Precision Rolled Ball Screws

Transcription

1 recision Rolle all Screws R Series/LR Series Compact ball nut heraling in the next generation stanar. xtene maintenance free operation with NS 1 lubrication unit an new grease retaining seal. Suitable for high spee an long stroke operation.

2 A % reuction in the ball nut iameter compare to the current series No backlash, high spee an long stroke operation is possible. xtene maintenance free operation achieve with NS 1 lubrication unit an new grease retaining seal, thus contributing to total cost reuction. Compact ball nut Saves assembly space Suitable for rotating ball nut applications because of its low inertia an balance esign Remarkable improvement in sealing performance (introuction of grease retaining seal) rease retention capabilities substantially enhance Assists clean environment maintenance ue to minimum grease scattering Superb sealing capabilities in contaminate environments rease retaining seal NS 1 recision Rolle all Screws R Series/LR Series Conventional prouct New prouct A reuction in the ball nut iameter 1 unit aintenance free (equippe with NS 1 lubrication unit as a stanar feature) NS 1 lubrication unit, that is mole from resin an is impregnate with lubrication oil, supplies fresh oil onto the ball rolling surfaces. In unison with grease it retains the lubricating ability for an extene perio of time. Since its first appearance on the market in 1, it has been wiely accepte in many inustrial fiels. Accuracy grae Accuracy graes of Ct an Ct are available. L: Overall length of screw shaft all nut imensions CD W Shaft iameter: mm 1 1 T 1 T T X CD W Shaft iameter:,, an mm. X CD W Shaft iameter: an mm 1 X R. or less Dg inimum C L NS 1 lubrication unit Ls A 1 V mm rae Ct Ct ep: Tolerance on specifie travel Travel variation in a mm range (anywhere in useful travel). mm. mm Options Support unit (sol separately) NS provies the support bearing units to accompany the ball screw shafts. or further etails, please refer to the NS catalog: recision achine Components (CAT. No. 11). The bearing journal configurations of the screw shaft are provie on the following pages. ep ep = L V (mm) L: Overall length of screw shaft Applications Wooworking machines, general transporting equipment, feeers, robots, etc. R Series oel No. LR Series Shaft iameter Lea ffective turns of balls asic loa rating (N) Dimensions aximum screw shaft length Dynamic loa rating Ca R. 1 R. 1 1 R R. 1 1 R R. 1 R R R R oel No. Shaft iameter Lea ffective turns of balls Static loa rating Ca D A L C Type W X (1) (1) 11. (1) (1) 1. (1) 1 1. (1) 1. (1) 1 (1) (1) 1 1 (1) Ct Ct Stanar On Request Stanar On Request asic loa rating (N) Dimensions aximum screw shaft length Dynamic loa rating Ca LR 1. 1 LR LR 1. 1 LR 1. LR 1. Static loa rating Ca D A L C Type W X 1. (1) 1. (1) 1 (1) 1 (1) (1) Ct Ct Stanar On Request Stanar On Request 1

3 1. recision Rolle all Screws R Series/LR Series. Recommenation of Screw Shaft n Configuration 1.1 Specification.1 Drive sie shaft en an opposite en:. Drive sie shaft en an opposite en: R or orering, please quote the specification. : Accuracy grae an axial play S (Ct, axial play mm) VS (Ct, axial play mm) Screw shaft iameter (mm) Lea (mm) S 1 D S A1 earing journal for fixe support sie: please refer to the configuration of the screw shaft en outline in the catalog. earing journal for simple support sie: please refer to the configuration of the screw shaft en outline in the catalog. Screw shaft Screw shaft Tap hole Size : quippe with NS 1 unit N: No NS 1 unit (quippe with grease retaining seal only) Number of nut Opposite to the rive sie ermissible rotational spee vs. critical spee. 1 Screw shaft overall length Overall length of screw shaft If the length is less than 1 mm, enter to the forth igit. osition of ball nut flange D: Screw shaft rive sie S: Opposite to rive sie Drive sie 1. ermissible rotational spee of precision rolle ball screws We strongly recommen reviewing the allowable spee of the screw shaft. The allowable rotational spee of the ball screw shall be checke on the following. N value, which is involve in amaging the ball re-circulation components (Where, : shaft iameter measure in mm, N: rotational spee measure in min 1 ) Critical spee of the screw shaft (cause by the resonance of the screw shaft) ermissible N referably N< =. lease consult with NS if your ball screw excees the limitation. Critical spee See the chart below. or etaile calculations, please refer to the catalog: recision achine Component (CAT No. 11). lease consult NS if the maximum rotational spee excees min 1, even both the critical spee of the screw shaft rotation an the N value are in ranges of the allowable limit.. Opposite to rive sie shaft en: S n n. Opposite to rive sie shaft en: T n n. Drive sie shaft en: C Opposite to rive sie shaft en: U Support unit Screw shaft earing journal Snap ring groove WS-1 WS-1 WS-1 WS-1 WS-1 () () g With n Tolerance +.1 n Tolerance osition ( ): of bearing Support unit Screw shaft earing journal Snap ring groove Tap hole WS-1 WS-1 WS-1 WS-1 WS-1 () () g With n Tolerance +.1. n Tolerance osition Size ( ): of bearing Unsupporte length, mm 1 ixe-simple support ixe-ixe support 1 1 ixe-ree support 1 1 Shaft en mounting 1 Rotational spee, min 1 W-1A W-1A W-1A W-1 W-1 WD-1 WD-1 W-11 W-11 W-11 W-11 W-11 W W W W W m Support unit Screw shaft earing journal Lock nut threa exagon hole Nominal With across g m

4 . Opposite to rive sie shaft en: V. Drive sie shaft en: A.1 Drive sie shaft en: A U S T L 1 L 1 W-1A W-1A W-1A W-1 W-1 WD-1 WD-1 Support unit Screw shaft earing journal Lock nut threa ey seat W-11 W-11 W-11 W-11 W-11. Drive sie shaft en: A1 m 1 m1 Nominal With osition g m m N *Refer to page.1 an. for the imensions of rive sie shaft en of an R. Support unit Screw shaft earing journal Lock nut threa Drive section ey seat Nominal With osition With across osition 1 g L 1 m1 h L N +.1 U Tolerance T S W-1A W-11 W W-1A W-11 W W-1A W-11 W W-1 W-11 W W-1 W-11 W WD-1 WD ml1 1 L1 L W-1A W-1A W-1A W-1 W-1 WD-1 WD-1 Support unit Screw shaft earing journal Lock nut threa Drive section W-11 W-11 W-11 W-11 W-11. Drive sie shaft en: A U W W W W W Nominal 1 g L 1 m h L S T L 1 L 1 *Refer to page.1 an. for the imensions of rive sie shaft en of an R. 1 1 W exagon hole With across W Support unit Screw shaft earing journal Lock nut threa Drive section D Nominal osition With across osition 1 g L 1 h L W U Tolerance T S W-1A W-11 W-1A W-11 W-1A W-11 W-1 W-11 W-1 W-11 WD-1 WD-1 W W W W W D L 1 L Support unit Screw shaft earing journal Lock nut threa Drive section W-1A W-11 W-1A W-11 W-1A W-11 W-1 W-11 W-1 W-11 WD-1 WD-1 W W W W W ore With D W 11.. W 1.. W 1. 1 W. 11 W 1 ey seat Nominal With osition 1 g L 1 h L N earing journal imensions 1 With across

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