What is the most common fastener combination used to attach a motor to a bedplate?

The most common fastener combination used to attach a motor to a bedplate typically involves a hex head bolt accompanied by two flat washers, a lock washer, and a nut. This combination is selected for its reliability and strength in securing heavy machinery, such as motors, to their mounting surfaces.

Using a hex head bolt allows for easy application of torque, ensuring that the bolt is sufficiently tightened. The two flat washers help distribute the load and prevent damage to the motor and bedplate surfaces. A lock washer is included to prevent the fastener from loosening over time due to vibrations, which are common in motor applications. Finally, the nut serves to secure the bolt in place, completing the fastening assembly effectively.

Other combinations, while they may serve specific purposes, do not provide the same level of security and ease of installation that this four-component assembly does. For instance, round head screws or flat head bolts may not offer the same strength or accessibility when adjustments or maintenance are needed. Similarly, using a stud with a locking nut is less common for direct motor attachment due to the additional complexity and potential for misalignment that can result from using separate fasteners in these scenarios.