Product Description
Precision bearing assembly for manual pallet jack load wheels and caster systems. Features 20mm inner diameter, 47mm outer diameter, and 14mm width with sealed ball bearing construction for material handling equipment applications.
Specifications
Material
| Construction Type | Precision sealed ball bearing element |
Part Numbers
| OEM Part Number | 3881020 |
| Application Category | Manual material handling equipment wheel bearing |
Frequently Asked Questions
Q: What are the exact dimensions of bearing assembly 3881020?
A: The 3881020 precision bearing assembly has a 20mm inner diameter, 47mm outer diameter, and 14mm width. These dimensions are critical for load wheel and caster axle fitment on manual pallet jacks and material handling equipment.
Q: What manual pallet jack and caster models fit the 3881020 bearing?
A: The 3881020 bearing is compatible with load wheels and caster systems on Crown, Toyota, Raymond, Yale, and Hyster manual pallet jacks. Verify your equipment model and axle bore diameter against the 20mm inner diameter before ordering.
Q: Why is the 3881020 sealed ball bearing construction important?
A: The sealed ball bearing design keeps lubricant inside and contaminants out. For manual pallet jacks operating on wet floors or in cold storage, sealed construction extends bearing life and prevents rust and corrosion.
Q: How long does the 3881020 bearing assembly last in normal operation?
A: Under typical indoor warehouse use, the 3881020 bearing lasts 3 to 5 years. In cold storage or wet environments, lifespan may reduce to 2 to 3 years. Frequent heavy loads and harsh floors accelerate wear.
Q: What are the signs that 3881020 bearing needs replacement?
A: Replace the bearing when you hear grinding or squealing from the wheel, notice rough or resistant wheel movement, or see wheel wobble during operation. These indicate seal failure or internal ball bearing damage.
Q: Is there a cross-reference part number for bearing 3881020?
A: The 3881020 is the OEM part number. For cross-references or equivalent precision bearing assemblies from other suppliers, contact our parts team with your equipment model number.
