Product Description
The HY 289631 is a sealed roller bearing precision-manufactured for Hyster electric pallet jacks and mast assemblies. Constructed from heat-treated bearing steel with permanent factory lubrication and sealed design, this bearing resists moisture and contaminants in demanding warehouse environments. With an outer ring diameter of 111.5 mm and inner ring diameter of 35 mm, it ensures smooth rotation under the high-load cycles typical of electric lift truck operations. No field maintenance or relubrication required.
Specifications
Material & Construction
| Bearing Material | High grade bearing steel |
| Construction | Sealed, full complement roller set between inner and outer rings |
Dimensions
| Outer Ring Diameter | 111.5 mm |
| Inner Ring Diameter | 35 mm |
Part Numbers
| Part Number | HY 289631 |
Applications
| Compatible Equipment | Hyster electric pallet jacks and mast assemblies |
Frequently Asked Questions
Q: What are the bearing dimensions of the HY 289631?
A: The HY 289631 roller bearing has an outer ring diameter of 111.5 mm and an inner ring diameter of 35 mm. These dimensions are critical for fitment in Hyster mast assemblies and lift mechanisms. Always verify dimensions against your equipment before ordering.
Q: Which Hyster electric lift truck models use the HY 289631 bearing?
A: The HY 289631 is compatible with various Hyster electric lift trucks. Confirm your specific truck model, serial number, and the bearing location (mast assembly, load wheel carrier, or idler position) with our parts team to verify correct fitment.
Q: What type of bearing is the HY 289631?
A: The HY 289631 is a roller bearing with a full complement roller set between sealed inner and outer rings. This sealed construction protects against moisture and contaminants while providing permanent factory lubrication. Roller bearings distribute loads across multiple rolling elements for smooth rotation.
Q: What is the material composition of the HY 289631 bearing?
A: The HY 289631 is precision-manufactured from high-grade bearing steel that is heat-treated for hardness and durability. Heat treatment ensures the bearing surfaces resist wear under high loads and repetitive cycling common in electric lift truck mast and load-wheel assemblies.
Q: Does the HY 289631 require maintenance or relubrication?
A: No. The HY 289631 features sealed construction and permanent factory lubrication. It is a sealed bearing cartridge and does not require field relubrication or regular maintenance. Sealed bearings protect against dirt and moisture ingress while eliminating maintenance labor.
Q: What is the typical lifespan of the HY 289631 bearing?
A: Under normal warehouse operating conditions, the HY 289631 bearing typically has a service life of 5 to 10 years or longer. Lifespan depends on load cycles, operating environment, and maintenance of the truck. Bearings in extremely wet or corrosive environments may require earlier replacement.