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▶LM GUIDE- HRW  Wide Rail, Four-Way Equal-load Type
  Types and Features

Type HRW-CA

Type HRW-CR


Low-profile, wide, four-way equal-load type. LM-block mounting holes are tapped, and the flange bottom surface is spot-faced. An LM block can therefore be mounted from either above or below. Low-profile, wide, four-way equal-load type. LM blocks are to be mounted using the tapped holes provided on their top surfaces

Miniature Type HRW-LR

 
Low-profile, wide, and radial-load-resistant. LM blocks are to be mounted using the tapped holes provided on their top surfaces

 



Construction of Model HRW

 

           Balls roll in four rows of precision-ground raceway on an LM rail and an LM block.
        The end plate attached to the LM block causes the trains of balls to circulate.

        As the balls are held in place by the retainer plate, they do not fall off if the LM block
        is removed from the rail (except for types HRW 12 and 14LR).

        The four trains of balls are arranged so that the contact angle is 45° allowing each train of balls
        to bear an equal load rating in all four directions: radial, reverse-radial, and the two lateral directions.
        This type can therefore be used in any installation direction. Moreover, type HRW permits the application
        of a well-balanced preload, making it possible to increase rigidity in the four directions
        while keeping the friction coefficient low. The overall height is designed to be as low as possible.
        The LM block is made as thick as possible and is designed to be solidly fastened with six bolts
        (excluding types HRW12, 14LR, 17, and 21CR).

        Type HRW can be used with only one rail where space-saving is a necessity, moments act on the system,
        and high rigidity is required.

 

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