What Is a Weld-On Hub?
Weld-on hubs are mechanical components used to securely attach power transmission parts, such as sprockets, pulleys, and gears to shafts. Weld-on hubs are designed to be welded onto a mating component, creating a strong and permanent connection that can handle heavy loads and rotational forces. These hubs are commonly made from steel or cast iron, ensuring durability and resistance to wear.
Weld-On Hubs Function in Mechanical Power Transmission
Weld-on hubs serve as an intermediary between a rotating shaft and a mechanical component. Here's how they work:
1) Welding to a Component – The hub is welded to a sprocket, pulley, or gear, forming a rigid connection.
2) Fitting onto a Shaft – The hub is then mounted onto a shaft, often using a keyway and set screw for additional security.
3) Transmitting Torque – The welded hub ensures efficient torque transmission, allowing smooth and reliable operation in various machinery applications.
Weld-On Hubs Size
We can provide high-quality, precision-machined V, W, Y, and X series weld-on hubs. Available in round, stock, square, hexagon, and spline bore weld-on hubs.
Differences Between Weld-On Hubs and Other Types of Hubs
| Feature | |||
| Attachment Method | Welded directly to component | Use a taper bushing | Uses a split bushing with bolts |
| Strength | Very strong, permanent | Secure but removable | Secure and easily replaceable |
| Ease of Installation | Requires welding | Requires bolting and alignment | Quick installation and removal |
Common Use Cases | Heavy-duty applications, permanent setups | Moderate-duty, flexible setups | Application requiring frequent component replacement |
Weld-on hubs are preferred in applications with a permanent and extremely strong connection. While other hubs provide flexibility for removal and replacement, weld-on hubs ensure that components remain securely attached under high-load and high-speed conditions.
Applications of Weld-On Hubs
One of the biggest advantages of weld-on hubs is their compatibility with multiple power transmission components:
✅ Sprockets – Used in chain-driven systems to drive machinery.
✅ V-Belt Pulleys – Help transmit power using V-belts in motor-driven applications.
✅ Gears – Provide torque transmission in mechanical gear systems.
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CTS®-ChinaTransmissionS is a professional power transmission products supplier with over 14 years in the power transmission industry.
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