Breakloose Torque
Breakloose torque, also called breakout torque, refers to the amount of torque required to overcome the initial static friction or resistance when loosening or breaking free a fastener, such as a bolt or nut, that has been tightened or is stuck. When a fastener is tightened, it creates a clamping force that holds the components together. This clamping force creates friction between the threads of the fastener and the mating surfaces. Breakloose torque is the torque needed to overcome this friction and initiate the motion required to loosen or unfasten the fastener.
Breakloose torque can depend on various factors, including the type of fastener, the condition of the threads, the lubrication present, and the amount of force applied perpendicular to the fastener. Additionally, factors such as rust, corrosion, or thread damage can increase the breakloose torque required.
It's important to note that once the fastener starts to move, the torque required to continue turning it may be lower than the initial breakloose torque. This is because the friction reduces as the fastener begins to rotate. Breakloose torque is relevant in various industries and applications, such as automotive, machinery maintenance, and construction, where fasteners are commonly used and may need to be loosened or removed for repairs, maintenance, or replacements.
Tags: Torque