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O Rings

O Rings

O-RING is a loop of elastomer with a round cross-section intended to be seated in a groove and squeezed together during assembling between two or more parts creating a seal at the interface to block the passage of liquids or gases. O–Rings selection is based on chemical compatibility, service temperature, sealing pressure, lubrication requirements and working atmosphere. O-rings can form a static or dynamic seal. A static seal is where the O-ring does not move and is used simply for containing pressure or maintaining a vacuum. Dynamic seals can be reciprocating (like a piston and cylinder), or rotating (shaft rotating in a housing). Axial squeeze and radial squeeze are two methods for applying an O-ring.

KESARIA RUBBER is one of the largest manufacturers and exporters of Rubber. O-rings in Gurugram, India. We offer our esteemed customers a wide range of elastomeric materials for both specials and standard applications which allow the O-Ring to seal basically all liquid and gaseous media. We specialize in the manufacturing of Rubber O-Rings ranging from 3 mm to 500 mm. We manufacture O-rings in various sizes and colors from various types of rubber like FKM or Viton, Silicon, EPDM, NBR, Neoprene, SBR & Natural.The hardness rating on a Shore A scale for O-rings can be 30 ~ 95 Durometer. Exact specifications should be clarified by our engineers, as chemical and physical properties of an O-ring can differ based on manufacturing technique. When custom o-rings are required, the width or Thickness, Insider Diameter, and Outside Diameter are important to consider.

Material Selection Guide

MATERIAL NR SBR NBR CR EPDM HNBR ACM CSM SILICONE FKM
(VITON)
HARDNESS RANGE ( SHORE A) 40-90 35-90 40-90 40-80 40-90 40-90 40-80 40-80 30-80 50-90
HIGH TEMP◦C 100 120 130 130 150 150 180 150 230 225
LOW TEMP◦C -50 -55 -45 -40 -50 -45 -25 -40 -60 -15
STEAM F F F P G G P E E E

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E= EXCELLENT;  G= GOOD;  F= Fair; P= Poor; A=Available, NA= Not Available

This guide is intended for general  reference Only. The materials listed are the most commonly used. There are numerous compound variations  designed  for  specific  applications  for  which  please  forward  details  to our  engineers  for  recommendation.

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