Chapter 8 Maintenance and Inspection8.5 Grease Supply
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8.5 Grease Supply
8.5.1 Grease to Apply
IAI uses the following grease in our plant. Also, the grease to be used should be the same
regardless of parts.
Idemitsu Kosan Daphne Eponex Grease No. 2
Apart from above, there are equivalent sorts of grease sold in the market. For detail, ask your supplier
to recommend the equivalent by instructing the name of the grease above.
Here are some examples of similar products.
Showa Shell Oil Albania Grease No. 2
Mobil Oil Mobilux 2
8.5.2 Period of Time to Supply Grease
1. It shows the reference of the period of time to supply grease on the ball screws and linear guides in
the X, Y and Z axes in the table below.
For the R-axis, supply grease in every 6 monthes.
Grease Supply Period
Max. Speed mm/sec
Operation distance Number of Months
Over 0, At and Below 750 1,250km
Over 750, At and Below 1500 2,500km
Over 1500, At and Below 2500 5,000km
12 months
2. Max. Speed shows the velocity described in the catalog.
3. The period of time to supply grease can be referenced the same even if the use is not in the
maximum speed.
4. The period of time to supply grease should prior the one reached earlier from the operation
distance and the number of months.
5. Apart from the period of time indicated above, supply grease once in 3 months after the start of first
operation after delivery.
6. In case of stored for a long period of time (6 months or more), the grease may have got degraded.
Supply grease again before use.
7. Regular Inspection: Check the condition of the grease in every 6 months (internal inspection), and
supply it if it is confirmed that the grease is significantly dirty or is dried up.
8. If significant dirt is found, wipe it up before supplying grease.
After supplying grease, move the slider back and forth in the stroke range so the grease can be
spread evenly.
9. Confirm that there is gloss of the grease oil on the surface of ball driving area on the ball screw and
linear guide.
Supply grease again in case it is not spread to the whole area.
10. After supplying grease, wipe off the excess grease.
Too much grease may increase the sliding resistance and thus increase load to the motor.
Also, excess grease on the ball screw may splash and dirt the surroundings.
11. In case the grease got into your eye, immediately go see the doctor to get appropriate care.
After finishing the grease supply work, wash your hands carefully with water and soap to rinse the
grease off.
Warning: Never use any fluorine-based grease. Mixing with lithium-based grease with
other grease not only reduces the performance of the grease, it may even cause
damage to the actuator.
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