DIN 51825 Lubricating greases K - Classification and requirements
ChangingA new edition or revision is being prepared. Check before you specify.
- Edition
- DIN 51825:2004-06
- Publisher
- DIN
- Part family
- Lubrication, vibration & balancing
- Reviewed
- 27 October 2026 · source checked
Is DIN 51825 still current?
Yes, but a revision is coming. It is still in use, but a revision is in progress. The current reference is DIN 51825:2004-06 (MechAtlas review: 27 October 2026). Check the publisher before you specify it.
What it covers
German classification and requirements for type K greases (rolling bearings, sliding surfaces).
Parts that use DIN 51825
- Lubricating grease (Germany (DIN), main)
Thickened oil (soap or non-soap thickener) used to lubricate bearings, gears, couplings and slides where oil would not stay.
KP2K-30
Grades: K greases with EP/temperature letters and NLGI number
2004-06; new edition project started 2026.
Official source
MechAtlas does not reproduce standards. Check the official edition at the publisher's page for DIN 51825 or the DIN store.
Open in MechAtlasCheck a drawing callout
Other lubrication, vibration & balancing standards
- DIN 51502 Replaced
Lubricant designation and marking (old single-part) - ISO 10816-7 Changing
Rotodynamic pump vibration (no 20816 part yet) - ISO 18436-2 Changing
Vibration analyst certification - ISO 20816-1 Changing
Vibration measurement and evaluation, general (replaced ISO 10816-1) - ISO 20816-3 Changing
Industrial machines >15 kW, 120–30 000 r/min (replaced 10816-3 and 7919-3) - ASTM D4950 Current
Automotive service greases - Classification - IS 7623 Current
Multipurpose industrial grease - ISO 13373-1/-2/-3 Current
Vibration condition monitoring - ISO 14694 Current
Industrial fan balance and vibration - ISO 17359 Current
Condition monitoring, general guidelines - ISO 20816-2/-4/-5/-8/-9 Current
Vibration of turbines, hydro, compressors, gear units etc. - ISO 2137 Current
Grease cone penetration test