ISO 281 Rolling bearing rating life
ChangingA new edition or revision is being prepared. Check before you specify.
- Edition
- ISO 281:2007
- Publisher
- ISO
- Part family
- Bearings
- Reviewed
- 23 October 2026 · source checked
Is ISO 281 still current?
Yes, but a revision is coming. It is still in use, but a revision is in progress: 3rd ed. passed DIS on 21 May 2026, going to FDIS. The current reference is ISO 281:2007 (MechAtlas review: 23 October 2026). Check the publisher before you specify it.
What it covers
Dynamic load rating and rating life calculation framework.
Edition research: 2007, replacement at FDIS stage
- Material
- Bearing steel
- Typical application
- General machinery
- What you specify
- Bearing type; dynamic load; speed
- Watch out
- Life estimates depend on loading and operating assumptions.
Equivalent and related standards
| Standard | Relationship | Note |
|---|---|---|
| DIN ISO 281 | Identical adoption | |
| ABMA 9-2015 (R2020) | Similar purpose — not interchangeable without an engineering check |
“Similar” never means interchangeable without an engineering check.
Parts that use ISO 281
- Rolling bearing (deep groove ball bearing) (ISO / EN, related)
Standard radial rolling bearing on motor, pump, fan and gearbox shafts; carries radial and some axial load.
Dynamic load rating and L10 life; under revision.
Official source
MechAtlas does not reproduce standards. Check the official edition at the publisher's page for ISO 281 or the ISO store.
Open in MechAtlasCheck a drawing callout
Other bearings standards
- ISO/TS 16281 Replaced
Advanced rating life calculation - ISO 15243 Changing
Bearing damage and failure terms and causes - ISO 5753-1 Changing
Radial internal clearance - ISO 76 Changing
Static load ratings - ANSI/ABMA 20 Current
Metric radial ball and roller bearings - ANSI/ABMA 4 Current
Tolerance definitions and gauging - ANSI/ABMA 8.2 Current
Locknuts, sleeves, locking devices (inch) - ANSI/ABMA 9 Current
Load ratings and fatigue life for ball bearings - DIN 5415 Current
Rolling bearings - adapter sleeves - DIN 625-1 Current
Radial deep groove ball bearings, single row - DIN 736 Current
Plummer block housings for diameter series 2 bearings - DIN 737 Current
Plummer block housings for diameter series 3 bearings