American Society for Precision Engineering
Abstract Review
ASPE Home Page Join ASPE ASPE Publications ASPE Meetings ASPE Calendar Employment About ASPE



Abstract ID   2016
Title   Development of a Hydrostatic Journal Bearing with Slit-step Compensation
Category   Equipment, Machines & Instruments: Design & Testing
Primary author  
Organization  
Content   We describe a hydrostatic journal bearing that derives compensation from both a central radial slit at the entrance and step clearances near each end. Bearings featuring either slit or step compensation were well studied over forty years ago by Donaldson. These bearings have smooth bores uninterrupted with multiple recesses around the circumference. The present slit-step bearing achieves the best of both types with somewhat higher hydrostatic stiffness than the slit bearing and fluid shear drag as low as the step bearing. This technology is being studied for use on the Precision Optical Grinder and Lathe (POGAL) being developed at Lawrence Livermore National Laboratory.
 

Home | Member Home | Membership | Publications | Meetings | Calendar | Employment | About ASPE | RSS Feed


American Society for Precision Engineering
P.O. Box 10826, Raleigh, NC 27605-0826 USA, (919) 839-8444, (919) 839-8039 Fax
© 1999-2010 American Society for Precision Engineering. All rights reserved.