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Torque Formula:
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The bolt torque formula calculates the torque required to properly tighten a bolt or fastener. It considers the torque coefficient, applied force, and distance from the pivot point to provide accurate torque values for mechanical applications.
The calculator uses the torque formula:
Where:
Explanation: The formula calculates the rotational force (torque) required based on the coefficient of friction, applied linear force, and the lever arm distance.
Details: Accurate torque calculation is crucial for proper bolt tightening, preventing under-tightening (which can cause loosening) and over-tightening (which can damage threads or cause bolt failure).
Tips: Enter the torque coefficient (K), applied force in Newtons (F), and distance in meters (d). All values must be positive numbers greater than zero.
Q1: What is the typical range for torque coefficient K?
A: The torque coefficient typically ranges from 0.15 to 0.30 for most standard bolt applications, depending on surface finish and lubrication.
Q2: Why is accurate torque measurement important?
A: Proper torque ensures joint integrity, prevents bolt fatigue failure, and maintains consistent clamping force in mechanical assemblies.
Q3: How does lubrication affect torque calculations?
A: Lubrication reduces the torque coefficient (K), meaning less torque is required to achieve the same clamping force compared to dry threads.
Q4: What units should be used for accurate calculations?
A: For consistent results, use Newtons for force and meters for distance to get torque in Newton-meters (Nm).
Q5: Can this calculator be used for all bolt types?
A: While the basic formula applies to most bolts, specialized applications may require additional factors or specific torque formulas.