Product Description
The YL 550091330 is a sealed deep groove ball bearing engineered as a load wheel component for Yale manual pallet jacks. With a 20mm bore and 47mm outside diameter, this precision bearing delivers smooth, reliable rolling performance under load in warehouse and dock environments. The sealed hardened steel construction protects against dust and moisture, extending bearing life in demanding industrial applications.
Specifications
Material & Construction
| Bearing Material | Hardened bearing steel |
| Construction | Single-row deep groove |
| Sealed Construction | Sealed hardened steel |
Dimensions
| Bore Diameter | 20 mm |
| Outside Diameter | 47 mm |
| Width | 14 mm |
Application & Compatibility
| Application | Load wheel bearing for manual pallet jacks |
| Compatible Models | Yale YA55 series |
Part Information
| Part Number | YL 550091330 |
Frequently Asked Questions
Q: What is the YL 550091330 bearing and what is it used for?
A: The YL 550091330 is a precision ball bearing for load wheel assemblies on Yale manual pallet jacks, including YA55 series. It enables smooth rolling under load and is sealed to protect against dust and moisture in industrial environments.
Q: What are the exact dimensions of the YL 550091330?
A: Bore diameter: 20 mm. Outside diameter: 47 mm. Width: 14 mm. This is a single-row deep groove bearing construction. Verify these dimensions match your pallet jack before ordering to ensure correct fitment.
Q: Is the YL 550091330 sealed or open bearing design?
A: The YL 550091330 is sealed construction with hardened bearing steel throughout. The seal design prevents water, dust, and debris from entering the bearing cavity, extending service life in wet floors, cold storage, and outdoor warehouse conditions.
Q: What causes the YL 550091330 bearing to fail?
A: Bearing failure occurs from lack of lubrication, seal degradation allowing moisture ingress, overloading beyond pallet jack capacity, or impact damage. Rust formation inside sealed bearings indicates seal failure and bearing replacement is required.
Q: How long does the YL 550091330 bearing last?
A: Sealed bearing life is typically 24-48 months in normal warehouse use. Cold storage and wet environments may reduce life by 30-50 percent. Bearing life depends on load consistency, operator technique, and floor surface conditions. Replace when grinding noise or resistance appears.
Q: Can the YL 550091330 be used in wet floor or cold storage pallet jacks?
A: Yes. The sealed hardened steel construction and sealed deep groove design make the YL 550091330 suitable for cold storage and wet floor operations. The seal protects against moisture and condensation that would corrode unsealed bearings.