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Constructed from one or multiple Turcon® Polytetrafluoroethylene-based sealing elements, which are mechanically retained in a precision machined metal body, Turcon® Varilip® PDR (Performance, Durability, Reliability) rotary shaft seals provide positive dynamic sealing at high rotary speeds.
Characterized by low friction and stick-slip-free running, the seal reduces temperature generation, permits higher peripheral speeds and lowers power consumption.
Tests show that Turcon® Varilip® PDR requires only around 50 percent of the torque of a radial oil seal when running in Fomblin® oil, commonly used in semiconductor vacuum pumps. This results in a long-service life, with maximized mean time between planned maintenance and greater productivity.
Benefits of Turcon® Varilip® PDR seals include:
Low-friction to facilitate reduced power loss and friction-induced heat
Unique self-lubricating hydrodynamic feature to further reduce friction
Advanced geometries engineered to give excellent performance in almost every high-speed rotary situation
Multiple lip configurations to address most sealing needs
Material compatible with virtually all media
High speed capability up to 100 meters per second / 19,680 feet per minute
Wide operating temperature range from -60 °C to +200 °C / -76 °F to 392 °F
Options available for dry-running applications and for soft shafts
Unlimited shelf life with no special storage requirements