Oil Seals and O-Rings
Product Overview
Oil seals are commonly used where a rotating shaft is lubricated by oil or grease. These include driveshaft, crankshafts, and hydraulic cylinders. The seal works like a cap, covering the clearance between the shaft and housing, stopping fluids from leaking. It also prevents the entry of containments in the chamber. Depending on the type and severity of leakage, a suitable oil seal must be used. Contact us for the guidelines to help you get the proper seal for the job. Our oil seals are currently available in three types.
Type A - Fully-enclosed elastomer
It is the most widely used oil seal enclosed in rubber material. It exhibits good resistance to thermal cycling, temperatures, and different chemical resistance.
Type B - Partly enclosed elastomer
It is an economical oil seal. The metal is exposed on one side and fits closely between the oil seal and housing (or bore). Hence, it is not widely used for sealing thin liquids or gases.
Type C - Partly enclosed and metal reinforced
It has the same design as that of type A. It has corrosion protected metal case and stainless-steel garter spring—this seal suits fuel and chemical applications.
Type F
It has the same design as that of type A. It has corrosion protected metal case and stainless-steel garter spring—this seal suits fuel and chemical applications.
1. O-Rings
We are one of the leading manufacturers of O-rings in Pune and adjoining areas. Our O-rings are made from various polymers such as NBR EPDM, PTFE, Silicone, etc. The standard hardness range is from 10mm to 1200mm, available in multiple colors. Our O-rings are approved by various testing agencies, according to the applications.
2. NBR O-rings
NBR (Nitrile-Butadiene Rubber) is one of the most popular, cost-effective, and commonly available O-ring materials. These O-rings are widely used in pump seals, drive belts, and other general engineering applications. They are a popular choice in the hydraulic and pneumatic industry. NBR O-rings are preferred when they need to be exposed to fats, greases, and animal or vegetable oils. For special applications requiring diesel or higher temperatures, contact us for different O-rings.
Temperature Range
3. EPDM
EPDM rubber (Ethylene-Propylene-Diene-Monomer) rubber is a type of synthetic rubber. EPDM has comparatively better heat, light, and ozone resistance than unsaturated rubbers. General-purpose (sulfur-cured) EPDM O-rings are suitable for use up to +120°C, whereas peroxide cured O-rings can be used up to +150°C. EPDM is particularly useful for sealing in brake systems that use fluids.
Temperature Range
4. PTFE
Poly Tetra Fluoro Ethylene (PTFE) is a synthetic fluoropolymer of tetrafluoroethylene with numerous applications. PTFE O-rings are highly flexible and are mostly unaffected by acids, alkalis, and solvents. These O-rings are tough, abrasion-resistant, and capable of withstanding a wide temperature range (between -200°C to +250°C). Its good weather, ozone, and electrical resistance allow its wide application in aerospace, food, pharmaceuticals, and telecommunications. PTFE O-rings are not easily compressed and have little memory to return to their original form. This can be a disadvantage if under permanent strain and may not create the best lasting seal.
Temperature Range
5. Silicone
VMQ (Vinyl-Methyl-Silicone) is a group of elastomeric materials made from silicon, oxygen, hydrogen, and carbon. Silicone O-rings are characterized by excellent resistance to extreme temperatures and thermal cycling. As silicone rubber does not have odour or taste, it is widely used in the food and pharmaceutical industries. However, Silicone rubber has poor mechanical properties when compared with other elastomers. Hence, they are not suitable for many dynamic applications.