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Brand Name : YIZGEAR
Model Number : YZTG2207001
Place of Origin : CHINA
MOQ : 5 Pieces
Price : $150/Piece
Payment Terms : L/C, T/T, Western Union
Supply Ability : 2000 Pieces/Month
Delivery Time : 55 Days
Packaging Details : Plywood Crate
name : Transmission Gears
Tip Diameter : 530mm
Gear Profile Type : Cylindrical Gears
Manufacturing Process : Gear Teeth Grinding
Quality Grade : ISO 6 Grade
Module : 8
1) Characteristics of Helical Gear
The helical gear teeth are twisted oblique to the gear axis.
The direction of helix arae left hand or right hand for helical gear.
Right-hand and left hand helical gears mate as a set and the helix angle must be same for one set.
2) Features of Helical Gear
a) Higher strength than a spur gear
b) More effective in reducting noise and vibration
c) Ger in mesh produce thrust forces in the axial direction
| Products | Helical Gears | 
| Custom Made | √ | 
| Gear Profile Type | Cylindrical Gears | 
| Gear Teeth manufacturing | Gear Hobbing | 
| Gear Teeth Grinding | √ | 
| Module (M) | Custom | 
| Number of Teeth (Z) | Custom | 
| Pressure Angle (α) | 20° | 
| Helix Angle (β) | 15° | 
| Teeth Accuracy Grade | ISO 6 Grade | 
| Heat Treatment | Carburizing | 
| Surface Hardness | 58-62 HRC | 
| STEEL CODE GRADES COMPARISON | |||||
| 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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