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Systira Conveyors and Equipments pulleys are of heavy duty construction, suitable for continuous operation.
Pulley assembly dimensions and tolerances are based on IS: 8531.
Pulley shells are either made from standard heavy tubes or fabricated from steel plates. Depending upon the face width, two or three diaphragms are provided. Pulley shafts are of carbon steel and fully machined to precise tolerances. Assembly of pulley and shaft is usually accomplished through a bore and keyway. However, taper lock bushings are also offered. Heavy duty split-type plummer blocks, equipped with self-aligning double row ball/roller/taper roller bearings, with adequate dust sealing arrangements are used. Take-up shaft runs between standard take-up blocks with anti-friction self-aligning ball bearings, sliding between parallel guides, provided in the structure.
Straight or crowned faces are available in all combinations of diameters and faces widths. They may be furnished with rubber lagging usually grooved to resist slippage. Static balancing of pulleys ensures increased bearing life and reduced power consumption.