Page 121 - Rollingbearings

Selecting a suitable grease

Table 6

Compatibility of base oil types
Mineral oil Ester oil Poly glycol Sili cone- Sili cone- Poly phenyl- PFPE
methyl phenyl ether

Mineral oil + + – – + o –
Ester oil + + + – + o –
Polyglycol – + + – – – –

Silicone-methyl – – – + + – –
Silicone-phenyl + + – + + + –
Polyphenylether o o – – + + –
PFPE – – – – – – +

+ compatible
- incompatible
o individual testing required
Lubrication

Table 7
B.4
Compatibility of thickener types
Lithium Calcium Sodium Lithium Calcium Sodium Barium Aluminium Clay Polyurea
soap soap soap complex complex complex complex complex
soap soap soap soap soap

Lithium soap + o – + – o o – o o
Calcium soap o + o + – o o – o o
Sodium soap – o + o o + + – o o
Lithium complex soap + + o + + o o + – –
Calcium complex soap – – o + + o – o o +
Sodium complex soap o o + o o + + – – o
Barium complex soap o o + o – + + + o o
Aluminium complex soap – – – + o – + + – o
Clay o o o – o – o – + o
Polyurea o o o – + o o o o +

+ compatible
- incompatible
o individual testing required

119