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FlexiLip (LEN), Single Lip Solid PTFE Rotary Shaft Seal for Abrasive Media
Brand: Parker HannifinParker’s FlexiLip™ seals utilize PTFE lip materials in rotary shaft applications where elastomeric lip materials fail to meet operating requirements such as temperature range, chemical resistance or friction and are an economical alternative to mechanical seals.
A higher load single lip dynamically seals on the shaft and an O-ring centered on the OD keeps the seal fixed in the bore as the shaft rotates.
For temperatures 250°F, or shaft size >4”, specify profile with integrated stainless steel support band (LEN-S).
Features- Low friction
- High surface speed
- Wide temperature range, subject to limitation of elastomer O- ring
- Ultra broad chemical compatibility
- Dry running ability in dynamic sealing applications
- Resistance to degradation, heat aging and physical property alteration during temperature cycling (subject to limitation of elastomer O-ring)
Specifications
Brand
Function
- Fluid Retention
Maximum (STBM) Misalignment
- 0.005”
Maximum Pressure (psi)
- 100 to 300
Maximum Shaft Dynamic Runout (TIR)
- 0.004”
Maximum Surface Speed (ft/min)
- > 3200 (> 16.3 m/sec)
Maximum Working Temperature (°F)
- Varies Depending on Material
Minimum Width (inch)
- 0.312” (7.9 mm), 0.375” (9.5 mm)
Minimum Working Temperature (°F)
- Varies Depending on Material
Outside Diameter
- O-Ring Centered in the O.D.
Radial Cross Section
- 0.250” (6.4 mm) Min., 0.312” (7.9 mm) Min.
Seal Type
- O-Ring O.D.
Shaft Seal Material
- PTFE
Size Range (inch)
- 0.750” to 12.000” (19 to 305 mm)
Thermal Application (°F)
- Varies Depending on Material
- The versatility of Parker’s FlexiLip designs make it suitable for a wide range of applications including motors, gearboxes, pumps, bearings, compressors, cryogenics, rolls, extruders, valves, blowers, spindles, robotics, mixers.