Separate (Four-way equal load) Model HR

Separate (Four-way equal load) Model HR

An LM Guide that is capable of receiving the identical load in the 4 directions with parallel installation of 2 rails, has a low sectional height and allows the clearance to be adjusted.

Balls roll in two rows of raceways precision-ground on an LM rail and an LM block, and endplates incorporated in the LM block allow the balls to circulate. Since retainer plates hold the balls, they do not fall off. Because of the angular contact structure where two rows of balls rolling on the LM rail each contact the raceway at 45゜, the same load can be applied in four directions (radial, reverseradial and lateral directions) if a set of LM rails and LM block is mounted on the same plane (i.e., when two LM rails are combined with an LM block on the same plane). Furthermore, since the sectional height is low, a compact and stable linear guide mechanism is achieved. This structure makes clearance adjustment relatively easy, and is highly capable of absorbing a mounting error.

●Easy installation

Model HR is easier to adjust a clearance and achieve accuracy than cross-roller guides.

●Self-adjustment capability

Even if the parallelism or the level between the two rails is poorly established, the self-adjustment capability through front-to-front configuration of ‘s unique circular-arc grooves (DF set) enables a mounting error to be absorbed and smooth linear motion to be achieved even under a preload.

●4-way equal load

When the two rails are mounted in parallel, each row of balls is placed at a contact angle of 45゜ so that the rated loads applied to the LM block are uniform in the four directions (radial, reverse-radial and lateral directions), enabling the LM Guide to be used in all orientations and in extensive applications.

●Sectional dimensions approximate to that of cross-roller guides

Since model HR is an infinite motion type whose retainer plate does not move, it is not associated with cage displacement that occurs with cross-roller guides. In addition, the sectional shape of model HR is approximate to that of cross-roller guides, and therefore, its components are interchangeable with that of cross-roller guides.

●Stainless steel type also available

A special type whose LM block, LM rail and balls are made of stainless steel is also available.