Knowing how to use a product correctly can significantly impact its performance and lifespan. For instance, proper maintenance of cast iron pans ensures they last longer. Similarly, understanding the factors that influence motor life is the first step toward maximizing its longevity and reducing long-term costs. **What Does "End of Life" Mean?** In general, end of life refers to when a product no longer functions as intended. But what does that really mean in practice? End of life occurs when the motor can no longer meet its specified performance metrics—such as speed, torque, or accuracy. This doesn’t necessarily mean the motor is completely broken; it just means it’s not performing to its original standards. If a motor fails to meet these specifications, it can no longer fulfill its intended purpose, making it effectively "dead" for the user. As a motor approaches the end of its life, wear and tear cause a decline in both torque and speed. **What Are the Main Factors That Affect Motor Life?** The lifespan of a motor often depends on the first component that fails. The three most common components prone to failure are bearings, gears, and circuitry such as drivers and controllers. **Bearings** Bearings are crucial components that reduce friction and support the rotor and shaft within a motor. If damaged, they can stop the motor from functioning entirely. Bearings are typically rated based on grease life, which is heavily influenced by temperature. Exceeding load limits—like radial or axial loads—can also shorten their lifespan. Motors with long-life grease can operate for up to 10,000 hours. A rise in temperature can drastically reduce bearing life. For example, a 15°C increase in temperature can cut bearing life in half. It's essential to manage both mechanical and electronic temperatures to extend motor life. **Gears** Gears are used to adjust speed and torque in a motor system. They transfer force directly and can wear out over time, especially under heavy or impact loads. When gears become worn, the motor may still function, but issues like backlash and noise can arise, affecting overall performance. **Circuit Products** Circuit products, such as drivers and controllers, play a key role in motor operation. Components like electrolytic capacitors within these systems are vulnerable to high temperatures, which can lead to failure. The lifespan of these components is largely determined by the life of the capacitor inside them. **How Can Heat Be Controlled?** Controlling heat is vital to extending motor life. There are two main approaches: cooling the heat source or reducing the amount of heat generated. Cooling methods include using fans, heat sinks, or mounting motors on larger metal plates. Reducing operating temperature not only extends bearing life but also increases the motor's duty cycle. Another way to manage heat is by minimizing energy loss. High-efficiency motors or continuous-duty motors can help reduce heat generation. For stepper and servo motors, lowering the current can also reduce temperature, though it must be balanced with maintaining sufficient torque. **Conclusion** Understanding the factors that affect motor life is essential for maximizing performance and cost efficiency. Proper heat management, choosing the right components, and following manufacturer guidelines can all contribute to longer-lasting, more reliable motor systems. If you're interested in cooling solutions, high-efficiency motors, or ways to optimize current usage, our technical support team is here to help. Feel free to reach out with any questions or specific needs. For more detailed information on how temperature affects service life, rated life for different products, and how to calculate motor life, check out the technical reference section of our catalog. You can download a PDF guide here: [Learn More About Service Life (PDF)](http://bsg-i.nbxc.com/blog/392581b92c5be34b949fac3f75f05985.png)

Tower Crane

The tower crane is a fixed Crane and has to be mounted On-Site. The Tower Crane presents itself like a vertical metallic structure having a horizontal boom that can turn over an angle up to 360°. From his particular set up, the tower crane is ideal for all king of a high building or high structure construction.

Tower crane includes hammerhead tower crane, Flat Top Tower Crane, luffing type tower crane. Derrick Crane is installed on a stationary foundation.


Tower crane is a common form in urban construction sites. This kind of crane is anchored on the ground, provides an optimum blend of height and lifting capability, which is usually used for building multi-storey city building. Two horizontal jibs jut from center tower, one used lift heavy objects, another is equipped with concrete blocks as a counter weight. Tower cranes are controlled by a driver who either sits in a small cabin at the top of the tower or operates the crane from the ground using a remote control system.

A tower crane is an inverted L-shaped structure that is capable of lifting several tons of weight to precarious heights.
The most striking feature of this crane is that it is self-building and can allow a building to be constructed adjacent to or even around it.

We supply all kinds of tower crane spare parts with good quality, competitive price, short delivery and professional service.

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