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To "lubricate" means to reduce the frictions of contacting surfaces in machinery components. The purpose of Lubrication in ball screw applications is to reduce friction and wear, provide anti-corrosion, cooling, and foreign substance displacement measures. All these measures are to maintain ball screw's excellent characteristics and performances.
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| Lubricants are divided in two major categories, Greases and Oils, and must be selected based on application specific requirements. Grease is often the general preference as the lubricating medium for ball screws due to lower cost and ease of application. The oil lubrication requires frequent application with centralized lubrication systems, and is rarely used other than in machine tool and other special applications where constant removal of foreign matter and heat are required. |
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| Purposes and effects of lubrication |
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Grease |
oil |
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Purposes and effects
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Reduction of friction and wear
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Corrosion prevention
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Load equalization for longer life
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Prevention of temperature-rise for better accuracy retention
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Heat removal
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Foreign matter removal
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Selection
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Simplicity of the application system
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Serviceability
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Potentiality for leakage and contamination
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Survivability in wide temperature range
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| Kuroda use Albania Grease S2 for our standard without any suggestion from the customers. Use of Lithium soap-based grease is recommended for ball screws because it has excellent watertight and heat-resisting characteristics, and use of spindle oil or turbine oil (ISO VG32-68) is also recommended as lubricant. |
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Lubricant
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Application
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Product Name
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Manufacturer
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Service Notes
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Grease
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General applications
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Albania Grease S2
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SHOWA SHELL CO., LTD.
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Inspect for contamination (dirt, metal chips, etc.) every 2~3 months. Wipe off old grease and reapply fresh grease. Grease should be replaced every 12 months regardless of if any signs of anomaly are observed or not.
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Mobilux No.2
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MOBIL SEKIYU K.K.
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Daphne Coronex No.2
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IDEMITSU KOSAN CO., LTD.
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Low temperature applications
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Multemp PS No.2
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KYODO YUSHI CO., LTD.
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High temperature applications
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Multemp LRL
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KYODO YUSHI CO., LTD.
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Oil
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General applications
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Daphne Mechanic Oil
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IDEMITSU KOSAN CO., LTD.
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Weekly inspect for oil level and contamination. Add oil per every inspection cycle.
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Mobil Vactra
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MOBIL SEKIYU K.K.
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* Please contact us for lubrication requirements in special application circumstances.
*Care should be taken when selecting greases and oils as improper selection may result in increased rotational torque and other undesirable operation conditions. |
