Ball spline types LT and LF have four or sixtrains of load-bearing balls to hold two or three crests on the spline shaft from both sides, so that an appropriate preload is applied without trouble. The Balls are held in place by the retainer, which is made of special synthetic resin and built into the interior of the spline nut. The retainer causes the balls to circulate in line and prevents them from falling off if the spline shaft is removed.
The preloaded angular-contact design, in which two trains of balls arranged opposite to each other hold a crest on the spline shaft at a contact angle of 20°, reduces the angular backlash in the rotational direction to zero and increases rigidity.
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Alternatively, click here for THK's complete LT/LF catalogue in PDF format
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