Title:
特に工作機械の主軸を支持するための高速可動軸受
Document Type and Number:
Japanese Patent JP2008536059
Kind Code:
A
Abstract:
According to the invention, the high-speed moving bearing is embodied as an automatically-compensating movable ball bearing with several adjacent races of balls with operation-dependent radial thermal expansion of the bearing rings, the bearing rings of which are only in supporting contact with one ball race in the cold state for the high-speed movable bearing, by means of a convex embodiment of the running surfaces for the roller bodies on the inner bearing ring. With increasing thermal expansion and expansion due to centrifugal force of both bearing rings, the further ball races come sequentially into such a contact position with both bearing rings as a result of an elastic radially-flexible embodiment of both bearing rings, that the bearing rings at the operating temperature for the high-speed moving bearing are in supporting contact with all ball races.
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Inventors:
Alberto, Viri
Application Number:
JP2008502235A
Publication Date:
September 04, 2008
Filing Date:
February 24, 2006
Export Citation:
Assignee:
Siefrell Commande Date Gezershaft
International Classes:
F16C25/08; B23B19/02; F16C33/58
Attorney, Agent or Firm:
Osamu Nakahira