Hollow Helical Gear with Keyway

• Customization: Available
• Application: Motor, Electric Cars, Motorcycle, Machinery, Marine, Toy, Agricultural Machinery, Car, Industrial Machinery Area
• Hardness: Hardened Tooth Surface
• Model NO.: FD-SG0020
• Gear Position: Internal Gear
• Manufacturing Method: Cast Gear
• Toothed Portion Shape: Bevel Wheel
• Material: Cast Steel
• Type: Bevel Gear
• Transmission Type: Planetary Gear Reducer + DC/AC Motor Combination
• Ratio Range: 5:1 - 200:1 (Customizable)
• Max Output Torque: 50n·m - 500n·m (Model - Dependent)
• Mounting Methods: Flange Mount (4 - M6 Holes) / Shaft Mount (with Lo
• Service Life: 10,000 Hours (L10 Life at 20% Load)
• Transport Package: Custom Wooden Box + Metal Support Frame
• Specification: The module is 3mm, the number of teeth is 20, the
• Trademark: Jinjiang Feida
• Origin: Quanzhou
• HS Code: 1601002090
• Production Capacity: 1000000
• Package Size: 28.00cm * 28.00cm * 28.00cm
• Package Gross Weight: 10.000kg

Product Description

Table 1: General Product Overview

 

Item	English Description	Notes
Product Name	Helical Gear	Core terminology
Standards	ISO 1328 (Tooth Tolerance), AGMA 2001 (Design)	International standards
Helix Direction	Right-Hand / Left-Hand Helix	Common configurations
Type	Single Helical / Double Helical (Herringbone)	Single/double helix
Materials	Alloy Steel (20CrMnTi, 42CrMo), Stainless Steel, POM	High-strength options
Surface Treatment	Carburizing & Quenching, Nitriding, Chrome Plating	Enhance durability
Applications	Automotive transmissions, industrial gearboxes, robotics, aerospace	Key industries

Table 2: Technical Parameters

 

Parameter	English Description	Typical Values
Module	Module (m)	2, 3, 4, 5 mm
Teeth Count	Number of Teeth (Z)	17, 24, 32
Helix Angle	Helix Angle (β)	15°, 20°, 25°
Pressure Angle	Pressure Angle (α)	20°, 25°
Face Width	Face Width (b)	20-50 mm
Precision Grade	Precision Grade (ISO/AGMA)	ISO 6, AGMA 10
Gear Ratio	Gear Ratio	1:2 to 1:10
Max Speed	Maximum Rotational Speed	Up to 10,000 RPM
Rated Torque	Rated Torque	500-5,000 N·m

Table 3: Feature Comparison

 

Feature	Helical Gear	Spur Gear	Bevel Gear
Tooth Shape	Spiral teeth	Straight teeth	Tapered teeth
Smoothness	High (low noise)	Medium	Medium to High
Axial Force	Present (needs thrust bearings)	None	Radial force only
Shaft Arrangement	Parallel shafts	Parallel shafts	Intersecting shafts
Applications	High-speed, high-load systems	Low-speed general use	Angular transmission

Table 4: Application-Specific Specifications

Subtable 4-1: Automotive Helical Gear

 

Item	English Description	Requirements
Material	20CrMnTi Alloy Steel	Carburized to HRC 58-62
Precision	AGMA 11	Pitch error ≤ ±5μm
Noise Level	≤ 75 dB @ 3,000 RPM	Compliant with ISO 1996
Fatigue Life	1,000,000 km (bench test certified)	Automotive-grade durability

Subtable 4-2: Precision Robot Gear

 

Item	English Description	Requirements
Material	Stainless Steel 304	Corrosion-resistant
Backlash	≤ 0.05 mm	High-precision motion
Lubrication	Pre-lubricated with high-temperature grease	Maintenance-free design
Certifications	CE, RoHS, ISO 13849 (Safety)	Compliance with EU standards

Table 5: Customization Options

 

Customization Aspect	English Description	Options
Helix Direction	Helix Direction	Right-hand, left-hand, herringbone
Material	Material Selection	40Cr, 18CrNiMo7-6, POM plastic
Surface Treatment	Surface Enhancement	Black oxide, galvanization, laser hardening
Flange Design	Flange Type	Holed flange, non-flanged, stepped shaft
Packaging	Packaging Solution	Anti-oxidation coating + wooden case

Notes for Technical Terms

 

1. Helix Angle (β): The angle between the tooth helix and the gear axis; higher angles improve smoothness but increase axial force.
2. Backlash: The clearance between non-working tooth surfaces; critical for precision applications (e.g., robotics ≤ 0.05mm).
3. AGMA/ISO Grades: AGMA 10-12 (high precision), ISO 6-8 (industrial standard).