduce friction efficiency and improve wear-resisting performance. Material: Bronze, casting iron and steel. Graphite is evenly embedded into the main material. Specifications: Self lubricating bushing, no need for lubrication, high load capacity, available for working under high loads with low speed. Application Fields: Bridges, iron and steel industry, vanes, construction machinery, mining machines, building machines, marine industry. •Oilless Guide Bush •Oilless Flange Bush •Oilless Wear PlatesSlides •Oilless Washers