Recommended Oil Viscosity for EHD Lubrication

Nominal diameter [mm]

Mean Speed [rpm]

Viscosity u1 [mm2/s]

Lubricant temperature [°C]

Viscosity grade ISO VG

Actual viscosity u [mm2/s]

up to 16

10

approx. 3000

30

680

approx. 3000

-

50

500

35

320

500

-

200

180

40

220

220

-

500

70

45

100

80

-

1000

40

50

68

42

-

2000

28

55

68

35

20 to 32

10

approx. 1200

30

460

approx. 1200

-

50

350

35

320

500

-

200

120

40

150

150

-

500

50

45

68

50

-

1000

30

50

46

30

over 40

10

approx. 900

30

320

approx. 900

-

50

250

35

220

300

-

200

80

40

100

100

-

500

35

45

46

35