What to Send in a Plastic Wheel or Jockey Wheel RFQ
Engineering Note What to Send in a Plastic Wheel or Jockey Wheel RFQ A practical buyer guide to plastic wheel RFQ checklist, focused on measurable operating…
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Nylon WheelsPolypropylene WheelsJockey WheelsGuide WheelsTwin Wheel AssembliesMeasurement-Led RFQNylon WheelsPolypropylene WheelsJockey WheelsGuide Wheels
Product Routes
Find the right route into the catalogue
Industrial buyers rarely begin with a complete part number. The useful starting point is usually material, equipment, mounting interface or a replacement wheel already in service. The catalogue is organized around those buyer decisions rather than a long flat model list.
Use product-family cards to move from general need to a manageable shortlist. Each landing page explains selection variables before showing products, so the product grid remains part of an engineering decision instead of becoming the whole page.
Product Family
Plastic Wheels
Nylon and polypropylene loose-wheel families for industrial mobility.
Product Family
Guide Wheels
Guide-wheel assemblies for equipment and trailer support positions.
Product Family
Jockey Wheels
Single, braked and twin-wheel jockey assemblies for trailer handling.
Product Family
Trailer Support Wheels
Support-wheel configurations selected by load, interface and ground condition.
Materials
Choose material with the floor in mind
Nylon and polypropylene are hard thermoplastic wheel families represented in the current catalogue. The final choice still depends on polymer grade, floor condition, load, wheel dimensions, bearing or axle interface and environmental exposure.
Do not use colour as a material specification. If chemicals, wash-down, marking, temperature or contamination matter, state them so the material requirement can be reviewed rather than assumed.
Featured product families
Nylon Wheels
Hard thermoplastic wheels in 150 mm and 200 mm examples.
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Polypropylene Wheels
150 mm PP wheel examples plus brakeable trailer-support configurations.
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Jockey Wheels
Trailer support assemblies for parking and manoeuvring.
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Twin Plastic Wheels
Twin-wheel jack and replacement-wheel arrangements.
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Guide Wheels
6 inch and 10 inch guide-wheel assembly examples.
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Braked Plastic Wheels
Brakeable nylon and PP support-wheel configurations.
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Application paths that change the selection
Wheel selection changes with the machine. A hand-pushed trolley on smooth concrete does not create the same constraints as a trailer support wheel used intermittently on gravel. Equipment bases introduce installed-height and service-access questions, while material handling carts may place more emphasis on steering layout, floor joints and repeated travel.
Material Handling Equipment
Load distribution, repeated travel and floor transitions.
Industrial Trolleys & Carts
Wheel layout, steering behaviour, thresholds and operator effort.
Machinery & Equipment Bases
Installed height, mounting interface, service access and stability.
Trailers & Mobile Equipment
Drawbar load, ground, travel, tube fit and stowed clearance.
Selection
A repeatable selection sequence
Start with duty rather than a wheel photograph. Define equipment weight and payload, then determine the supporting points that share load. Record the floor or ground, choose a practical diameter, identify material environment, measure the interface and only then decide whether brake, swivel or folding functions are needed.
This order makes quotation more efficient because each later decision rests on information that can be measured or observed.
Load, dimensions and clearance
A first-pass load calculation is useful, but uneven floors and flexible frames can prevent equal load sharing. Thresholds and ramps create transient forces. For trailer support, the relevant drawbar load is different from trailer gross mass.
A replacement wheel needs diameter, width, hub/bore and axle information; a complete assembly adds installed height, bracket or tube geometry and movement envelope. These diagrams help buyers capture those measurements before RFQ.
RFQ information that improves the first response
A good enquiry does not have to be a finished engineering drawing. It should distinguish known facts from assumptions. Send existing model if known, clear photos, fit-controlling dimensions, maximum load, floor or ground condition, expected movement, quantity and special material or finish requirements.
For multi-model projects, keep each configuration on its own line. New-client evaluation samples can be discussed for fit or material review, while production quantities and special processes follow their appropriate commercial minimums.
Technical guides for purchasing and engineering
How to Choose Castors & Wheels
Load, floor, material, diameter and mounting in one workflow.
How to Measure a Wheel or Castor
Record dimensions that control replacement fit.
Load Capacity Calculation
Understand supporting points and unequal load sharing.
Jockey Wheel Selection
Ground, drawbar load, travel and clamp fit.
Resources
Latest engineering notes
How to Check Wheel Bearing Play Before Installation
Engineering Note How to Check Wheel Bearing Play Before Installation A practical buyer guide to wheel bearing play inspection, focused on measurable operating conditions and RFQ-ready…
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Why Swivel Castors Can Shimmy or Wander Under Load
Engineering Note Why Swivel Castors Can Shimmy or Wander Under Load A practical buyer guide to swivel caster shimmy causes, focused on measurable operating conditions and…
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Common Causes of Uneven Wheel Wear on Industrial Carts
Engineering Note Common Causes of Uneven Wheel Wear on Industrial Carts A practical buyer guide to industrial cart wheel uneven wear, focused on measurable operating conditions…
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Tube Diameter and Clamp Fit: A Jockey Wheel Replacement Check
Engineering Note Tube Diameter and Clamp Fit: A Jockey Wheel Replacement Check A practical buyer guide to jockey wheel tube diameter clamp fit, focused on measurable…
Read guide →How Much Drawbar Clearance Does a Folding Jockey Wheel Need?
Engineering Note How Much Drawbar Clearance Does a Folding Jockey Wheel Need? A practical buyer guide to folding jockey wheel clearance, focused on measurable operating conditions…
Read guide →A practical sourcing perspective
For replacement and OEM projects alike, the fastest route is to define the operating problem in measurable terms. A wheel is part of a system: frame stiffness, axle or bracket geometry, floor condition and how the operator moves the equipment all influence what should be quoted. Treating those inputs as part of the purchase specification reduces sample loops.
When more than one configuration is involved, use a controlled model list and keep photos, drawings and quantities attached to the correct line item.
Replacement & OEM
Turn a replacement problem into a controlled specification
A useful replacement enquiry starts with the part that actually controls fit. For a loose wheel that is usually diameter, width, bore or bearing arrangement, hub length and axle details. For a support assembly, add tube or plate mounting, installed height, crank or swivel clearance and the way the unit is stowed. Recording these items before the old component is discarded prevents a visually similar part from becoming an accidental substitute.
The same discipline helps new equipment projects. Start with the load carried by the support points, the floor or ground, travel frequency, obstacles and the space available around the wheel. Only then narrow material, diameter and control features. This sequence keeps the discussion practical and gives purchasing a specification that can be compared across quotations.
Selection Logic
Separate wheel choice from complete-assembly choice
Wheel material and diameter answer only part of the mobility problem. A complete castor or jockey-wheel assembly adds swivel geometry, bracket stiffness, mounting dimensions, lifting travel, parking control and clearance around the frame. Keeping wheel-only requirements separate from assembly requirements makes it easier to see which dimensions truly need to match and which features can be selected around the application.
For trailers and mobile support equipment, also distinguish the vertical support condition from manual manoeuvring. A wheel that carries the parked drawbar still has to roll over the real yard surface and retract or fold without contacting the coupling, chassis or ground. These checks should be recorded before a sample or production quantity is approved.
RFQ Preparation
Prepare an RFQ that can move directly into technical review
A clear RFQ normally needs fewer emails than a long product description. State the equipment or trailer type, total weight or support load, wheel diameter and width if known, mounting or axle dimensions, floor or ground, brake or folding requirement, quantity and destination. Add photographs from the side and mounting face, with a ruler or drawing where dimensions are difficult to describe.
When several models are needed, keep each configuration on its own line. This preserves the relationship between dimensions, material, finish and quantity and makes later revisions much easier to control.
Bring the measurements you have
Send application, load, dimensions, quantity and a photo or drawing. Missing fit-critical details can be identified before quotation.
