Elevation Gear Assembly
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This page explains how Main Reduction Gear 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 primary gear component within an elevation gear assembly responsible for achieving the main speed reduction and torque multiplication.
Technical details and manufacturing context for Main Reduction Gear
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Module | 2–10 mm | Determines tooth size and strengthISO 54 |
| Number of Teeth | 20–120 | Affects gear ratio and size |
| Pressure Angle | 20 ° | Standard for most gearsISO 53 |
| Helix Angle | 0–35 ° | 0 for spur, >0 for helical |
| Gear Ratio | 3–10 | Main reduction ratio |
| Accuracy Grade | 6–8 DIN | Lower number = higher precisionDIN 3962 |
| Tooth Surface Hardness | 58–62 HRC | Ensures wear resistance |
| Core Hardness | 30–40 HRC | Balances toughness |
| Material | 20CrMnTi | Case-hardening steelGB/T 3077 |
| Maximum Torque | 1000–5000 N·m | Depends on size and material |
| Operating Temperature | -20–80 °C | Lubricant limits |
| Weight | 50–500 kg | Varies with size |
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 Main Reduction Gear.
This component is essential for the following industrial systems and equipment:
| pressure: | Ambient to 5 bar housing pressure, 0.1 to 100 bar gear tooth contact pressure |
| other spec: | Maximum input speed: 3000 RPM, Maximum output torque: 50,000 Nm, Lubrication flow rate: 2-10 L/min |
| temperature: | -20°C to 120°C continuous operation, -40°C to 150°C intermittent |
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 Main Reduction Gear.
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A practical evidence checklist for RFQ preparation and supplier evaluation.
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The Main Reduction Gear provides the primary stage of speed reduction and torque increase in an elevation gear assembly. It receives high-speed input from a motor and outputs lower speed with higher torque to control lifting or lowering.
Common materials include alloy steels such as 4140 or 4340, case-hardened steel, and carburized steel. A specific grade like 20CrMnTi per GB/T 3077 is also listed. The choice depends on required strength and wear resistance.
Typical ranges include module 2–10 mm, number of teeth 20–120, pressure angle 20°, helix angle 0–35°, gear ratio 3–10, accuracy grade 6–8 DIN, tooth surface hardness 58–62 HRC, core hardness 30–40 HRC, maximum torque 1000–5000 N·m, operating temperature -20 to 80°C, and weight 50–500 kg. These are reference ranges; confirm with the manufacturer.
Always consult the legal manufacturer or supplier to confirm model-specific values and compliance with standards such as ISO 54, ISO 53, DIN 3962, and GB/T 3077. The directory provides reference ranges only.
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
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