Profile A is the most common and available for shaft diameters from 3 to 1000 mm. The Trelleborg V-ring® is an all-rubber seal for rotary shafts, rotating with the shaft and sealing axially against the stationary counterface. Its light lip pressure generates low friction. It can also be used as a secondary seal to protect primary seals that do not perform well in hostile environments.--Profile A is the most common and available for shaft diameters from 3 to 1000 mm.