Rotational Bearing Assembly
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This page explains how Slewing Ring Bearing is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.
A large-diameter bearing that supports axial, radial, and moment loads while enabling rotational movement between two structures.
Technical details and manufacturing context for Slewing Ring Bearing
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Outer Diameter | 200–6000 mm | Standard range; larger sizes on request |
| Inner Diameter | 100–5500 mm | Must be smaller than outer diameter |
| Axial Load Capacity | 20–5000 kN | Static load ratingISO 76 |
| Radial Load Capacity | 15–3000 kN | Static load ratingISO 76 |
| Tilting Moment Capacity | 10–5000 kN·m | Static load ratingISO 76 |
| Rotational Speed | 0.5–10 rpm | For continuous rotation; higher for oscillation |
| Operating Temperature | -40–85 °C | Standard seals; extended range available |
| Radial Runout | 0.05–0.5 mm | Depends on diameter and precision classISO 1101 |
| Axial Runout | 0.05–0.5 mm | Depends on diameter and precision classISO 1101 |
| Weight | 50–5000 kg | Approximate; varies with size and design |
| Ingress Protection | IP54–IP65 | Higher IP available with special sealsIEC 60529 |
| Gear Hardness | 45–60 HRC | For slewing rings with gear teeth |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is essential for the following industrial systems and equipment:
| pressure: | Max contact pressure: 4000-6000 MPa depending on material and design |
| other spec: | Max rotational speed: 0.5-5 rpm (varies with diameter), Load capacity: Axial: 100-10,000 kN, Radial: 50-5,000 kN, Moment: 100-20,000 kNm |
| temperature: | -40°C to +120°C (standard), up to +200°C with special materials |
Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.
Quoted from the published standard.
4 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.
Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.
A practical evidence checklist for RFQ preparation and supplier evaluation.
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A slewing ring bearing is used to support combined axial, radial, and moment loads while enabling rotation between two structures. It is commonly found in cranes, excavators, wind turbines, and other heavy machinery.
Slewing ring bearings are typically made from alloy steel or bearing steel, which provide high strength and wear resistance. The specific material grade should be confirmed with the manufacturer.
The axial load capacity ranges from 20 to 5000 kN, radial load capacity from 15 to 3000 kN, and tilting moment capacity from 10 to 5000 kN·m, based on static load ratings per ISO 76. These are reference ranges and must be verified for the specific model.
You must check the required dimensions, load capacities, rotational speed, operating temperature, and precision tolerances against the manufacturer's specifications. Always confirm model-specific values and standards with the legal manufacturer or supplier.
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
Ask for use case, specification boundaries, supplier type, and RFQ preparation information for this product.
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