Product Overview The polymadic wheel provides plenty of durability with a firm tread. The polyurethane tread protects surfaces, and the annular bearings roll very smoothly. These wheels work well for most hard-floor applications due to the high-performance UV resistant materials used. Tread: High-Performance UV-Resistant Polyurethane, Non-Marking, Mechanically Locked To Core This replacement caster component is listed with wheel diameter 5", tread width 1-1/4", load capacity 350 Lbs., tread type High-Performance, UV-Resistant Polyurethane, Non-Marking, Mechanically Locked To Core, and bearing type Ball Bearing. Key Features Load Capacity: 350 Lbs. Wheel Diameter: 5" Tread Width: 1-1/4" Tread: High-Performance, UV-Resistant Polyurethane, Non-Marking, Mechanically Locked To Core Bearing: Ball Bearing Temperature Range: -20° F to 180° F Ideal For Choose this product if you need: A replacement caster component matching the listed mounting and hardware dimensions Loads within the listed 350 Lbs rating Equipment using the listed - 3/4" Tube Inner Diameter (0.720" - 0.851") - 7/8" Tube Inner Diameter (0.852" - 0.927") - 1" Tube Inner Diameter (0.928" - 1.029") - 1-1/8" Tube Inner Diameter (1.030" - 1.140") - 1-3/8" Tube Inner Diameter (1.360" - 1.425") - 1-1/2" Tube Inner Diameter (1.426" - 1.589") - 1-7/8" Tube Inner Diameter (1.790" - 1.850") stem or adapter Applications needing the listed High-Performance, UV-Resistant Polyurethane, Non-Marking, Mechanically Locked To Core wheel or tread Not Ideal For Not ideal when a complete caster with wheel is required, the load exceeds 350 Lbs, the equipment requires a wheel other than 5" diameter by 1-1/4" tread width, or the mounting does not match the listed - 3/4" Tube Inner Diameter (0.720" - 0.851") - 7/8" Tube Inner Diameter (0.852" - 0.927") - 1" Tube Inner Diameter (0.928" - 1.029") - 1-1/8" Tube Inner Diameter (1.030" - 1.140") - 1-3/8" Tube Inner Diameter (1.360" - 1.425") - 1-1/2" Tube Inner Diameter (1.426" - 1.589") - 1-7/8" Tube Inner Diameter (1.790" - 1.850") stem or adapter. Product Details Review the product details below to confirm the wheel diameter, tread width, load capacity, wheel or tread material, bearing, adapter size, and overall height match the replacement component required for your equipment. Shared Product Details Brand Durable Superior Casters Load Capacity 350 Lbs. Wheel Diameter 5" Tread Width 1-1/4" Tread Type High-Performance, UV-Resistant Polyurethane, Non-Marking, Mechanically Locked To Core Core Type Polyolefin Bearing Type Ball Bearing Wheel Color Maroon and Gray Overall Height 6" Swivel Radius 4" Adapter Size - 3/4" Tube Inner Diameter (0.720" - 0.851") - 7/8" Tube Inner Diameter (0.852" - 0.927") - 1" Tube Inner Diameter (0.928" - 1.029") - 1-1/8" Tube Inner Diameter (1.030" - 1.140") - 1-3/8" Tube Inner Diameter (1.360" - 1.425") - 1-1/2" Tube Inner Diameter (1.426" - 1.589") - 1-7/8" Tube Inner Diameter (1.790" - 1.850") Durometer Shore D 60 (+/-5) Temperature Range -20° F to 180° F Model / MPN 21PM50GM4377YY Frequently Asked Questions What is this product used for? Use it when you need a replacement caster component matching the listed mounting and hardware dimensions. What should I check before ordering? Confirm the wheel diameter, tread width, load capacity, mounting dimensions, and bearing or bore shown in Product Details against the equipment being fitted. What temperature range is listed? The original product data lists a temperature range of -20° F to 180° F. Related Resources Need help confirming fit? Review the importance of caster brakes before ordering.