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As a leading manufacturer in power transmission solutions, Hebei Speed Torque Transmission Technology Co., Ltd. proudly presents our Double Cross Cardan Joint Assembly SWZ Cardan Shaft – specifically engineered for demanding conveyor transmission applications. Established in 2017 with a 3,000-5,000 m² facility and a dedicated team of 101-200 professionals, we deliver robust, reliable drive components trusted across global markets. Our SWZ series combines double cross design with precision manufacturing to offer exceptional angle compensation and torque capacity, making it an ideal choice for heavy-duty conveyor systems in mining, cement, steel, and bulk material handling.
Every SWZ cardan shaft is built to withstand high loads, shock, and misalignment while ensuring smooth, uninterrupted power transfer. With ISO9001 certification and an annual export value of US$5-10 million, our products are shipped through the ports of Shanghai, Tianjin, and Qingdao to clients in North America, Europe, Southeast Asia, Africa, and beyond. Below you will find detailed specifications and advantages that set our double cross cardan joint assembly apart.
Core Product Features & Specifications
Double Cross Joint Design – Two universal joints arranged in a cross configuration provide higher torque capacity and smoother operation at larger angles (up to 25° per joint).
SWZ Series Configuration – Standardized bearing yoke and flange yoke options compatible with most conveyor drive connections; available in complete assemblies including intermediate shaft.
High-Strength Alloy Steel Construction – Manufactured from heat-treated alloy steels like 40Cr or 42CrMo, offering excellent fatigue resistance and durability under cyclic loading.
Adjustable Length & Telescopic Option – Shaft length can be customized; optional splined telescopic section allows axial movement compensation up to 200 mm.
Sealed Lubrication System – Pre-filled with lithium-based grease and equipped with lip seals to minimize maintenance; available with centralized lubrication fittings.
High Torque Density – Compact design delivers torque up to 50,000 N·m (depending on size), suitable for medium to large conveyor drives.
Precision Balancing – Each assembly is dynamically balanced to ISO 1940 G6.3 grade, reducing vibration and extending component life.
Corrosion Resistance Options – Standard black oxide or painted finish; optional zinc plating or stainless steel for harsh environments.
Technical Parameters (Typical)
| Parameter | Value / Range |
|---|---|
| Shaft Diameter Range | 30–200 mm |
| Maximum Working Angle | ≤25° per joint |
| Rated Torque Range | 500–50,000 N·m (customizable) |
| Maximum Speed | Up to 3,000 RPM (size-dependent) |
| Standard Length (without telescopic) | 500–6,000 mm |
| Telescopic Stroke (if applicable) | Up to 200 mm |
| Balancing Grade | ISO 1940 G6.3 |
| Operating Temperature | -20°C to +80°C |
Advantages for Conveyor Applications
Accommodates Misalignment – Double cross joints compensate for angular, parallel, and axial misalignment between motor and driven pulley, reducing stress on bearings.
Reduces Downtime – Sealed bearings and grease retention extend service intervals; spare parts (bearing kits, yokes) are readily available.
Energy Efficient – Low friction cross trunnion design improves power transmission efficiency by up to 98%.
Easy Installation – Pre-assembled and balanced; flange connections use standard bolt patterns; no special tools required.
Wide Compatibility – Fits existing conveyor drive systems from most OEMs; can be used as a direct replacement for common cardan shaft types.
Customization – We offer custom lengths, connection flanges, spline specifications, and protective coatings to match unique conveyor layouts.
Trust & Reliability
At Hebei Speed Torque Transmission Technology, we combine over 7 years of specialized manufacturing experience with a modern 3,000-5,000 m² factory and a workforce of 101-200 skilled employees. Our ISO9001 quality management system ensures every SWZ double cross cardan shaft undergoes rigorous inspection – from raw material testing to final dynamic balancing. With an annual export value of US$5-10 million, we have successfully supplied thousands of units to conveyor projects in over 20 countries across North & South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East. Our reputation is built on consistent product performance, on-time delivery, and responsive technical support.
We invite you to experience the reliability of our SWZ cardan shaft. Whether you need a standard assembly or a custom-engineered solution, our team is ready to provide a competitive quotation and fast shipment from our ports in Shanghai, Tianjin, or Qingdao. Contact us today for a detailed dimensional drawing and free consultation – we are dedicated to keeping your conveyor line moving efficiently.
Frequently Asked Questions (FAQ)
Q1: What is the maximum working angle for the SWZ double cross cardan joint?
Each universal joint can operate at angles up to 25° maximum. For continuous operation, we recommend maintaining an angle below 15° to optimize bearing life and reduce vibration. For larger angular requirements, please consult our engineering team.
Q2: Can the shaft length be adjusted after delivery?
Standard assemblies have fixed length. However, we offer telescopic splined versions that allow axial adjustment up to 200 mm. We advise specifying your required working length and the desired telescopic stroke when ordering. Post-delivery modification is not recommended as it may affect balance and strength.
Q3: What materials are used in the SWZ cardan shaft?
The main components (yokes, cross journals, flanges) are made from high-strength alloy steel such as 40Cr or 42CrMo, heat-treated to achieve optimal hardness and toughness. Bearings are typically made from bearing steel. For corrosive environments, we can supply stainless steel options (e.g., 304 or 316).
Q4: Is the SWZ shaft interchangeable with common cardan shaft brands?
Yes, our dimensions follow standard SWZ series profiles (e.g., SWZ II, SWZ III, etc.), which are compatible with many existing conveyor drive connections. We recommend providing your current shaft model or dimensions (flange bolt pattern, length, bore diameter) for a direct match.
Q5: How often should I lubricate the cardan joint?
Our standard units are pre-lubricated with lithium grease and sealed. Under normal operating conditions, relubrication is required every 3-6 months depending on speed and duty cycle. For maintenance-free options with lifetime grease, please request during ordering. We also provide centralized lubrication fittings for automated systems.
Q6: What certifications does your factory hold?
Our factory is certified under ISO9001:2015 for quality management. We also follow industry standards such as ISO 1940 for balancing and JIS B 1452 for cardan shaft dimensions. Specific customer-requested certifications can be arranged on a project basis (subject to feasibility).
Q7: What is the typical lead time for a custom SWZ cardan shaft?
For standard sizes (up to 3000 mm length), lead time is approximately 15-25 working days. Custom designs with special materials or dimensions may require 30-45 working days. Express production can be arranged for urgent orders; please contact our sales team for current schedules.
Q8: Do you provide installation and maintenance manuals?
Yes, every shipment includes an installation guide, maintenance schedule, and spare parts list. We also offer technical support via email or video call for proper alignment and greasing procedures.
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