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| Customization: | Available |
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| Standard Or Nonstandard: | Nonstandard |
| Shaft Hole: | 10-32 |
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
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| Service | CNC Machining |
| Turning and Milling | |
| CNC Turning | |
| OEM Parts | |
| Material | 1). Aluminum: AL 6061-T6, 6063, 7075-T etc |
| 2). Stainless steel: 303,304,316L, 17-4(SUS630) etc | |
| 3). Steel: 4140, Q235, Q345B,20#,45# etc. | |
| 4). Titanium: TA1,TA2/GR2, TA4/GR5, TC4, TC18 etc | |
| 5). Brass: C36000 (HPb62), C37700 (HPb59), C26800 (H68), C22000(H90) etc | |
| 6). Copper, bronze, Magnesium alloy, Delrin, POM,Acrylic, PC, etc. | |
| Finish | Sandblasting, Anodize color, Blackenning, Zinc/Nickl Plating, Polish, |
| Power coating, Passivation PVD, Titanium Plating, Electrogalvanizing, | |
| electroplating chromium, electrophoresis, QPQ(Quench-Polish-Quench), | |
| Electro Polishing,Chrome Plating, Knurl, Laser etch Logo, etc. | |
| Main Equipment | CNC Machining center(Milling), CNC Lathe, Grinding machine, |
| Cylindrical grinder machine, Drilling machine, Laser Cutting Machine,etc. | |
| Drawing format | STEP,STP,GIS,CAD,PDF,DWG,DXF etc or samples. |
| Tolerance | +/-0.01mm ~ +/-0.05mm |
| Surface roughness | Ra 0.1~3.2 |
| Inspection | Complete inspection lab with Micrometer, Optical Comparator, Caliper Vernier,CMM |
| Depth Caliper Vernier, Universal Protractor, Clock Gauge, Internal Centigrade Gauge | |
| Capacity | CNC turning work range: φ0.5mm-φ150mm*300mm |
| CNC milling work range: 510mm*1020mm*500mm |
Features of jaw coupling:
1.Easy of inspection,easy maintenance.
2.Can absorb vibration,parallel,angular and axial misalignments.
3.Identical clockwise and anticlockwise rotational charateristics.
4.Both ends material is iron, intermediate for rubber materials.
5.Simple configuration, setscrew type,low price.
6.Hole can be self-processing,easy facilitate.
7.For step motor,screw, machine positioning system. The SL cross slide coupling is slid in the corresponding radial grooves of the large end faces
of the half couplings on both sides.
The main feature of the slider coupling is that it allows the two shafts to have a large radial
displacement, and allows for small angular displacement and axial displacement. Due to the
centrifugal force generated by the eccentric motion of the slider, it is not suitable to use this
coupling. High-speed movement, the coupling torque of the coupling is 120-63000N.m, the
speed is 250-70r/min.
Advantages:
Protects driven component by serving as a mechanical "fuse" - an inexpensive replaceable plastic
midsection shears under excess load.
Protects support bearings by exerting consistently low reactive forces, even under large misalignments.
Homokinetic transmission - driving and driven shafts rotate at exactly the same speed at all times.
Zero backlash and high torsional stiffness.
Accommodates large radial misalignment in a short length.
Easy installation in blind or difficult installations when through-bores are used.
Economically priced compared to other couplings with similar performance characteristics.
A universal coupling (also called a universal joint or U-joint) is a mechanical component used to connect two shafts that are not in line with each other, transmitting rotational power and torque. It compensates for angular, radial, and axial misalignment, allowing smooth power transmission in various applications.
The primary parts of a universal coupling include:
Cross: The central part that connects two yokes and supports the bearings.
Yokes (U-Yokes): Fork-like components that hold the cross in place and connect the shafts to the coupling.
Needle Bearings: Small cylindrical bearings that sit within the yokes and cross, reducing friction and ensuring smooth rotation.
Caps (End Caps): Cover the ends of the cross and protect the bearings.
Bolts/Retaining Clips: Used to secure the cross to the yokes and keep the coupling intact.
Lubrication Fittings: Allow grease or oil to be injected to reduce friction and extend the lifespan of the parts.
A universal coupling works by allowing two shafts to rotate at different angles while still transferring torque and rotational power. The cross connects two yokes, and the needle bearings in the cross reduce friction during operation. This setup allows for angular misalignment between the shafts, which is critical in many mechanical systems.
There are several types of universal couplings, including:
Single U-Joint: A basic universal coupling used for low to moderate torque transmission in various machinery.
Double U-Joint: Used in applications that require more torque and can handle larger angular misalignments.
CV Joints (Constant Velocity Joints): Special types of universal joints used in applications requiring constant rotational speed, such as automotive drive shafts.
Cardan Joints: A type of universal joint often used in heavy machinery and vehicles.
Universal coupling parts are usually made from durable materials that can withstand high stresses, torque, and wear. Common materials include:
Steel: High-strength steel alloys are the most common for parts like the cross, yokes, and bolts.
Stainless Steel: Used for applications requiring resistance to corrosion, especially in marine or harsh environments.
Alloy Steel: Often used for heavy-duty applications due to its ability to withstand higher loads.
Plastic/Composite Materials: Some parts, such as grease fittings or lightweight couplings, may use plastic or composites.
When choosing a universal coupling, consider:
Torque Requirements: Select a coupling that can handle the required torque for your system.
Misalignment: Determine the amount of angular, axial, and radial misalignment that the coupling must accommodate.
Speed: Choose a coupling that can operate at the desired rotational speed.
Size and Fit: Ensure the coupling and its parts fit correctly with the shafts.
Environmental Conditions: Consider temperature, corrosion resistance, and exposure to chemicals.
Needle bearings are small, cylindrical roller bearings used within the yokes and cross of a universal coupling. Their role is to reduce friction and wear between the moving parts, ensuring smooth rotation and extending the lifespan of the coupling.
To maintain a universal coupling:
Lubrication: Regularly grease the bearings and cross through the lubrication fittings to prevent excessive wear.
Inspection: Periodically check for signs of wear or damage, such as cracks, excessive play, or rust.
Cleaning: Keep the coupling clean and free from debris that could damage the parts.
Tightening: Ensure that all bolts, retaining clips, and fasteners are securely tightened to prevent loosening during operation.
Common issues with universal couplings include:
Excessive Wear: Caused by lack of lubrication or using the coupling beyond its design limits.
Misalignment: If misalignment exceeds the coupling's capacity, it can cause excessive vibration, noise, or failure.
Corrosion: Particularly in environments with high humidity, chemicals, or saltwater.
Loose or Damaged Bolts: Improperly tightened or worn bolts can lead to failure of the coupling assembly.
You should consider replacing a universal coupling when:
Excessive Play: If there is noticeable movement in the coupling or the parts appear worn out.
Vibration and Noise: If the system produces unusual noise or vibration, it could indicate internal damage.
Cracks or Damage: If the yokes or cross show visible signs of cracking, scoring, or other physical damage.
Frequent Lubrication: If the coupling fails to maintain proper lubrication or frequently needs re-greasing despite proper maintenance.
Yes, but it depends on the design. For high-speed applications, specialized types of universal joints (like CV joints or high-speed U-joints) are used to maintain constant speed while handling the misalignment. In standard U-joints, high speeds can lead to increased wear and potential failure, so it's important to choose the right type for your application.
The lifespan of a universal coupling depends on several factors including:
Lubrication frequency
Operational load
Environmental conditions
Misalignment
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