Browse Prior Art Database

Air Sealing Device for Rotating Shafts or Hubs

IP.com Disclosure Number: IPCOM000085895D
Original Publication Date: 1976-Jun-01
Included in the Prior Art Database: 2005-Mar-03
Document File: 2 page(s) / 42K

Publishing Venue

IBM

Related People

Williams, JH: AUTHOR

Abstract

The device includes a seal D disposed between a stationary hub A and a pulley C for sealing the space G between hub A and shaft B on which pulley C is fixed.

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Air Sealing Device for Rotating Shafts or Hubs

The device includes a seal D disposed between a stationary hub A and a pulley C for sealing the space G between hub A and shaft B on which pulley C is fixed.

Seal D is typically a fluorocarbon ring with concentric inner and outer diameters. The outer diameter of seal D is in constant running contact with the smooth surface c on the inner diameter of pulley C. Seal ring D is retained and is fixed with respect to stationary hub A by a metal ring F which is pressed on a concentric outside diameter of hub A. The inner diameter of pulley C may contain a grease reservoir E which is preferably filled with an appropriate lubricant and sealant. A conventional bearing H is provided for rotatably disposing shaft B and pulley C with respect to stationary hub A.

The air sealing device including the seal ring D prevents the migration of particles by air into the clean space G including the inner bore of hub A, thus eliminating the use of sealed bearings and other internal devices such as labyrinth seals for the purpose.

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