Oilless Bushes

DIFFERENCE BETWEEN GUN METAL AND GRAPHITE FILLED BRONZE :-

• •  Oilless bushings does not require any extra lubrication whereas Gun metal bushings will require Oil grooves & oil holes for providing extra lubrication.
• • Base material of Oilless is much stronger then Gun metal Bushes. Load carrying capacity of Oilless bushings are much much better than normal Gun metal bushings.
• • Life expectancy of Oilless bushings are almost 5 times than normal Gun metal bushings.
• • Graphite Filled Bronze bushes are always supplied in finished condition with close dimensional tolerances, as after plugging Graphite, the machining is not possible.
• • Cost factor of these bushes depends on the consumption and final dimensions.
• • Graphite filled bronze bushes are basically used for Sliding and high load application.

Disadvantages :-

• • Not possible to machine / Ream Oilless bushings whereas machining is possible in gun metal bushings.
• • Min Diameter 8 mm required for Oilless bushings.