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Your cart is empty.Balls roll in four 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 even if the LM rail is pulled out (except models HSR 8, 10 and 12). 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. In addition, the LM block can receive a well-balanced preload, increasing the rigidity in the four directions while maintaining a constant, low friction coefficient. With the low sectional height and the high rigidity design of the LM block, this model achieves highly accurate and stable straight motion. Proper Installation of Linear Guides In this section, we’ll explain in detail how to install THK linear guide in linear type applications. Step 1: Before mounting the linear guides, a highly recommended advice is to clean up all rough edges and contaminate objects. Important: Datum lines of linear guides are normally composed of antirust. So, brush the antirust with a cleanser before positioning. Spraying some low coherence grease can preserve the datum plane. Step 2: Place the linear guide on the base and secure it with the drive screw or other appliances, so it sits properly on the datum line nicely. Important: Don’t forget to examine the adjustment of the screw holes before tightening them. Tightening the screw forcefully can unalign the screw holes, which influences the accuracy and quality due to offset. Step 3: Sequentially fasten the bolts to make the rail more steady. Push the track against the datum line gently to improve the connection between them. Step 4: Through a torque wrench, tighten the bolts from the centre to both edges. Step 5: Repeat similar strides for installing the auxiliary rail and then install the slides on the rail independently. Don’t forget to gather all adornments, like lubricant fitting, grease fitting and seals in this stage. Otherwise, later on, it gets hard to gather the adornments because of less space. Step 6: Locate the table smoothly on the slides on both main and subsidiary rails. Step 7: Tighten the perpendicular thrust screw to settle the table and attach the table screws in the sequence.
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