Cross-Roller Table Precautions on Use

Handling

1. Do not disassemble the parts. This will result in loss of functionality.
2. The cross-roller table is shipped with the clearance adjustment screws set to the optimal preload level. Do not overtighten or overloosen this screw, as excess preload or clearance can affect the function of the product.
3. Take care not to drop or strike the Cross-Roller Table. Doing so may cause injury or damage.Giving an impact to it could also cause damage to its function even if the product looks intact.
4. When handling the product, wear protective gloves, safety shoes, etc., as necessary to ensure safety.

Precautions on Use

1. Prevent foreign material, such as cutting chips or coolant, from entering the product. Failure to do so may cause damage.
2. If foreign material such as cutting chips adheres to the product, replenish the lubricant after cleaning the product.
3. Do not use the product at temperature of 100℃ or higher.
4. Do not use the internal stopper, a mechanism that prevents the table from being removed, as a stopper. This may damage the stopper due to impact.
5. Micro-strokes tend to obstruct oil film to form on the raceway in contact with the rolling element, and may lead to fretting corrosion. Take consideration using grease offering excellent fretting prevention. THK also recommends periodically executing a full stroke with the unit to ensure that the raceway and balls are coated with lubricant.
6. Do not use undue force when fitting parts (pin, key, etc.) to the product. This may generate permanent deformation on the raceway, leading to loss of functionality.
7. Insufficient rigidity or accuracy of mounting members causes the bearing load to concentrate on one point and the bearing performance will drop significantly. Accordingly, give sufficient consideration to the rigidity/accuracy of the housing and base and strength of the fixing bolts.

Lubrication

1. For lubrication of the Cross-Roller Table, use lithium-soap group grease or oil when it is necessary as with ordinary bearings.
2. Thoroughly wipe off anti-rust oil and feed lubricant before using the product.
3. When lubricating the product, apply grease directly on the raceway and stroke the product several times to let the grease spread inside.
4. Do not mix different lubricants. Mixing greases using the same type of thickening agent may still cause adverse interaction between the two greases if they use different additives, etc.
5. When using the product in locations exposed to constant vibrations or in special environments such as clean rooms, vacuum and low/high temperature, use the grease appropriate for the specification/environment.
6. The consistency of grease changes according to the temperature. Take note that the slide resistance of the Cross-Roller Table also changes as the consistency of grease changes.
7. After lubrication, the slide resistance of the Cross-Roller Table may increase due to the agitation resistance of grease. Be sure to perform a break-in to let the grease spread fully, before operating the machine.
8. Excess grease may scatter immediately after lubrication, so wipe off scattered grease as necessary.
9. The properties of grease deteriorate and its lubrication performance drops over time, so grease must be checked and added properly according to the use frequency of the machine.
10. The greasing interval varies depending on the use condition and service environment. Set the final lubrication interval/amount based on the actual machine.

Displacement of Cage

Storage

When storing the Cross-Roller Table, enclose it in a package designated by THK and store it in a room in a horizontal orientation while avoiding high temperature, low temperature and high humidity.

Disposal

Dispose of the product properly as industrial waste.