Pinion Shaft
2. Product Structure: The gear and shaft are integrally constructed.
3. Dimension Range: Shaft Diameter: φ50mm-φ500mm; Overall Length: 300mm-3000mm.
4. Customization Available: Whether you have specific dimensions, tooth profiles, or structural requirements, our engineering team can provide you with professional custom solutions.
5. Materials: 20CrMnTi, 42CrMo, 40Cr, etc. Custom materials are available upon request.
6. Applications:
Rolling mills, mining machinery, lifting equipment, speed reducers, transmissions, gearboxes, wind turbines, and hydroelectric generators.
- Product Description
Pinion Shaft – Precision Power Transmission Components
Product Details
When you need reliable power transmission in demanding industrial applications, our Pinion Shaft delivers proven performance. This critical component combines a driving Gear and shaft in a single, integrated assembly. The design ensures precise meshing with mating gears to efficiently transmit rotational power throughout your mechanical system. Whether you operate rolling mills, reducers, or hydroelectric generators, our products provide the durability and accuracy your equipment requires.
Our product features a monolithic construction. The gear and shaft are machined from a single forging, eliminating the weak points typically found in assembled components. This integral design maximizes mechanical strength and maintains superior concentricity during operation.
We manufacture shafts ranging from φ50mm to φ800mm in diameter, with overall lengths from 300mm to 6000mm. Module sizes span M3 to M20, supporting both standard and heavy-duty applications. Each unit undergoes precision grinding on bearing seats and gear teeth to ensure smooth rotation and extended service life.
Why Choose Us?
Over 20 Years of Manufacturing Experience
Based in Luoyang, China's bearing industry center, our engineering team brings decades of practical knowledge in exactness machining and warm treatment processes.
Custom Designing Capabilities
We do not fair fabricate standard components. Our group can reverse-engineer existing parts from tests, plan custom tooth profiles, and adjust measurements to coordinate your correct specifications—even without 3D drawings.
ISO 9001 Certified Production
Every item passes through strict quality control checkpoints. We utilize arrange measuring machines, ultrasonic imperfection location, and hardness testing to confirm compliance with Commotion and ISO standards.
Global Supply Network
We right now serve clients in over 50 nations over North America, Europe, Southeast Asia, and the Center East. Our coordinations accomplices guarantee opportune conveyance of both model amounts and bulk orders.
Technical Back All through Extend Lifecycle
From beginning plan discussion to establishment direction and after-sales benefit, our engineers give responsive back in your dialect and time zone.
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Certification

Technical Specifications
Parameter | Specification | |
Shaft Diameter | φ50mm – φ500mm | |
Overall Length | 300mm – 3000mm | |
Gear Module | M3 – M20 | |
Unit Weight | 5kg – 500kg | |
Base Material | 20CrMnTi, 42CrMo, 40Cr, or per customer specification | |
Gear Tooth Surface Hardness | HRC 58-62 (after carburizing) | |
Core Hardness | HRC 28-32 (after quenching and tempering) | |
Tooth Accuracy Grade | GB 5-6 / ISO 1328 Class 6-7 | |
Tooth Profile Options | Spur, helical, bevel | |
Connection Type | Keyway, spline, flange, or custom interface | |
Customization | Full non-standard design support |
Features and Benefits
Integral Gear-Shaft Construction
By machining the adapt and shaft from one fashioning, you kill the hazard of extricating or misalignment. This plan diminishes vibration and expands bearing life in your gearbox.
Optimized Stress Distribution
Filleted moves at shaft shoulders minimize push concentration. This building detail avoids weariness splits beneath cyclic stacking, especially vital in turning around drives.
Precision Ground Bearing Seats
High-accuracy pounding guarantees appropriate fit with rolling component heading. You'll involvement decreased runout, lower commotion levels, and progressed control transmission efficiency.
Carburized Equip Teeth
Surface carburizing makes a wear-resistant case whereas keeping up a extreme center. This dual-hardness structure withstands both contact stretch and twisting loads in high-torque applications.
Flexible Mounting Options
We can give keyways, splines, or flanged closes to coordinate your existing hardware. This adaptability rearranges retrofits and diminishes machine downtime amid establishment.
Applications
Our pinion shafts serve critical functions across multiple industries:
· Rolling Mills: Drive stands and intermediate gearboxes in steel production lines
· Mining Equipment: Crushers, conveyors, and hoisting machinery exposed to shock loads
· Industrial Gearboxes: Speed reducers in cement plants, paper mills, and material handling systems
· Wind Turbines: Pitch and yaw drive mechanisms requiring long-term reliability
· Hydroelectric Generators: Water turbine transmission systems with continuous duty cycles
· Marine Propulsion: Ship reduction gears operating in corrosive environments (when specified with appropriate materials)
Testing & Certification
We maintain ISO 9001:2015 certification and comply with RoHS directives. Each production batch undergoes:
· Raw material chemical composition analysis
· Ultrasonic flaw detection on forgings
· Full inspection of tooth geometry using CMM equipment
· Surface and core hardness gradient verification
· Magnetic particle inspection on critical areas
Test reports are available upon request to support your quality documentation requirements.
Installation Guide
1. Verify Dimensions: Confirm shaft diameter, keyway dimensions, and bearing seat tolerances before assembly.
2. Clean Mating Surfaces: Remove protective coating and any debris from bearing bores and gear mesh areas.
3. Check Alignment: Use dial indicators to verify shaft runout remains within 0.02mm during rotation.
4. Install Bearings: Heat bearings to 80-100°C for thermal expansion, then mount using appropriate tools. Avoid hammering directly on races.
5. Set Gear Mesh: Adjust center distance and backlash according to your gearbox design specifications. Typical backlash ranges from 0.2mm to 0.5mm depending on module size.
6. Lubricate Properly: Apply recommended gear oil or grease before initial operation.




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
Lubrication Schedule
Change gear oil every 2000-3000 operating hours or per your equipment manual. Use viscosity grades matched to operating temperature and load conditions.
Periodic Inspection
Every 6 months, check for:
· Abnormal noise or vibration patterns
· Excessive gear tooth wear (scuffing, pitting, or spalling)
· Bearing temperature rise beyond normal range
· Oil contamination or metal particles in lubricant
Capacity Recommendations
If putting away save shafts, apply rust preventive coating and store in a dry environment underneath 60% relative humidity.
Customer Reviews
"The custom helical item for our coal process reducer has been running perfectly for 18 months. The engineering team accommodated our non-standard bore requirements without delays."
— Obtainment Chief, European Cement Producer
"We required reverse-engineered substitutions for out of date transmission components. The dimensional exactness coordinated our unique parts perfectly."
— Upkeep Administrator, South African Mining Operation
FAQ
Q: Can you make items exterior the recorded breadth range?
A: Yes. Whereas our standard extend covers φ50-500mm, we have machined custom units up to φ800mm. Contact Us with your details for possibility review.
Q: What lead time ought to I anticipate for custom designs?
A: Standard alterations ordinarily require 4-6 weeks from drawing endorsement. Complex plans with uncommon materials may expand to 8-10 weeks.
Q: Do you give fabric certifications?
A: Yes. We supply process test certificates for all amalgam steels, counting chemical composition and mechanical property test results.
Q: How do I decide the redress module estimate for my application?
A: Our engineers can help with equip plan calculations based on your torque, speed, and benefit figure prerequisites. Give your working parameters for a recommendation.
Q: What installment and shipping terms do you offer for worldwide orders?
A: We acknowledge T/T, L/C, and other terms debatable for built up clients. Shipping through ocean cargo, discuss cargo, or messenger depending on direness and amount.
Contact Us
Ready to discuss your Pinion Shaft transmission requirements? Our engineering team is available to assist with technical specifications and custom solutions: mia@hgb-bearing.com







