4 in Polyurethane Stem Caster, Iron Core, 616 lbs Load, Fixed Pkg Qty 2

Overview

This heavy-duty fixed stem caster is engineered for rigorous industrial

material

handling

applications

where stability and load capacity are paramount. Featuring a robust 4-inch polyurethane wheel mounted on a durable iron core, this unit supports substantial weights while maintaining smooth operation. The design prioritizes floor protection and noise reduction, making it suitable for indoor facilities that require quiet, non-marking mobility. With a rigid mounting configuration, these casters eliminate swivel play to ensure precise straight-line tracking, providing reliable directional control for carts, racks, and specialized equipment in demanding environments.

Key Features

High-load capacity rated up to 616 lbs per caster Non-marking polyurethane tread protects sensitive flooring surfaces Iron core construction provides superior structural integrity and impact resistance Fixed stem design ensures stable, straight-line movement without lateral drift Low rolling resistance facilitates easy pushing and maneuvering under load Quiet operation ideal for noise-sensitive warehouses and production floors Compact overall profile fits within tight equipment clearances

Specifications

Load Capacity

616 lbs

Wheel Diameter

4 in Wheel

Material

Polyurethane Core

Material

Iron Stem Type: Fixed (Rigid) Overall Dimensions: 4.5 x 1.96 x 5.71 in Package Quantity: 2 units per pack

Applications

Heavy-duty industrial cart transport Warehouse order picking systems Manufacturing assembly line equipment Hospital and healthcare facility gurneys requiring quiet movement Food service distribution racks Audio-visual equipment stands needing stable positioning Library book trucks and archival storage movers Product Performance and Durability The integration of a high-grade polyurethane tread with a solid iron hub creates a balanced solution for facilities that cannot compromise on floor safety or equipment longevity. Unlike softer rubber compounds that may deform under extreme weight, the polyurethane formulation used here maintains its shape under the full 616 lb rating, ensuring consistent rolling efficiency over time. The fixed stem mechanism is specifically designed to prevent the wobbling associated with swivel casters, which is critical when moving tall or top-heavy loads that require unwavering stability. The overall dimensions of 4.5 inches in length, 1.96 inches in width, and 5.71 inches in height allow for seamless integration into existing machinery frames without requiring significant modifications. This product is supplied in packs of two, facilitating easy replacement or paired installation for balanced weight distribution on four-wheeled platforms.