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DIN 18CrNiMo7 Steel 4 Module 77T Double Helical Gears For Gearbox

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DIN 18CrNiMo7 Steel 4 Module 77T Double Helical Gears For Gearbox

Name: DIN 18CrNiMo7 Steel 4 Module 77T Double Helical Gears For Gearbox
Brand: YIZGEAR
Price: 600 USD

China DIN 18CrNiMo7 Steel 4 Module 77T Double Helical Gears For Gearbox wholesale

Brand Name : YIZGEAR

Model Number : DB22082203

Place of Origin : CHINA

MOQ : 1 Piece

Price : $600/ 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 : DIN 18CrNiMo7

Helix angle : 31°

Hardness : 58-62 HRC

Normal Module : 4

Transverse Module : 4.6667

Face Width : 50

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DIN 18CrNiMo7 Steel 4 Module 77T Double Helical Gears For Gearbox

1) Description of Double Helix Gears

A double helical gear consists of two helix angles with opposite hands. Inside the gears, the axial thrusts oppose each other

and the resulting forces are not transmitted to the bearings on the shaft. This gearpair setup means they can handle high loads

and allow for a solid transmission while running.

2) Features of Double Helix Gears

Double helical gears have all of the advantages of helical gears, which are strong and quiet, plus have the advantage of being able to

cancel the thrust forces by combining helical gears with both right and left hand twists.

Products	Double Helical Gear
Custom Made	√
Gear Profile Type	Cylindrical Gear
Gear Teeth manufacturing	Gear Milling
Gear Teeth Grinding	√
Module (M)	Custom Made
Number of Teeth (Z)	53
Pressure Angle (α)	20°
Helix Angle (β)	31°
Teeth Accuracy Grade	ISO 7 Grade
Heat Treatment	Carburizing
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

DIN 18CrNiMo7 Steel 4 Module 77T Double Helical Gears For Gearbox

Production Process

DIN 18CrNiMo7 Steel 4 Module 77T Double Helical Gears For Gearbox

Cutting Milling

DIN 18CrNiMo7 Steel 4 Module 77T Double Helical Gears For Gearbox

Heat Treatment Grinding Inspection

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