O-RINGS are solid-rubber, doughnut shaped seals. |
O-RINGS are solid-rubber, doughnut shaped seals. When pressed between two mating surfaces, O-rings block the passage of liquids or gases. O-rings can form a static or dynamic seals. 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. An axial squeeze is when the ring is compressed parallel to a line drawn through the center
or axis of the ring. In a radial squeeze the ring is compressed between the internal diameter (ID) and overall Diameter (OD).
O-rings are typically available in standard sizes as per industry standards. These include "AS568" standard sizes (001-475), British Standard Metric Sizes, JIS Standard Sizes, JASO Standard
Sizes, AS871, and custom. When custom o-rings are required, the width or Thickness, Insider Diameter, and Outside Diameter are important to consider. Common materials of construction for o-rings
include , PTFE, , & 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.
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