Spur Gear
2. Product Structure: Utilizes a precisely calculated involute tooth profile.
3. Size Range: Diameters from 200mm to 5000mm.
4. Customization Available: Whether you have specific size, tooth profile, or structure requirements, our engineering team can provide you with professional custom solutions.
5. Materials: 45#, 55#, 40Cr, 42CrMo, etc. Custom materials are available upon request.
6. Applications:
Reducers, transmissions, gearboxes, and construction machinery transmission systems.
- Product Description
Spur Gear – Precision Engineered for Reliable Power Transmission
Product Details
When you need dependable power transmission for your machinery, choosing the right Gear makes all the difference. Our Spur Gear products are designed with precision involute tooth profiles that run parallel to the axis, ensuring smooth and efficient torque transfer in your applications. As the most widely used gear type in industrial systems, the products offer straightforward installation, cost-effective maintenance, and reliable performance across various operating conditions. Each product we manufacture undergoes rigorous quality control to meet your exact specifications.
We supply spur gears with diameters ranging from 200 mm to 5,000 mm, suitable for speed reducers, gearboxes, and heavy construction equipment. Our engineering team selects from premium materials such as 45#, 55#, 40Cr, and 42CrMo steel, based on your specific load requirements and operating conditions to ensure optimal performance and longevity.
Why Choose Us?
Over Two Decades of Manufacturing Expertise
Strategically located in Luoyang — China’s hub for bearing and gear manufacturing — we bring over 20 years of specialized engineering experience to every project. Our dedicated team of 50+ engineers specializes in precision machining and custom gear solutions.
Advanced Manufacturing Capabilities
Our facility operates CNC vertical lathes, gear hobbing machines, machining centers, and precision grinding equipment. This integrated setup enables us to handle complex geometries and maintain tight tolerances consistently across all production runs.
ISO 9001 Certified Quality Assurance
Every gear undergoes documented quality inspections at multiple checkpoints. We ensure full traceability from raw material selection to final inspection, giving you complete confidence in product consistency and reliability.
Comprehensive Customization Services
Whether you require modified tooth profiles, specialized heat treatments, or non-standard dimensions, our engineering team can develop tailor-made solutions to meet your specifications. We also provide reverse engineering services to accurately replicate existing components.
Proven Global Export Experience
Our products currently serve clients in over 50 countries, including the United States, Germany, Australia, and throughout the Middle East. This extensive global experience helps us understand diverse international technical standards and documentation requirements.



Certification

Technical Specifications
Parameter | Specification |
Diameter Range | 200mm – 5000mm |
Module Range | M1 – M40 |
Tooth Profile | Involute, ISO/DIN standard |
Material Options | 45#, 55#, 40Cr, 42CrMo, 20CrMnTi, Stainless Steel (304/420) |
Heat Treatment | Quenching, Tempering, Carburizing (HRC 28-32 core, HRC 58-62 surface) |
Precision Grade | DIN 5-8, ISO 1328 Class 5-8 |
Surface Finish | Ra 1.6 – 6.3μm |
Tooth Hardness | HRC 58-62 (surface hardened), HRC 28-32 (through hardened) |
Customization | Available for non-standard dimensions and special requirements |
Features and Benefits
Parallel Tooth Design
The teeth run parallel to the Spur Gear axis, which simplifies manufacturing and reduces production costs. This design also makes installation more straightforward in your assembly line.
High Load Capacity
When manufactured from 40Cr or 42CrMo alloy steel and subjected to proper heat treatment, these gears can withstand substantial radial and tangential loads without deformation. This robustness translates to longer service life and reduced downtime in demanding applications.
Precision Involute Profile
Tooth profiles are machined using CNC gear hobbing and shaping equipment. This ensures accurate tooth geometry and lead, which promotes smooth meshing, uniform load distribution, and minimal noise and vibration during operation.
Multiple Material Options
Choose from carbon steel for cost-effective general use, alloy steel for higher strength and durability, or stainless steel for applications requiring resistance to corrosion and chemicals.
Surface Hardening Options
Carburizing or induction hardening treatments increase surface hardness to HRC 58-62, while retaining a tough, ductile core (approx. HRC 28-32). This dual-property structure delivers superior wear resistance on the tooth flanks and excellent impact strength to withstand shock loads.
Applications
Industrial Gearboxes
Spur gears are essential components in industrial speed reducers, where they convert high-speed motor input into high-torque output to drive conveyors, mixers, blenders, and various processing machinery.
Construction Machinery
These gears are critical in excavators, loaders, and cranes, providing the robust and reliable power transmission needed to handle constantly changing and shock loads in heavy-duty operation.
Automotive Transmissions
Used in manual transmissions and transfer cases, where precise gear meshing and tooth profile accuracy are paramount for smooth, reliable gear shifting and power distribution.
Manufacturing Equipment
A key part of CNC machine tools, presses, and automated production lines, providing the accurate indexing, positioning, and motion control necessary for repeatable manufacturing processes.
Agricultural Machinery
Essential for power transmission in tractors, combine harvesters, and irrigation systems, built to endure the dust, debris, and exposure typical of agricultural operations.
Installation Guide
Pre-Installation Inspection
Inspect the gear teeth for any shipping damage.
Ensure all mounting surfaces are clean, flat, and free of burrs or nicks.
Shaft Alignment
Verify that the mating shaft meets the specified alignment tolerances (e.g., parallelism, runout).
Misalignment causes uneven load distribution across the tooth face, leading to premature wear and failure.
Proper Mounting
Use the specified mounting method (e.g., interference fits, keyways) as per your engineering drawings.
Avoid applying excessive force during installation, which could distort or damage the gear body.
Backlash Adjustment
Set the correct center distance to achieve the recommended gear backlash.
Proper backlash prevents binding under thermal expansion while minimizing noise and vibration.
Lubrication Application
Apply the specified type and amount of grease before initial operation.
Always follow your gearbox or equipment manufacturer’s recommendations for lubricant selection and replenishment intervals.




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
Regular Lubrication
Maintain proper lubricant levels and follow the recommended grease change intervals. Contaminated grease accelerates wear dramatically.
Periodic Inspection
Check for abnormal noise, vibration, or excessive temperature rise during operation. These are often early warning signs of developing problems, allowing for intervention before failure occurs.
Tooth Surface Monitoring
Inspect gear teeth periodically for signs of brinelling, scoring, pitting, or abnormal wear patterns. Early detection allows you to correct potential alignment or lubrication problems.
Cleaning Procedures
Remove all debris and old grease during maintenance. Use appropriate cleaning solvents that will not damage seals or protective coatings.
FAQ
Q: What breadth run can you manufacture?
A: We deliver the items from 200mm to 5000mm in breadth utilizing our CNC equipment.
Q: Can you give custom tooth profiles?
A: Yes, our building group can plan adjusted profiles based on your particular stack and speed requirements.
Q: What fabric ought to I select for heavy-duty applications?
A: For tall loads, we suggest 42CrMo combination steel with carburizing treatment, giving surface hardness of HRC 58-62.
Q: Do you offer test generation some time recently full orders?
A: We can fabricate model tests based on your drawings to confirm fit and work some time recently bulk production.
Q: What documentation do you give with shipments?
A: Each arrange incorporates fabric certificates, dimensional review reports, and warm treatment records for traceability.
Q: How long does custom adapt generation regularly take?
A: Lead time depends on complexity and amount, but commonplace custom orders require 4-6 weeks from drawing endorsement to shipment.
Contact Us
Need technical support or a quotation for your Spur Gear requirements? Our engineering team is ready to assist with your project. Reach us at mia@hgb-bearing.com for prompt response.












