XP CATALOG

PRIME ball screws are used in applications in which the load and the speed requirements are not as demanding as in COMPLEX ball screws. In applications with a maximum DN of 100.000, such as grinding machines, EDM machines, low speed and short lead applications, PRIME ball screws obtain accurate results in positioning and a very smooth rotation in short strokes. PRIME ball screw are manufactured with the highest material and quality standards in order to obtain the best performance along the life cycle of the ball screw. Depending on the application, PRIME ball screws can be assembled with preloaded compact or preloaded double nuts. Each ball circuit is independent, and has its own ‘S’-shaped deflector, which enables the ball to overpass the lead groove. A reduced outer nut diameter allows for compact design. Technology Sectors Features Preload Nut type Recirc. Diameter Pitch Ball size Application PRIME Machine tool Grinding machines EDM machines High precision ball screws DN of 100.000 For precise positioning and average dynamics demand YES TC Compact Nut (1 start) S 20-100 5-20 3-9 General Machine tool application, with short nut length. Improved T9 TD Double Nut (1 start) General Machine tool application. Possibility of greater circuit quantity S-type recirculation system TC PRIME PRELOADED COMPACT NUT The preloaded PRIME compact nut is configured with an S-type recirculation and has 1 start. Depending on the application, the compact nut offers: · Better alignment and concentricity of the whole nut with the screw. · Reduced nut length, thus less mass. · Elimination of the bearing holder parts in rotary nut designs. · Possibility of special designs, with compact nut-carrying bodies. SHUTON·IPIRANGA recommends the use of preloaded compact nuts in short and medium-sized ball screws with short leads. Preload system: The preload is obtained by modifying the dimension of a thread in the centre of the nut. TC, PRIME preloaded compact nut TC, PRIME preloaded compact nut, S-type recirculation system TECHNOLOGY 16