Note: Please check that there is no contamination inside the motor looking in the motor hole. If there is contamination please remove using compressed air into the motor.
Please follow the lubrication interval, procedure and lubricant type suggested by the manufacturer of the linear guides considering the application conditions.
Hiwin linear guides: https://www.hiwin.com/
Won linear guides: http://www.wonst.co.kr
NB linear guides: https://www.nbeurope.com