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Brand Name : | YIZGEAR |
Payment Terms : | L/C, T/T |
Supply Ability : | 500 Sets/Month |
Delivery Time : | 60 Days |
1)Descriptions of Double helical gears
Double helical gears are composed of two sets of symmetrical gear
teeth with opposite helix angles (such as left-handed and
right-handed), forming a V-shaped tooth profile structure, which is
equivalent to the combination of two mirror-image helical gears.
2)Features of Double helical gears
The axial thrust generated by the two rows of helical teeth cancels
each other out, thus the bearings inside the gearbox are not
affected by the net axial load.
3)Advantages of Double helical gears
a)Automatic balancing of axial force: The reverse helical angle
enables self-balancing of axial force, eliminating the need to rely
on bearings for counteraction.
b)Extremely low bearing load: The bearings are hardly subjected to
axial force, resulting in longer service life and simpler
structural design.
c)High load-bearing capacity: The double-tooth meshing ensures a
more even distribution of load, enabling the transmission of
greater torque and power.
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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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Henan Yizhi Machinery Co., Ltd |
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