Rolling bearing and spindle apparatus for machine tool

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO RE48843
SERIAL NO

16381315

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A rolling bearing includes an inner ring having an outer surface, an outer ring having an inner surface, a plurality of rolling elements rotatably disposed between the inner ring and the outer ring, and a retainer for retaining the rolling elements. The retainer is made of a resin material and is positioned with respect to the inner surface of the outer ring or the outer surface of the inner ring. The retainer includes a pair of annular portions axially arranged in parallel and a columnar portion coupling the annular portions. Then, the rolling bearing satisfies the following expression: id='REI-00001' date='20211207' AI=LH3/dm≥0.025id='REI-00001' id='REI-00002' date='20211207' LH3/dm2≥0.025 mm2 id='REI-00002' in which H is a radial length of a section of the annular portion, L is an axial length of the same, and dm is PCD of the rolling element.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
NSK LTD6-3 OHSAKI 1-CHOME SHINAGAWA-KU TOKYO 1418560 ?1418560

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Anzai, Takaaki Kanagawa, JP 8 63
Koiwa, Yu Kanagawa, JP 4 62
Matsuyama, Naoki Kanagawa, JP 13 115
Misawa, Tamotsu Kanagawa, JP 4 62
Sugita, Sumio Kanagawa, JP 24 187
Terasaki, Masaru Kanagawa, JP 2 28

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Jun 7, 2025
7.5 Year Payment $3600.00 $1800.00 $900.00 Jun 7, 2029
11.5 Year Payment $7400.00 $3700.00 $1850.00 Jun 7, 2033
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00