Product Description
HN GG1-801180 is a deep groove radial ball bearing designed for use in manual pallet jack steer and load wheel assemblies. Manufactured from high-hardness chrome bearing steel, it conforms to the 6204 series dimensional standards, featuring a 20 mm bore, 47 mm outside diameter, and 14 mm width with double rubber seals for contamination resistance. Compatible with a wide range of manual pallet jack models requiring this specification.
Specifications
Material & Construction
| Material Specification | Bearing steel (SAE 52100 hard chrome) |
| Hardness | Rockwell C60 minimum |
Mechanical Specifications
| Seal Type | 2RS double rubber seals |
Part Numbers & Compatibility
| Manufacturer Part Number | HN GG1-801180 |
Frequently Asked Questions
Q: What are the specifications for the HN GG1-801180 bearing?
A: The HN GG1-801180 is a deep groove radial ball bearing conforming to 6204 series standards with 20 mm bore diameter, 47 mm outside diameter, and 14 mm width. It is manufactured from SAE 52100 hard chrome bearing steel with Rockwell C60 minimum hardness and includes double rubber (2RS) seals for contamination resistance.
Q: Which pallet jack equipment models is HN GG1-801180 compatible with?
A: The HN GG1-801180 fits a wide range of manual pallet jacks from Crown, Toyota, Raymond, Yale, Hyster, Jungheinrich, Linde, Clark, and Mitsubishi that use 6204-series bearings in steer and load wheel assemblies. Verify your equipment bore and outside diameter dimensions before ordering to ensure fitment.
Q: Why is the 2RS double rubber seal design important for warehouse use?
A: Double rubber seals protect against moisture, salt, dirt, and chemical residue common in warehouses and cold storage environments. The seals trap grease and prevent contamination ingress, reducing internal corrosion and extending bearing life by thousands of operating hours compared to unsealed bearings.
Q: What material properties define the HN GG1-801180 performance?
A: SAE 52100 hard chrome steel provides high hardness and wear resistance under cyclic loading. Chrome alloying enhances corrosion resistance in humid and wet environments. Rockwell C60 hardness specification ensures the bearing races resist spalling and maintain dimensional stability under the radial and shear loads from loaded pallet movement.
Q: How long does the HN GG1-801180 typically last in pallet jack service?
A: Expected service life ranges from 2000 to 5000 operating hours under normal load conditions in standard warehouse environments. Cold storage and wet areas may reduce lifespan. Warning signs of wear include increased wheel drag, grinding noise, or visible play. Replace the bearing if these symptoms develop to avoid wheel failure.
