18mm or .71 inches for the mating mounting surface dimension across the backside of the cold-drawn steel rail. This Linear Guide with the induction hardened raceways is offered up to 2 meters or 78-3/4" long, beyond this length the rails are completely joinable for very long guidance.
This linear guide way is offered with a "T" series master rail that allows for complete lateral stability as well as a "U" series follower rail that allows for parallel mis-alignment of 1.4mm or .055 inches. The rail utilizes two types of mounting holes for easy assembly, the TLV style of mounting holes are Countersunk for M4 x 0.7 screws and the TLC style of mounting holes are counterbored for use with the M4 Torx screws supplied with the rails.
Both the 3 bearing "N" style slider and the 3, 4, 5, or 6 bearing "CSW" style sliders are available to be used with this size rail. The "NT" or "NU" cast aluminum bodies have 3 precision rollers running on opposed surfaces, the adjustable center roller sets the preload for the slider. This cast aluminum body has steel inserts for mounting, lateral seals, and scrapers to protect the ends of the slider from contaminate infiltration.
The "CSW" steel body can be supplied with 3, 4, 5, or 6 precision rollers running on opposed surfaces. The steel body design allows for saddle mounting in-line with the mounting of the rails. The slider has stiff steel backed modified polyamide scrapers to protect the ends of the slider from contamination. All the precision rollers are offered with zinc shields that provide labyrinth contamination protection as well as rubber seals to further protect the internal steel ball bearings.
These sized series have been widely used throughout pharmaceutical, medical, packaging, and automotive machinery. This size linear rail and bearing system is generally chosen where a long life, high capacity, low coefficient, and a very small cross-section under ¾ of an inch are needed. |
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