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Help CenterHeavy-Duty Spline Gear Shaft Coupling With Integral Flange for Mining Machinery
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Hebei Speed Torque Transmission Technology Co., Ltd. is proud to present our Heavy-Duty Spline Gear Shaft Coupling with Integral Flange, specifically engineered for the demanding environment of mining machinery. With over 7 years of experience in power transmission solutions, we combine precision manufacturing with robust design to deliver a coupling that ensures reliable torque transfer, minimal backlash, and extended service life even under extreme loads and harsh conditions. Our factory, spanning 3,000-5,000 square meters, is equipped with advanced CNC machining centers and heat treatment facilities, enabling us to produce couplings that meet the rigorous standards of the global mining industry.
Key Features & Technical Specifications
This coupling is designed to connect rotating shafts while accommodating misalignment and shock loads commonly encountered in mining conveyors, crushers, mills, and excavators. The integral flange provides a rigid, compact connection that simplifies installation and reduces the number of components.
Integral Flange Design: Eliminates the need for separate flange adapters, reducing part count and potential failure points.
High-Strength Spline Profile: Precision ground splines ensure accurate torque transmission with minimal backlash, improving overall system efficiency.
Heavy-Duty Construction: Manufactured from high-grade alloy steel, carburized and hardened for wear resistance and fatigue strength.
Customizable Dimensions: Available in a wide range of bore sizes, spline lengths, and flange diameters to fit specific mining machinery applications.
Enhanced Lubrication Channels: Internal grooves and seals allow for easy grease retention, reducing maintenance intervals.
Corrosion Protection: Standard surface treatment options include phosphating, painting, or galvanization to withstand moisture and dust.
| Parameter | Specification |
|---|---|
| Rated Torque | 2,000 – 500,000 Nm (customizable) |
| Maximum Speed | Up to 3,000 RPM (depending on size) |
| Misalignment Capacity | Angular: ±1.5°, Parallel: 0.5 mm, Axial: ±2 mm |
| Material | 20CrMnTi, 40Cr, 42CrMo (or as per customer request) |
| Hardness | Surface HRC 58-62, core HRC 30-40 |
| Weight | 5 – 500 kg (depending on size) |
| Standards | ISO 9001:2015, DIN 5480, ANSI B92.1 (optional) |
Advantages for Mining Applications
The coupling’s integral flange design significantly reduces the overall length of the drive train, which is critical in confined spaces such as underground mining equipment. The spline engagement provides a self-centering effect, minimizing vibration and noise. Additionally, the hardened spline teeth resist wear from frequent start-stop cycles and reversing loads, common in mining conveyors and feeders.
Our couplings are also designed for easy maintenance. The integral flange allows quick access to bolts and fasteners, reducing downtime during replacement. Each unit undergoes rigorous testing, including torque verification and dimensional inspection, to ensure consistent quality.
Trust & Reliability from Hebei Speed Torque
Since 2017, Hebei Speed Torque Transmission Technology Co., Ltd. has been dedicated to manufacturing high-quality power transmission components. Our ISO 9001:2015 certified facility employs 101-200 skilled workers and operates advanced production lines. With an annual export value of US$5-10 million, we serve customers across North America, South America, Europe, Southeast Asia, Africa, and Oceania. Our products are shipped from the ports of Shanghai, Tianjin, and Qingdao, ensuring efficient logistics worldwide.
We understand that mining machinery demands the highest reliability. That’s why every coupling is backed by our comprehensive quality control system, from raw material inspection to final assembly. We offer customization services to meet your exact shaft dimensions, spline specifications, and surface treatment requirements. Contact us today to discuss your project and experience the durability and performance of our heavy-duty spline gear shaft couplings.
Frequently Asked Questions
Q: What materials are used for the spline gear shaft coupling?
A: We typically use high-strength alloy steels such as 20CrMnTi, 40Cr, or 42CrMo, with carburizing and hardening to achieve surface hardness of HRC 58-62. Other materials can be supplied upon request.Q: Can I get a custom flange size or spline profile?
A: Yes, we offer full customization. Please provide your shaft dimensions, spline standard (e.g., DIN 5480, ANSI B92.1), and flange bolt pattern, and we will design accordingly.Q: What is the typical lead time for production?
A: For standard sizes, lead time is 15-25 working days. Custom orders may require 30-45 working days, depending on complexity.Q: Does the coupling require special lubrication?
A: The coupling is designed for grease lubrication. We recommend using high-temperature lithium-based grease. Internal lubrication channels are pre-drilled for easy maintenance.Q: How does the integral flange improve installation?
A: The flange is machined as one piece with the coupling hub, eliminating alignment issues between separate components. It reduces the number of fasteners and simplifies assembly in tight spaces.Q: What is the maximum misalignment the coupling can handle?
A: The coupling can accommodate angular misalignment up to ±1.5°, parallel misalignment up to 0.5 mm, and axial displacement up to ±2 mm. For larger misalignments, please consult our engineering team.Q: Is the coupling suitable for high-temperature environments?
A: The standard version operates from -20°C to +120°C. For higher temperatures, we can apply special heat-resistant materials and seals. Please specify your requirements.Q: Do you provide test certificates or quality reports?
A: Yes, we provide material test certificates, dimensional inspection reports, and torque test results upon request. Our ISO 9001:2015 quality system ensures full traceability.
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