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Clean High-
temperature

NSK Grease LGU Reference no. : NSK GRS LGU
Quantity: 80 g Tube color: Yellow

Feature This is a proprietary urea grease of NSK featuring low dust emission exclusively for ball screws and
linear guides which are used in clean rooms.
In comparison with fluorine base grease, which has been used commonly in clean rooms, LGU has
better lubricating property, longer duration of lubricant, better torque variation, much better anti-rust
property, and equivalent or better dust emission. In addition, this grease can be handled in the same
way as the other common grease because high-grade synthetic oil is used as the base oil.
LGU grease contains much less metallic elements compared to LG2 grease. It can be used in high
temperature environment.

Application This is exclusive lubrication grease for ball screws and linear guides that are installed in equipment that
requires cleanliness, as same as LG2 grease, and it can be used in high temperature range.
* Wash the linear guide and ball screws to remove oil prior to applying Clean Grease LGU, so the

grease functions are fully utilized.
* Clean grease is exclusively used for clean environments under normal pressure.

Range of use temperature

-30 to +120ºC

Properties Thickener Diurea
Base oil Synthetic hydrocarbon oil
Consistency 209
Dropping point 260ºC
Volume of evaporation 0.09% 99ºC, 22 hr
Copper plate corrosion test Satisfactory Method B, 100ºC, 24 hr
Oil separation 0.6% 100ºC, 24 hr
Base oil kinematic viscosity 100 mm2/s 40ºC

Superb low torque, low friction as well as LG2

Sample: Ball screw Test condition
Stroke
Shaft diameter 20 mm 700 mm
Lead 10 mm

Torque characteristics of ball screw

30

m Fluorine grease B