Поставщик резиновых уплотнительных колец для автомобильной и промышленной промышленности

JINNAI SEAL manufactures custom automotive rubber O-rings for engines, fuel systems, transmissions, cooling systems, and automotive air conditioning equipment. Available in NBR, HNBR, FKM, EPDM, and other suitable rubber compounds, our automotive O-ring seals are designed to provide reliable leakage prevention, chemical resistance, and temperature stability. We support OEM automotive O-ring manufacturing based on customer drawings, samples, and specific application requirements, with flexible sizes, hardness options, and custom specifications.

Технические характеристики

1. Automotive Engine O-Rings

Designed for automotive engine components, these rubber O-rings help prevent oil and coolant leakage while maintaining reliable sealing under temperature fluctuations and mechanical stress.

2. Fuel Injector O-Rings

Automotive fuel system O-rings provide reliable sealing in fuel injectors, fuel pumps, fuel lines, and related connections. FKM and other suitable compounds can be selected according to fuel type and operating conditions.

3. Transmission O-Rings

Transmission O-ring seals are used in automotive transmission systems to prevent hydraulic fluid and lubricant leakage, helping maintain stable system pressure and reliable operation.

4. Automotive HVAC O-Rings

Automotive air conditioning O-rings are designed for refrigerant system connections, compressors, and related components. Suitable materials help provide reliable sealing against refrigerants, lubricants, and temperature changes.

5.Brake System O-Rings 

Designed for hydraulic brake components such as master cylinders, brake valves, and hydraulic connections, these O-ring seals use brake-fluid-compatible rubber materials, such as EPDM, to help prevent fluid leakage and maintain reliable hydraulic pressure and braking performance.

Available Rubber Materials

Key Product Features

1. Excellent Leakage Prevention – Helps prevent oil, fuel, coolant, and other fluid leakage.
2. Temperature Resistance – Maintains sealing performance under application-specific temperature conditions.
3. Chemical Compatibility – Available in compounds selected for different automotive fluids and chemicals.
4. Compression Set Resistance – Helps maintain sealing force during long-term compression.
5. Precision Dimensions – Manufactured to meet specified dimensions and tolerances for accurate installation.

How to measure an O-Rings?

Measuring an O-ring correctly is essential for selecting the right replacement and ensuring reliable sealing performance. An O-ring is typically measured by its Inside Diameter (ID) and Cross-Section (CS).

1. Measure Inside Diameter (ID)

Measure the internal distance across the center of the O-ring, from one inner edge to the opposite inner edge. Use a caliper for accurate measurement.

2. Measure Cross-Section (CS)

Measure the thickness of the rubber cord by measuring across its circular cross-section. A digital caliper or O-ring measuring gauge can be used.

3. Check O-Ring Condition

If measuring a used O-ring, check for stretching, deformation, wear, or compression damage. For more accurate replacement sizing, use an undamaged sample whenever possible.

4. Confirm the O-Ring Dimensions

O-ring sizes are generally specified as:

• ID (Inside Diameter): Internal diameter of the O-ring.
• CS (Cross-Section): Thickness of the rubber cord.
• OD (Outside Diameter): Outside diameter, calculated as ID + 2 × CS.

O-Ring Size Formula

Example:

• ID: 20 mm
• CS: 2.5 mm
• OD: 25 mm

Helpful Tip: Always measure O-rings in an unstretched and uncompressed condition. For replacement applications, also check the gland dimensions and applicable industry standards to ensure proper fit and sealing performance.

Параметры настройки

• Material: NBR, HNBR, FKM, EPDM, Silicone
• Hardness: Custom Shore A hardness
• Size: Standard and non-standard dimensions
• Color: Black and customized colors
• Design: Custom cross-sections and dimensions
• Production: Prototype samples, small batches, and mass production

Product Applications

Engine Systems – Sealing engine covers, oil passages, coolant connections, and other engine components.

Fuel Systems – Used in fuel injectors, fuel pumps, and fuel line connections.

Transmission Systems – Preventing fluid leakage in transmission housings and hydraulic connections.

Cooling Systems – Sealing coolant pipes, thermostats, and cooling system connections.

Automotive HVAC Systems – Providing sealing for air conditioning compressors, refrigerant pipes, and connectors.

Brake System O-Rings – Provide reliable sealing in hydraulic brake components to prevent brake fluid leakage and maintain system pressure.

Why Choose JINNAI?

JINNAI SEAL Products Type