ZG55 Cast Steel
Referenced for its heavy-load capability and suitability for a durable roller body when the approved specification calls for this grade.
Heavy-duty support rollers carry the kiln load through the tyre, maintain the shell position and provide a stable running surface for continuous operation.


The kiln support roller is a principal load-bearing component. It carries the weight of the shell, refractory lining, internal heat-exchange devices, material, kiln tyre and girth gear so the rotating body can run smoothly.
AGICO supplies rollers and supporting-roller assemblies to drawing. The original product range references ZG55 and ZG42CrMo steel, together with self-aligning bearing structures and water-cooling arrangements where the equipment design requires them.
Values shown below preserve the original product information while identifying what must be confirmed for the actual order.
| Product | Kiln support roller / support roller for rotary kiln |
|---|---|
| Original material options | ZG55 and ZG42CrMo |
| Assembly scope | Roller body, shaft, bearings, bearing seats and associated parts as agreed |
| Structure option | Drawing-matched sliding or self-aligning rolling-bearing arrangement |
| Cooling | Water-cooling device when required by the original design |
| Supply basis | OEM drawing, site measurement or verified sample data |
Referenced for its heavy-load capability and suitability for a durable roller body when the approved specification calls for this grade.
An alloy-steel option for demanding continuous duty, subject to confirmed mechanical properties and heat-treatment requirements.
Shaft, bearing and seat details are reviewed as one running system to control fit, alignment, lubrication and maintainability.
Carries the kiln tyre and maintains the rotating shell position during continuous clinker production.
Can be engineered for similar tyre-supported rotating equipment after load and interface confirmation.
Replacement rollers can be supplied for worn surfaces, bearing damage or alignment-related maintenance projects.
Kiln model, roller station and left/right position
Roller drawing with diameter, face width, shaft seats and datum tolerances
Bearing model, lubrication method and cooling arrangement
Observed wear profile, cracks, vibration, temperature or alignment symptoms
Material and heat-treatment verification
Shaft and roller-body dimensional inspection
Running-surface hardness and finish checks
Coaxiality, runout and bearing-seat checks
Specified UT or MT examination and document review
The Kiln Support Roller transmits or supports operating load through rotating and stationary interfaces. Its performance cannot be judged by outside dimensions alone. Load path, mating parts, operating environment and the condition of the surrounding equipment all affect whether a replacement will fit correctly and run reliably. AGICO therefore reviews the component as part of the machine rather than treating it as an isolated catalogue item.
For a replacement project, the most useful starting point is the current drawing together with the equipment model and site observations. Wear photographs, failure location, maintenance history and measurements taken during shutdown help distinguish normal consumption from an interface, alignment or operating problem. This review allows the quotation to state the proposed supply boundary and the information that still requires confirmation.
Confirming the following groups of data reduces dimensional risk and avoids selecting the Kiln Support Roller from a name or model reference alone.
Provide the available values, drawing references and photographs for applied radial, axial and transient loads. AGICO will compare them with the proposed Kiln Support Roller configuration and identify any missing inputs before the manufacturing basis is released.
Where site data differs from an old drawing, mark the measured value and the measurement position. The final requirement should be agreed against the approved drawing rather than assumed from a nominal equipment designation.
Provide the available values, drawing references and photographs for mating diameters, fits, datums and bolt pattern. AGICO will compare them with the proposed Kiln Support Roller configuration and identify any missing inputs before the manufacturing basis is released.
The production route for the Kiln Support Roller is established after drawing review. It typically coordinates casting or forging route, heat treatment and rough machining. Process hold points depend on material, geometry and the buyer's inspection requirements. Critical datums and machining references are identified early so that later operations protect the interfaces used during installation.
Inspection is planned around product risk rather than added only at final dispatch. Material traceability and heat-treatment records; Critical journals, bores, faces and runout; Specified NDT at highly stressed transitions; Balance, contact pattern or assembly checks when applicable. When a test or report is required, it should be listed in the enquiry so that sampling, acceptance criteria and document format can be agreed before manufacture. Final release checks also confirm marking, quantity, surface protection and the packing list.
Maintenance teams should evaluate the Kiln Support Roller together with its mating parts and operating records. Typical reasons for closer inspection include:
Unusual vibration, noise or temperature near the component. Record the location, extent and operating condition, then compare the finding with the equipment maker's limits and the site's maintenance procedure before deciding whether repair or replacement is appropriate.
Cracks, scoring, fretting or uneven contact marks. Record the location, extent and operating condition, then compare the finding with the equipment maker's limits and the site's maintenance procedure before deciding whether repair or replacement is appropriate.
Loss of alignment, excessive runout or repeated seal failure. Record the location, extent and operating condition, then compare the finding with the equipment maker's limits and the site's maintenance procedure before deciding whether repair or replacement is appropriate.
Dimension drift that prevents a controlled fit during shutdown. Record the location, extent and operating condition, then compare the finding with the equipment maker's limits and the site's maintenance procedure before deciding whether repair or replacement is appropriate.
AGICO can prepare a drawing-based Kiln Support Roller for new supply or replacement service. The technical review covers the requested material, configuration, interfaces, inspection scope and documentation. If the original drawing is incomplete, provide measurements, nameplate information and clear photographs; the missing points will be listed for confirmation. No order-dependent dimension or performance value is treated as final until it appears in the approved technical documents.
Packing is planned for component weight, geometry, transport mode and destination. Finished surfaces can be protected against handling damage and corrosion, while loose accessories and documents are identified against the packing list. For international delivery, buyers should state the destination, preferred trade terms, lifting or site-access restrictions and required arrival schedule so that the quotation can separate manufacturing scope from freight and local handling.
Complete technical inputs reduce clarification cycles and help us quote the correct supply scope.
Send Your RequirementReview roller duty and interface dimensions
Confirm material, heat treatment and assembly scope
Manufacture and machine components
Inspect geometry and agreed NDT
Protect running surfaces, pack and dispatch
Both options can be evaluated. Define whether the scope includes the roller, shaft, bearings, bearing seats, cooling parts and fasteners.
The original page lists ZG55 and ZG42CrMo. The final grade and heat treatment are confirmed against the approved drawing and duty.
Key data include running diameter and width, shaft and bearing-seat dimensions, datums, coaxiality, runout, surface finish and assembly interfaces.
Yes. Share temperature, vibration, contact pattern, alignment records and photographs so the engineering team can review the replacement requirement.
Send your drawing, operating data and delivery destination for a technical review and quotation.
Request a Support Roller Quote