Single universal joint S

precisionchromesteel

Integral yokes joints S series are precision products studied to ensure exceptionally long life at competitive prices. This extraordinary result has been achieved thanks to construction high tecnology devices and sophisticated machine tools. They are made of several components and of different materials: Special nickel chrome alloy steel cemented and hardened tor those parts which are subject to high stress and wear (R > 200 Kgf/mm2 - HRC 60). Mild steel for inner hubs and outer sleeves to allow pinning, keyways, etc. The main characteristic of these joints is the absolute lack of carried journals or pins, this is fundamental in some emergency situations such as heavy shock loads, motion reversals and high torques. Being the 4 yokes and their solid pins machined from one piece, the result is an extremely compact central block. The pins articulate in the centrai block together with the cemented bearing surface of the yokes. The combined action pinlsurface raises the level of the joint output and its capability to transmit power (or torque) even in the most severe conditions. Yokes are exposed tor a minimum part (out of sleeves) to avoid bendings. In the central block cavity there are channels bringing the lubricant from the outside grease valve to the pins. A constant lubrication is ensured by the grease reserve in the central block chamber. Such a hermetic core structure prevents both from lubricant losses and pollution by outside agents.