China Best Sales Swcz Series Industrial Universal Shaft/Cardan Joint

Product Description

SWCZ Series-Heavy-Duty Designs Cardan shaft


Data and Size of SWCZ Series Universal Joint Couplings


Type Design
C L 1540 1600 1840 1920 1920 2120 2280 2280 2380 2480 2500 2720
m(kg) 3150 3450 4300 4680 5050 6400 8420 8950 10600 12100 13500 16900
D L 1940 2100 2400 2500 2500 2680 2950 2950 3130 3200 3300 3570
m(kg) 3220 3530 4500 5400 5800 7470 9980 10500 12300 14500 15800 19500
E L 3230 3460 3620 4000 4000 4250 4580 4850 4770 4950 5100 5660
LV 250 250 250 250 250 250 300 300 300 300 300 300
m(kg) 4880 5400 8000 8450 9070 11800 15900 16500 19900 22000 27500 34800
  Tn(N·m) 1640 1750 2250 2500 2670 3100 3800 4050 5200 6500 6900 9000
  Tf(N·m) 980 1050 1350 1500 1600 1860 2280 2430 3120 3900 4140 5400
  β(°) 15 15 15 15 15 15 15 15 15 15 15 15
  D 680 700 750 780 800 840 900 920 1000 1060 1100 1200
  Df 680 700 750 780 800 840 900 920 1000 1060 1100 1200
  D1 635 635 695 725 745 775 935 855 915 920 1015 1100
  D2(H9) 550 570 610 640 660 710 740 760 840 900 920 1000
  D3 560 560 620 660 660 660 750 750 790 800 850 900
  Lm 385 400 480 480 480 530 570 570 595 620 625 680
  k 70 70 95 95 95 110 120 120 130 130 130 130
  n 24 24 24 24 24 24 24 24 24 20 20 20
  d 26 26 31 31 36 38 38 38 50 45 50 58
  Flange bolt M24 M24 M30 M30 M30 M36 M36 M36 M48 M42 M48 M56

1. Notations: 
L=Standard length, or compressed length for designs with length compensation; 
LV=Length compensation; 
Tn=Nominal torque(Yield torque 50% over Tn); 
TF=Fatigue torque, I. E. Permissible torque as determined according to the fatigue strength
Under reversing loads; 
β=Maximum deflection angle; 
MI=weight per 100mm tube
2. Millimeters are used as measurement units except where noted; 
3. Please consult us for customizations regarding length, length compensation and
Flange connections. 
(DIN or SAT etc. )

Material: Alloy Steel
Load: Drive Shaft
Stiffness & Flexibility: Stiffness / Rigid Axle
Journal Diameter Dimensional Accuracy: IT6-IT9
Axis Shape: Straight Shaft
Shaft Shape: Hollow Axis


Customized Request

universal joint

How do you retrofit an existing mechanical system with a universal joint?

Retrofitting an existing mechanical system with a universal joint involves modifying or adding components to integrate the universal joint into the system. Here’s a detailed explanation of the retrofitting process:

To retrofit an existing mechanical system with a universal joint, follow these steps:

  1. Evaluate the System: Begin by thoroughly assessing the existing mechanical system. Understand its design, components, and the type of motion it requires. Identify the specific area where the universal joint needs to be incorporated and determine the necessary modifications or additions.
  2. Design Considerations: Take into account the operating conditions, load requirements, and available space in the system. Consider the size, type, and specifications of the universal joint that will best suit the retrofit. This includes selecting the appropriate joint size, torque capacity, operating angles, and any additional features required for compatibility with the system.
  3. Measurements and Alignment: Accurately measure the dimensions and alignment of the existing system, particularly the shafts involved in the retrofit. Ensure that the required modifications or additions align properly with the system’s existing components. Precise measurements are crucial for a successful retrofit.
  4. Modify Existing Components: In some cases, it may be necessary to modify certain components of the existing system to accommodate the universal joint. This could involve machining or welding to create attachment points or adjust the dimensions of the system’s components to ensure proper fitment of the universal joint and its associated parts.
  5. Integrate the Universal Joint: Install the universal joint into the retrofit area according to the system’s requirements and design considerations. This involves securely attaching the universal joint to the modified or existing components using appropriate fasteners or connection methods as specified by the manufacturer. Ensure that the joint is properly aligned with the shafts to facilitate smooth and efficient motion transfer.
  6. Supporting Components: Depending on the specific retrofit requirements, additional supporting components may be needed. This can include yokes, bearings, shaft couplings, or guards to ensure proper functioning and protection of the universal joint assembly and the overall system.
  7. Testing and Adjustment: Once the retrofit is complete, thoroughly test the system to ensure that the universal joint operates smoothly and meets the desired performance requirements. Make any necessary adjustments to align the system and optimize its functionality. It is essential to verify that the retrofit does not introduce any adverse effects or compromise the overall operation of the mechanical system.

Retrofitting an existing mechanical system with a universal joint requires careful planning, precise measurements, and proper integration of the joint into the system. By following these steps and considering the design considerations and compatibility, it is possible to successfully incorporate a universal joint into an existing mechanical system and enhance its functionality and performance.

universal joint

How does a constant-velocity (CV) joint differ from a traditional universal joint?

A constant-velocity (CV) joint differs from a traditional universal joint in several ways. Here’s a detailed explanation:

A traditional universal joint (U-joint) and a constant-velocity (CV) joint are both used for transmitting torque between non-aligned or angularly displaced shafts. However, they have distinct design and operational differences:

  • Mechanism: The mechanism of torque transmission differs between a U-joint and a CV joint. In a U-joint, torque is transmitted through a set of intersecting shafts connected by a cross or yoke arrangement. The angular misalignment between the shafts causes variations in speed and velocity, resulting in fluctuating torque output. On the other hand, a CV joint uses a set of interconnected elements, typically ball bearings or roller bearings, to maintain a constant velocity and torque output, regardless of the angular displacement between the input and output shafts.
  • Smoothness and Efficiency: CV joints offer smoother torque transmission compared to U-joints. The constant velocity output of a CV joint eliminates speed fluctuations, reducing vibrations and allowing for more precise control and operation. This smoothness is particularly advantageous in applications where precise motion control and uniform power delivery are critical. Additionally, CV joints operate with higher efficiency as they minimize energy losses associated with speed variations and friction.
  • Angular Capability: While U-joints are capable of accommodating larger angular misalignments, CV joints have a limited angular capability. U-joints can handle significant angular displacements, making them suitable for applications with extreme misalignment. In contrast, CV joints are designed for smaller angular displacements and are typically used in applications where constant velocity is required, such as automotive drive shafts.
  • Operating Angles: CV joints can operate at larger operating angles without significant loss in torque or speed. This makes them well-suited for applications that require larger operating angles, such as front-wheel drive vehicles. U-joints, on the other hand, may experience speed fluctuations and reduced torque transmission capabilities at higher operating angles.
  • Complexity and Size: CV joints are generally more complex in design compared to U-joints. They consist of multiple components, including inner and outer races, balls or rollers, cages, and seals. This complexity often results in larger physical dimensions compared to U-joints. U-joints, with their simpler design, tend to be more compact and easier to install in tight spaces.

In summary, a constant-velocity (CV) joint differs from a traditional universal joint (U-joint) in terms of torque transmission mechanism, smoothness, efficiency, angular capability, operating angles, complexity, and size. CV joints provide constant velocity output, smoother operation, and higher efficiency, making them suitable for applications where precise motion control and uniform power delivery are essential. U-joints, with their ability to accommodate larger angular misalignments, are often preferred for applications with extreme misalignment requirements.

universal joint

What lubrication is required for a universal joint?

Proper lubrication is crucial for the smooth and efficient operation of a universal joint. The type and amount of lubrication required may vary depending on the specific design and manufacturer’s recommendations. Here are some general guidelines:

  • High-quality lubricant: It is important to use a high-quality lubricant that is specifically recommended for universal joints. Consult the manufacturer’s guidelines or technical documentation to determine the appropriate lubricant type and viscosity for your universal joint.
  • Grease or oil: Universal joints can be lubricated with either grease or oil, depending on the design and application requirements. Grease is commonly used as it provides good lubrication and helps to seal out contaminants. Oil can be used in applications that require constant lubrication or when specified by the manufacturer.
  • Quantity of lubrication: Apply the recommended quantity of lubricant as specified by the manufacturer. Over-greasing or under-greasing can lead to problems such as excessive heat, increased friction, or inadequate lubrication. Follow the manufacturer’s guidelines to ensure the optimal amount of lubricant is applied.
  • Lubrication points: Identify the lubrication points on the universal joint. These are typically located at the cross bearings or bearing cups where the cross interfaces with the yoke. Apply the lubricant directly to these points to ensure proper lubrication of the moving components.
  • Lubrication intervals: Establish a lubrication schedule based on the operating conditions and manufacturer’s recommendations. Regularly inspect and lubricate the universal joint according to the specified intervals. Factors such as operating speed, load, temperature, and environmental conditions may influence the frequency of lubrication.
  • Re-lubrication: In some cases, universal joints may have provisions for re-lubrication. This involves purging old lubricant and replenishing it with fresh lubricant. Follow the manufacturer’s instructions for the re-lubrication procedure, including the recommended interval and method.
  • Environmental considerations: Consider the operating environment when selecting the lubricant. Factors such as temperature extremes, exposure to moisture or chemicals, and the presence of contaminants can affect the choice and performance of the lubricant. Choose a lubricant that is suitable for the specific environmental conditions of your application.
  • Maintenance and inspection: Regularly inspect the universal joint for signs of inadequate lubrication, excessive wear, or contamination. Monitor the temperature of the joint during operation, as excessive heat can indicate insufficient lubrication. Address any lubrication issues promptly to ensure the proper functioning and longevity of the universal joint.

Always refer to the manufacturer’s recommendations and guidelines for lubrication specific to your universal joint model. Following the proper lubrication practices will help optimize the performance, reduce wear, and extend the lifespan of the universal joint.

China Best Sales Swcz Series Industrial Universal Shaft/Cardan Joint  China Best Sales Swcz Series Industrial Universal Shaft/Cardan Joint
editor by CX 2023-11-08

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