DX wiper seals
DX seals are snap-in wiper seals and feature a patented profile with a single external wiping lip and a vented inner edge. These profiles have a rubber O-ring that maintains strong static sealing contact in the housing. The O-ring also acts as an energiser, providing consistent long-term preload on the dynamic lip. In the event of radial misalignment, the entire TPU wiper ring follows these radial movements (“floating” design), as the relatively soft and flexible rubber O-ring energiser deforms to compensate.
When the wiper lip encounters resistance from contaminants adhering to the retracting rod (e.g. tree sap or freezing rain), the profile responds by twisting to increase preload on the dynamic wiper lip.
DX profiles therefore combine the functionality of press-in wiper seals with the convenience of snap-in wiper seals. These profiles are available in inch sizes.