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Home > Industrial Equipment & Components > Shaft > Metal Shaft > High-Torque Gearbox Input/Output Shafts, Induction Hardened to 55 HRC

High-Torque Gearbox Input/Output Shafts, Induction Hardened to 55 HRC

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Product Spotlights

High-torque gearbox shafts feature induction-hardened surfaces (55 HRC) for extreme wear resistance, paired with a tough core for impact absorption. Precision-machined from high-strength alloy steel for perfect fit and alignment, they are fully customizable to your specifications. These shafts reduce maintenance costs, increase machine uptime, and enhance safety in demanding industrial applications like mining, construction, and marine equipment.

Negotiable MOQ: 1 Piece (Price negotiable depending on order volume and customization)

Key Specifications

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Application:

Other, High-torque gearboxes for industrial machinery

Surface Finish:

Other, Optional grinding or polishing available

Material:

High-strength alloy steel

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Henan San Kuang Machinery Technology Co., Ltd.

1Yr

Payment & Shipping

Payment Methods:

Port of Shipment:

China

Delivery Detail:

Delivery time depends on order quantity.

Product Details
Company Profile
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Application Other, High-torque gearboxes for industrial machinery

Surface Finish Other, Optional grinding or polishing available

Material High-strength alloy steel

Hardness (Surface) 55 HRC (Induction hardened)

Processing Precision machining, heat treatment

Core Hardness Tough core for impact resistance

Standard Customizable to client drawings and specifications

Type Input shafts and output shafts

Keyway Precision machined keyways standard

Dimensional Tolerance High precision per ISO standards

As a leading manufacturer with over a decade of expertise, Henan San Kuang Machinery Technology Co., Ltd. specializes in producing critical power transmission components. Our High-Torque Gearbox Input/Output Shafts are engineered to deliver exceptional performance and longevity in the most demanding industrial environments. Induction hardened to a surface hardness of 55 HRC, these shafts are built to withstand extreme torsional stresses, resist wear, and significantly reduce downtime, offering you a reliable solution for enhancing your machinery's durability and efficiency.

These shafts are the backbone of robust power transmission systems. We understand that a gearbox is only as strong as its weakest component. That's why we focus on every detail:

Superior Material & Heat Treatment: Manufactured from high-grade alloy steel, each shaft undergoes a precise induction hardening process. This creates a hard, wear-resistant surface (55 HRC) while maintaining a tough, ductile core to absorb shock loads and prevent catastrophic failure.
Precision Engineering: Every shaft is machined to exacting tolerances, ensuring perfect fit and alignment within your gearbox assembly. Precision-ground keyways and bearing journals guarantee smooth operation and eliminate premature bearing wear.
Customization & Flexibility: We don't believe in a one-size-fits-all approach. Our shafts can be fully customized based on your technical drawings and specifications, including dimensions, spline profiles, keyway details, and special surface treatments.

Key Technical Specifications & Advantages:

Feature	Specification / Benefit
Core Hardness	Lower than surface, providing excellent toughness and impact resistance.
Dimensional Accuracy	High precision machining ensures minimal runout and perfect gear meshing.
Wear Resistance	The 55 HRC hardened surface drastically extends service life under high-load, high-cycle conditions.
Application Range	Ideal for heavy-duty gearboxes in mining, construction, marine, wind power, and material handling equipment.
Quality Assurance	Production follows stringent quality control protocols supported by our comprehensive management system certifications.

Choosing our shafts translates into direct benefits for your operation:

Reduced Maintenance Costs: Exceptional wear resistance means fewer replacements and less frequent overhauls.
Increased Machine Uptime: Reliable components prevent unexpected breakdowns, keeping your production lines running.
Improved Power Transmission Efficiency: Precision machining reduces energy losses due to friction and misalignment.
Enhanced Safety: A robust shaft minimizes the risk of sudden failure, protecting both personnel and machinery.

Backed by our established facility spanning 10,000-30,000 square meters and a dedicated team of 51-100 professionals, we have consistently delivered high-quality components to a global clientele across North America, Europe, Asia, and beyond. Our annual export value of US$2.5-5 Million is a testament to the trust placed in us by international partners. Operating from a strategic location in Luoyang, a major industrial hub in China, we ensure efficient logistics through major ports like Shanghai, Qingdao, and Tianjin. Our commitment to quality is underpinned by a robust system adhering to recognized standards, ensuring every High-Torque Gearbox Shaft meets rigorous performance criteria. Partner with us to secure a critical component that combines advanced metallurgy, precision manufacturing, and proven reliability, empowering your machinery to perform at its peak.

Frequently Asked Questions (FAQ):

Q: What is the significance of "55 HRC" hardness?
A: HRC (Rockwell Hardness Scale C) is a measure of material hardness. A value of 55 HRC indicates an extremely hard surface, highly resistant to abrasion, gouging, and deformation under heavy loads, which is critical for gearbox shafts.
Q: Can you supply shafts according to our specific drawings?
A: Absolutely. We specialize in custom manufacturing. Providing us with your detailed drawings or specifications allows us to produce shafts that match your exact requirements for dimensions, tolerances, keyways, and other features.
Q: What materials are typically used for these shafts?
A: We primarily use high-strength alloy steels such as 4140, 4340, or 42CrMo, which offer an excellent balance of strength, hardenability, and toughness necessary for high-torque applications.
Q: How does induction hardening differ from through-hardening?
A: Induction hardening selectively heats and quenches only the surface layer of the shaft, creating a hard shell while leaving the core softer and tougher. This provides superior wear resistance on the surface and high impact resistance at the core, which is often more desirable than a uniformly hard (but potentially brittle) through-hardened shaft.
Q: What industries commonly use these high-torque gearbox shafts?
A: They are essential in industries involving heavy machinery, including mining (crushers, conveyors), construction (excavators, cranes), marine (winches, propulsion), wind energy (gearboxes), and steel rolling mills.
Q: What quality control measures are in place during manufacturing?
A: Our process includes in-process inspections of machined dimensions, hardness testing (to verify 55 HRC), magnetic particle inspection for surface cracks, and final comprehensive dimensional checks before shipment.
Q: What is your typical lead time for a custom order?
A: Lead time varies based on order quantity and complexity. Generally, for standard custom designs, production can be completed within 4-6 weeks. We provide a precise timeline upon receipt of your inquiry and specifications.
Q: Do you provide any surface treatment beyond induction hardening?
A: Yes, additional treatments like phosphating, nitriding, or plating (e.g., zinc) can be applied for extra corrosion resistance or specific functional needs. These are available as optional features upon request.