Product Description
OEM Crown CR 064133-001 Cup U Piston is a polyurethane hydraulic piston U-seal used for electric lift truck hydraulic cylinder applications. Designed for consistent performance under high load cycles and pressure, with compatibility for mineral hydraulic oil and abrasion-resistant properties per ASTM standards.
Specifications
Hydraulic
| Pressure Rating | Suitable for hydraulic systems up to 2,500 PSI working pressure |
Material & Construction
| Seal Material | High-performance polyurethane per ASTM D624 |
| Fluid Compatibility | Mineral-based hydraulic oil |
Part Numbers
| Part Number | CR 064133-001 |
| Manufacturer | Crown |
Performance Specifications
| Duty Cycle | Continuous-duty; rated for approximately 120+ cycles per hour typical of lift truck hydraulic operation |
| Service Life | 5-10 years under normal warehouse conditions with proper hydraulic fluid maintenance |
Frequently Asked Questions
Q: What is the CR 064133-001 and where is it used?
A: The CR 064133-001 is a Crown polyurethane cup U-seal (piston seal) for hydraulic cylinders in electric lift trucks and pallet jacks. It provides hydraulic pressure containment and rod sealing during load-cycle operations.
Q: What material is this seal made from and what are its pressure ratings?
A: The CR 064133-001 is manufactured from high-performance polyurethane per ASTM D624 standards and is rated for hydraulic systems up to 2,500 PSI working pressure, maintaining consistent performance across lift truck duty cycles.
Q: What hydraulic fluids is this seal compatible with?
A: The CR 064133-001 is designed for mineral-based hydraulic oils commonly used in Crown lift trucks and pallet jacks. Consult your equipment manual before using synthetic or biodegradable hydraulic fluids.
Q: What is the duty cycle rating for this U-cup seal?
A: The CR 064133-001 is rated for continuous-duty applications typical of electric lift truck hydraulic cycles, approximately 120+ operating cycles per hour, with abrasion resistance per ASTM standards for consistent high-load performance.
Q: How do I recognize when this seal needs replacement?
A: Replace the CR 064133-001 if you observe internal hydraulic leakage past the rod (fluid on the rod exterior), loss of load-holding ability, slow or jerky lift response, or visible scoring on the cylinder rod.
Q: What is the typical service life for this hydraulic seal?
A: The CR 064133-001 typically lasts 5-10 years under normal warehouse duty cycles with proper hydraulic oil maintenance. High-temperature environments, contaminated hydraulic fluid, or extended idle periods may reduce service life.