Bearings & Rotation Tools

Bearing selection, life calculation, and specification tools. L10 life per ISO 281, bearing fit tolerances, and vendor-neutral selection across SKF, Timken, NSK, NTN, and FAG catalogs.

Interactive Bearing Tools — free to use, no signup required.

Bearing Life Calculator (L10 / ISO 281)

Calculate basic and adjusted rating life for ball and roller bearings. Supports equivalent load calculation from radial + axial components, reliability factors, and contamination adjustments.

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Bearing Fit & Tolerance Calculator

Determine correct shaft and housing tolerances for bearing installations. ISO 286 tolerance recommendations with SVG tolerance band diagram and fit type assessment.

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Bearing Load Calculator

Calculate equivalent dynamic bearing load (P) for combined radial and axial loads per ISO 281. Supports kN, lbf, and kips.

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Bearing Speed Calculator

Calculate DN value and check speed limits for ball and roller bearings. Metric (mm) and imperial (in) bore input.

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Bearing Selection Wizard

Find the right bearing for your application. Filter by load, speed, bore size, and type across 123 standard designations.

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Elastomeric Bearing Pad Calculator

AASHTO LRFD elastomeric bearing pad design. Check compressive stress, shear strain, rotation, stability, and slip for plain and steel-reinforced pads.

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