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SWC100 Universal Joint Cross Shaft – 38×83mm, 20CrMnTi Carburized & Hardened
Model Number
Check below, custom
SWC100
- Phone : +86 13431039760
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- Email : ella@apexcoupling.com
Product Description
SWC100 Universal Joint Cross Shaft – 38×83mm, 20CrMnTi Carburized & Hardened for Heavy-Duty Cardan Shafts
Factory Direct | 20CrMnTi Alloy Steel | Carburized & Hardened (60HRC+) | SWC100 Standard | 38×83mm | Precision Ground | High Wear Resistance | Heavy-Duty Torque Capacity | Ample Stock | OEM Customization
The Apexcoupling SWC100 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 60HRC+ with a tough, shock-resistant core, providing the optimal balance for demanding heavy-duty applications.
Precision-machined to SWC100 specifications with a shaft diameter of Φ38mm and a total length of 83mm (excluding retaining rings), this cross shaft is a direct fit for SWC100 series universal joints. With ample stock availability and full customization support, the SWC100 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 60HRC+ for superior wear resistance. SWC100 standard dimensions – Φ38×83mm. Precision ground bearing journals – ensures accurate bearing fit and long service life. High core toughness – 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 | SWC100 Universal Joint Cross Shaft |
| Model | SWC100 |
| 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 | 60HRC+ (carburized layer) |
| Core Hardness | 33–48HRC (tough, impact-resistant) |
| Shaft Diameter (ΦM) | 38 mm |
| Total Length (L) | 83 mm (excluding retaining rings) |
| Retaining Ring Thickness | 1.5 mm |
| Tensile Strength | ≥1080 MPa |
| Yield Strength | ≥835 MPa |
| Manufacturing Process | Precise die forging, normalizing, machining, surface carburizing, surface hardening, low-temperature tempering, finish grinding |
| Standard | SWC series (JB/T 5513) |
| 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 |
SWC100 Cross Shaft – Detailed Dimensions
| Dimension | Value |
|---|---|
| Cross Shaft Diameter | 38 mm |
| Cross Shaft Length | 83 mm (excluding retaining rings) |
| Retaining Ring Thickness | 1.5 mm |
| Model | SWC100 |
| Surface Hardness | ≥60HRC |
| Core Hardness | 33-48HRC |
| Material | 20CrMnTi |
📐 All dimensions are in millimeters (mm). Custom dimensions and specifications available upon request.
Why 20CrMnTi?
The SWC100 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 (60HRC+) 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 |
| Precision Heat Treatment | Multi-step process: die forging, normalizing, carburizing, quenching, tempering, grinding |
| 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 SWC100 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 60HRC+ 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 (Φ38mm) for smooth bearing fit and extended bearing life.
Heat-Treated Surface – Carburized and hardened layer (60HRC+) provides exceptional wear resistance.
Tough Core – Maintains high impact resistance and toughness to withstand shock loads.
Precision Dimensions – Manufactured to JB/T 5513 standards for direct SWC100 compatibility.
💡 How it works: The SWC100 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 SWC100 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 |
Applications
Mining Equipment – Conveyor drives, crushers, feeders
Metallurgical Machinery – Rolling mills, continuous casting lines
Steel Mills – Main drive and auxiliary transmissions
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
Automotive Test Benches – High-speed dynamic balancing applications
💡 SWC100 is a light to medium-duty specification within the SWC series, ideal for packaging, textile, automation equipment, and other medium-load applications.Why Choose Apex Coupling for SWC100 Cross Shafts?
| Advantage | Description |
|---|---|
| Factory Direct | Competitive B2B pricing – no middlemen |
| Premium 20CrMnTi Steel | Carburized & hardened – 60HRC+ surface, tough core |
| GB/T 3077 Compliance | Manufactured to strict national standards |
| Precision Manufacturing | Die forging, carburizing, finish grinding – consistent quality |
| SWC100 Standard | Direct replacement – Φ38×83mm |
| 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 SWC100 cross shaft?
A: The SWC100 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 SWC100 cross shaft?
A: The surface hardness reaches 60HRC+ (carburized layer), while the core maintains 33-48HRC for toughness and impact resistance.
Q: What are the dimensions of the SWC100 cross shaft?
A: Shaft diameter: 38mm, total length: 83mm (excluding retaining rings). Retaining ring thickness: 1.5mm.
Q: What is the advantage of 20CrMnTi material?
A: 20CrMnTi provides a hard, wear-resistant surface (60HRC+) with a tough, shock-resistant core – the ideal combination for heavy-duty universal joint applications.
Q: Is this a direct replacement for SWC100 cardan shafts?
A: Yes. The SWC100 cross shaft is manufactured to SWC series standards (JB/T 5513) and is a direct replacement for SWC100 universal joint cross shafts.
Q: What is the manufacturing process?
A: Precise die forging → normalizing → machining → carburizing → hardening → tempering → finish grinding.
Q: What are the common applications?
A: Mining equipment, metallurgical machinery, rolling mills, steel mills, 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 (SWC100 standard or custom), quantity, and any customization requirements. Our engineers will provide a quotation within 24 hours.
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