JU 51237318-SG

Frequently Asked Questions

Q: What are the key specifications of the JU 51237318-SG caster wheel with string guards?
A: The JU 51237318-SG is a 4 inch diameter caster wheel with 2.5 inch tread width. It features a 95A durometer polyurethane tread, high-strength steel core with sealed bearings, and polymer composite string guards. The wheel is rated for Jungheinrich electric pallet jack applications and is an OEM direct fit component.

Q: What is the purpose of the string guards on this wheel assembly?
A: The polymer composite string guards protect the wheel edges and reduce the accumulation of plastic strapping, wire, and other linear debris that can wrap around the caster. This extends wheel life and reduces maintenance downtime in environments where packaged goods or strapping materials are handled frequently.

Q: Does the JU 51237318-SG fit equipment designed for the standard JU 51237318?
A: The JU 51237318-SG has the same wheel diameter and width as the standard JU 51237318, but the string guards add material to the wheel assembly. Fitment depends on whether your caster pocket accommodates the larger profile. Verify your equipment specifications and compare the width and depth of the caster cavity before ordering.

Q: What is the sealed bearing design and why does it matter?
A: The sealed bearing design prevents moisture, dust, and debris from entering the bearing cavity. This means the bearings do not require periodic relubrication and have extended service life compared to open bearings. The sealed design is especially important in facilities with high-humidity, wet, or dusty conditions.

Q: Can the JU 51237318-SG string guards be removed if not needed?
A: The string guards are integral to the wheel assembly design and are not removable components. If your application does not require string guards or space is limited, order the standard JU 51237318 instead. Compare both SKUs to confirm which matches your caster pocket dimensions and operational needs.