Cast Steel Half Gear Ring/Half Circular Girth Gear with Precision Machined Tooth Profile for Ball Mill/Rotary Kiln/Industrial Heav - Duty Drivetrain Application

• Customization: Available
• Hardness: Hardened Tooth Surface
• Gear Position: External Gear
• Model NO.: half girth gear
• Manufacturing Method: Cast Gear
• Toothed Portion Shape: Bevel Wheel
• Material: Cast Steel
• Type: Bevel Gear
• Transport Package: Wooden Box Packaging
• Specification: customizable
• Trademark: Tenfaye
• Origin: Xin Xiang, Henan
• Production Capacity: 80000 Tons/Year

Product Description

Cast Steel Half Girth Gear for Ball Mills & Rotary Kilns

Product name: half girth gear
Applicable equipment: rotary kiln, ball mill, mill
Main materials: ZG45CrMo,ZG42CrMo, etc.
Testing grade: American/European standard: partial UT/MT level 1, other level 2; National standard level 2, etc
Processing grade: AGMA8-9, Gear hobbing roughness 6.3/3.2; and grinding can achieve below 3.

Specification

Product Overview & Applications
Our cast steel half gear rings are designed for heavy-duty industrial machinery, providing reliable power transmission solutions:

Key Applications:
Primary Role: Component for ball mills, rotary kilns, crushers, and industrial gearboxes
Primary Features: Durable cast steel semi-circular gear ring with integrated mounting hub / flange / keyway
Design Advantage: Optimized contact pattern for reduced wear and noise under high torque
Material Strength: Resistant to impact, abrasion, and fatigue in

continuous operations

Target Industries: Cement plants, mining operations, power generation, and metallurgical facilities requiring cost-effective drivetrain upgrades.

right elevation

left elevation

front elevation

Technical Specifications

(Custom configurations available upon request.)

Parameter	Standard Range	Custom Options
Outer Diameter	Φ1500mm – Φ6000mm59" – 236"	Up to Φ10000mm394"
Module	8 – 25	Fine-pitch designs available
Pressure Angle	20°Standard / **14.5°**	Custom angle per request
Teeth Count	20 – 120+	Adjustable for partial segments
Material Standards	GB/T 11352, ASTM A572 Gr.50	Custom grades (e.g., 42CrMo)
Manufacturing Method	Resin Sand Casting (CT8-CT10) + Optional heat treatment

After Sales Service

Standard Warranty: 12 months or 2,000 operating hours (whichever comes first).
Extended Warranty: Optional coverage up to 36 months.
Global Support: 24/7 technical assistance and spare parts supply.
Training: On-site or remote operation/maintenance training.

Company Profile

Huxian City Tengfei Machinery Manufacturing Co., Ltd.

As a national high-tech enterprise, Tenfaye specialize in the research, manufacturing, and servicing of castings made from carbon steel, manganese steel, low-alloy steel, and stainless steel.
Our expertise lies in producing castings that weigh below 150 tons.
Tenfaye ,founded in 2006, is located in Xinxiang City, Henan Province, which is a well-known national casting hub. The company consists of three wholly-owned subsidiaries: Huixian Tengfei Machinery Manufacturing Co. Ltd, Henan Tengfei Heavy Technology Co. Ltd, and Henan Tengfei Steel Casting Co. Ltd.

Why Choose Us?

Other Products

OEM/ODM capabilities
Competitive pricing & bulk discounts
Fast shipping & customs clearance support
Turnkey project solutions

Girth gear
Kiln tyre
End cover
Bearing seat
Roller shell

FAQ

Q: Does the production of Hinge Base provide customized services?
A: Yes, Tenfaye can customize according to the customer's drawings and technical requirements.
 
Q: Can it be tempered?
A: Yes, Tenfaye can temper according to the customer's requirements for hardness.
 
Q: When is the delivery time of the product?
A: Different products have different production cycles. After the customer pays, the factory will immediately start 24-hour production. 2-3 groups of workers work in shifts and rest to deliver the product as soon as possible.
 
Q: What is your minimum order quantity?
A: Tenfaye's minimum order quantity is 1 ton, and steel castings below 150 tons can be produced.
 
Q: Do you provide quality control and inspection documents?
A: Yes, we have strict quality control standards. And customers can come to the factory to check and inspect.