Products

製品紹介

O-Rings

An O-ring is a part of seal in the shape of a torus.
Since it is seated in a simply structured groove, it's used for all applications.
Ars. provide synthetic gumwood with a superior characteristic depending on various use.

Major characteristic of rubber materials

Materials used for O-Ring are Nitrile Rubber, HNBR, Ethylene Propylene Rubber, Acrylic Rubber, Silicone Rubber, Fluororubber and so on.

Rubber class Use / Feature ※Specification
JIS B 2401-2012		 ※Application temperature
(℃)		 Sealing object
General useage unusable
Nitrile Rubber
(NBR)
  • General mineral oil

NBR-70-1

-35～120℃
  • Mineral oil
  • Ketone
  • Organic acid
  • Fuel oil

NBR-70-2

-25～100℃
  • Fuel oil
  • Hyperbaric

NBR-90

-35～120℃
  • General mineral oil
HNBR
  • General mineral oil

HNBR-70

-40～160℃
  • Fuel oil
  • Ketone
  • Organic acid
  • Fuel oil

Special (Company standard)

-25～150℃
  • fuel oil
EPDM
  • LCC (water) use
  • Liquid Medicine
  • Brake fluid use

EPDM-70

-50～150℃
  • LLC (water)
  • General mineral oil
  • fuel oil
Acrylic rubber
(ACM)
  • Heat Resisting use
  • General fuel oil use

ACM-70

-35～175℃
  • General fuel oil
  • Alcohols
  • Ether ketones organic acids
Silicon rubber (VMQ)
  • Heat or Freezing resistance use
  • General mineral oil

VMQ-70

-60～230℃
  • General mineral oil
  • Ether
Fluororubber (FKM)
  • Heat resistance use
  • Fuel oil
  • General mineral oil
  • Medicine use

FKM-70

-25～250℃
  • General mineral oil
  • Fuel oil
  • Ketone

FKM-90

-20～250℃
  • General mineral use
  • Fuel oil
  • Ketone
  • Freezing and Heat resistance use
  • General mineral oil
  • Fuel oil

special
(Company standard)

-40～220℃
  • General mineral oil
  • Fuel oil
  • Ketone
  • Since in the absence of Japanese Industrial Standards, we decide a standard in-house specification of the item as "Special(Company standard)" in the table.
  • The range of the application temperature is available temperature and is not guarantee temperature of the seal life.