SAE 4340 Steel DP 1.5 24T Double Helix Gears Shaft For Heavy Duty Appliation
Features of Double Helix Gears
- Double helical gears are similar to a worm gear but the teeth are on two opposite sides of the gear, which provides a reduction ratio of 1:2.
- Double helical gears have very high load capacity and are suitable for heavy-duty applications.
- Double helical gears have a large number of teeth which helps in the reduction of heat build-up, hence they can last longer.
- Double helical gears provide an increased reduction ratio in comparison to standard worms gears.
- Helical gears can be used with both parallel and non-parallel shafts.
- The tooth profile is more efficient than that of a worm gear.
- Double helical gears have fewer parts in comparison to worms gears.
- Double helical gears produce low noise.
Technical Specifications
Parameter | Specification |
Custom Made | Available |
Gear Profile Type | Cylindrical Gear |
Manufacturing Process | Gear Milling & Gear Teeth Hobbing |
Teeth Grinding | Included |
DP | 1.5 |
Number of Teeth (Z) | 24 |
Pressure Angle (α) | 20° |
Lead Angle | 5° |
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 | |
Production Equipment
Manufacturing Process