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SWC180 Universal Joint Cross Shaft – 75×152.5mm, 20CrMnTi Carburized & Hardened 58-64HRC
Model Number
Check below, custom
SWC180
- Phone : +86 13431039760
- Wechat : +86 13431039760
- Whatsapp : +86 13431039760
- Email : ella@apexcoupling.com
Product Description
SWC180 Universal Joint Cross Shaft – 75×152.5mm, 20CrMnTi Carburized & Hardened 58-64HRC for Heavy-Duty Cardan Shafts
Factory Direct | 20CrMnTi Alloy Steel | Carburized & Hardened (58-64HRC) | SWC180 Standard | 75×152.5mm | Precision Ground | High Wear Resistance | Heavy-Duty Torque Capacity | Ample Stock | OEM Customization
The Apexcoupling SWC180 Universal Joint Cross Shaft is a high-precision, heavy-duty replacement component designed for SWC series cardan shafts and universal joint drive systems. Manufactured from premium 20CrMnTi alloy steel with carburizing and hardening heat treatment, this cross shaft delivers exceptional wear resistance, high surface hardness, and superior core toughness. The surface hardness reaches 58-64HRC with a tough, shock-resistant core (33-48HRC), providing the optimal balance for demanding heavy-duty applications.
Precision-machined to SWC180 specifications with a shaft diameter of 75mm and a total length of 152.5mm (excluding retaining rings, thickness 3mm), this cross shaft is a direct fit for SWC180 series universal joints. With ample stock availability and full customization support, the SWC180 cross shaft is the ideal replacement part for mining equipment, metallurgical machinery, rolling mills, conveyors, and heavy industrial drive systems.
✅ Premium 20CrMnTi alloy steel – carburized & hardened to 58-64HRC for superior wear resistance. SWC180 standard dimensions – 75×152.5mm. Precision ground bearing journals – ensures accurate bearing fit and long service life. High core toughness (33-48HRC) – withstands heavy shock loads without fracturing. Ample stock – ready for immediate shipment. OEM customization – custom sizes and materials available. JB/T 5513 standard compliance – quality assured.
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | SWC180 Universal Joint Cross Shaft |
| Model | SWC180 / SWC-I 180 |
| Material | 20CrMnTi alloy steel – low carbon alloy structural steel for carburizing |
| Heat Treatment | Carburizing + quenching + low-temperature tempering – surface hardening with tough core |
| Surface Hardness | 58-64HRC (carburized layer) |
| Core Hardness | 33-48HRC (tough, impact-resistant) |
| Shaft Diameter | 75 mm |
| Total Length | 152.5 mm (excluding retaining rings) |
| Retaining Ring Thickness | 3 mm |
| Standard | SWC series (JB/T 5513-2006) |
| Customization | OEM – custom sizes and materials |
| Stock Availability | Ample – ready for immediate shipment |
| Lead Time | 7-15 days for custom orders |
| Place of Origin | Guangdong, China |
SWC180 Cross Shaft – Detailed Dimensions
| Dimension | Value |
|---|---|
| Cross Shaft Diameter | 75 mm |
| Cross Shaft Length | 152.5 mm (excluding retaining rings) |
| Retaining Ring Thickness | 3 mm |
| Model | SWC180 |
| Surface Hardness | 58-64HRC |
| Core Hardness | 33-48HRC |
| Material | 20CrMnTi |
📐 All dimensions are in millimeters (mm). Custom dimensions and specifications available upon request.
Why 20CrMnTi?
The SWC180 cross shaft is manufactured from 20CrMnTi, a premium low-carbon alloy structural steel specifically designed for carburizing applications:
| Property | Benefit |
|---|---|
| Surface Carburizing | Creates a hard, wear-resistant surface layer (58-64HRC) while maintaining a tough core |
| High Core Toughness | Absorbs shock loads and impact without fracturing – critical for heavy-duty drives |
| Excellent Fatigue Resistance | Withstands millions of stress cycles – extends service life |
| High Tensile Strength | ≥1080 MPa |
| GB/T 3077 Compliance | Manufactured to strict Chinese national standards |
💡 20CrMnTi achieves the ideal “hard surface, tough core” combination – the surface resists wear while the core withstands shock loading. This is the material standard for high-performance universal joint cross shafts.
Manufacturing Process
The SWC180 cross shaft undergoes a rigorous multi-step manufacturing process to ensure premium quality:
Precise Die Forging – Creates optimal grain structure and material density
Normalizing – Refines grain structure and improves machinability
Precision Machining – CNC machining to exact dimensions
Surface Carburizing – Infuses carbon into the surface layer for hardness
Surface Hardening – Quenching to achieve 58-64HRC surface hardness
Low-Temperature Tempering – Relieves stress while maintaining hardness
Finish Grinding – Precision grinding of bearing journals for smooth operation
✅ This process ensures consistent quality, dimensional accuracy, and superior mechanical properties for demanding industrial applications.
Product Structure
Four Bearing Journals – Precision-ground surfaces (75mm) for smooth bearing fit and extended bearing life.
Heat-Treated Surface – Carburized and hardened layer (58-64HRC) provides exceptional wear resistance.
Tough Core – Maintains high impact resistance and toughness (33-48HRC) to withstand shock loads.
Precision Dimensions – Manufactured to SWC series standards (JB/T 5513-2006) for direct SWC180 compatibility.
💡 How it works: The SWC180 cross shaft serves as the central torque-transmitting component of the SWC universal joint. The four bearing journals connect to the yoke bearings, allowing angular misalignment compensation (15-25° per joint) while transmitting high torque with minimal power loss (98-99.8% efficiency). The 20CrMnTi material with carburized hardening ensures the shaft withstands heavy shock loads and abrasive wear in demanding industrial environments.
SWC Series – Overview
The SWC series features integral fork head (whole yoke) construction – a single-piece forged yoke that eliminates the bolt-clamped bearing cap design found in split-housing alternatives. The SWC180 cross shaft is the core component of this system:
| Feature | Benefit |
|---|---|
| Integral yoke design | No bolt connections – eliminates bolt loosening and breakage |
| Large angular compensation | 15-25° axis angle per joint – superior to SWP types |
| High transmission efficiency | 98-99.8% – energy-saving operation |
| High load capacity | Greater torque than other couplings with same rotating diameter |
| Long service life | 30-50% longer than bolt-connected designs |
💡 SWC180 is a heavy-duty specification within the SWC series, ideal for rolling mills, steel mills, mining equipment, and heavy industrial drives.
Applications
Rolling Mills – Main drive and auxiliary transmissions
Mining Equipment – Conveyor drives, crushers, feeders
Steel Mills – Heavy-duty power transmission
Metallurgical Machinery – Continuous casting lines
Heavy Industrial Drives – High-torque power transmission
Cranes & Hoists – Lifting and material handling equipment
Paper Machinery – Paper production equipment
Construction Equipment – Heavy machinery drives
Petroleum Equipment – Oil and gas machinery
Shipbuilding – Marine propulsion auxiliary systems
Mobile Drilling Rigs – JZ-40CZ and similar equipment
Why Choose Apex Coupling for SWC180 Cross Shafts?
| Advantage | Description |
|---|---|
| Factory Direct | Competitive B2B pricing – no middlemen |
| Premium 20CrMnTi Steel | Carburized & hardened – 58-64HRC surface, tough core |
| GB/T 3077 Compliance | Manufactured to strict national standards |
| Precision Manufacturing | Die forging, carburizing, finish grinding – consistent quality |
| SWC180 Standard | Direct replacement – 75×152.5mm |
| Ample Stock | Ready for immediate shipment |
| OEM Customization | Custom sizes and materials available |
| ISO9001 Certified | Quality assured manufacturing |
FAQ
Q: What is a cross shaft (universal joint cross)?
A: A cross shaft (also called a spider or cross axis) is the central component of a universal joint that transmits torque between the yokes. It features four bearing journals that connect to the yoke bearings, allowing angular misalignment compensation.
Q: What material is used for the SWC180 cross shaft?
A: The SWC180 cross shaft is manufactured from 20CrMnTi alloy steel – a premium low-carbon alloy steel specifically designed for carburizing applications.
Q: What is the hardness of the SWC180 cross shaft?
A: The surface hardness reaches 58-64HRC (carburized layer), while the core maintains 33-48HRC for toughness and impact resistance.
Q: What are the dimensions of the SWC180 cross shaft?
A: Shaft diameter: 75mm, total length: 152.5mm (excluding retaining rings). Retaining ring thickness: 3mm.
Q: What is the advantage of 20CrMnTi material?
A: 20CrMnTi provides a hard, wear-resistant surface (58-64HRC) with a tough, shock-resistant core (33-48HRC) – the ideal combination for heavy-duty universal joint applications.
Q: Is this a direct replacement for SWC180 cardan shafts?
A: Yes. The SWC180 cross shaft is manufactured to SWC series standards (JB/T 5513-2006) and is a direct replacement for SWC180 universal joint cross shafts.
Q: What is the manufacturing process?
A: Precise die forging → normalizing → machining → carburizing → hardening → tempering → finish grinding.
Q: What is the transmission efficiency?
A: SWC series cardan shafts achieve 98-99.8% transmission efficiency when used with multi-row needle roller bearings.
Q: What are the common applications?
A: Rolling mills, mining equipment, steel mills, metallurgical machinery, conveyors, cranes, paper machinery, construction equipment, and heavy industrial drives.
Q: Can I get a custom cross shaft?
A: Yes. We offer OEM customization – custom sizes and materials available.
Q: What is the warranty?
A: 1 Year – quality assured.
Request a Quote
Send us your required specifications (SWC180 standard or custom), quantity, and any customization requirements. Our engineers will provide a quotation within 24 hours.
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