Understanding Bolt Preload
Bolt preload is the tension created when a fastener is tightened. The joint is held by clamp force, not simply by the bolt resisting sideways movement. Friction has a major effect on torque-to-preload accuracy.
Read guideChoosing Cutting Speed
Cutting speed depends on work material, tool material, coating, rigidity, coolant and desired tool life. Start from reputable tooling data, then tune conservatively.
Read guideMetric vs Imperial Threads
Metric threads are described by nominal diameter and pitch. Unified threads are usually described by diameter and threads per inch. Similar-looking fasteners may not be compatible.
Read guideMaterial Density Guide
Density converts geometric volume into mass. Use the correct alloy value where weight matters because published generic values are approximations.
Read guideHydraulic Pressure Explained
Pressure acting over piston area produces force. Real output is lower because of friction, pressure loss and return-side pressure.
Read guideVoltage Drop Explained
Cable resistance causes voltage loss and heat. Longer runs, higher current and smaller conductors increase drop.
Read guideEngineering Tolerances
A dimension without a tolerance is incomplete. Functional fits, process capability, inspection method and temperature all affect an acceptable limit.
Read guide