| Place of Origin: | CHINA |
|---|---|
| Brand Name: | YIZGEAR |
| Model Number: | GG22081002 |
| Minimum Order Quantity: | 1 Piece |
| Price: | $1500/ Piece |
| Packaging Details: | Wooden Crate/Pallte |
| Delivery Time: | 90 Days |
| Payment Terms: | L/C, D/P, T/T, Western Union |
| Supply Ability: | 20 Pieces/Month |
| Material: | Casting Steel | Module: | 28 |
|---|---|---|---|
| Face Width: | 200mm | Production Time: | 90 Days |
| Outer Diameter: | 4800mm | Pitch: | 87.964mm |
| Highlight: | 28 Module Casting Steel Industrial Gears,Rotary Dryer cement mill girth gear,Rotary Dryer Industrial Gears |
||
28 Module Casting Steel Girth Gears For Horizontal Mills of Cement Industry
1) Description of Girth Gear
Traditional girth gears generally consist of two to four segments and are assembled together for processing.
This requires extremely large and expensive machines for production, handling and heat treatment.
Besides this, the size of component parts creates disadvantages with regard to casting quality and heat treatment.
2) Technical Data of Girth Gear
Girth gear pitch diameter of up to 8 m (larger diameters are available after further discussion)
Maximum width 450 mm
Maximum pitch line velocity 6 m/s
Girth gear module 20, 25, 30
Calculated according to ISO standard 6336 (AGMA on request)
| Products | Girth Gears |
| Custom Made | √ |
| Gear Profile Type | Cylindrical Gears |
| Manufacturing | Gear Milling/Gear Hobbing |
| Teeth Grinding | √ |
| Module (M) | 22 |
| Number of Teeth (Z) | Custom |
| Pressure Angle (α) | 20° |
| Lead Angle | Custom |
| Teeth Accuracy Grade | ISO 8-9 Grade |
| Heat Treatment | Quenching & Tempering |
| Surface Hardness | 230-260 HB |
| 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 | |