Product Catalog
Heat-Resistant Phenolic Wheels (TR Class) — Macerated Fabric Resin Wheels for Oven-Side Duty
Updated 2026-11
Heat-resistant phenolic wheels are the high-temperature branch of the phenolic family. Standard phenolic is a macerated fabric (canvas or denim cotton) impregnated with phenolic resin and formed under heat and pressure; the heat-resistant lines use a heat-tolerant resin system in the same molded-fabric construction. The result keeps the phenolic virtues — high capacity for the envelope, low rolling effort, no floor marking — and extends the service temperature from the standard class window to a published -65 to +475 °F on the manufacturer selection chart.
The published evidence has an honest gap: on the same chart row that publishes the temperature band, the capacity and size cells for the heat-resistant line are blank — the manufacturer publishes no open capacity table for this line, unlike the standard phenolic class (500-8,000 lb, 4-18 in). Second-publisher class references put phenolic service at up to +525 °F, but a wheel rating at your diameter, load and cycle is a quotation item, not a chart lookup. Our supply path is own production plus outsourcing; standard constructions ship in 15-20 days and custom configurations in 30-40 days.
Specifications
| Type | Heat-resistant phenolic resin wheels (macerated fabric + heat-tolerant resin, molded); plain bore or with bearings |
|---|---|
| Temperature (manufacturer reference) | -65 to +475 °F published on the wheel-selection chart for the heat-resistant phenolic line |
| Capacity / size | Not published for the heat-resistant line (blank cells on the chart) — confirmed at quotation per configuration |
| Class context (manufacturer reference) | Standard phenolic family: 500-8,000 lb, 4-18 in diameter, 1-1/2 to 6 in tread width |
| Class temperature (industry reference) | Phenolic canvas/resin construction referenced at -40 to +525 °F for oven duty by a second publisher |
| Hardness (industry reference) | Phenolics class 145-150 Scale R — hard wheel, minimal tread deflection |
| Lead time | 15–20 days (custom configurations 30–40 days) |
| MOQ | 200 pieces (standard catalog items ship in smaller quantities) |
| Warranty | 18 months |
The temperature band is a published manufacturer line value; capacity for the heat-resistant line is not published and is deliberately not merged in from the standard phenolic class. Your rating at the actual diameter, load and duty cycle is stated on the quotation.
Applications & Selection
Where the heat-resistant resin earns its premium
Standard phenolic is rated for continuous service well past polyurethane limits — published class comparisons put phenolic at up to about +325 °F continuous versus roughly +180 °F for PU — and the heat-resistant branch extends that further: the manufacturer chart publishes -65 to +475 °F, and second-publisher oven-duty references go to +525 °F. The mechanism is the material itself: a resin-saturated fabric matrix has no rubbery phase to soften, so heat that would delaminate a bonded PU tread instead only tests the resin system. That is why oven-side carts, bakery racks, curing fixtures and heat-treatment transfer dollsies specify phenolic rather than polyurethane.
The published selection guidance draws the boundary clearly: phenolic is chosen for "maximum capacity, heat, oil, or solvents" — the four duties where elastomer treads fail first. It is rigid, so it transmits more shock than rubber or PU and is at its best on concrete-style industrial floors. And because the heat-resistant line shares the molded-fabric construction, the failure modes to inspect for are resin cracking and bore distortion after thermal cycling, not tread delamination.
Selection points to settle before you RFQ
Start with the actual continuous temperature at the wheel, not the oven set-point: air near the door, floor level and rack position all differ, and a wheel cools every time it leaves the hot zone. Published oven-duty guidance is explicit that the continuous rating governs, and that lubricant choice moves with it — a wheel specified for +475 °F on a standard-grease bearing fails at the bearing first. State the cycle, too: continuous dwell versus in-and-out thermal cycling load the wheel differently.
Then the normal envelope: load per wheel with your safety divisor, diameter and tread width, bore and bearing type. Because the heat-resistant line has no published capacity table, the quotation is the only rating that exists — ask the supplier to state the rating and its duty basis in writing, and which component (resin, bearing, lubricant) limits it. At extreme dwell temperatures a metal or high-temperature-nylon wheel may be the safer comparison; our high-temperature caster page covers the full material ladder.
Our path is own production plus outsourcing: standard constructions in 15-20 days, custom bores, bearings or resin systems in 30-40 days, MOQ 200 pieces with smaller trial quantities of catalog items in some sizes.
Frequently Asked Questions
How is heat-resistant phenolic different from standard phenolic?
Both are macerated fabric (denim cotton or canvas) impregnated with phenolic resin and molded under heat and pressure. The heat-resistant lines use a heat-tolerant resin system, which moves the published service band from the standard class window (-65 to +250 °F on the same chart) to -65 to +475 °F. Mechanically they behave alike — hard, high-capacity, low rolling effort — so the choice between them is temperature at the wheel, nothing else.
What capacity can a heat-resistant phenolic wheel carry?
The manufacturer publishes no open capacity table for the heat-resistant line — the capacity and size cells are blank on its selection chart — so any number would be an extrapolation from the standard phenolic class (500-8,000 lb, 4-18 in), and we do not render one. Send the load per wheel, diameter and duty cycle and treat the quotation rating, stated with its duty basis, as the only valid figure.
Phenolic or cast iron for an oven cart?
Published oven-duty guidance recommends non-metallic wheels — high-temperature glass-filled nylon, high-temperature phenolic or high-temperature epoxy — for food-production racks partly because steel wheels damage epoxy floor coatings. Cast iron still wins at sustained temperatures beyond polymer limits or under impact loads. Pick by the three published filters: temperature at the wheel, floor coating, and impact; phenolic covers the middle band where nylon is cooling-limited and steel is floor-hostile.
Ordering & Documentation
Documents
Every order ships with a packing list and commercial invoice. Dimensional drawings (diameter, tread width, bore, hub length) are available on request, and the quotation states the duty basis behind the rating — the disclosure that matters most on a line with no published capacity table.
Quotation
A quotation needs: continuous and peak temperature at the wheel, load per wheel with your safety divisor, diameter and tread width, bore and bearings, cycle pattern (dwell versus in-and-out), and quantity. The confirmed quotation states the rating for your configuration and which component limits it — resin, bearing or lubricant.
Sample & supply
Standard constructions are produced to order with an MOQ of 200 pieces; smaller trial quantities of catalog items can ship in some sizes — ask with your RFQ. Lead time is 15-20 days standard, 30-40 days for custom bores, bearings or resin systems. The usual validation for oven duty is a trial set through a full production cycle, then a resin and bore inspection while the wheel is still warm.
Storage & shipping
Phenolic wheels store dry and shaded like any thermoset; the material does not age the way elastomers do, but bearings and lubricants do — rotate stock by bearing grease life, not wheel life. Before installation, check the bore for ovality and the tread surface for resin cracks from transit shock.