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Outside Lip Metal Case Rotary Seals for Stationary Shaft with Rotating Bore (OSB OSC OSA)
Brand: Parker HannifinSpring-loaded metal case seals for stationary shaft/rotating bore applications are available from Parker. Elastomer lip OD seals against the rotating bore. Varying metal case ID configurations available to suit the application.
Easy to install outside lip rotary shaft seals for applications with a rotating bore and stationary shaft are available from Parker. The spring-loaded outside lip rotary shaft seal provides positive retention of grease in rotating bore applications.
Materials of construction include spring-loaded elastomer sealing lip for fluid retention against the rotating bore and varying metal case designs to press fit on the stationary shaft.
Note: Bore finish is critical since it serves as the dynamic sealing surface.
Specifications
Brand
Function
- Fluid Retention
Maximum (STBM) Misalignment
- 0.010”
Maximum Pressure (psi)
- 0 to 7
Maximum Shaft Dynamic Runout (TIR)
- 0.010”
Maximum Surface Speed (ft/min)
- 0 to 1000 (0 to 5.1 m/sec)
Maximum Working Temperature (°F)
- 400° F (204° C)
Minimum Working Temperature (°F)
- -40° (-40° C)
Polymer Family
- NBR, FKM, FPM
Seal Type
- Metal or Rubber-Covered Metal Seal Casing
Shaft Diameter (inch)
- 0.250 to 10.000 (6.4 to 254 mm)
Shaft Seal Material
- Rubber
Standard Designs
- OSB Profile: Metal case with ParKote™ sealant or ground ID. Most common and economical
- OSC Profile: Rubber covered metal case ID for improved ID sealing in shafts with minor imperfections and soft alloys
- OSA Profile: Double metal case where inner case provides structural rigidity for large cross-sections. ParKote™ coating is standard
- For Lubrication Retention in Electric Motors, Gear Boxes, Pumps and Fans Where the Bore Rotates and the Shaft is Stationary