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Physics

Bearing L10 Life and Load Rating Calculator

August 26, 2026 by Sam Gorman

Calculate bearing L10 operating life or the minimum dynamic load rating C needed for a target life.

Categories Physics

Torque-Angle Bolt Tightening and Turn-of-Nut Calculator

August 26, 2026 by Sam Gorman

Convert post-snug bolt rotation between turns and degrees, keep snug torque separate, and calculate ideal thread advance from US TPI.

Categories Physics

Multi-Conductor Cable Weight, Length and Drum Capacity Calculator

August 26, 2026 by Sam Gorman

Check cable reel capacity, fit margin, cable net weight, and loaded-reel gross weight from cable data and reel dimensions.

Categories Physics

Bolt Torque, Preload and Clamp Force Calculator

August 26, 2026 by Sam Gorman

Estimate bolt preload from torque or torque from target preload for common inch fasteners, with a simplified proof-load check.

Categories Physics

Water Hammer Surge Pressure and Valve Closure Time Calculator

August 26, 2026 by Sam Gorman

Estimate water hammer surge pressure, closure timing, total pressure, and margin below the lowest component pressure rating.

Categories Physics

Condensate Return Pipe Size and Flash Steam Velocity Calculator

September 13, 2026August 26, 2026 by Sam Gorman

Size or check a condensate return pipe using load, pressure, flash steam, pipe schedule, and a velocity target.

Categories Physics

Steam Trap Condensate Load and Required Capacity Calculator

August 26, 2026August 26, 2026 by Sam Gorman

Calculate steam trap capacity in lb/h, minimum pressure difference in psid, and check a candidate rating at the same chart pressure.

Categories Physics

Orifice Plate Flow Rate and Differential Pressure Calculator

September 18, 2026August 26, 2026 by Sam Gorman

Estimate liquid flow from orifice plate DP, or find required DP for target flow using actual pipe ID, bore, density, and coefficient.

Categories Physics

Pump VFD Energy Savings and Payback Calculator

August 26, 2026August 26, 2026 by Sam Gorman

Estimate pump VFD energy savings, optional demand-charge savings, and simple payback from measured kW or motor nameplate data.

Categories Physics

Pump System Curve and Operating Point Calculator

August 26, 2026August 26, 2026 by Sam Gorman

Find a centrifugal pump operating flow and head from pump curve points and either a known design point or pipe data.

Categories Physics
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Advertiser disclosure: LumenCalculator.com is an independent, advertising-supported calculator site. Display ads may be served by partners such as Google. We may earn revenue from ads. Advertising does not influence calculator outputs.

About these calculators: Tools provide educational estimates based on formulas and common assumptions. Results are illustrative and may not match real-world components, tolerances, and environmental conditions. Verify against datasheets, standards, and professional guidance where relevant.

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