Brand
Lubricant type
Mobil
DTE Heavy Medium
Phillips 66
Turbine Oil VG68
MM motor oil SAE 20-20W
HDS motor oil SAE 20-20W
Gulf
Harmony 68
Dow Corning
High Vacuum Grease, NSF 61 compliant label
MOLYKOTE from Dow Corning 111, NSF 61 compliant label
Loctite
565 thread locker, NSF 61 compliant label
6.2.2 Lubricating-grease requirements
Precautions
NOTICE:
•
Avoid equipment damage or decreased performance. Never mix greases of different con-
sistencies (NLGI 1 or 3 with NLGI 2) or with different thickeners. For example, never mix
a lithium-based grease with a polyurea based grease. If it is necessary to change the
grease type or consistency, remove the rotor and old grease from the housing before re-
greasing.
Bearing temperature
Bearing temperatures are generally about 25°C | 45°F greater than bearing-housing outer sur-
face temperatures.
This table shows the type of grease required for the operating temperature of the pump.
Bearing temperature
Type of grease
-15°C to 110°C | 5°F to 230°F Use a lithium-based mineral-oil grease with a consistency of NLGI 2.
Exceed 110°C | 230°F
Use a high-temperature grease. Mineral-oil greases should have oxidation stabilizers
and a consistency of NGLI 3.
Grease recommendations based on temperature
This table shows which brand of grease to use when lubricating the pump.
Brand When temperature of pumped fluid is less than 110°C
| 230°F NLGI consistency 2
When temperature of pumped fluid is greater
than110°C | 230°F NLGI consistency 3
Mobil
Mobilux EP2
N/A
Exxon Unirex N2
Unirex N3
Sunoco Mutipurpose 2EP
N/A
SKF
LGMT 2
LGMT 3
Texaco Multifak 2
N/A
Shell
Alvania 2 EP Grease 2
N/A
Grease amounts
Frame
Initial grease in grams | ounces
Regrease
1
in grams | ounces
Thrust (angular contact) Radial (cylindrical roller) Thrust (angular contact) Radial (cylindrical roller)
S
185 | 7
6 (165)
70.0 | 2.5
70.0 | 2.5
6.2 Bearing maintenance
Models 3180, 3181, 3185, and 3186 Installation, Operation, and Maintenance Manual
73