SUTRAN SPINRITE PRESSED STEEL CASTORS
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Flat top plate, double ball race castors have the balls running in special āVā cross section tracks which reduces friction , distributing the radial shock loads and weight bearing thrust loads over the entire swivel bearing, eliminating over stressing of the swivel bearing at one point, and therefore premature kingpin failure. These parts are manufactured to precision mirror images and are put together by a heavy steel kingpin rivet,and secured by orbital formation. Special care has been taken to increase the strength of the castor by incorporating contours & rib enforcements in the sheet metal parts where ever possible. The precise formation and assembly of each part improves the swivel action to the castor and reduces the play in the moving parts increasing the service life of the castor wheel assembly.