Technical Handbook O-rings 6. Compound Selection
Technical Handbook O-rings TABLE 3A-2 STANDARD ERIKS COMPOUNDS Elastomer Compound Hardness Temperature Application Number Shore A±5 °C / °F Nitrile, NBR, Buna N 36624 70 -35 to +110 °C Hydraulic Oils, Vegetable Oils, Animal Fats, Acetylene, -31 to +230 °F Alcohols, Water, Air, Fuels and many other products
اقرأ أكثر
Engineering Basics: Guide to O-Rings | ERIKS shop NL
The O-ring is used for sealing straight thread tube fittings in a boss. A boss is a cylindrical projection on a casting or forging. The end of that projection is machined to provide a flat, smooth surface for sealing. Straight threads used with an O-ring provide a better seal than tapered threads used alone.
اقرأ أكثر
O-ring material selection guide | O-ring material comparison
Nitrile O-rings, which have a temperature range between -54 and 149 degrees Celsius, are suitable for use with water, petroleum oils and some hydraulic fluids. Nitrile O-rings are not advisable for use with automotive brake fluid, ketones, phosphate ester hydraulic fluids, and nitro and halogenated hydrocarbons.
اقرأ أكثر
Hydraulic O-Rings | Products & Suppliers | Engineering360
O-Rings are used as sealing elements or as energizing elements for hydraulic slipper seals and wipers and thus cover a large number of fields of application. There are no fields of. Cross-section: 0.0394 to 0.3937 inch. Hardness Rating (Shore A Scale): 70 durometer. Inside Diameter (ID): 0.3937 to 31.89 inch.
اقرأ أكثر
Materials | SKF | SKF
The O-rings listed in this section are made of nitrile rubber (NBR) with 70 shA hardness as standard. This is the most common O-ring material and hardness used in hydraulic cylinder applications. On request, SKF can supply alternative hardnesses such as 80 shA or 90 shA.
اقرأ أكثر
Which O-ring material is right for my application ...
O-rings and seals are used in a wide range of industries to help you tightly seal the connections in pipes, tubes, and other elements of complex hydraulic and pneumatic systems. Due to many applications, there is also a wide variety of O-ring material choices available. Nitrile (Buna), Neoprene, Ethylene Propylene (EPDM Rubber), Silicone ...
اقرأ أكثر
The Importance of Shore A Hardness
The hardness of rubber O-rings are measure by the Shore A durometer; the higher the durometer, the harder the compound. In general, 70-durometer hardness should be used whenever possible, as it offers the best combination of properties for most o-ring applications.
اقرأ أكثر
: hydraulic o ring kit
BUSY-CORNER 382 Pieces FKM O Ring Kit, 75A Fluorocarbon, 30 Different AS568 Standard Sizes, Chemical Resistant O-Rings for Various Chemicals, Hydraulic and Cylinders (Yellow Box,Brown Orings) 5.0 out of 5 stars. 9. $56.99. $56.
اقرأ أكثر
Not All O Rings are Equal Hydraulic O-Ring Eaton
O-rings are the unsung hero of any application. These donut-shaped engineered objects seal connections in equipment by forcing a rubber seal into a channel and applying mechanical or hydraulic pressure to prevent clearance of a less viscous material.
اقرأ أكثر
What is the durometer of an O-Ring? | Rocket Seals, Inc.
O-Rings are available in almost all durometers, with 70 or 90 durometer, the most common in most compounds. Softer sealing materials, with lower hardness readings, will more easily flow into the microfine grooves and imperfections of the mating parts, but softer compounds, like 50 durometer compounds, wear and extrude very quickly.
اقرأ أكثر
O-Ring Types and O-Ring Material Makeup - A Guide
Applications: Polyurethane o-rings are often used for hydraulic fittings, cylinders and valves, pneumatic tools, and firearms. Silicone Temperature range: Between -120 degrees Fahrenheit and 450 degrees Fahrenheit, although silicone o-rings have been shown to withstand -175 degrees Fahrenheit during short periods of exposure.
اقرأ أكثر
Hardness - OringsUSA
The hardness of rubber compounds is measured by the Shore A durometer; the higher the durometer, the harder the compound. 70-durometer hardness should be used whenever possible as it offers the best combination of properties for most O-Rings …
اقرأ أكثر
Hydraulic Oil O-Rings | McMaster-Carr
Choose from our selection of hydraulic oil O-rings, including over 8,800 products in a wide range of styles and sizes. In stock and ready to ship.
اقرأ أكثر
O-Ring Durometer Chart
O-Ring Durometer Chart. The hardness of rubber o-ring compounds are measured by the Shore A durometer; the higher the durometer, the harder the compound. 70-durometer hardness should be used whenever possible as it offers the best combination of properties for most o-ring applications. Durometer Shore A scale is a type of measurement for rubber ...
اقرأ أكثر
Hydraulic High Pressure O Rings, Colored 70 / 90 Shore ...
High quality Hydraulic High Pressure O Rings, Colored 70 / 90 Shore Nbr Piston O Ring from China, China's leading high temperature o rings product, with strict quality control piston o ring factories, producing high quality piston o ring products.
اقرأ أكثر
Parker O-Ring Handbook
forming ability of the hydraulic medium. O-rings can be used between rotating members with similar results but in all cases the surface rubbing speed must be kept low. C. A single O-ring will seal with pressure applied alternately ... hardness and strength, and piston-cylinder clearance.
اقرأ أكثر
O-Ring Size Chart : The O-Ring Store LLC, We make getting ...
The O-Ring Store LLC : O-Ring Size Chart - O-Ring Cord Stock OSK™ Assorted O-Ring Kits OSK™ O-Ring Repair Kits OSK™ Hydraulic Seal Kits OSK™ Air Nailer O-Ring Kits O-Ring Lube O-Ring Tools AS568 O-Rings (Inch) Metric O-Rings (mm) OSK Pool, Spa & Pump O-rings Hydraulic Seals - Inch O-Ring Glue & Thread Sealant Vulcanized O-Rings O-Ring Splice Kits & Tools Hydraulic Seals - …
اقرأ أكثر
Parker O-ring Handbook - University of Arizona
on O-ring drive belts and their application will be found in O-Ring Applications, Section III. 1.2 What is an O-ring Seal? An O-ring seal is used to prevent the loss of a fluid or gas. The seal assembly consists of an elastomer O-ring and a gland. An O-ring is a circular cross-section ring molded from rubber (Figure 1-1). The gland — usually ...
اقرأ أكثر
How to chose O-Ring material for your fluid sealing ...
Complete O-ring material compatibility for various applications can be found here. Seal material: Alfas®. Hardness (Shore A): 60 -90. Standard Colour: Black. Working temperature: -14° to +446°F (Standard Compound) Key uses: Used in seals for aerospace, oil related seals. Commonly used in …
اقرأ أكثر
Viton Gaskets, O-Rings and Seals - Seal & Design, Inc
Fluorocarbon rubber (FKM Viton ®) has excellent resistance to high temperatures, ozone, oxygen, mineral oil, synthetic hydraulic fluids, fuels, aromatics, and many organic solvents and chemicals.It has a higher resistance to swell in high octane and oxygenated fuel blends. Low-temperature resistance is normally not favourable and for static applications is limited, although in certain ...
اقرأ أكثر
O-Rings? O-yeah! How to Select, Design, and Install O-Ring ...
O-rings conforming to these sizes are available in many different materials. The primary considerations for selecting a material is the working fluid and temperature. Design tables, like this one in the Parker O-ring Handbook, are the easiest way to select …
اقرأ أكثر
Nitrile 90 Durometer O-Ring Kit, Black, General Purpose ...
Multiple sealing solutions for the same cost as a single OEM replacement part. Well even build custom kits using any of our 200-plus compounds. • Heat resistance. • Up to 100°C (212°F) with shorter life @ 121°C (250°F) • Cold flexibility. • Depending on individual compound, between -34°C and …
اقرأ أكثر
High Pressure O-Rings | Marco Rubber Custom O-Rings Experts
High Pressure O-ring Perfomance. Most o-rings are designed to operate at pressures up to 1,500 psi with an extrusion clearance gap of less than .04". At higher pressures and larger clearance gaps, the o-ring material must have enough strength to resist extruding into the clearance gap.
اقرأ أكثر
What is Durometer? | Global O-Ring and Seal
The hardness of rubber compounds is measured by the Shore A durometer; the higher the durometer, the harder the compound. 70-durometer hardness should be used whenever possible as it offers the best combination of properties for most O-Rings applications.
اقرأ أكثر
Hydraulic Seals - OringsUSA
Fluid power seals Name Shape Type Description O-Rings Universal The O-ring is considered a universal sealing device. Used as static, dynamic, radial or face seals. A wide range of elastomers is available. Parbak™ Back-Up Rings Dynamic For use as an anti-extrusion device in dynamic O-ring applications where there is high pressure or excessive gland clearance. […]
اقرأ أكثر
ERIKS - Technical Manual - O-Ring Gland Design Information
• Select a different O-ring hardness. • Select a different O-ring material with improved coefficient of friction. • Increase the groove depth. • Consider the use of an alternate design of seal. • Viton® has much lower friction than NBR or EPDM or Silicone. • Check to ensure squeeze is …
اقرأ أكثر
EPDM Rubber & Other Common O-Ring Materials
Some of the common types of O-ring materials include PTFE, Nitrile (Buna), Neoprene, EPDM Rubber and Fluorocarbon (Viton) . Silicone and Kalrez® O-ring materials are also widely used, especially in high temperature applications. Contact us for more information about our O-ring materials or request a quote on your custom application today.
اقرأ أكثر
Shore A Versus Shore D: The Important Differences You Need ...
Hydraulic o-rings; Measuring Shore D. The Shore D scale is used for harder materials such as plastics and ebonite. Similarly to Shore A, Shore D is measured based on ASTM D-2240 standards. However, Shore D is also measured according to ISO 868 standards, which can be divided into two types: Type A is used for softer materials
اقرأ أكثر
O-ring - Wikipedia
Manufacturing. O-rings can be produced by extrusion, injection molding, pressure molding or transfer molding.. History. The first patent for the O-ring, is dated May 12, 1896 as a Swedish patent. J. O. Lundberg, the inventor of the O-ring, received the patent. The US patent for the O-ring was filed in 1937 by a then 72-year-old Danish-born machinist, Niels Christensen.
اقرأ أكثر
Mil Spec O-Rings AMS SAE Aerospace Military Specification
Hydraulic O-Ring Sizes correspond with AS 568 straight thread tube fitting boss gaskets:- Petroleum base and nonflammable waterbase hydraulic fluids 85-95 durometer. SAE J 515 Type 2 : Hydraulic O-Ring Sizes correspond with AS 568 straight thread tube fitting boss gaskets:- Nonflammable phosphate ester base hydraulic fluid 75-85 durometer.
اقرأ أكثر
NOK Hydraulic Cylinder Rod Seal IUH IDI ISI Seal Ring
Hardness: 30-90 Shore,90 Shore A. Get Best Price. Excavator Hydraulic Cylinder Guide Ring Black POM Ring. Feature: ... Bucket Hydraulic O Ring Kit, High Sealing Performance Hydraulic Ram Seal Kit. Durable Hydraulic Cylinder Rebuild Kits, Hallite H605 Rod Oil Seal Kit.
اقرأ أكثر
O-Ring Material Chart Rubber Selection Guide Quick Reference
O-Ring Material Chart - Quick Selection Guide Compare O-Ring Material Use Compatibility Differences. O-ring material family chemical compatibility, temperature resistance, and other properties all factor in to o-ring material selection for an application.
اقرأ أكثر
What is Shore A Hardness? | Parker Hannifin O-Ring Division
The O-Ring Basics chapter of Parker's eHandbook provides an overview of what an O-ring is, how it works, and finally, the benefits over other seals. One very important consideration is the hardness of a rubber material.
اقرأ أكثر