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2. Precautions
2.
Precautions on Use
Ball Spline
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Lubrication
C A U T I O N
Check lubricant
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Thoroughly remove anti-rust oil and feed lubricant before using the product.
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Do not mix different lubricants. Even grease containing the same type of thickening agent
may, if mixed, interact in an adverse manner due to disparate additives or other ingredients.
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When using the product in locations subject to constant vibrations or in special environments
such as in clean rooms, vacuums, and under low or high temperatures, be sure to use a
lubricant―suitable―for―the―specifications―and―environment.
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When lubricating products that do not feature a grease nipple or oil hole, directly coat the
raceway surface with lubricant and perform several warm-up strokes to ensure that the
grease permeates the interior.
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Grease consistency can vary depending on the temperature. Please keep in mind that the
Ball―Spline―sliding―resistance―may―be―affected―by―changes―in―consistency.
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Following greasing, the stirring resistance of the grease can cause the Ball Spline to exhibit
increased sliding resistance. Before commencing operation, be sure to run the unit through
several warm-up cycles to ensure that the grease is adequately integrated and dispersed.
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Excess grease may spatter immediately after lubrication. Wipe off spattered grease as
necessary.
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The properties of the grease deteriorate over time, thereby degrading the lubricity. It is
necessary to inspect and apply the grease in accordance with the usage frequency.
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How often grease should be replenished varies depending on the usage conditions and
environment. We recommend greasing the system approximately every 100 km traveled
(three to six months). Final greasing interval/amount should be set at an actual machine.
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When using oil lubrication, the lubricant may not be distributed throughout the product
depending on the installation direction of the Ball Spline. Contact THK for details.
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Storage
Ball splines should be stored horizontally in their original packaging in an indoor location where
they are not exposed to abnormally high or low temperatures or high humidity. Please note that if
the product has been kept in storage for an extended period of time, the lubricant inside may
have deteriorated. Please therefore ensure that you replenish the lubricant before re-use.
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Disposal
The product should be disposed of appropriately as an industrial waste.
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