QD Type Weld-On Hubs
QD Type Weld-On Hubs
QD Type weld-on hubs are a type of weld-on hub that is specifically designed for use with QD bushings. QD bushings are a type of self-aligning bushing that is commonly used in conveyor systems. The QD Type weld-on hubs have a machined recess that is specifically designed to accept a QD bushing. This allows the hub to be easily and securely welded to the shaft of a conveyor pulley.
QD Type weld-on hubs are available in a variety of sizes to accommodate different shaft diameters and bushing sizes. They are also available in a variety of materials, including steel, aluminum, and stainless steel.
QD Type weld-on hubs are a versatile and reliable way to connect a conveyor pulley to a shaft. They are easy to install and maintain, and they provide a secure and long-lasting connection.
QD Type Weld-On Hubs Size Chart:
| Catalog Number | Dimensions (Inches) | Type Drilling | Weight Pounds | |||||
| D | L | B | P | L1 | BC | |||
| JA-A | 2.25 | 9⁄16 | 1.375 | – | – | 1 21⁄32 | 1 | 0.4 |
| SH-A | 3 | 13⁄16 | 1.871 | – | – | 2 1⁄4 | 1 | 1 |
| SDS-A | 3.5 | 3⁄4 | 2.188 | – | – | 2 11⁄16 | 1 | 1.25 |
| SK-A | 4.375 | 1 1⁄4 | 2.813 | – | – | 3 5⁄16 | 1 | 3 |
| SF-A | 5.000 | 1 1⁄4 | 3.125 | – | – | 3 7⁄8 | 1 | 4 |
| E-A | 6.250 | 1 5⁄8 | 3.832 | – | – | 5 | 1 | 9 |
| F-A | 7.000 | 2 1⁄2 | 4.437 | – | – | 5 5⁄8 | 1 | 16 |
| J-A | 7.750 | 3 3⁄16 | 5.140 | – | – | 6 1⁄4 | 1 | 22.5 |
| M-A | 9.500 | 5 5⁄16 | 6.494 | 9.25 | 3 9⁄16 | 7 7⁄8 | 2 | 50 |
| N-A | 10.5 | 6 1⁄4 | 6.99 | 10.25 | 4 1⁄2 | 8 1⁄2 | 2 | 75 |
| P-A | 13 | 7 1⁄4 | 8.24 | – | – | 10 | 2 | 155 |
| W-A | 15.5 | 9 | 10.437 | – | – | 12 3⁄4 | 2 | 300 |
| S-A | 19.5 | 12 | 12.125 | 18.75 | 7.5 | 15 | 2 | 558 |
QD Type Weld-On Hubs Advantages:
QD Type weld-on hubs, also known as QD (Quick Disconnect) weld-on hubs, offer several advantages in certain applications. Here are some of the advantages of QD Type weld-on hubs:
1. Easy Installation: QD Type weld-on hubs are designed for easy and quick installation. They can be easily welded onto a shaft or component without the need for complex machining or additional fasteners. This makes them a convenient choice for applications where time and labor are a concern.
2. High Torque Transmission: QD Type weld-on hubs provide a strong and rigid connection between the shaft and the hub. The welding process ensures a secure bond, which allows for efficient torque transmission. This is particularly beneficial in high-torque applications where slip or movement between the hub and the shaft is undesirable.
3. Space Saving: QD Type weld-on hubs have a compact design, which helps to save space in applications where there are limitations on available mounting space. Their small footprint allows for a more streamlined and efficient system design.
4. Versatility: QD Type weld-on hubs are available in various sizes and configurations to accommodate different shaft diameters and applications. They can be used with a wide range of power transmission components, such as pulleys, sprockets, gears, and couplings. This versatility makes them suitable for diverse industrial applications.
QD Weld-On Hubs Vs Taper Bore Weld-On Hubs:
QD weld-on hubs and taper bore weld-on hubs are two types of weld-on hubs that are commonly used in rotating equipment. They both have their own advantages and disadvantages, and the best type of bushing hubs for a particular application will depend on the specific requirements of that application.
QD weld-on hubs are typically made of steel and have a flanged bore that accepts a QD bushing. QD bushings are very precise and can be easily aligned, making them a good choice for applications where there is a need for accurate alignment. QD weld-on hubs are also relatively easy to install and remove, which makes them a good choice for applications where the hub needs to be frequently replaced or serviced. However, QD weld-on hubs are not as strong as taper bore weld-on hubs, and they are not as well-suited for applications where there is a lot of vibration or shock.
Taper bore weld-on hubs are also made of steel, but they have a tapered bore that accepts taper lock bushing. Taper lock bushings are more secure than QD bushings, and they can withstand higher torque loads and vibration. This makes taper bore weld-on hubs a good choice for applications where there is a lot of vibration or shock. However, taper lock bushings are not as precise as QD bushings, and they can be more difficult to align. Tapered bore weld-on hubs are also more difficult to install and remove than QD weld-on hubs.
In general, QD weld-on hubs are a good choice for applications where there is a need for accurate alignment and ease of installation and removal. Taper bore weld-on hubs are a good choice for applications where there is a lot of vibration or shock and where high torque loads need to be sustained.
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| QD Weld-On Hubs | Taper Bore Weld-On Hubs |
Edited by Yjx