AISI 4140 Steel Girth Gear 24.25 Module 212T Gear Wheel for Drying Machines with 230-260 HB Hardness
Price:
$1500/ Piece
MOQ:
1 Piece
Delivery Time:
90 Days
Brand:
YIZGEAR
Product Description
AISI 4140 Steel Girth Gear - 24.25 Module 212T Gear Wheel
This segmented ring gear is engineered specifically for large-diameter components, featuring a split-design approach that simplifies machining, transportation, and installation processes for industrial drying machines and other heavy equipment.
Segmented Design Advantages
The girth gear consists of 2 to 8 segments that are bolted together to form a complete tooth ring. This innovative design reduces single-piece machining complexity and facilitates on-site installation while enabling individual segment replacement for localized damage, resulting in significantly lower maintenance costs.
Key Features
- Segmented casting or forging construction
- Joined via flanges and high-strength bolts
- Locating shoulders ensure precise alignment
- Reduced transport and installation complexity
- Individual segment replacement capability
- Low maintenance costs and extended longevity
Working Principle
Each segment is machined with pre-formed flanges and locating structures. During assembly, locating shoulders ensure coaxiality and continuous pitch between segments, which are secured with high-strength bolts to form a unified structure. The segmented design achieves overall rigidity through bolt preload while maintaining uniform load distribution across all segments.
Industrial Applications
- Large ball mills exceeding 10 meters in diameter
- Extra-long rotary kilns
- Large paper machine cylinders
- Rotating mechanisms of port ship unloaders
- Industrial drying machines and heavy rotating equipment
Technical Specifications
| Parameter | Specification |
|---|---|
| Custom Made | Available |
| Gear Profile Type | Cylindrical Gears |
| Manufacturing Process | Gear Milling/Gear Hobbing |
| Teeth Grinding | Included |
| Module (M) | Custom |
| Number of Teeth (Z) | 215 |
| Pressure Angle (α) | 20° |
| Lead Angle | Custom |
| Accuracy Grade | ISO 8-9 Grade |
| Heat Treatment | Quenching and 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 |
Production Equipment
Production Process
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Henan Yizhi Machinery Co., Ltd
Location
Taihong 19# South SongShan Road, Erqi Distict, Zhengzhou, China.
Contact Person
Kevin