Crawler Excavator
View system integration details
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.
| 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.
A practical evidence checklist for RFQ preparation and supplier evaluation.
Compare the published product scope and source details, then include your specifications and quantity in an enquiry.
3 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.
Explore company information and manufacturing capabilities, then discuss the scope of your project with a relevant supplier.
Ask for use case, specification boundaries, supplier type, and RFQ preparation information for this product.
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.
This component is essential for the following industrial systems and equipment:
Commonly used trade names and technical identifiers for Swing Bearing.
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
Compare manufacturer profiles with relevant product and process capability.