HUB UNIT AND ITS MANUFACTURING METHOD

Title:

HUB UNIT AND ITS MANUFACTURING METHOD

Document Type and Number:

Japanese Patent JP2007269121

Kind Code:

A

Abstract:

To provide a hub unit and its manufacturing method in which the outer ring is fitted with a cover in order to seal the inside of the hub unit, and a good sealing performance is assured between the cover and the cover fitting part of the outer ring.

The spacing of adjoining tool marks on the inside circumferential surface 45 of the outer ring 2 ranges between 310-600 μm, and the load length rate Rmr (50%) of the roughness curve at a cut level of 50% ranges between 37-60%, while the ten-point mean roughness Rz JIS ranges 1.5-8 μm, and the cover is fitted using the inside circumferential surface 45 as a fitting part.

Inventors:

MURAKAMI TAKANOBU

Application Number:

JP2006095978A

Publication Date:

October 18, 2007

Filing Date:

March 30, 2006

Export Citation:

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Assignee:

JTEKT CORP

International Classes:

B60B35/18; B23B5/04; B60B27/00; B60B35/02; F16C19/18; F16C33/64; F16C33/76

Attorney, Agent or Firm:

Masanori Sugawara

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