Product Catalog
High-Temperature Nylon Wheels (HT/DT Class) — Glass-Filled Nylon Rated to +480 °F for Oven-Side Duty
Updated 2026-11
High-temperature nylon wheels extend the glass-filled nylon family past the temperature wall that stops ordinary polymers. Two published lines define the class: HT, a high-heat glass-filled nylon rated -20 to +480 °F at 800-1,400 lb over 4-8 in, and DT, the heavy-duty variant at 800-1,600 lb with a -20 to +350 °F window. Per-SKU manufacturer data shows what the construction delivers in practice: a 4 in HT wheel rated 800 lb at 75-80 Shore D with straight roller bearings, listed for heavy-duty bakery racks, dough troughs and food-processing duty.
Second-publisher oven-duty guidance explains where this class belongs: for oven racks, the recommended non-metallic choices are high-temperature glass-filled nylon, high-temperature phenolic, or high-temperature epoxy — with steel often discouraged because it damages epoxy floor coatings common in food plants. High-temp nylon is the pick when the duty needs polymer toughness and floor protection at temperatures that would melt polyurethane or embrittle ordinary plastics, but not the sustained extremes where only metal survives. Our supply path is own production plus outsourcing; standard constructions ship in 15-20 days, custom configurations in 30-40 days.
Specifications
| Type | High-temperature / heavy-duty glass-filled nylon wheels; plain bore or with bearings |
|---|---|
| HT line band (manufacturer reference) | 800-1,400 lb at 4-8 in diameter; -20 to +480 °F |
| DT line band (manufacturer reference) | 800-1,600 lb at 4-8 in diameter; -20 to +350 °F |
| Per-SKU data (manufacturer reference) | HT 4 x 2 in: 800 lb, 75-80 Shore D, straight roller bearing; DT 4 x 2 in: 1,000 lb, 75-80 Shore D — per-SKU values, never a family rating |
| Duty class (industry reference) | Oven-rack recommended non-metallic class (with high-temp phenolic and epoxy); bakery racks, dough troughs, food processing |
| Lead time | 15–20 days (custom configurations 30–40 days) |
| MOQ | 200 pieces (standard catalog items ship in smaller quantities) |
| Warranty | 18 months |
HT and DT are separate manufacturer lines — each band and each per-SKU row stays its own reference and is never merged into one family figure. The rating for your diameter, load and thermal cycle is stated on the quotation.
Applications & Selection
What glass fill buys at oven temperature
Ordinary nylon starts losing its mechanical properties well below oven-duty temperatures; the glass fiber reinforcement is what moves the wall. The published HT line is rated to +480 °F — beyond the +250 °F ceiling of the standard glass-filled class and far past the ~180 °F polyurethane limit — while keeping the nylon family traits that matter around food plants: no marking, corrosion immunity in wet or washed environments, and rolling effort far below metal wheels. The DT variant trades some of that ceiling (+350 °F) for a heavier load band, sharing the same 75-80 Shore D hardness class on the manufacturer SKU data.
Second-publisher oven-rack guidance positions the class against its neighbors: among non-metallic wheels, high-temperature glass-filled nylon is recommended alongside high-temp phenolic and high-temp epoxy for oven racks, with a practical caveat — steel wheels are often discouraged in food plants because they score epoxy floor coatings. Nylon therefore occupies the middle of the oven ladder: tougher and quieter than phenolic under impact, floor-friendlier than metal, and outclassed only when sustained temperatures or loads exceed the published bands.
Selection points to settle before you RFQ
Match the line to the thermal cycle, not the peak: the HT band runs to +480 °F while DT tops at +350 °F with more load — a rack spending an hour at +400 °F needs the HT line even if DT carries more weight. Published oven-duty guidance is explicit that continuous temperature at the wheel governs, and that the bearing and lubricant have their own, often lower, ceilings — a +480 °F wheel on a standard-grease bearing fails in the bearing first, so high-temperature lubrication belongs in the RFQ.
Then the load and envelope: the HT/DT bands sit at 800-1,600 lb over 4-8 in diameters — check them against your per-wheel load with the divide-by-three safety practice. Per-SKU rows (800 lb or 1,000 lb at 4 x 2 in, 75-80 Shore D) are exactly that: single-SKU references, not interpolable family ratings. State the application too — bakery rack, dough trough, curing oven — because bracket material and corrosion requirements follow it. Standard constructions ship in 15-20 days, custom bores and bearings in 30-40 days, MOQ 200 pieces.
Frequently Asked Questions
High-temperature nylon or heat-resistant phenolic for a bakery rack?
Both are published oven-rack recommendations. Nylon is tougher under impact, quieter, immune to washdown chemistry, and the HT line is rated to +480 °F; phenolic goes harder and, in its heat-resistant branch, publishes -65 to +475 °F with higher capacity per size but more shock transmission. Second-publisher guidance lists them in the same recommended class — so decide on impact, washdown and noise, and confirm both ratings at quotation for your actual thermal cycle.
Can high-temperature nylon wheels replace cast iron in an oven?
Only inside the published bands. HT is rated to +480 °F and DT to +350 °F; cast iron publishes -40 to +800 °F and carries multiples of the load. Below the nylon ceiling, nylon wins on rolling effort, floor protection and corrosion; beyond it — sustained +500 °F and up, or impact at temperature — metal is the only answer. Published oven-duty guidance adds a food-plant wrinkle: steel wheels damage epoxy floors, so the metal comparison should include ductile or coated options where floors are finished.
What should my high-temperature nylon RFQ include?
Continuous and peak temperature at the wheel (not just oven set-point), thermal cycle pattern, load per wheel with your safety divisor, diameter and width, bore and bearing type with high-temperature lubrication, washdown/chemical exposure, and quantity. Ask for the per-configuration rating and which component limits it — the published bands are line references; the quotation is the commitment.
Ordering & Documentation
Documents
Every order ships with a packing list and commercial invoice. Dimensional drawings (diameter, width, bore, hub length) are available on request, and the quotation states the temperature basis of the rating together with the bearing and lubricant specification.
Quotation
A quotation needs: continuous and peak temperature, thermal cycle, load per wheel, diameter and width, bore and bearings with lubrication class, environment, and quantity. The confirmed quotation states the rating for your configuration — the HT/DT bands above are published line references, not the commitment.
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 lubrication. The usual validation is a trial set through a full production bake cycle, then a bore, raceway and lubricant inspection while warm.
Storage & shipping
Glass-filled nylon stores like any thermoplastic: dry cartons, away from sustained heat sources, bearings greased with the grade the duty requires. Before installation, check the bore for transit damage and confirm bearing fit — at these temperatures a marginal bearing fit becomes the first failure point, not the wheel.