Product Description
Yale YL 500120902 is an OEM ball bearing specifically designed for use in Yale electric lift truck mast and drive assemblies. The part is cross-referenced with YT500120902 and is manufactured from high durability bearing steel. It is typically applied in high load, high cycle forklift environments and is intended to be used with lithium-based or EP bearing grease.
Specifications
Material
| Bearing Material | Through-hardened bearing steel (case-hardened) |
Part Numbers
| OEM Part Number | YL 500120902 |
| Manufacturer Part Number | YL 500120902 |
| Cross-Reference Part Numbers | YT500120902, YT 500120902 |
Frequently Asked Questions
Q: What type of bearing is the YL 500120902 and where does it go?
A: The YL 500120902 is an OEM ball bearing specifically designed for Yale electric lift truck mast and drive assemblies. These locations experience high load and high cycle repetition, so Yale specifies this bearing for reliability and extended service intervals in demanding warehouse operations.
Q: What material is this bearing made from and why does it matter?
A: The YL 500120902 is manufactured from case-hardened through-hardened bearing steel. This material composition creates a hard, wear-resistant surface that resists spalling and pitting under high loads and cyclic stress. Case hardening ensures the bearing maintains dimensional stability and performance throughout its lifespan in lift truck mast and drive mechanisms.
Q: What is the cross-reference part number for this bearing?
A: The YL 500120902 cross-references to YT500120902 and YT 500120902. All three numbers identify the same OEM component, so you may encounter any of these designations in parts documentation or supplier catalogs.
Q: What lubricant is recommended for this bearing?
A: The YL 500120902 performs best with lithium-based or EP (extreme pressure) bearing grease. These lubricants are formulated to handle the high loads and high cycle speeds found in electric lift truck drive and mast assemblies. Using standard grease or oil can result in inadequate film strength and bearing failure.
Q: What is the typical service environment for this bearing?
A: The YL 500120902 operates in high load, high cycle forklift and lift truck environments. This includes warehouse stacking operations, repetitive load lifting, and continuous mast raise/lower cycles. The bearing must tolerate vibration, shock loading, and sustained radial or axial forces without degradation.