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11.6.2 Cleanroom Specification
(1) What Grease to Use on the Guide and Ball Screw
For guides and ball screw, a urea-based grease of low-dust-raising type which has stable torque
characteristics and superior lubrication performance as well as the anti-rust effect equivalent to that of a
lithium-based grease is used. The following grease is used when we ship the unit:
Kuroda Precision Industries C Grease
Caution: Never use grease for the standard specification. It may allow dust to generate.
Warning: Never use any fluorine-based or lithium-based grease. It will cause the grease to lose its
lubrication performance and may damage the actuator or reduce cleanliness performance
when mixed with an urea-based grease.
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