Precision Linear Pack Precautions on Use

Handling

1. Do not disassemble the parts. This will result in loss of functionality.
2. Take care not to drop or strike the Precision Linear Pack, which could result in injury or damage.A forceful impact could cause impair its function, even if there is no visible damage.
3. Removing the inner block of the Precision Linear Pack from the outer rail or letting it overshoot will cause balls to fall off.
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. In the event that cutting chips or other foreign matter adheres to the unit, clean it off and reapply lubricant.
3. Do not use the product at temperature of 80℃ or higher.
4. Using the product with some of the rolling elements missing may cause damage at an early stage.
5. If any of the rolling elements falls, contact THK instead of using the product.
6. 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.
7. Micro-strokes tend to obstruct oil fi lm 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.

Lubrication

1. Thoroughly remove anti-rust oil with a cleaning detergent and apply lubricant before using the product. As the most suitable grease, we recommend THK AFC Grease, which maintains lubricity over a long period of time. For lubrication in a clean room, low dust generation THK AFE-CA Grease and THK AFF Grease are recommended.
2. 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.
3. 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.
4. When lubricating the product, apply grease directly on the raceway and stroke the product several times to let the grease spread inside.
5. The consistency of grease changes according to the temperature. Take note that the slide resistance of the Precision Linear Pack also changes as the consistency of grease changes.
6. After lubrication, the slide resistance of the Precision Linear Pack 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.
7. Excess grease may scatter immediately after lubrication, so wipe off scattered grease as necessary.
8. 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.
9. The greasing interval varies depending on the use condition and service environment. Set the final lubrication interval/amount based on the actual machine.

Installation

Storage

When storing the Precision Linear Pack, 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.