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Rotating equipment / lubrication

Lubricant Selector — grease / oil

Reference tool, not a substitute
for OEM manual or lubricant supplier data
Recommendation ● live

Reference catalog

Browse by type — every oil / grease class

Catalog entry ● reference

Reference standards

ASTM test methods — property, wear, friction

1. Fundamental physical properties

D2422
Viscosity classification
Categorizes industrial fluid lubricants by ISO viscosity system grade.
D2270
Viscosity index
Evaluates how much oil viscosity changes across operating temperature.
D97
Pour point
Lowest temperature at which the oil will still flow.

2. Anti-wear and load-carrying capacity

D4172
Four-ball wear
Wear-preventive characteristics under sliding metal-on-metal contact.
D2783
Four-ball extreme pressure
Load-carrying properties — seizure and weld points under heavy load.
D2782
Timken EP method
Extreme-pressure load capacity via block-and-ring geometry.
D2670 / D3233
Falex pin and vee block
Ranks wear and load failure limits under rotating pin loads.

3. Friction and environmental factors

D6425
SRV test machine
High-frequency linear oscillation friction and wear under boundary lubrication.
D5182
Scuffing load capacity (FZG)
Assesses gear oil scuffing protection.
D130
Copper corrosion
Detects corrosive sulfur compounds via copper strip discoloration.
D1401
Water demulsibility
Measures how readily the oil separates from water.

Cross-check before mixing

Grease compatibility — thickener vs thickener

Compatibility result ● reference