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SWC75BH Standard Telescopic Welding Cardan Shaft – Integral Fork Head, 1.0 kN·m, 0-4000 RPM
Model Number
Check below, custom
SWC75BH
- Phone : +86 13431039760
- Wechat : +86 13431039760
- Whatsapp : +86 13431039760
- Email : ella@apexcoupling.com
Product Description
SWC75BH Standard Telescopic Welding Cardan Shaft – Integral Fork Head, 1.0 kN·m, 0-4000 RPM for Heavy Industrial Machinery
Factory Direct | 40Cr / 35CrMo Alloy Steel | Integral Fork Head Design | 1.0 kN·m Nominal Torque | 0-4000 RPM | 15-25° Axis Angle | Telescopic Welding Type | Painting Finish | OEM Customizable
The Apexcoupling SWC75BH is a standard telescopic welding type cardan shaft (universal joint drive shaft) designed for reliable power transmission in heavy industrial applications. Featuring an integral forged fork head without bolt connections, this coupling delivers superior structural strength, reliability, and extended service life. With 15-25° angle compensation capability, high transmission efficiency (98-99.8%), and robust alloy steel construction (40Cr / 35CrMo), the SWC75BH is the ideal solution for steel rolling mills, mining equipment, conveyors, paper machinery, crushers, ship drives, and general industrial drives.
✅ Integral forged fork head – no bolt connections, eliminates bolt loosening and breakage. 15-25° axis angle compensation – accommodates significant misalignment. 98-99.8% transmission efficiency – energy-saving operation. Low noise operation. Compact & reliable – stable transmission, easy assembly and disassembly. JB/T5513-1991 / JB/T5513-2006 compliant.
Key Technical Specifications (JB/T5513-1991 / JB/T5513-2006)
| Parameter | Value |
|---|---|
| Model | SWC75BH |
| Type | BH – Standard Telescopic Welding Type |
| Rotating Diameter (D) | 75 mm |
| Nominal Torque (Tn) | 1.0 kN·m (approx. 1000 N·m) |
| Maximum Axis Angle | 15-25° |
| Telescopic Stroke (Ls) | 55 mm |
| Minimum Length (Lmin) | 400 mm |
| Flange Outer Diameter (D1) | 62 mm (js11) |
| Spigot Diameter (D2) | 42 mm (H7) |
| Tube Outer Diameter (D3) | 50 mm |
| Spigot Depth (t) | 2.5 mm |
| Flange Thickness (k) | 6 mm |
| Bolt Holes (n-d) | 6-7 mm (6 holes evenly distributed) |
| Cross Shaft Dimensions | 24×63 mm |
| Maximum Speed | 0 – 4000 RPM (customizable) |
| Allowable Torque Range | 1.25 – 1000 N·m (custom higher available) |
| Body Material | 40Cr / 35CrMo 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.
Product Structure & Components
Integral Forged Fork Head – One-piece construction without bolt connections – eliminates bolt loosening and breakage, the most common failure point in traditional universal joints.
Cross Shaft Assembly (Spider) – Precision cross shaft with multi-row needle roller bearings for high wear resistance and strength. Equipped with grease fittings (注油嘴) for easy lubrication. Cross shaft dimensions: 24×63mm.
Telescopic Welded Shaft – Standard telescopic design with 55mm stroke compensates for axial displacement.
Flange Connection – 62mm outer diameter flange with 6 holes evenly distributed at 7mm diameter for secure mounting.
Alloy Steel Construction – 40Cr or 35CrMo with quenching process – high strength and durability.
💡 How it works: The SWC75BH 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 flange connection provides secure mounting to driven equipment.
SWC75BH vs Other SWC Types – Quick Comparison
| Type | Description | Best For |
|---|---|---|
| BH | Standard Telescopic Welding | General industrial, most common type |
| BF | Standard Telescopic Flange | Quick assembly/disassembly, regular maintenance |
| DH | Short Telescopic Welding | Space-constrained installations |
| CH | Long Telescopic Welding | Large axial displacement requirements |
| WH | Non-Telescopic Welding | Fixed-length applications |
| WF | Non-Telescopic Flange | Fixed-length with flange connection |
💡 BH (Standard Telescopic Welding) is the most commonly used type in the SWC series, offering the best balance of performance, reliability, and versatility for general industrial applications.
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 |
| Low Noise Operation | Smooth, quiet operation – reduces workplace noise pollution |
| High Load Capacity | Transmits greater torque than other couplings with same rotating diameter |
| Telescopic Welded Design | 55mm standard stroke – accommodates axial displacement |
| Enhanced Materials | 40Cr / 35CrMo alloy steel – high strength and wear resistance |
| Needle Roller Bearings | Multi-row needle bearings – high dynamic load capacity, wear resistance |
| Grease Fittings | Equipped with注油嘴 – easy lubrication and maintenance |
| Customizable | Lengths, telescopic strokes, flange interfaces – fully customizable |
| Durable Coating | Painting finish – corrosion-resistant (yellow, orange, black, white) |
Applications
Steel Rolling Mills – Main drive and auxiliary transmissions
Mining Equipment – Conveyors, crushers, feeders
Conveyor Systems – Material handling and transport
Paper Machinery – Paper production and finishing
Ship Drives – Marine propulsion auxiliary systems
Crushers & Straighteners – Heavy machinery drives
Construction Machinery – Heavy equipment drives
Agricultural Machinery – Farm equipment and harvesters
Energy & Mining Systems – Power transmission in demanding environments
Automotive & Industrial Equipment – Heavy-duty drive applications
Why Choose Apex Coupling for SWC75BH Cardan Shafts?
| Advantage | Description |
|---|---|
| Factory Direct | Competitive B2B pricing – no middlemen |
| Premium Materials | 40Cr / 35CrMo 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 |
| 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 |
Customization Options
| Customization | Options |
|---|---|
| Total Length | Custom lengths available – specify your required Lmin/Lmax |
| Telescopic Stroke | Standard 55mm – custom strokes available |
| Flange Interface | Flange outer diameter, spigot diameter, bolt hole pattern – customizable |
| Material | 40Cr, 35CrMo, 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 an SWC75BH cardan shaft?
A: The SWC75BH is a standard telescopic welding type universal joint drive shaft with an integral fork head design. It transmits torque between shafts that are not collinear, with angle compensation up to 25°.
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.
Q: What is the maximum operating angle?
A: The SWC75BH 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 40Cr or 35CrMo alloy steel with a quenching process for high strength and durability.
Q: What is the torque and speed range?
A: Nominal torque is 1.0 kN·m (approx. 1000 N·m), with allowable torque range from 1.25 to 1000 N·m. Maximum speed is up to 4000 RPM.
Q: What industries is this coupling suitable for?
A: Steel rolling mills, mining, conveyors, paper machinery, ship drives, crushers, construction machinery, agricultural equipment, and general industrial applications.
Q: Does the coupling require balancing?
A: For high-speed applications (above normal operating speeds), dynamic balancing is recommended. Please specify when ordering.
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, telescopic stroke), quantity, and any customization requirements. Our engineers will provide a quotation within 24 hours.
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SWC75BH cardan shaft
