Main Drive Gearbox
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This page explains how Input Shaft & Pinion 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 combined component consisting of an input shaft integrated with a pinion gear, serving as the primary torque input and initial speed reduction stage in a main drive gearbox.
Technical details and manufacturing context for Input Shaft & Pinion
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Module | 1.5–4 mm | Determines tooth size and strengthISO 54 |
| Number of Pinion Teeth | 12–25 | Affects gear ratio and meshing |
| Pressure Angle | 20 ° | Standard for most gearsISO 53 |
| Helix Angle | 10–35 ° | Helical gears for smoother operation |
| Hardness | 58–62 HRC | Case-hardened for wear resistanceISO 6336 |
| Surface Finish | 0.4–0.8 μm Ra | Critical for noise and fatigueISO 1302 |
| Tooth Profile Accuracy | DIN 6–7 | Higher grade for precisionDIN 3962 |
| Input Shaft Diameter | 20–80 mm | Matches coupling and bearing |
| Shaft Length | 100–500 mm | Depends on gearbox layout |
| Torque Capacity | 500–5000 N·m | Based on bending and contact stressISO 6336 |
| Max Speed | 3000–6000 rpm | Limited by dynamic balance and lubrication |
| Operating Temperature | -20–80 °C | Lubricant and material limits |
| Material Grade | 20CrMnTi | Case-hardening steelGB/T 3077 |
| Weight | 5–50 kg | Varies with size and design |
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: | Up to 500 MPa contact pressure |
| other spec: | Max torque: 5000 Nm, Max speed: 6000 RPM, Lubrication required: ISO VG 68-320 |
| temperature: | -40°C to 150°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 Input Shaft & Pinion.
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A practical evidence checklist for RFQ preparation and supplier evaluation.
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Common materials include alloy steels such as 4140 or 4340, case-hardened steel, and carburized steel. A specific grade example is 20CrMnTi per GB/T 3077. The surface hardness is typically 58–62 HRC.
Typical parameters include module 1.5–4 mm, number of pinion teeth 12–25, pressure angle 20°, helix angle 10–35°, tooth profile accuracy DIN 6–7, input shaft diameter 20–80 mm, shaft length 100–500 mm, torque capacity 500–5000 N·m, max speed 3000–6000 rpm, and operating temperature -20 to 80°C.
The pinion gear has fewer teeth than the mating larger gear. When the pinion drives the larger gear, the rotational speed is reduced proportionally to the gear ratio, while torque is increased. This provides the first stage of reduction in the gearbox.
Standards referenced include ISO 54 for module, ISO 53 for pressure angle, ISO 6336 for hardness and torque capacity, ISO 1302 for surface finish, and DIN 3962 for tooth profile accuracy. Always confirm compliance with the manufacturer.
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
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