Helical Spur Gear Product Details (Industrial Grade)
(Technical Specifications, Scenario Applications & Engineering Advantages)
1. Core Specifications (ISO 6336-1:2019 Compliant)
| Parameter |
Standard Value (Example) |
Customizable Range |
| Type |
Cylindrical Helical Spur Gear |
Helical Bevel Gear (Upon Request) |
| Normal Module (mn) |
2mm~12mm (Common: mn3, mn4) |
mn0.5~20mm (Special Order) |
| Helix Angle (β) |
15°~45° (Optimal: 20°~25°) |
±0.5° Precision Adjustment |
| Material |
20CrMnTi (Carburized) / 42CrMo |
300M Steel (High-Strength) |
| Precision Grade |
ISO 8~10 (Standard) |
ISO 6 (High-Precision CNC) |
| Contact Ratio |
≥2.5 (vs. Spur Gear: 1.5~2) |
≥3.0 (Customized Tooth Profile) |
2. Scenario-Specific Engineering
Injection Molding Machine Gearbox
- Technical Highlights:
(Tip Relief)+ (Crowning), 72dB
HRC 58( HRC 30), 80,000 ( MA3000 )
- Case Study:
:, 65%,¥45
- Certifications: ISO 19903()
Industrial Reducer (1:100 Ratio)
- Key Design:
(Double Helical),(:≤500N)
(ISO 4927), 3
- Performance:
3,000rpm, 2,500Nm( 98.2%,FZG 12 )
Automotive Transmission
- Automotive-Grade Features:
(20CrMnTi+40Cr ), 18% 22%
Ra 0.8μm(ISO 468),<68dB(GB/T 19055-2021)
- Compliance: IATF 16949, SAE J1728()
3. Manufacturing Process & Quality Control
- Precision Machining:
- KAPP NILES ( ±3μm),≤5μm(ISO 1328 Class 6)
- →→→,<8μm(:15μm)
- Testing Protocol:
| Test Item |
Standard |
Result (Example) |
| Tooth Contact Pattern |
ISO 10064-2 |
≥85% Contact Ratio() |
| Bending Fatigue |
FZG Test (ISO 14635) |
1,200,000 Cycles (Failure Free) |
| Thermal Stability |
-40ºC~120ºC Cycling (500h) |
Dimension Change<0.02% |
4. Advantages Over Spur Gears
| Feature |
Helical Spur Gear |
Spur Gear |
| Noise |
72dB(1,500rpm) |
85dB() |
| Load Capacity |
+35%() |
Baseline |
| Lubrication |
( 30%) |
, |
| Axial Force |
( + 5%) |
|
5. Selection Guide (Industrial Decision Tree)
- By Speed:
<1,000rpm: Spur Gear()
1,000~5,000rpm: Helical Spur()
>5,000rpm: Double Helical(,)
- By Load:
<500Nm: 20CrMnTi()
500~2,000Nm: 42CrMo( + )
>2,000Nm: 300M Steel(,)
- By Environment:
: + IP65 ()
: 316 + ( 1,000h)
6. Visualization & Documentation
- 3D Drawing: Include mn, β, number of teeth, and mounting dimensions (e.g., Φ80H7 bore)
- Test Report: FZG ,( ISO 10064-2 )
- Installation Guide: Axial force calculation formula (F = F × tanβ) and bearing selection chart
7. After-Sales Support
- Warranty: 3 Years/40,000 Hours(); 1 Year/100,000 Km()
- Customization: Free finite element analysis (FEA) for non-standard designs
- Global Service: 24-hour delivery of replacement gears via DHL(,,)
Glossary for Industrial Buyers
- Helix Angle (β): ,
- Normal Module (mn): ,(ISO 6708)
- Contact Ratio: ,>2.5 (ISO 6336-1)
- Tooth Profile Modification: ,
Need a customized datasheet for your application (e.g., wind turbine helical gears, marine gearboxes)? Share your parameters (mn, β, torque) for a tailored solution!
(Prepared by Doubao, March 18, 2025 - Aligned with ISO, SAE, and GB Standards)
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