Bearing life and lubrication, vibration, bolt torque, shaft alignment, ISO 286 fits, tap drills and V-belts.
Calculate the L10 basic rating life and modified life Lnm of ball and roller bearings per ISO 281, with equivalent load, service factor, reliability (a1), aISO factor and static safety.
ISO 281, equivalent load, hoursClassify vibration of motors, pumps and fans into ISO 20816-3 and ISO 10816-1 zones A, B, C and D, convert displacement, velocity and acceleration, and project when the trend reaches the alarm.
ISO 20816, in/s RMS, zones A to DCalculate tightening torque and preload for metric and UNC bolts by ISO 898-1 and SAE J429 grades, with nut factor K or VDI 2230 friction coefficients, and see the preload scatter and the load the joint carries without opening or slipping.
Preload, SAE J429, ISO 898-1Calculate front and rear foot shims and horizontal moves for the motor from offset and angular misalignment, with thermal growth target and tolerances by speed.
Shims, offset, angularity, toleranceFind how often to regrease a rolling bearing, how much grease to apply, the initial fill, the required viscosity ν1 (ISO 281) and the κ ratio of the grease base oil.
Interval, grease grams, κCompute ISO 286 hole and shaft deviations and limits (H7, g6, k6, p6 and more) up to 500 mm, maximum and minimum clearance or interference, fit type, and compare preferred fits, in mm or inches.
H7/g6, k6, clearance, interferencePick the drill for cutting and forming taps on metric coarse and fine, UNC and UNF threads, see the percentage of thread, the 6H/2B minor diameter and the blind hole depth.
Drill, % thread, 2B, blind holeDesign a V-belt drive (SPZ, SPA, SPB, SPC, A, B, C): pulley diameters, exact and stock belt length, center distance, arc of contact, number of belts with service factor and deflection force for tensioning.
Length, number of belts, tensionImportant notice: Indus Metrics tools produce estimates and pre-sizing results from the data you enter and from published engineering methods. They do not replace design, calculations or reports signed by a licensed professional engineer (PE), nor verification against the applicable codes, standards and regulations, such as OSHA rules and the ASME codes. Material and fuel properties vary: check manufacturer data or your own process analyses before deciding. By using this site you agree to the Terms of Use.
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