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Brand Name : YIZGEAR
Model Number : DB22082401
Place of Origin : CHINA
MOQ : 1 Piece
Price : $1000/ Piece
Payment Terms : L/C, D/P, T/T, Western Union
Supply Ability : 100 Pieces/Month
Delivery Time : 75 Days
Packaging Details : Plywood Crate
Material : SAE 4340
Gear Profile Type : Double Helical Gear
Heat Treatment : Quenching & Tempering
Hardness : 260-300 HB
Manufacture : Gear Hobbing
Quality Grade : ISO 8-9
Forged Steel SAE 4340 Doubel Helix Gear Wheel-Double Helical Gears
Double helical gear with helical teeth on both the left and right sides.
The double helix shape balances the inherent thrust forces.
Double helical gears are widely used in heavy industry where thrust forces need to be eliminated.
The rotational speed is generally not high for double helical gears.
| Parameter | Specification | 
|---|---|
| Custom Made | Available | 
| Gear Profile Type | Cylindrical Gear | 
| Manufacturing Process | Gear Milling & Gear Teeth Hobbing | 
| Teeth Grinding | Included | 
| Module (M) | Custom | 
| Number of Teeth (Z) | 97 | 
| Pressure Angle (α) | 20° | 
| Lead Angle | 23° | 
| Accuracy Grade | ISO 8-9 Grade | 
| Heat Treatment | Quenching & Tempering | 
| Surface Hardness | 260-300HB | 
| CHINA/GB | ISO | ГΟСТ | ASTM | JIS | DIN | 
|---|---|---|---|---|---|
| 45 | C45E4 | 45 | 1045 | S45C | CK45 | 
| 40Cr | 41Cr4 | 40X | 5140 | SCr440 | 41Cr4 | 
| 20CrMo | 18CrMo4 | 20ХМ | 4118 | SCM22 | 25CrMo4 | 
| 42CrMo | 42CrMo4 | 38XM | 4140 | SCM440 | 42CrMo4 | 
| 20CrMnTi | 18XГT | SMK22 | |||
| 20Cr2Ni4 | 20X2H4A | ||||
| 20CrNiMo | 20CrNiMo2 | 20XHM | 8720 | SNCM220 | 21NiCrMo2 | 
| 40CrNiMoA | 40XH2MA/40XHMA | 4340 | SNCM439 | 40NiCrMo6/36NiCrMo4 | |
| 20CrNi2Mo | 20NiCrMo7 | 20XH2MA | 4320 | SNCM420 | 


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                        OEM ODM High Precision Double Helical Gears ISO 8-9 Grade for Industrial Applications Images |