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TAS –SCHAFER GERMANY, Introduces Internal locking assemblies for the Indian Market :
TAS- Schafer – Germany GmbH is one of the leading manufactures of Premium Quality Internal locking assemblies. The product quality is certified by EN ISO-9001: 2000 – Germany.
It is a device which locks the Shaft with the Hub for further manufacturing activity. These are meant for highly stressed Shaft –Hub Connections. This was earlier done by the age old Key –Way system of locking.
Internal Locking Assembly, consisting of internally slotted bush and externally slotted ring are clamped together by locking screws, thus mating the shaft with the bore of the hub. It has High decree of concentricity and removal by means of jacking screws. These are available in various Standard ranges such as TAS-3003, TAS-3006,TAS-3012,TAS-3015,TAS-3020. The difference in the higher ranges being larger Flange of the Internal bush preventing axial movements of shaft and hub. The other higher range has high torque transmission values, then additional collar of the inner face of the external bush results in shorter fitting and removal time. The further higher range has two tapered rings, locked together by screws forcing one slotted internal and one slotted external ring against the respective shaft and the hub surfaces, matching tolerances need not be too close. Removal is simple as the cone angles prevent binding. Made to order sizes can be available
The locking assemblies are delivered by the manufacturers oiled and are ready to be fitted, additional centering are not absolutely necessary as the concentricity is 0.02 to 0.04mm. The discs are available from 20 dia to 500 dia., However other sizes can be made on request. In the above referred ranges the details of fitting and removal of the shrink discs are explained exhaustively in the Company Manual.
Uses are for: Shaft mounted gear units, Crane wheels, Conveyor pulleys, Mixer shafts, Pump impellers, Bucket wheels, Wind mill propellers, Drum connections for belt conveyors, Sprockets, Ship & Aircraft Propellers, Turbine rotors, Cold forming presses. Hydraulic Shrink discs are so far, mostly used in Windmill Industry , where the shaft diameters are huge.