NB Lubrication

The objective of lubrication includes the reduction of friction among the rolling elements as well as between the rolling elements and the raceway, prevention of sintering, reduction of wear, and the prevention of rust by forming a film over the surfaces. To maximize the performance of a linear system, the lubricant type and a lubrication method appropriate for the operating environment should be selected.

There are two types of lubrication; oil lubrication and grease lubrication. For oil lubrication, turbine oil conforming to ISO standard VG32 to 68 is recommended.

For grease lubrication, lithium soap based grease No. 2 is recommended. For slide bush and some other products, anti-rust oil that does not adversely affect the lubricant is applied prior to shipment. Please apply lubricant before using these products. (see Table 1- 37) Products with raceway grooves, such as slide guide, are delivered pre-lubricated with grease for immediate use. Please relubricate with a similar type of grease periodically depending on the operating conditions. The recommended relubrication period is about 6 months or 1,000km of travel distance under normal conditions.

NB provides the following optional greases. Please select one in accordance with the use

conditions of your linear system.

●KGL Grease (Low Dust Generation Grease) 

KGL Grease has an excellent property of low dust generation with a lithium-type thickening agent used. It

is ideal for use in a clean room.

●KGU Grease (Low Dust Generation Grease)

 * grease pre-applied on FR•FRA type

With urea-type thickening agent used, KGU Grease has features including a superior low dust generation

property and the reduced dynamic frictional resistance during low-speed operation.