2. Lubrication (1) NSK Grease AS2

1 2. Lubrication (1) NSK Grease AS2. There are two types of lubricating method -- Grease and Grease Lubrication It isFeatures an environmentally friendly and widely used Nature oil -- for ball screws, linear guides and monocarriers. Thickener Lithium soap base Grease Lubrication is widely used because it does not Grease for high load application. It is mineral oil Use a lubricant agent and method most suitable to Base oil mineral oil require a special oil supply system or piping. Grease based Grease containing lithium thickener and condition requirements and purpose to optimize Consistency 275. lubricants made by NSK are: several additives. It is superb in load resistance as functions of ball screws, linear guides and Dropping point 181 C. Various types of Grease in bellows tubes that can be well as stability in oxidization. It not only maintains monocarriers. good Lubrication over a long period of time, but also Volume of evaporation (99 C, 22 hr).

2 Instantly attached to a Grease pump;. In general, lubricants with low base oil kinematic demonstrates superb capability in retaining water. Copper plate corrosion test Satisfactory (Method B, 100 C, 24 hr). NSK Grease Unit that consists of a hand Grease viscosity are used for high-speed operation, in which Even containing a large amount of water, it does not Oil separation (100 C, 24 hr). pump and various nozzles. They are compact and thermal expansion has a large impact, and in low lose Grease when it is softened. Base oil kinematic viscosity 130 mm2/s (40 C). easy to use. temperatures. Lubrication with high base oil kinematic viscosity is Application It is a standard Grease for general NSK linear guides, 1. NSK Grease lubricants used for oscillating operations, low speeds and high ball screws and monocarriers. It is prevalently temperatures. used in many applications because of its high base Table shows the marketed general Grease widely The following are Lubrication methods using Grease oil viscosity, high load resistance, and stability in used for linear guides, ball screws and monocarrier and oil.

3 Oxidization. for specific uses, conditions and purposes. (2) NSK Grease LR3. It contains Features a special synthetic oil for high temperature and stability , and a carefully selected anti-oxidation agent. This Grease dramatically increases Lubrication Nature Table Grease lubricant for linear guides, ball screws and monocarriers Thickener Lithium soap base life under high temperature conditions. It is used Type Thickener Base oil Base oil kinematic viscosity Range of use Purpose Base oil Synthetic oil for high speed, medium load. Lubrication life mm /s (40 C) temperature ( C) Consistency 228. 2. exceeded 2 000 hours in the endurance test at 150 C. AS2 Lithium type mineral oil 130 10 110 For general use at high load Its rust prevention capacity in severe conditions Dropping point 208 C. such as water and moist environments is further Volume of evaporation (99 C, 22 hr). PS2 Lithium type Synthetic oil 50 110 For low temperature and high strengthened.

4 Copper plate corrosion test Satisfactory (Method B, 100 C, 24 hr). + synthetic frequency operation Application It is a standard Grease for ball screws PSS type Oil separation (100 C, 24 hr). Base oil kinematic viscosity 30 mm2/s (40 C). hydrocarbon oil LR3 Lithium type Synthetic oil 30 30 130 For high speed, medium (shaft dia. 15 mm or over), FSS type, FA type (except shaft dia. 10 mm with lead of 4mm and shaft dia. 12. load mm with lead of 5 mm) and VFA type. It is ideal for LG2 Lithium type mineral oil 32 20 70 For clean environment operation with medium load, at high speed such as + synthetic positioning in high tact material handling equipment. hydrocarbon oil LGU Diurea Synthetic 30 120 For clean environment (3) NSK Grease PS2. hydrocarbon oil NF2 Urea composite type Synthetic 26 40 100 For fretting resistance TheFeatures major base oil component is synthetic oil with Nature hydrocarbon oil Thickener Lithium soap base mineral oil.

5 It is an excellent Lubrication especially for Base oil Synthetic oil + Synthetic hydrocarbon oil low temperature operation. It is for high speed and Consistency 275. light load. Application Dropping point Volume of evaporation 190 C. (99 C, 22 hr). Other It is a standard Grease for NSK miniature linear Copper plate corrosion test Satisfactory (Method B, 100 C, 24 hr). guides and ball screws. It is especially superb for low temperature operation, but also functions well Oil separation (100 C, 24 hr). in normal temperatures, making it ideal for small Base oil kinematic viscosity mm2/s (40 C). equipment with light load. D13 D14. (4) NSK Grease LG2 lubricating property, longer duration of lubricant, better torque variation, much better anti-rust property, Nature 3. How to replenish Grease and volume of Grease to be replenished Thickener Diurea ThisFeatures Grease was developed by NSK to be exclusively and equivalent or better dust emission.

6 In addition, this Grease can be handled in the same way as the Base oil Synthetic hydrocarbon oil Use Grease fitting if exclusive Grease supply Consistency 288. used for linear guides and ball screws in clean room. other common Grease because high-grade synthetic Dropping point 260 C component is not used. Supply required amount Compared to the fluorine Grease which are commonly oil is used as the base oil. through Grease fitting by a Grease pump. Volume of evaporation (99 C, 22 hr). used in clean room, LG2 has several advantages such LGU Grease contains much less metallic elements Wipe off old Grease and accumulated dust before Copper plate corrosion test Satisfactory (Method B, 100 C, 24 hr). as: compared to LG2 Grease . It can be used in high supplying new Grease . If Grease fitting is not used or Oil separation (100 C, 24 hr). Higher in Lubrication function temperature environment. there is no oil filler due to the size limitation, apply Base oil kinematic viscosity 26 mm2/s (40 C).

7 Longer Lubrication life Grease directly to the rail or to the ball groove of the More stable torque (resistant to wear). Higher rust prevention. ThisApplication is exclusive Lubrication Grease for ball screws Precautions for handling screw shaft. Remove the seal if possible, move a ball slide or ball nut a few strokes so that the Grease In dust generation, LG2 is more than equal to fluorine and linear guides that are installed in equipment that Wash the linear guides and ball screws to remove permeates into the ball slide, nut and inside the Grease in keeping dust volume low. Since the base requires cleanliness, as same as LG2 Grease , and oil prior to applying Clean Grease LG2 or LGU, so slider. oil is not a special oil but a mineral oil, LG2 can be it can be used in high temperature range of 30 to the Grease functions are fully utilized. Once Grease is replenished, another supply is not handled in the same manner as general greases.

8 120 C. Clean Grease is exclusively used for clean required for a long time. But under some operational This cannot be used in vacuum. environments at normal temperatures. conditions, it is necessary to periodically replenish LG2 Application Grease . The following are replenishing methods . is a Lubrication Grease for rolling element products such as linear guides and ball screws Nature Note) Refer to NSK Grease Unit Catalog (CAT. ) for details of NSK Grease . * When replenishing using a Grease pump: Use a Grease pump and fill the inside of ball slide, Thickener Diurea for semiconductor and liquid crystal display (LCD) Base oil Synthetic hydrocarbon oil ball nut and monocarrier slider with Grease . Supply processing equipment which require a highly clean Consistency 201 Grease until it comes out from the ball slide, ball nut environment. Because LG2 is exclusively for a clean Dropping point 260 C or monocarrier slider area.

9 Move ball slide, ball nut environment at normal temperatures, however, it Volume of evaporation (99 C, 22 hr) or monocarrier slider by hand while filling them with cannot be used in a vacuum environment. Grease , so the Grease permeates all areas. Do not Copper plate corrosion test Satisfactory (Method B, 100 C, 24 hr). Refer to "Special environment" in page D8 for detailed operate the machine immediately after replenishing. Oil separation (100 C, 24 hr). data on superb characteristics of NSK Grease LG2. 2. Before use of NSK Precision Products Always try the system a few times to spread the Grease Base oil kinematic viscosity mm2/s (40 C). throughout the system and to remove excess Grease . Nature Wipe off the rust preventive oil before use for the Trial operations are necessary because the resistance Thickener Lithium soap base (6) NSK Grease NF2 products that the oil is applied. to sliding force and screw torque greatly increases Base oil mineral oil + Synthetic hydrocarbon oil If Grease is not applied, apply Grease , and move immediately after replenishment (full-pack state).

10 Consistency Dropping point 199. 201 C. It uses Features high-grade synthetic oil as the base oil and a ball slide or ball nut a few strokes so the Grease permeates into the ball slide and inside the nut. and may cause problems. The agitating resistance of Grease is accountable for this phenomenon. Wipe Volume of evaporation (99 C, 22 hr) urea base organic compound as the thickener. It has (Move the ball slide or the ball nut 5 to 10 times with off excess Grease that accumulates at end of rail and Copper plate corrosion test Satisfactory (Method B, 100 C, 24 hr) remarkable anti-fretting corrosion property. It can be full stroke.) screw shaft after trial runs so the Grease does not used in wide temperature range, from low to high, Then wipe off the excess Grease . move to other areas. Oil separation (100 C, 24 hr). and has superior Lubrication life. * When there is an exclusive Grease supply system Base oil kinematic viscosity 32 mm2/s (40 C).