NBR Rubber O-Rings with 40~90 Shore A Hardness AS568 Standard and Customizable Sizes for Oil and Gas Industry
| Item | Value |
|---|---|
| Size | AS568 |
| Place of Origin | China |
| Brand Name | SHQN |
| Model Number | AS568 |
| Product Name | Rubber O Rings |
| Material Type | NBR |
| Hardness | Selected Shore A hardness and tolerance by NBR compound and gland |
| MOQ | 10000pcs |
| Delivery Time | 7-15 Days |
| Supply Ability | 3000000 Piece/Pieces per Month |
| Size Options | AS568 dash number or custom ID and cross-section by drawing |
| Port | Shanghai Port |
| Application | Oil and gas industry |
Review the NBR compound against the exact oil formulation, additives, temperature and exposure time before selecting a seal for an oil-wetted joint.
Select one nominal Shore A hardness and tolerance for the gland. Pressure, clearance, squeeze and motion determine the required seal properties; manufacturing equipment alone does not define hardness.
Available in standard black or custom colors to meet your specific requirements.
Precautions for storage of O-ring seals:
- Keep seals away from direct sunlight, moisture, ozone sources and heat; use the specified storage conditions for the selected compound. Store rings without stretching or compression.
- The O-ring must be stored 1m away from heating equipment and not placed indoors with acid or alkali.
- The O-ring is not allowed to be compressed during storage to avoid permanent deformation.
- Bags storing O-rings must have their manufacturing and factory dates recorded.
Our company has advanced production equipment, excellent manufacturing processes, professional technical personnel, and a complete quality assurance system.
We provide OEM/ODM services with multiple 150T/200T/300T vacuum vulcanizing machines that can meet various production requirements. Our workshop features advanced vacuum vulcanizing machines capable of producing 2500 molds per day.
Shanghai Qinuo Industry specializes in producing various rubber products with professional engineering support and technical reference guides. We have a professional sales and after-sales service team to ensure the best quality and service.
With more than 60 sets of compression machines, we can meet every customer's requirement, whether small or large projects. OEM/ODM services are available.
A: Standard Parts:
- Oil and gas industry: Hammer Union Seals, Pipe Wipers, Swivel Joints, U-Cups, O-Rings, Seals and Gaskets
- Other industries: rubber door stoppers, rubber chair leg caps, lab rubber parts, PTFE backups, Peek parts
B: Custom Parts:
Send the drawing or sample with the fluid, temperature, gland dimensions and inspection requirements for custom-part review.
A: Samples are available (3-10 samples or 1 pack for free). Please note shipping costs are not included. We can also use your courier account for sample shipment.
A: For bulk packing, please place the order directly. For custom packing or labeling, please contact our sales team.
A: Yes, we provide custom services. Please contact us for details.
A: Yes, we can arrange different shipping methods (express, air, or sea) according to the final packing.
A: Yes, just provide the exact address and we will arrange shipment.
A: We accept Paypal, Western Union, TT, credit card, and agreed order payment method.
A: Stock goods: generally within 15 days according to quantity. Production goods: 12-15 days depending on packing and quantity.
Oil-Wetted NBR Joint Review: Swelling, Squeeze and Maintenance
Specify the oil designation and any cleaners that contact the seal. Compare compound compatibility data for swelling and changes in hardness; the NBR family name alone does not establish suitability for every synthetic oil, fuel or additive package.
Provide the AS568 dash number or nominal inner diameter and cross-section, gland depth and width, and mating-part clearance. Identify whether the joint is static or moving, and include pressure peaks and operating temperature when reviewing extrusion control and backup-ring needs.
For maintenance orders, identify the equipment joint and approved compound along with size. A ring removed from service may have swollen or taken compression set, so use the drawing or equipment specification to confirm replacement dimensions rather than measuring the worn ring alone.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.