What is a Drive Rod?

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A drive rod is used in torque applications to deliver the power created by the motor through the motor head. The drive rods are the process element that actually performs the transfer of torque supplied from the engine to the power. Drive rods are used whenever the motive force of an engine is to be transferred to another medium, such as a sequence of gears that rotates a shaft or a device that is extended away from the engine.

Since the distance between the motor and the device and the power of the motor determines how much power is transferred to the device, it is imperative that the drive rod be manufactured in a way that avoids any twisting or “sagging” in the torque transfer process. . Any twist allows for a drastic reduction in the amount of power delivered by the drive rod. As a result, most transmission rods are hollow tubes because they prevent any twisting or bending in the transmission rods unless a large amount of force is applied.

Depending on the amount of power supplied and the application for which the rod is being used, the rod itself can be manufactured from heat-treated steel or an alloy that meets the usage requirements. The design and material that the drive rod is made of directly determine the amount of torque the rod is able to withstand. If the amount of energy is sufficient to turn the drive rod, but not enough to work the drive point, the drive rod will often absorb the energy created by the driving force and twist, break, or damage the connection points on the drive. driving force and the trigger point.

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Transmission rods also vary in length depending on the application for which they are designed. The necessary distance that the power transfer from the prime mover must travel to successfully transfer power to the drive point is also critical when designing the rods. Also, the space between the motor turning the rod and the drive point to which the device is attached determines how much force the motor must provide to the drive rod to turn the drive point with sufficient force for the application.

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