The 1008 taper lock bushing is a key component in power transmission systems, renowned for its versatility and reliability. Designed to fit shaft sizes ranging from 1/2 inch to 1-3/16 inches, the 1008 taper lock bush securely connects shafts to components like pulleys, sprockets, and gears. Its tapered design ensures a tight grip on the shaft, minimizing slippage and maximizing power transmission efficiency. Manufactured with precision engineering and high-quality cast iron materials, the 1008 taper lock bushing offers exceptional durability and resistance to wear and corrosion. Easy to install and remove without damaging the shaft, it provides a cost-effective solution for a wide range of industrial applications, including conveyor systems, agricultural machinery, and industrial equipment.
1008 Taper Lock Bushing Dimensions
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| Bushing Number: | 1008 | |
| Dimensions(in): | A | 1.386 |
| B | 7/8 | |
| Bolt Circle: | 1-21/64 | |
| Installation Screws (UNC): | Thread Dia. (in) | 1/4 |
| Length (in) | 1/2 | |
| Stock Bore Range(in): | Min. | 1/2 |
| Max. | Standard Keyway 7/8 Shallow Keyway 1 |
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| Wrench Torque (in-lbs): | 55 | |
| Torque Application Capacity(in-lbs): | 1,200 | |
| Approx.Weight(lbs): | 0.2-0.3 | |
Advantages of 1008 Taper Lock Bushings
The 1008 taper lock bushing offers several advantages, making it a popular choice in various industrial and mechanical applications. Here's a breakdown of its key benefits:
- Ease of Installation and Removal: The design of the 1008 taper lock bushing allows for quick and straightforward mounting and dismounting. It fits flush into compatible sprockets or pulleys and uses a tapered wedging action to grip the shaft securely, eliminating the need for complex tools or machining.
- Secure Shaft Connection: With its 8-degree taper, the bushing provides a tight, reliable clamp onto the shaft—often described as equivalent to a “shrink fit.” This ensures strong torque transmission and minimizes slippage, even under demanding conditions.
- Compact Design: The 1008 bushing has a relatively short length-thru-bore (0.8 inches) and a maximum bore size of 1.0 inch, which keeps the center of the load small. This reduces overhung loads and allows for shaft mounting close to bearings, enhancing stability and efficiency.
- Versatility: Available in both imperial (1/2″ to 1″) and metric (14mm to 25mm) bore sizes, the 1008 bushing is adaptable to a wide range of shaft diameters and applications, such as roller chain sprockets, pulleys, and couplings in industries like agriculture and manufacturing.
- Durability: Typically made from steel with a black oxide coating, or sometimes precision cast iron, the bushing is robust and resistant to wear, cracking, and breaking, ensuring long-term reliability with minimal maintenance.
- Smooth Operation: The even clamping force provided by the taper lock mechanism contributes to the efficient and smooth functioning of the machinery, reducing vibration and noise in systems with rotating or sliding shafts.
Taper Lock Bushings vs. Split Taper Bushings
Taper Lock Bushings and Split Taper Bushings are both mechanical components used to mount pulleys, sprockets, or other components onto a shaft, but they differ in design and application.
Taper Lock Bushings
- Design: A Taper Lock Bushing is a single-piece, flanged component with a tapered bore. It has a keyway and typically two threaded holes for set screws. The outer surface is also tapered to match a corresponding taper in the hub of the component being mounted (e.g., pulley or sprocket).
- Installation: The bushing is inserted into the hub, and as the screws are tightened, the taper forces the bushing to contract inward, gripping the shaft tightly. The flange provides a secure mounting point.
- Advantages:
- Easy to install and remove (no need to disassemble the entire setup).
- Provides a strong, concentric grip on the shaft, reducing vibration and wear.
- Reusable and adjustable.
- Disadvantages:
- Requires precise machining of the hub to match the taper.
- Limited to specific shaft sizes based on the bushing's bore range.
- Common Uses: Widely used in industrial applications like conveyor systems, pumps, and fans where quick installation and removal are beneficial.
Split Taper Bushings
- Design: A Split Taper Bushing features a split along its length, allowing it to compress more easily around the shaft. It also has a tapered outer surface and usually includes a flange with multiple screw holes. The split design makes it distinct from the solid Taper Lock.
- Installation: The bushing is placed into the hub, and as the screws are tightened, the split allows it to clamp tightly onto the shaft while the taper ensures a snug fit with the hub.
- Advantages:
- Offers greater clamping force due to the split design, making it ideal for high-torque applications.
- More forgiving of slight shaft size variations because of its ability to compress.
- Provides excellent concentricity and balance.
- Disadvantages:
- Slightly more complex to install or remove compared to Taper Lock bushings.
- May not be as reusable if the split becomes deformed over time.
- Common Uses: Common in heavy-duty machinery, such as large motors, crushers, or agricultural equipment, where higher torque transmission is required.
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| Taper Lock Bushings | Split Taper Bushings |