Showing posts from July, 2018

O-Rings Design Guidelines, Specifications - FITCO

O-Rings are one-piece molded objects made from elastometric seal with a circular cross-section. They are used to prevent fluid movement between mechanical parts by maintaining contact with the inner and outer walls enclosing the ring. The resiliency of the rubber provides a zero-pressure seal. When pressure is applied, the fluid forces the O-Rings across the groove and causes more deformation. This leads to the ring flow up to the fluid passage and seal it against leakage. O-Rings are an example of self-energize seals, meaning they relay pressure inside the container (or pipe) to give them the pressure necessary to form the seal. O-Rings are inserted into cavities called glands, and they are used in either axial or radial seal designs. An O-Ring is described by its inner diameter, its outer diameter, its material hardness 
(or durometer) and its material composition. 

Dimensions of O-Rings are given in ANSI/SAE AS568A. A seven-digit number is assigned to each ring to designate the ring …

Types of Oil Seal Materials / Material Selection Guide for Oil Seals - FITCO

Which is the Best Material for Your Oil Seal? 

Application:  Radial shaft seals, also known as lip seals, are used to seal rotary elements, such as a shaft or rotating bore. Rotary shaft seals play a key role in extending the operating life of bearing systems and reducing the overall costs of maintaining these systems. The primary function of a rotary shaft seal is to retain bearing system lubricants therefore allowing the bearings to operate in optimal levels of lubrication. The secondary function of a rotary shaft seal is to exclude contaminants from the system, contaminants that can both damage bearings and break down the effectiveness of lubricants. 
USP:  The seal construction will consist of a sprung main sealing lip which has a point contact with the shaft. The point contact is formed by two angles, with the air side angle usually less than the oil side angle. “Depending on the seal type these two angles are varied to create a “pressure distribution” at the seal contact point whic…

O-Rings Seals for Connector and Metal Tube Adapters Assemblies - FITCO

Tube Assemblies - Hydraulics Hose and Hose Fittings For over a decade, we are manufacturing O-Rings for metal tube assemblies because of our precision engineering and quality control practices, companies have used our O-Rings for tube assemblies in hydraulic fluid transfer, fuel and oil, lubrication, fleet, automotive, and military applications.
O-Rings for Fuel Injection Tubes
O-Rings are used in Fuel Injection Tubes are used in large numbers in all kinds of diesel engines for automobiles, ships, construction equipment, and agricultural machinery
O-Rings for CRDi Tubes & Hydraulic Tubes Common Rail technology operates at very high-pressure to achieve better air-fuel mixing and as a result, higher engine efficiency. We offer a qualitative range of High Pressure Hydraulic Tubes.
O-Rings for EGR & Bellows EGR tube assembly carries unburnt gas vapors from the exhaust manifold chambers to the intake manifold and is reintroduced into the engine firing sequence
We expertise in O-Rings and w…