Product Description
Replacement radial ball bearing with dual rubber shields for manual pallet jack load wheels. Nominal dimensions: 20 mm bore x 47 mm outer diameter x 14 mm width. Constructed from high-carbon chrome steel with pre-lubricated design. Direct interchange for industry-standard 6204-2RS bearing formats.
Specifications
Dimensions
| Bore | 20 mm |
| Outer Diameter | 47 mm |
| Width | 14 mm |
Material
| Ring Material | AISI 52100 chrome steel |
| Ball Material | High-carbon chrome steel |
| Seal Material | Synthetic rubber |
Features
| Design | Pre-lubricated with dual rubber shields |
| Interchange Standard | 6204-2RS direct replacement |
| Applications | Manual pallet jack load wheels, electric pallet jack and forklift wheels, industrial load wheel assemblies |
Frequently Asked Questions
Q: What equipment does the 3051191 bearing fit, and is it a direct replacement?
A: The 3051191 is a 6204-2RS direct interchange bearing used in manual pallet jack load wheels across Crown, Toyota, Raymond, Yale, and similar equipment lines. The 20 mm bore and 47 mm outer diameter match industry-standard pallet jack wheel hubs. Verify your equipment model serial range before ordering to confirm compatibility.
Q: What are the exact dimensions of the 3051191?
A: The 3051191 has a bore of 20 mm, outer diameter of 47 mm, and width of 14 mm. These dimensions conform to the 6204-2RS standard radial ball bearing format. Confirm these measurements match your load wheel hub and axle specifications before ordering.
Q: What materials are used in the 3051191 bearing?
A: The 3051191 uses AISI 52100 chrome steel for the inner and outer rings, high-carbon chrome steel balls for load-bearing surfaces, and synthetic rubber dual seals. This material combination provides corrosion resistance, hardness, and load capacity suitable for heavy-duty pallet jack applications.
Q: How does the dual-shield design protect the 3051191?
A: The 3051191 has dual rubber shields on both sides that keep water, dust, and debris out while retaining grease. This design is more protective than single-shield bearings for warehouse floors, wet environments, and general industrial use. The sealed design extends bearing life in contaminated conditions.
Q: Is the 3051191 pre-lubricated, and does it require maintenance?
A: The 3051191 is pre-lubricated with sealed shields that retain factory grease. It does not require additional greasing under normal manual pallet jack use. The sealed, dual-shield design minimizes maintenance. Inspect for noise or resistance; if the bearing does not rotate smoothly, it may need replacement.
Q: What is the expected lifespan of the 3051191?
A: Under typical warehouse manual pallet jack duty, the pre-lubricated sealed 3051191 should perform for 3000 to 7000 operating hours depending on load, floor conditions, and maintenance. Wet floors, cold storage, salt, or high cycling will reduce lifespan. Replace if play develops, noise occurs, or rotation becomes resistant.
