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SWC250 Face-Tooth Flange Cardan Shaft – 48-Tooth Face Connection, Heavy-Duty, Integral Fork Head
Model Number
Check below, custom
SWC250
- Phone : +86 13431039760
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- Whatsapp : +86 13431039760
- Email : ella@apexcoupling.com
Product Description
SWC250 Face-Tooth Flange Cardan Shaft – 48-Tooth Face Connection, Heavy-Duty, Integral Fork Head
Factory Direct | 42CrMo / 40Cr Alloy Steel | Integral Forged Fork Head | 15-25° Axis Angle | Telescopic Welding Type | 48-Tooth Face Flange Connection | Painting Finish | OEM Customizable
The Apexcoupling SWC250 Face-Tooth Flange Cardan Shaft is a standard telescopic welding type universal joint drive shaft engineered for the most demanding heavy industrial power transmission applications. Featuring a robust integral forged fork head without bolt connections, this coupling delivers superior structural strength, reliability, and an extended service life. With a 15-25° angle compensation capability, high transmission efficiency (98-99.8%), and premium alloy steel construction (42CrMo / 40Cr), the SWC250 is the definitive solution for steel rolling mills, ship propulsion systems, mining equipment, heavy conveyors, and crane main drives.
The 48-tooth face flange connection provides a superior level of torque transmission stability and impact resistance compared to standard bolted flanges. The precisely machined interlocking teeth ensure accurate alignment and secure power transfer under severe shock loads and frequent reversing operations.
✅ Integral forged fork head – eliminates bolt loosening and breakage, the primary failure point in traditional universal joints. 48-tooth face flange – superior torque transmission, alignment, and impact resistance. 15-25° axis angle compensation – accommodates significant shaft misalignment. 98-99.8% transmission efficiency – energy-saving operation for high-power applications. JB/T5513-1991 / JB/T5513-2006 compliant. Premium forged steel construction – superior strength and durability.
Key Technical Specifications (JB/T5513-1991 / JB/T5513-2006)
| Parameter | Value |
|---|---|
| Model | SWC250 |
| Type | BH – Standard Telescopic Welding Type |
| Rotating Diameter (D) | 250 mm |
| Nominal Torque (Tn) | 63 kN·m (approx. 63,000 N·m) |
| Fatigue Torque (Tf) | 31.5 kN·m |
| Maximum Axis Angle | ≤15° |
| Telescopic Stroke (Ls) | 140 mm |
| Flange Outer Diameter (D’) | 250 mm |
| Bolt Circle Diameter (Db) | 225 mm |
| Bolt Holes (n) | 8 |
| Bolt Specification | M14 |
| Bolt Hole Diameter (d’) | 15.5 mm |
| Face-Tooth Inner Diameter (D2) | 200 mm |
| Number of Teeth (z) | 48 |
| Tooth Length (L) | 5 mm |
| Tooth Width (s) | 8.184 mm |
| Tooth Root Radius (R) | 2 mm |
| Tooth Height (he) | 4.746 mm |
| Total Tooth Height (h) | 12.141 mm |
| Tooth Tip Thickness (t) | 7 mm |
| Groove Angle (a) | 5.14° |
| Maximum Speed | 0 – 4000 RPM (customizable) |
| Body Material | 42CrMo / 40Cr alloy steel (quenching process) |
| Standard | JB/T5513-1991 / JB/T5513-2006 |
| Surface Treatment | Painting (yellow, orange, black, white available) |
| Customization | OEM – custom lengths, flange interfaces, and finishes |
| Place of Origin | Guangdong, China |
📐 Custom lengths and telescopic strokes available. Contact our engineering team for custom sizing.
48-Tooth Face Flange – Detailed Specifications
| Parameter | Value |
|---|---|
| Flange Outer Diameter (D’) | 250 mm |
| Bolt Circle Diameter (Db) | 225 mm |
| Number of Bolt Holes (n) | 8 |
| Bolt Specification | M14 |
| Bolt Hole Diameter (d’) | 15.5 mm |
| Face-Tooth Inner Diameter (D2) | 200 mm |
| Number of Teeth (z) | 48 |
| Tooth Length (L) | 5 mm |
| Tooth Width (s) | 8.184 mm |
| Tooth Root Radius (R) | 2 mm |
| Tooth Height (he) | 4.746 mm |
| Total Tooth Height (h) | 12.141 mm |
| Tooth Tip Thickness (t) | 7 mm |
| Groove Angle (a) | 5.14° |
📐 The 48-tooth face flange provides exceptional alignment and superior torque transmission under the most severe heavy loads.
Product Structure & Components
Integral Forged Fork Head – One-piece construction without bolt connections – eliminates the most common failure point in traditional universal joints. The SWC series uses an integral fork structure where bearings are fixed without bolts, avoiding loose bolt breakage and simplifying maintenance.
Cross Shaft Assembly (Spider) – Precision cross shaft with multi-row needle roller bearings for high wear resistance and strength. Equipped with grease fittings (注油孔) for easy lubrication.
Telescopic Welded Shaft – Standard telescopic design with 140mm stroke compensates for axial displacement.
48-Tooth Face Flange Connection – Features precisely machined interlocking teeth on the flange face (48 teeth, groove angle 5.14°) for accurate alignment and secure torque transmission under severe shock loads and reversing operations.
Alloy Steel Construction – 42CrMo or 40Cr with quenching process – high strength and durability. Raw blanks are refined via quenching and tempering, while spline shafts undergo intensive induction hardening.
💡 How it works: The SWC250 cardan shaft uses an integral fork head design that eliminates the weak link of bolt compression bearing seats, completely avoiding common malignant damage caused by bolt loosening or breaking. Torque is transmitted through the cross shaft, while the telescopic shaft accommodates axial displacement. The 48-tooth face flange connection provides superior alignment and torque transmission under heavy loads. The integral fork design provides 30-50% longer service life than bolt-connected designs. The SWC type offers greater angle compensation capability (15-25°) compared to SWP type (~10°).
Face-Tooth Flange Connection – Technical Advantages
The SWC250 features a 48-tooth face flange (also known as a claw or end-face tooth connection), which offers several critical advantages over standard bolted flanges for heavy-duty applications:
| Feature | Face-Tooth Flange (SWC250) | Standard Bolt Flange |
|---|---|---|
| Torque Transmission | Through interlocking teeth – positive drive | Through bolt preload – friction-dependent |
| Alignment Accuracy | Superior – teeth ensure precise centering | Moderate – relies on bolt fit |
| Impact Resistance | Excellent – teeth absorb shock loads | Limited – bolts can loosen under shock |
| Reversing Operation | Stable – no backlash in tooth engagement | Can experience bolt loosening |
| Maintenance | Reduced – no frequent bolt re-torquing | Frequent bolt inspection required |
| Load Capacity | Higher – uniform load distribution | Lower – concentrated at bolt points |
✅ The 48-tooth face flange is the preferred connection for heavy-load applications such as ship propulsion systems, medium-section steel rolling mills, and crane main drives, effectively preventing connection loosening under impact loads. The SWC250 is widely used in metallurgical industry applications with nominal torques from 63 kN·m to 710 kN·m.
Key Features & Advantages
| Advantage | Benefit |
|---|---|
| Integral Fork Head Design | No bolt connections – eliminates bolt loosening and breakage. Enhanced reliability and service life |
| 15-25° Angle Compensation | Greater than SWP types (~10°) – accommodates significant misalignment |
| High Transmission Efficiency | 98-99.8% – energy-saving operation for high-power transmission |
| 48-Tooth Face Flange Connection | Superior alignment, impact resistance, and torque transmission under heavy loads |
| Telescopic Welded Design | 140mm standard stroke – accommodates axial displacement |
| Enhanced Materials | 42CrMo / 40Cr alloy steel – high strength and wear resistance |
| Needle Roller Bearings | Multi-row needle bearings – high dynamic load capacity, wear resistance |
| Grease Fittings | Equipped with注油孔 – easy lubrication and maintenance |
| Heat Treatment | Quenching and tempering of blanks, induction hardening of spline shafts |
| Dynamic Balancing | Optional balancing – minimizes vibration at high speeds |
| Corrosion Protection | Industrial-grade anti-rust spray paint – seals against moisture and harsh environments |
| Customizable | Lengths, telescopic strokes, flange interfaces – fully customizable |
| JB/T5513 Standard | Manufactured to established Chinese national standard |
Applications
The SWC250 face-tooth flange cardan shaft is the preferred choice for the most demanding heavy industrial sectors:
Steel Rolling Mills – Medium-section rolling mills, main drive and auxiliary transmissions
Ship Propulsion Systems – Marine main and auxiliary drives
Mining Equipment – Heavy-duty conveyors, crushers, feeders
Crane Main Drives – Heavy-duty lifting and material handling
Metallurgical Equipment – Continuous casting lines, straighteners
Construction Machinery – Large-scale heavy equipment drives
Paper Machinery – Heavy-duty paper production lines
Petroleum Equipment – Oil and gas machinery
Why Choose Apex Coupling for SWC250 Face-Tooth Flange Cardan Shafts?
| Advantage | Description |
|---|---|
| Factory Direct | Competitive B2B pricing – no middlemen |
| Premium Materials | 42CrMo / 40Cr alloy steel – high strength and durability |
| Integral Fork Head | No bolt connections – superior reliability and longer service life |
| Large Angle Compensation | 15-25° – accommodates significant misalignment |
| High Efficiency | 98-99.8% – energy-saving operation |
| 48-Tooth Face Flange | Superior alignment and impact resistance for the heaviest loads |
| Customization | Lengths, telescopic strokes, flange interfaces – fully customizable |
| JB/T5513 Standard | Manufactured to established Chinese national standard |
| Ample Stock | Semi-finished stock available – fast delivery |
| Enhanced Bearings | Multi-row needle roller bearings with grease fittings – wear resistance |
| Heat Treatment | Quenching, tempering, and induction hardening – maximum durability |
Customization Options
| Customization | Options |
|---|---|
| Total Length | Custom lengths available – specify your required Lmin/Lmax |
| Telescopic Stroke | Custom strokes available |
| Flange Interface | Flange outer diameter, spigot diameter, bolt hole pattern – customizable |
| Flange Type | Face-tooth, claw, standard bolt, key-type – choose according to your application |
| Material | 42CrMo, 40Cr, or customer-specified alloys |
| Surface Treatment | Painting – yellow, orange, black, white, or custom |
| Balancing | Dynamic balancing available for high-speed applications |
FAQ
Q: What is a face-tooth flange connection?
A: A face-tooth flange connection uses precisely machined interlocking teeth on the flange faces to transmit torque. The SWC250 features 48 teeth with a groove angle of 5.14°, providing superior alignment, high torque transmission efficiency, and excellent impact resistance compared to standard bolted flanges.
Q: What is the advantage of the integral fork head design?
A: The integral fork head eliminates bolt connections, which are a common failure point in traditional universal joints. This significantly improves structural strength, reliability, and service life by approximately 30%.
Q: What is the maximum operating angle?
A: The SWC250 offers 15-25° axis angle compensation – significantly larger than the SWP type (~10°).
Q: What is the transmission efficiency?
A: The transmission efficiency reaches 98-99.8% – providing significant energy savings for high-power transmission applications.
Q: What materials are used?
A: The coupling is manufactured from 42CrMo or 40Cr alloy steel with a quenching process for high strength and durability. All blanks undergo quenching and tempering, with spline shafts induction-hardened.
Q: What is the torque specification for SWC250?
A: Nominal torque is 63 kN·m (approx. 63,000 N·m), with fatigue torque of 31.5 kN·m.
Q: What are the face-tooth flange specifications?
A: Flange outer diameter: 250mm, bolt circle: 225mm, 8×M14 bolt holes, 48 teeth, groove angle 5.14°.
Q: What industries is this coupling suitable for?
A: Steel rolling mills, ship propulsion, mining, heavy conveyors, cranes, metallurgical equipment, construction machinery, and petroleum equipment.
Q: Can I get a custom coupling?
A: Yes. We offer OEM customization – custom lengths, telescopic strokes, flange interfaces, materials, and finishes.
Q: What is the warranty?
A: 1 Year – quality assured.
Request a Quote
Send us your required specifications (length, flange interface type, telescopic stroke), quantity, and any customization requirements. Our engineers will provide a quotation within 24 hours.
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SWC250 face-tooth flange cardan shaft
