SHELL-TYPE NEEDLE BEARING AND CROSS-TYPE UNIVERSAL JOINT

摘要

Construction is achieved of a cross-type universal joint and a shell-type needle bearing that is used therein for which cost can be lowered and durability can be maintained by suitably maintaining the seal performance even when used in severe operating conditions. The portions on the outer surface of the shell-type outer ring 9a for which there is a possible of coming in sliding contact with the tip end edges of at least two seal lips 17, 18 of a plurality of seal lips of a seal ring 14 are selectively covered with a corrosion resistant coating. Preferably, the entire outer surface of the shell-type outer ring is covered by a chemically treated film having anti-corrosion properties.