Oil-Free LM Guide for Special Environments Optimum for use under a vacuum environment (up to 106 Pa) where oil cannot be used Newly developed: Dry Lubrication S-Compound Film Low particle generation, low outgassing TOKYO. JAPAN

Oil-Free LM Guide for Special Environments THK-EX50 (martensitic stainless steel) Structure of the Oil-Free LM Guide for Special Environments # Structural characteristics 1. Uses stainless steel All components are made of stainless steel for special environment. Special solvent Is used to de-grease this This achieves The product does not use any grease, but adopts a highly reliable Dry Lubrication S-Compound Film. # What is Dry Lubrication S-Compound Film Dry Lubrication S-Compound Film is a fully dry lubricant developed for use under atmospheric to high-vacuum environments. It has superior characteristics...

The Oil-Free LM Guide for special environments exerts superbly low frlctional properties In atmospheric to vacuum -Dry Lubrication S-Compound Film (vacuum) -Dry Lubrication S-Compound Film (atmosphere) The Oil-Free LM Guide for special environments exerts a lower level of particle generation than conventional vacuum grease lubricants. Particle diameter (ium) ■ 0.1 or larger With vacuum grease (LM Guide) I Particle diameter (fjrn) ■ 0.1 or # Long Service Life The Oil-Free LM Guide for special environments has a longer service life than conventional dry lubrication. Contact surface pressure of...

Accuracy Standard Accuracy of the Oil-Free LM Guide for special environments is classified into Precision (P), Super Precision (SP) and Ultra Precision (UP). Radial clearance of the Oil-Free LM Guide for special environments is defined with the values in the table below.

Shoulder height of the mounting surface and the corner radius Normally, the mounting surface for the LM block and the LM rail has a datum plane on the side face in order to allow easy installation and highly accurate The corner of the mounting surface must be machined to have a recess, or machined to be smaller than the corner radius "r," to prevent interference with the chamfer of the LM block or the LM rail. Qlblerance in parallelism between 2 rails The following table shows the tolerance in parallelism (P) between 2 rails. Qlblerance in vertical level between 2 rails The following table shows...

Model SR-MSV/W Dimensional table for models SR-MSV/W Note 1 : If you desire a product other than the model numbers indicated above, contact THK. Note 2: For durability of the Oil-Free LM Guide for special environments, contact THK. Example of model number coding Number of rails used With this model, a single-rail unit constitutes one set (i.e., the required number of sets when 2 rails are used in parallel is 2).

Standard length and maximum length of the LM rail The following table shows the standard length and the maximum length of the LM rail of the Oil-Free LM Guide for special environments. If the overall rail length exceeds the maximum length, contact THK. For dimension G if you require a special length, we recommend using the dimensions in the table. If dimension G is longer, the respective part tends to become unstable after installation, which may negatively affect the accuracy. Standard length and maximum length of the LM rail Note 1 : If you desire a rail length larger than the maximum length,...

EFÜ=¡ln£ Oil-Free LM Guide for Special Environments • Pulling out the LM block from the LM rail will cause balls to fall, or damage the Dry Lubrication S-Compound Film when reattaching the LM block. If it is necessary to remove the LM block from the LM rail, contact THK. • Do not disassemble the parts. Doing so may cause entrance of dust or a functional loss. • Tilting the LM block or the LM rail may cause it to fall by its own weight. • Do not drop or hit the LM Guide. Doing so may cause injury. It may also cause failure or breakage. Applying an impact to the product may cause a functional loss...