SWKS Seal, with over 10 years experience, is one of the leading shore a 70 nbr o-ring with black color manufacturers and suppliers in China. And we also offer the customized service catering to your special requirement. Please be free to buy the rubber products with competitive price from us.
 | Shore A 70 NBR O-ring with Black Color |
1.The O-ring is an annular seal having an O-shaped cross section, the size of which is determined by the inner diameter ID and the wire diameter CS.
2.O-ring size calculation: outer diameter = inner diameter + 2 x wire diameter (OD = ID + 2x CS).
3.The purpose of using O-ring seals is to prevent leakage and loss of liquids or gases.
4.O-rings are the most commonly used type of seal because of their simplicity, convenience, and small installation space. As long as the groove design and material selection are correct, and the operating conditions are within the temperature range of the rubber material, the seal can have a long-term sealing effect in the static or dynamic seal.
Sealing force changes with system pressure
| Product Name | Buna/NBR/Nitrile Rubber O-ring |
| Working Temperature | -25℃~+120℃ |
| Color | Black, grey,purple or as customer need etc. |
| Size | Standard size or Custom Size |
| Hardness | 60/70/90 Shore A |
| Details Images of Shore A 70 NBR O-ring with Black Color |
| Our Advantage |
Many specification for you choose
AS 568, BS 4518, GB/T 3452.1, JIS B2401 P/G/S/V, SMS 1586, METRIC and JASO F404 standard sizes and various non-standard sizes.
Minimum production size 0.5mm (inside diameter) × 0.5mm (wire diameter)Maximum production size 1400mm (inside diameter) × 50mm (wire diameter)
②Every product will be 100% checked before shipping,we won’t let anything defective go.
| Product Packing |
Opp bag inside
Carton outside
All packaging are signed our logo. And any customized request is ok.
Quickly delivery, with several delivery ways, such as DHL/FEDEX/UPS/TNT express, Air and Ocean shipping way. We have several express accounts and the cost is very cheap.
| Our factory |
We Tianjin SWKS offer all kinds of rubber molded parts in both small and large quantities. Like o-rings, rubber grommets, rubber bellows,rubber bumper, rubber plugs, gasket, etc. for usage in various industries. We not only supply the parts with standard specifications, but also produce the molded parts as per our customers' drawings and samples.
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