4 Inch Rigid Polyurethane Caster Wheel 375 lb Load Non‑Marking Smooth Rolling Fixed Plate Design

33H938A Rigid Plate Caster, 4 inch Polyurethane Wheel, 375 lb Load Rating Key benefits Stable, fixeddirection support for equipment that needs consistent tracking and firm positioning. Polyurethane tread over a polyolefin core delivers smooth rolling, abrasion resistance, and nonmarking performance on indoor floors. Compact overall height and a narrow wheel profile fit into tight spaces while still carrying substantial loads. Features and specifications Model: 33H938A Type: Rigid plate caster, single wheel Load rating: 375 lb per caster Wheel diameter: 4 inches Wheel width: 1.5 inches Overall height: 53/16 inches Wheel tread material: Polyurethane Wheel core material: Polyolefin Nonmarking: Yes Caster brake: No brake included Swivel lock type: No lock included (rigid orientation) Tread shape: Standard Why choose this caster Reliable load capacity for carts, racks, and equipment that require a fixed caster configuration. The polyurethane tread helps reduce noise and rolling resistance compared to hard wheels while protecting floor finishes from scuffs. Polyolefin core keeps the wheel lightweight and durable for frequent use. Compatibility and installation Designed for plate mounting on equipment with a flat mounting surface. Verify plate hole pattern and fastener size before installation. Intended as a direct replacement or upgrade caster when a rigid, 4 inch polyurethane wheel is required. Typical applications Service and utility carts that need stable, straightline movement in warehouses or light industrial settings. Mobile display racks and fixtures used in retail environments where floor protection and quiet operation matter. Food service or catering equipment that benefits from nonmarking wheels and durable rolling performance. This rigid plate caster offers straightforward, dependable performance where a fixed caster is preferred. Check mounting plate compatibility and load requirements when specifying for multicaster assemblies.