Ring Body: Load Capacity 50-500 tons, Width 200-600 mm

Component Specifications

Definition

The Ring Body is the primary structural component of a Trunnion Ring assembly, designed to support and facilitate the rotation of large cylindrical loads in industrial applications such as kilns, mills, and rotary dryers. It is engineered to withstand significant radial and axial loads while maintaining precise alignment and minimal friction through integrated bearing surfaces. The component typically features mounting interfaces for rollers or bearings, lubrication channels, and attachment points for ancillary equipment.

Working Principle

The Ring Body operates on the principle of distributed load support through a continuous circular structure. It transfers weight from the rotating drum to stationary support rollers via precisely machined raceways, minimizing point loading and ensuring smooth rotation. The geometric design optimizes stress distribution to prevent deformation under operational loads.

Materials

Forged or cast steel (typically ASTM A36, A572 Grade 50, or equivalent alloy steels), with surface hardness of 200-300 HB for wear resistance. Optional coatings include flame-sprayed ceramics or hard chrome plating for abrasive environments.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Width	200-600 mm
Weight	500-5000 kg
Hardness	200-300 HB
Load Capacity	50-500 tons
Outer Diameter	1500-5000 mm
Surface Finish	Ra 3.2 μm or better
Runout Tolerance	±0.1 mm

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 286-2, DIN 7190

Parent Products

This component is used in the following industrial products

Trunnion Ring

A heavy-duty structural ring that supports and enables the rotation of a Basic Oxygen Furnace vessel.

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Engineering Analysis

Risks & Mitigation

Fatigue cracking under cyclic loading
Wear of bearing surfaces leading to misalignment
Thermal distortion in high-temperature applications
Corrosion in humid or chemical environments

FMEA Triads

Trigger: Insufficient lubrication
Failure: Accelerated wear of raceway surfaces
Mitigation: Implement automated lubrication systems with flow monitoring and regular maintenance schedules

Trigger: Improper installation alignment
Failure: Uneven load distribution causing premature fatigue
Mitigation: Use laser alignment tools during installation and establish quarterly alignment verification procedures

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Geometric tolerances per ISO 2768-mK, dimensional tolerances per ISO 286-2

Test Method

Non-destructive testing (UT/MT), dimensional verification with CMM, surface hardness testing per ASTM E10

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

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Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

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Manufacturers of Ring Body

Manufacturer profiles associated with Ring Body.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

What is the primary function of a Ring Body in trunnion ring assemblies?

The Ring Body provides the main structural support for rotating drums, distributing operational loads evenly across support rollers to prevent localized stress and ensure smooth rotation.

How are Ring Bodies typically manufactured?

They are produced through precision machining of forged or cast steel blanks, with critical surfaces ground to tight tolerances. Advanced methods include CNC turning and vertical boring mills for large diameters.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Ring Body