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Brand Name : YIZGEAR
Model Number : DB220804005
Place of Origin : CHINA
MOQ : 1 Piece
Price : $700/ Piece
Payment Terms : L/C, D/P, T/T, Western Union
Supply Ability : 100 Pieces/Month
Delivery Time : 75 Days
Packaging Details : Plywood Crate
Profile Type : Double Helical Gear
Width : 80mm
Manufacturing Process : Gear Hobbing
Tooth Number : 35T
Quality Grade : ISO 8-9
Keyway : 120mm
1) Description of double helical gear
Double helical gear consists of two identical gears jointed on same axis, and having teeth in opposite directions
(one has left hand helix and other one has right hand helix).
2) Features of Double helical gear
a) Resultant thrust force developed in double helical gear is zero.
b) Double helical gear can transmit larger power.
c) High helix angle can be advantageously used in double helical gear
d) Double helical gear can provide higher efficiency.
Products | Double Helical Gear |
Custom Made | √ |
Gear Profile Type | Cylindrical Gear |
Gear Teeth manufacturing | Gear Hobbing |
Gear Teeth Grinding | √ |
Module (M) | Custom Made |
Number of Teeth (Z) | 35 |
Pressure Angle (α) | 20° |
Helix Angle (β) | 22° |
Teeth Accuracy Grade | ISO 8-9 Grade |
Heat Treatment | Quenching & Tempering |
Surface Hardness | 260-300HB |
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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Casting Steel ZG 42CrMo Double Helical Gears Wheel 35T Gear Hobbing Images |