Roller Follower Precautions on Use


  1. Do not disassemble the parts. This will result in loss of functionality.
  2. Take care not to drop or strike the Roller Follower. 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.
  3. When handling the product, wear protective gloves, safety shoes, etc., as necessary to ensure safety.

Precautions on Use

  1. Do not use the product at temperature of 80℃ or higher. Exposure to higher temperatures may cause the resin/rubber parts to deform/be damaged.
  2. Prevent foreign material, such as cutting chips or coolant, from entering the product. Failure to do so may cause damage.
  3. If foreign material such as cutting chips adheres to the product, replenish the lubricant after cleaning the product.
  4. Roller Followers are designed for use under a radial load. Do not use the product under a thrust load.
  5. Micro-oscillation makes it difficult for oil film to form on the raceway in contact with the rolling element, and may lead to fretting. Accordingly, use grease offering excellent fretting toughness. It is also recommended that the Cam Follower be turned once or so on a regular basis to make sure oil film is formed between the raceway and rolling element.
  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.


  1. Some types of the Roller Follower do not contain grease depending on the model number. Carefully refer to Contamination Protection and Lubrication , and if the desired model does not contain grease, apply grease to the product as necessary before using it. Lithium soap-based grease No. 2 is available as stan- dard.
  2. Do not mix different lubricants. In addition, replenish a lubricant also during operation as necessary. 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. Prior to using the product, apply lubricant between the Roller Follower and the rolling contact surface as well.
  4. 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.
  5. The consistency of grease changes according to the temperature. Take note that the slide resistance of the Roller Follower also changes as the consistency of grease changes.
  6. After lubrication, the slide resistance of the Roller Follower 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. Even when the unit is equipped with seals, excess grease may spatter during initial use and immediately after lubrication. If necessary, wipe off any spattered grease.
  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.


When storing the Roller Follower, enclose it in a package designated by THK and store it in a room while avoiding high temperature, low temperature and high humidity.
After the product has been in storage for an extended period of time, lubricant inside may have deteriorated, so add new lubricant before use.


Dispose of the product properly as industrial waste.