The below capacity ranges indicate the working (dynamic) load that each caster will support. A safety factor should be included in your formula to determine your required load rating per caster.

W/(C-1)=R W is total weight needed to move. C is total number of casters required. R is ideal load rating, with safety factor built in. Divide the total load weight by one less caster than you will use to safely determine load rating.

4" x 2" Phenolic Wheels

Diameter: 4 inTread: 1-1/4 to 2 inCapacity: 250 to 600 lb per wheelBrand: Durastar

You get two high-temp phenolic replacement wheels here from Durastar, 4 in across on 1-1/4 to 2 in treads, rated 250 to 600 lb per wheel. Picks range from a 4 x 1-1/4 in hi-temp phenolic industrial replacement wheel rated 250 lb to a 4 x 2 in phenolic industrial replacement wheel rated 600 lb. High temperature phenolic handles heat and grease that would soften a standard tread.

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2 types

Wheel = wheel diameter · capacity is per wheel.

Key Product Features

High-Temp Performance: Designed to withstand extreme heat up to 475Â°F continuous and 525Â°F intermittent temperatures

Durable Phenolic Construction: Compression-molded phenolic resists oils, grease, chemicals, and steam cleaning

Load Capacity: Supports heavy loads while maintaining excellent rollability under high-heat conditions

Non-Marking Tread: Protects flooring from scuffs and marks, making it ideal for cleanroom and industrial use

Wheel Diameter: 4 inches â€“ compact size ideal for tight, high-demand environments

Durastarâ€™s TPH Series Hi-Temp Phenolic Wheels are expertly engineered for environments that demand high-heat tolerance and industrial durability. Made from compression-molded phenolic resin, these 4-inch wheels are capable of withstanding continuous temperatures of 475Â°F and short bursts up to 525Â°F without compromising performance.

Perfect for autoclaves, ovens, and steam-cleaning zones, these wheels resist oil, grease, and harsh chemicalsâ€”ensuring a long lifespan in the most demanding conditions. The non-marking tread safeguards floor surfaces, making them equally suited for commercial kitchens, medical facilities, and cleanrooms.

Compact yet heavy-duty, the 4" TPH wheel provides reliable mobility without sacrificing strength or heat resistance. Whether you're replacing caster wheels on high-temp equipment or building custom carts, Durastar TPH Wheels deliver lasting performance, safety, and value.

BHP: 1-3/4″ × 2-7/8″, slotted to 3″

BHP: 1-3/4″ × 2-15/16″ slotted to 2-3/8″ × 3-3/8″

BHP: 2-5/8” X 3-5/8” (Slotted to 3” x 3”)

BHP: 2-7/16" x 4-15/16" slotted to 3-3/8" x 5-1/4"

(3″ Wide Casters), Industry-Standard

BHP: 3-3/8" x 5-1/4" slotted to 4-1/8" x 6-1/8"

BHP: 4-1/8" x 6" slotted to 4-1/2" x 6-1/8"

View All • 21 Plate Sizes

Plate Casters

Stem Casters

Stainless Casters

Ergonomic Casters

Leveling Casters

4" x 2" Phenolic Wheels

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Durastar TPH Series â€“ 4" High-Temperature Phenolic Wheels

Key Product Features

Engineered for Heat. Built for Endurance.