Shaft Gear
2. Product Structure: Utilizing an integrated design, the gear and shaft are precisely integrated to ensure optimal coaxiality and transmission accuracy.
3. Size Range: Diameter 100-500mm, Length 100-3000mm
4. Customization is available, with special dimensions and structural designs available upon request.
5. Applications:
Power transmission in crushers, ball mills, and elevators; transmissions in metallurgical equipment such as rolling mills and straightening machines; and gearboxes for wind turbines.
6. Material: Select the material you require.
- Product Description
Shaft Gear – Precision Engineered for Reliable Power Transmission
Product Details
When your drive system demands both strength and precision, our Shaft Gears are the ideal solution. This integrated component combines the Gear and Shaft into a single, robust unit, specifically designed for heavy-duty applications. Unlike traditional separate gear and shaft assemblies, our product offers superior concentricity and transmission accuracy, reducing vibration and extending service life. Suitable for various industries, from mining to renewable energy, each unit undergoes rigorous quality control to ensure reliable operation under demanding conditions. Whether you require standard sizes or custom configurations, our engineering team, with over 20 years of experience in bearings and power transmission components, is ready to meet your specific needs with expert technical knowledge.
Our meticulous engineering design philosophy ensures that every product addresses real-world engineering challenges. The gear section is precision hobbed for consistent tooth profile accuracy; the bearing mounting surfaces are ground to extremely tight tolerances for optimal fit. The bearing locating structure precisely controls axial position, and functional connections can be equipped with keyways, splines, or threaded connections as needed. Every chamfer, undercut, and bevel serves a practical purpose—ensuring manufacturability, ease of assembly, and operational safety.
Why Choose Us?
Reliable Manufacturing Capabilities
Located in Luoyang, the heart of China's bearing industry, we possess advanced CNC vertical machining centers, gear hobbing machines, and machining centers capable of processing components up to 10,000 mm in width. Our production facilities support both standard and non-standard customization, and we can even reverse engineer designs based on your existing components, even without 3D drawings.
Quality System Protecting Your Investment
Every product we manufacture is ISO 9001 certified. Our products comply with international standards including ISO, DIN, and GB standards, and meet RoHS environmental requirements. Precision measuring instruments, vibration analyzers, and material analysis equipment ensure quality at every stage of production.
Engineering Support Throughout the Project
We have a team of over 50 professionals who provide comprehensive interview services, from initial screening to executive coaching. We have supported clients in more than 50 countries, including Germany, the United States, Australia, and throughout the Middle East, accumulating extensive experience in various application scenarios and work environments.
Flexible Association Options
We strengthen our OEM/ODM solutions and maintain inventory of commonly used components to ensure fast delivery. Custom orders also receive meticulous attention to detail, with full traceability from raw material selection to final inspection.
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Technical Specifications
Parameter | Specification |
Diameter Range | Ø100mm – Ø500mm |
Length Range | 100mm – 3000mm |
Module Range | M2 – M20 (custom available) |
Material Options | 45# steel, 40Cr, 42CrMo, 20CrMnTi, Stainless steel (304/316/420) |
Core Hardness | HRC 28-32 (after quenching and tempering) |
Tooth Surface Hardness | HRC 58-62 (after surface hardening) |
Tooth Profile | Spur, helical, or custom geometry |
Precision Grades | ISO Class 6, 7, or 8 |
Surface Finish | Ra 0.8 – Ra 3.2 μm (bearing surfaces) |
Weight Capacity | Up to 2000kg per unit |
Testing & Certification
Each component is dimensionally inspected using precision measuring equipment to ensure compliance with your specifications. Material certification includes alloy composition and process test reports. Our ISO 9001 quality management system documents these verification steps, providing the traceability required by your procurement and design teams.
The effectiveness of heat treatment is confirmed through hardness testing in specified areas. Before components are put into service, we use magnetic particle inspection or ultrasonic testing to identify surface or subsurface defects. We maintain calibration records for all inspection equipment and provide third-party certification when required by your quality plan.

Features and Benefits
Integrated Design Reduces Failure Points
By integrating the gears and shaft into a single component, coupling interfaces that could lead to misalignment or wear are eliminated. This integration improves concentricity and reduces vibration, resulting in quieter operation and extended bearing life.
Material Selection Matches Your Operating Conditions
For medium loads, cost-effective 45 steel is available; for heavy-duty applications, 42CrMo alloy steel is an option; and for applications where wear resistance is critical, 20CrMnTi carburized steel is available. Stainless steel options are available for corrosive environments without compromising mechanical performance.
Heat Treatment Optimizes Performance Areas
The core is quenched and tempered to achieve a balance of strength and toughness. The gear teeth can be selectively hardened to improve wear resistance while maintaining the impact resistance of the shaft body—critical for equipment subjected to variable loads.
Precision Machining Ensures Proper Fit
Precision-machined bearing housings ensure correct clearances with mating components. Precisely cut keyways and splines reliably transmit torque, preventing wear or displacement under load. Controlled runout minimizes dynamic loads on the support bearings.
Applications
Mining and Mineral Processing
Crushers, ball mills, conveyors, and hoists all rely on robust and reliable power transmission systems. Our Shaft Gear assemblies withstand the shock loads and abrasive environments common in these applications, and extended maintenance intervals are achieved through carefully selected materials and heat treatment processes.
Metallurgical Equipment
Rolling mills, straightening machines, and continuous casting systems require precise torque transmission with minimal backlash. Our manufacturing capabilities meet the wide range of sizes and custom gear profiles required for these demanding applications.
Renewable Energy
Wind turbine gearboxes operate under variable loads and require components that can withstand fatigue. Our design team will work with you to determine the appropriate materials and geometry to balance weight, strength, and service life for your specific turbine platform.
Industrial Machinery
CNC machine tools, automated production lines, and robotic systems benefit from the reduced vibration and improved accuracy provided by our integrated designs. Precision grinding of bearing surfaces ensures the tight tolerances required for these applications.
Installation Guide
Before assembly, clean all mating surfaces and verify dimensions. Apply appropriate lubricant to the bearing surfaces according to the equipment manufacturer's instructions. When installing parts with keyways, ensure the key is properly seated and check for any burrs that might prevent full engagement.
During installation, properly support long shafts to prevent bending. Use a dial indicator to confirm alignment before tightening fasteners. All connections should be tightened to the torque values specified by the equipment manufacturer. After initial operation, as part of the commissioning procedure, re-check the alignment and fastener torque.



Exhibition
We attend many famous international exhibitions such as Shanghai International Maritime Exhibition,Mining World Russia, bauma China, CTT Russia, etc


Partners
Your trust, we cherish in heart all times and will reciprocate that trust with unwavering quality.



Packaging & shipping
Your goods are unique, and their journey should be flawless. Therefore, we offer professional and customized packaging services. Our experienced team will evaluate your goods' characteristics, transportation route, and environmental requirements to recommend the most secure solution, such as: wooden crate packaging, sturdy frame packaging, or composite reinforced packaging (wooden crate + iron frame).




Maintenance and Care
Establish grease interims based on your working conditions and stack cycles. Screen working temperature and vibration levels—increases may demonstrate wear or misalignment requiring consideration. Assess adapt teeth occasionally for signs of setting, scoring, or unusual wear patterns.
Maintain appropriate arrangement of associated components to avoid untimely bearing or equip disappointment. If you take note abnormal clamor or vibration, closed down hardware and assess some time recently continuing operation. Our specialized group can help with investigating when you experience unforeseen execution issues.
FAQ
Q: Can you fabricate items to our existing drawings?
A: Yes. We work from your 2D or 3D CAD records. If drawings aren't accessible, we give turn around building administrations from your test components.
Q: What's your commonplace lead time for custom orders?
A: Standard custom arrangements regularly require 4-6 weeks from arrange affirmation. Complex geometries or extraordinary materials may expand this timeline, which we'll affirm amid quotation.
Q: Do you give fabric certifications?
A: All orders incorporate fabric test reports following chemical composition and mechanical properties. Extra certifications are accessible when indicated at arrange placement.
Q: What data do you require for a quotation?
A: Give distance across, length, tooth details (module, number of teeth, weight point), fabric inclination, required hardness, and yearly amount. Drawings are supportive but not required for beginning quotation.
Q: Can you handle crisis substitution orders?
A: Contact Us with your prerequisites. We keep up a few common setups in stock and can prioritize critical orders when generation capacity permits.
Contact Us
Need technical specifications or a quotation? Our engineering team is ready to assist with your shaft gear requirements at mia@hgb-bearing.com.















