Crawler Excavator
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This page explains how Swing 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 enables the upper structure of a crawler excavator to rotate relative to the undercarriage.
Technical details and manufacturing context for Swing Bearing
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Rated Dynamic Load | 100–500 kN | Based on L10 life of 3000 hoursISO 76 |
| Rated Static Load | 200–1000 kN | No rotation under loadISO 76 |
| Tilting Moment Capacity | 50–300 kN·m | Max moment before instability |
| Raceway Diameter | 400–2000 mm | Matches excavator size class |
| Overall Height | 60–200 mm | Affects machine clearance |
| Weight | 50–500 kg | Influences transport and installation |
| Operating Temperature | -40–85 °C | Seals and grease rated for this range |
| Maximum Rotational Speed | 1–5 rpm | Typical for excavator swing |
| Radial Runout | 0.05–0.15 mm | Tighter for precision applicationsISO 1101 |
| Axial Runout | 0.05–0.15 mm | Affects smooth rotationISO 1101 |
| Gear Module | 4–12 mm | For slewing drive engagementISO 54 |
| Number of Teeth | 60–150 | Determines gear ratio |
| Degree of Protection | IP54–IP65 | Dust and water resistanceIEC 60529 |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
Commonly used trade names and technical identifiers for Swing Bearing.
This component is essential for the following industrial systems and equipment:
| pressure: | Up to 250 MPa static load capacity |
| other spec: | Axial load capacity: 100-500 kN, Radial load capacity: 50-300 kN, Rotational speed: 0-5 RPM continuous |
| temperature: | -40°C to +120°C |
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.
Manufacturer profiles associated with Swing Bearing.
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.
CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.
The swing bearing connects the upper structure to the undercarriage, allowing 360-degree rotation of the boom, arm, and bucket. It supports axial, radial, and moment loads while enabling smooth rotation during operations.
Based on ISO 76, the rated dynamic load is typically 100–500 kN, and the rated static load is 200–1000 kN. These values are reference ranges and must be confirmed for the specific model and application.
Common materials include high-carbon chromium bearing steel and alloy steel. These materials provide hardness and wear resistance for long service life.
Always check the manufacturer's datasheet or technical manual for the exact values of load ratings, dimensions, runout, and standards. The directory values are only reference ranges.
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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