SEAL MEMBER FOR BEARINGS

Title:

SEAL MEMBER FOR BEARINGS

Document Type and Number:

Japanese Patent JP2023001654

Kind Code:

A

Abstract:

To provide a seal member for bearings that has excellent urea grease resistance and is high in wear resistance and adhesion between a rubber molding and a cored bar.SOLUTION: A seal member for bearings has a rubber molding and a cored bar. The rubber molding is a vulcanized and molded rubber composition containing a fluororubber (A) 100 pts.mass and a white filler (B) 15-100 pts.mass. The fluororubber (A) is a copolymer containing a vinylidene fluoride unit, a unit derived from a fluorinated monomer represented by a following formula (1) CH2=CFR [where R is a C1-12 linear or branched fluoroalkyl group], and a monomer unit containing at least one of an iodine atom and a bromine atom. The white filler (B) has a DBP oil absorption of 30-210 ml/100 g. The white filler (B) is at least one kind selected from silica, silicate and diatomaceous earth.SELECTED DRAWING: None

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Inventors:

KATAYAMA TATSUO
IKEDA KEIKO
HARA MAYU

Application Number:

JP2021102501A

Publication Date:

January 06, 2023

Filing Date:

June 21, 2021

Export Citation:

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Assignee:

UCHIYAMA MFG

International Classes:

C08L27/16; C08K3/013; C08K3/36; F16C33/74; F16C33/76; F16J15/10

Attorney, Agent or Firm:

Patent Attorney Corporation Setouchi International Patent Firm

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