House (Upper Structure)
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This page explains how Swing Gearbox 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.
The swing gearbox is a mechanical transmission component installed in the upper structure (house) of machinery, such as excavators, cranes, or drilling rigs.
Technical details and manufacturing context for Swing Gearbox
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Rated Torque | 5000–50000 N·m | Determines the size of the gearbox; select based on load requirements. |
| Reduction Ratio | 20–200 | Higher ratio provides more torque but lower output speed. |
| Output Speed | 0.5–10 r/min | Typical range for slewing applications; higher speeds may require special lubrication. |
| Backlash | ≤0.1 ° | Critical for positioning accuracy; lower is better for precision applications.ISO 1328 |
| Operating Temperature | -20–60 °C | Outside this range, lubricant performance degrades. |
| Protection Class | IP54–IP65 | Higher IP rating for dusty or wet environments.IEC 60529 |
| Gear Material | 20CrMnTi | Carburized and hardened for wear resistance.GB/T 3077 |
| Housing Material | QT450-10 | Ductile iron for strength and damping.GB/T 1348 |
| Weight | 50–500 kg | Affects installation and structural support requirements. |
| Input Speed | 1500–3000 r/min | Typical motor speeds; gearbox must be rated for this. |
| Efficiency | ≥95 % | Higher efficiency reduces energy loss and heat generation. |
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 Gearbox.
This component is essential for the following industrial systems and equipment:
| pressure: | Up to 10 bar |
| speed range: | 0-300 rpm |
| temperature: | -20°C to 120°C |
| torque capacity: | 50-5000 Nm |
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 Gearbox.
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A practical evidence checklist for RFQ preparation and supplier evaluation.
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The reduction ratio typically ranges from 20 to 200. A higher ratio provides more torque but lower output speed. The specific ratio should be selected based on the required output speed and torque for the application.
Common materials include cast iron for housings, alloy steel (e.g., 20CrMnTi) for gears, and bronze or bronze alloys for bushings. Housing material may be ductile iron (e.g., QT450-10). These materials provide strength, wear resistance, and damping.
Backlash is the amount of clearance between mating gear teeth. It is critical for positioning accuracy; lower backlash (≤0.1°) is better for precision applications. It is measured according to ISO 1328. Excessive backlash can cause positioning errors and vibration.
Always confirm model-specific values such as rated torque, reduction ratio, operating temperature, and protection class with the legal manufacturer or supplier. Standards like ISO 1328, IEC 60529, GB/T 3077, and GB/T 1348 are references for verification, not proof of compliance.
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
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