Engineering modulebeta

Bearing Load Rating & Life (SKF / ISO 281)

Design standard

Calculation standard

Sets screening knobs for Indicative practice — not product type or catalog geometry

Basic rating life L₁₀ and static safety s₀ per ISO 281 / ISO 76. Use any bearing family.

Target SF 1.50Service factor 1.10

Reference standards

ISO 281ISO 76

Bearing copilot

Describe loads, speed, and life — ranks the catalog using ISO 281 / SKF rating life. Bearing module only; does not run shafts or housing.

Deterministic sizing — numbers come from PhyCalcPro solvers, not a language model.

SKF rating life (ISO 281:2007), ISO 76 static check, and multi-manufacturer catalog selection.

Project name

Step 1 of 4

Duty profile, bearing family, and reference geometry

Locating + floating pairs (MITCalc / SKF shaft design step 2).

Select the rolling bearing family — SKF bearing selection step 2.

Deep groove ball

Sealing: Open

Single bearing

Primary load: radial Fr (⊥ shaft axis)

Optional catalog filter only — does not change ISO 281 / SKF calculation method. Calculation standard comes from the application preset.

Application profile

Application

Reference documentation

Standards, catalogs, and technical write-ups relevant to this module.

Candidate strategy

Typical Auto-design directions for rolling bearings — compare light, balanced, and conservative sizing before committing to Validate.

Option	Basis	Pass	Tradeoff
Reference formula	Known equation	Use in report	Manual applicability
Unit conversion	SI base layer	Pass	Dimension must match
Linked module	Open calculator	Continue workflow	Requires module-specific input

Continue workflow

Typical next steps after Rolling bearings