SYMBOL FILLING VOLUME (%) OPERATING CONDITION
SPEED LOAD
M 70+-10 LOW HEAVY
S 50+-10 LOW HEAVY
G 40+-10 MED MED
L 30+-10 MED MED
Q 25+-5 MED MED
K 20+-5 HIGH LIGHT
X 10+-5 HIGH LIGHT
LUBRICATING OIL LUBRICATING GREASE
Rotating speed Low-medium-high speed Low medium speed
Lubricant Efficiency Excellent Good
Cooling effect Good None
Torque Comparatively low Comparatively high
Lubricant life Long Comparatively short
Lubricant Replacement Easy Difficult
Lubricant Leakage Should not be used where oil leakage is
unacceptable
Little grease leakage
Impurities Filtration Easy Difficult
Sealing equipment Complex Simple
OPERATING TEMP. OF BEARING
(C)
dn ISO VISCOSITY
GRADE OF LUBRICATING OIL (VG)
MEDIUM LOAD HEAVY LOAD/ SHOCK LOAD
-30 ~ 0 UP TO PERMISSIBLE ROTATING SPEED 15,22,32 32,46
0 ~ + 60 UP TO 15000 32,46,68 100
15000 ~ 80000 32,46 68
80000 ~ 150000 22,32 32
150000 ~ 500000 10 22,32
+ 60 ~ +100 UP TO 15000 150 220
15000 ~ 80000 100 150
80000 ~ 150000 68 100,150
150000 ~ 500000 32 68
+100 ~ + 150 UP TO PERMISSIBLE ROTATING SPPED 320