Oil Seal 20x34x7 – Custom Rubber Oil Seal Manufacturer for OEM & Industrial Applications
Product Introduction
The Oil Seal 20x34x7 is a precision-engineered rubber sealing component designed to prevent oil, grease, and fluid leakage in rotating or static mechanical systems. With an inner diameter of 20 mm, outer diameter of 34 mm, and thickness of 7 mm, this oil seal is widely used in automotive parts, electric motors, pumps, gearboxes, and industrial machinery.
As a custom oil seal 20x34x7 manufacturer in China, Xiamen Jinshun Sealing Technology Co., Ltd. supplies high-performance, application-specific oil seals made from certified elastomers such as NBR, FKM (Viton), Silicone, ACM, AEM, PU, and AFLAS, supporting OEM, ODM, wholesale, and distribution partners worldwide.

What Is an Oil Seal 20x34x7?
An oil seal (also called a rotary shaft seal) works by sealing the gap between a rotating shaft and a stationary housing. The 20x34x7 oil seal ensures that lubricants stay inside the system while blocking dust, moisture, and contaminants from entering.
In real-world industrial use, a properly designed oil seal can reduce lubricant loss by over 90% and significantly extend bearing and shaft service life-making it a small component with a big impact on equipment reliability.
Key Applications of Oil Seal 20x34x7
This size is commonly specified in:
- Automotive engines and transmission systems
- Small motors and electric appliances
- Pumps and fluid handling equipment
- Agricultural and construction machinery
- Industrial gearboxes and reducers
Because working conditions vary, custom material selection is often more important than size alone.
Oil Seal 20x34x7 Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | Oil Seal 20x34x7 |
| Inner Diameter (ID) | 20 mm |
| Outer Diameter (OD) | 34 mm |
| Thickness | 7 mm |
| Hardness | Shore A 40–90 |
| Pressure Resistance | Up to 0.5 MPa (material dependent) |
| Temperature Range | -40°C to +250°C (material dependent) |
| Rotation Type | Static / Low-speed dynamic |
| Color | Customizable |
| Design | OEM / ODM available |
Available Materials for Oil Seal 20x34x7
Choosing the right rubber compound directly affects seal lifespan and performance.
| Material | Key Advantages | Typical Applications |
|---|---|---|
| NBR (Nitrile) | Excellent oil & fuel resistance, cost-effective | General machinery, automotive |
| FKM (Viton®) | High temperature & chemical resistance | High-end automotive, chemical industry |
| Silicone (VMQ) | Flexible, food-grade compliant | Food equipment, medical devices |
| ACM (Polyacrylate) | Heat & oil resistant | Automotive transmissions |
| AEM | Better heat aging than NBR | Engine compartments |
| PU (AU) | High wear resistance | Hydraulic systems |
| AFLAS | Extreme chemical resistance | Harsh industrial environments |
All raw materials comply with ROHS, REACH, and PAHS, and selected grades meet FDA, NSF, WRAS, LFGB, UL, and other global standards.
Why Choose Jinshun as Your Oil Seal 20x34x7 Manufacturer?
With over 20 years of manufacturing experience, Jinshun Sealing is more than a supplier-we are a long-term technical partner.
Our advantages include:
- ISO 9001:2015 & ISO 14001:2015 certified factory
- In-house R&D and mold development
- Low MOQ starting from 50 pcs
- Fast sampling: 1 day for existing molds, 7–10 days for custom designs
- Stable mass production: 12–18 days after sample approval
- OEM branding and logo customization supported
We serve international brands in automotive, sanitary ware, home appliances, water purification, and industrial equipment.
Packaging, Lead Time & Trade Terms
| Item | Details |
|---|---|
| Packaging | PE bag inside, carton box outside |
| Sample Time | 1 day (existing) / 7–10 days (custom) |
| Production Lead Time | 12–18 days |
| MOQ | 50 pcs |
| Port | Xiamen |
| Payment Terms | T/T |
| Shipping Terms | FOB, CIF, CFR |

Frequently Asked Questions (FAQs)
1. Can you customize the oil seal 20x34x7 for special working conditions?
Yes. We customize material, hardness, lip design, color, and structure based on temperature, pressure, and media requirements. Drawings or samples are welcome.
2. How do you ensure product quality?
We follow a 100% quality responsibility policy, with incoming material inspection, in-process control, and final inspection before shipment.
3. Do you support OEM and ODM projects?
Absolutely. We provide full OEM & ODM oil seal solutions, including mold design, material selection, and private labeling.
4. Do you have export experience?
Yes. We are an experienced exporter with long-term clients across Europe, North America, Southeast Asia, and the Middle East.
Looking for a reliable Oil Seal 20x34x7 manufacturer or a custom rubber oil seal supplier in China?
📩 Contact Xiamen Jinshun Sealing Technology today to get:
- Free technical consultation
- Material recommendation for your application
- Fast quotation for OEM & bulk orders
👉 Visit: https://www.jinshunsealing.com
👉 Email / Inquiry: ywb6@jinshunxm.com
Let's build a long-term sealing solution for your brand.














