10pcs Black NBR70 O-Ring Washer Sealing Gasket 27 x 2mm

Description:

• Used to prevent leaks while working with plumbing,hydraulics,air and gas connections.
• Rubber construction resists oil,gas,water,durable.
• Suitable for car engine system,transmission,shock absorber etc.
• Easy to store,low weight.

Specification:

• Inner Diameter: 27mm / 1.06"
• Wire Diameter: 2mm / 0.08"
• Tolerance Standard(Inner Diameter): +/-0.25mm
• Tolerance Standard(Wire Diameter): +/-0.07mm
• Hardness(Shore A): 70
• Tensile Strength(Mpa): 18.5
• Elongation Rate: 350%
• Hot Air Aging (Permanent Compression,Deformation): 13%(Test Condition:100 Celsius,70 Hours)
• Hot Air Aging(Hardness Change): +2 Degrees(Test Condition:100 Celsius,70 Hours)
• Oil Resistance Change for ASTM#1(Hardness): +8(Test Condition:100 Celsius,70 Hours)
• Oil Resistance Change for ASTM#1(Tensile Strength): 8%(Test Condition:100 Celsius,70 Hours)
• Oil Resistance Change for ASTM#1(Elongation Rate): -21%(Test Condition:100 Celsius,70 Hours)
• Oil Resistance Change for ASTM#3(Hardness): -1(Test Condition:100 Celsius,70 Hours)
• Oil Resistance Change for ASTM#3(Tensile Strength): 5%(Test Condition:100 Celsius,70 Hours)
• Oil Resistance Change for ASTM#3(Elongation Rate): -18%(Test Condition:100 Celsius,70 Hours)
• Brittle Temperature: -40 Celsius

Storage Condition:

• Materials should be stored at a temperature of 0 to 28 degree centigrade,relative humidity of not more than 80%, dust-free and properly ventilated environment,at least 1 meter away from the heat source.
• Materials are not allowed to come into contact with acids,alkali,oils and various solvents during storage to avoid exposure to sunlight,arc light and other .

Installation:

• Use tools without sharp edges.
• Ensure that the O-ring is not twisted,and do not stretch the O-ring too hard.
• Try to use an auxiliary tool to install O-ring,and ensure correct positioning.
• For bonding with a sealing strip,the O-ring must not be stretched at the joint.
• When the O-ring is stretched,the mounting mandrel must be used when passing screws, keyways, etc.The mandrel can be made of soft,smooth metal or plastic without glitch or sharp edges.
• When installing the compression screws,tighten the screws symmetrically and do not tighten them in the direction.

Some Tips Before Installation(Please Check):

• Whether the angle is machined according to the drawing.Whether the sharp edge is chamfered or rounded.
• Whether the inner diameter removes the glitch surface or not.
• Whether the seals and parts have been greased or lubricated.

Package Include:

• 10 x Car O-Ring Seal Gaskets