The CR08-A profile is a specialized radial rotary shaft seal designed for drive systems, pumps, and engines where space or application requirements necessitate a spring-less design. This rotary motion seal performs exceptionally in atmosphere-to-grease sealing, handling low-pressure (0.05 Mpa / 0.5 Bar & 7.25 PSI) environments with ease. Its flexible sealing lip is engineered to compensate for shaft-to-bore misalignment and run-out, ensuring a consistent barrier against dust and dirt without damaging the housing bore.
| Parameter | Metric Units | Imperial Units |
|---|---|---|
| Model | CR08-A | CR08-A |
| Type | Radial Rotary (Spring-less) | Radial Rotary (Spring-less) |
| Max Pressure | 0.05 Mpa / 0.5 Bar | 7.25 PSI |
| Temperature (FKM) | -20°C to +200°C | -4°F to +392°F |
| Temperature (NBR) | -30°C to +100°C | -22°F to +212°F |
| Speed Range | Up to 5 m/s | Up to 16.4 ft/s |
| Material Options | FKM (Viton®), NBR, PU, HNBR | FKM (Viton®), NBR, PU, HNBR |
• Flexible Misalignment Compensation: The elastic lip design accommodates dynamic run-out and shaft eccentricity, maintaining a tight seal against atmosphere.
• Non-Corrosive Housing Fit: Rubber-to-metal press-fit design prevents bore damage and eliminates oxidation risks commonly found in metal-cased seals.
• Advanced Production Tech: Manufactured via High-Precision Lathe-Cut processes, offering No-Mold Required Seals for rapid, low-cost custom batches.
• Extra-Large Capabilities: Available as extra-large diameter hydraulic seals up to 3000mm and oversized sealing solutions reaching 3 meters in diameter.
• Versatile Application: Primarily used in engines and pumps as a robust secondary sealing element to keep dust and abrasive particles away from main seals.
The CR08-A is a high-performance spring-less rotary seal that offers a secure press-fit in open housings, eliminating the risk of corrosion in the housing bore. Designed as a primary grease seal or a secondary excluder, it effectively protects main sealing elements from environmental contamination. Its nominal dimension outside diameter ensures simple mounting and dismounting, making it an ideal choice for emergency seal replacements. The CR08-A is particularly suitable for applications where metal springs are prohibited, providing a reliable, flexible, and cost-effective sealing solution.
Carlock Sealing is a professional China-based manufacturer and factory supplier specializing in high-performance industrial seals. We focus on the precision production of rotary shaft seals, hydraulic elements, and custom-machined profiles using advanced CNC turning technology. By working directly with us, clients benefit from high-quality materials such as FKM, NBR, and Polyurethane without the overhead of intermediaries. Our facility is equipped for the rapid manufacturing of oversized seals up to 3000mm with no tooling fees. As a dedicated industrial producer, Carlock Sealing provides 24-hour emergency production and global shipping to ensure your machinery maintains peak operational efficiency.
Disclaimer: All manufacturer names, symbols, and descriptions are used for reference purposes only and do not imply that any part listed is the product of these manufacturers.
