SWC150 Universal Joint Cross Shaft – 55×128mm, 20CrMnTi Carburized & Hardened 58-64HRC for Heavy-Duty Cardan Shafts

Factory Direct | 20CrMnTi Alloy Steel | Carburized & Hardened (58-64HRC) | SWC150 Standard | 55×128mm | Precision Ground | High Wear Resistance | Heavy-Duty Torque Capacity | Ample Stock | OEM Customization

The Apexcoupling SWC150 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 SWC150 specifications with a shaft diameter of 55mm and a total length of 128mm (excluding retaining rings, thickness 2mm), this cross shaft is a direct fit for SWC150 series universal joints. With ample stock availability and full customization support, the SWC150 cross shaft is the ideal replacement part for rolling mills, mining equipment, metallurgical machinery, conveyors, and heavy industrial drive systems.

✅ Premium 20CrMnTi alloy steel – carburized & hardened to 58-64HRC for superior wear resistance. SWC150 standard dimensions – 55×128mm. 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 5513-2006 standard compliance – quality assured.

Key Technical Specifications

SWC150 Cross Shaft – Detailed Dimensions

📐 All dimensions are in millimeters (mm). Custom dimensions and specifications available upon request.

Why 20CrMnTi?

The SWC150 cross shaft is manufactured from 20CrMnTi, a premium low-carbon alloy structural steel specifically designed for carburizing applications:

💡 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 SWC150 cross shaft undergoes a rigorous multi-step manufacturing process to ensure premium quality:

1. Precise Die Forging – Creates optimal grain structure and material density

2. Normalizing – Refines grain structure and improves machinability

3. Precision Machining – CNC machining to exact dimensions with h6/g6 journal tolerance

4. Surface Carburizing – Infuses carbon into the surface layer for hardness

5. Surface Hardening – Quenching to achieve 58-64HRC surface hardness

6. Low-Temperature Tempering – Relieves stress while maintaining hardness

7. Finish Grinding – Precision grinding of bearing journals to ≤Ra0.4 surface finish

8. 100% Magnetic Particle Inspection – Ensures no cracks or defects

✅ This process ensures consistent quality, dimensional accuracy, and superior mechanical properties for demanding industrial applications.

Product Structure

1. Four Bearing Journals – Precision-ground surfaces (55mm) for smooth bearing fit and extended bearing life. Surface roughness ≤Ra0.4.

2. Heat-Treated Surface – Carburized and hardened layer (58-64HRC) provides exceptional wear resistance.

3. Tough Core – Maintains high impact resistance and toughness (33-48HRC) to withstand shock loads.

4. Precision Dimensions – Manufactured to SWC series standards (JB/T 5513-2006) for direct SWC150 compatibility.

💡 How it works: The SWC150 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 while transmitting high torque with minimal power loss. The 20CrMnTi material with carburized hardening ensures the shaft withstands heavy shock loads and abrasive wear in demanding industrial environments. The integral fork head design eliminates bolt connections, providing 30-50% longer service life and superior reliability.

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 SWC150 cross shaft is the core component of this system:

💡 SWC150 is a light to medium-duty specification within the SWC series, ideal for packaging, textile, automation equipment, and other medium-load applications.

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

• Truck Drive Shafts – Heavy-duty automotive applications

Why Choose Apex Coupling for SWC150 Cross Shafts?

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 SWC150 cross shaft?
A: The SWC150 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 SWC150 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 SWC150 cross shaft?
A: Shaft diameter: 55mm, total length: 128mm (excluding retaining rings). Retaining ring thickness: 2mm.

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 SWC150 cardan shafts?
A: Yes. The SWC150 cross shaft is manufactured to SWC series standards (JB/T 5513-2006) and is a direct replacement for SWC150 universal joint cross shafts.

Q: What is the manufacturing process?
A: Precise die forging → normalizing → machining → carburizing → hardening → tempering → finish grinding → 100% inspection.

Q: What is the surface finish quality?
A: Journal surface roughness is ≤Ra0.4, end face ≤Ra0.8, with precision h6/g6 tolerance.

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 (SWC150 standard or custom), quantity, and any customization requirements. Our engineers will provide a quotation within 24 hours.