Screw jacks with travelling ball nut (Mod.B)

Transcription

1 Screw jacks with travelling ball nut (Md.B).1 MA Series Md.B - STRUCTURAL ELEMENTS ball screw in quenched and tempered ally steel 11 - lw cver 2 - ball nut in case-hardened steel with flange accrding t 12 - raised cver; may als be used as a centring diameter DIN (available als with cylindrical flange), with grease nipple and end seals - wrm with grund ZI invlute thread prfile (UNI 4760) in 1 - wrmwheel radial brnze guide fr higher stiffness and case-hardened steel better efficiency 4 - brnze wrm wheel with true invlute prfile ZI (UNI 4760) 14 - grub screw t prevent the threaded cver unscrewing 5 - cast irn supprt f the brnze wrm wheel rim 15 - lng-life synthetic il lubricated wrm gearbx (size 5 and 10: entire wrmwheel in brnze) 6 - ball screw fixed t the wrm wheel thrugh the 16 - radial lubricant seal cylindrical centring part and metric thread LEFT-HAND fr PUSH lad r RIGHT-HAND fr PULL lad 7 - lck nut with ppsite metric thread directin t ensure a 17 - O-ring safe ball screw fixing 8 - ball screw wrmwheel pins against unscrewing 18 - breather 9 - thrust ball bearing fr high lad capacity 19 - il level plug 10- gear bx 20 - il drain plug 62

2 Screw jacks with travelling ball nut (Md.B).2 SJ Series Md.B - STRUCTURAL ELEMENTS ball screw in quenched and tempered ally steel 10 - gear bx 2 - ball nut in case-hardened steel with flange accrding t 11 - threaded cver; may als be used as a centring diameter DIN (available als with cylindrical flange), with grease nipple and end seals - wrm with grund ZI invlute thread prfile (UNI 4760) in 12 - grub screw t prevent the threaded cver unscrewing case-hardened steel 4 - brnze wrm wheel with true invlute prfile ZI (UNI 4760) 1 - guide bush fr ball screw, may be used as a spigt diameter 5 - cast irn supprt f the brnze wrm wheel rim 14 - lng-life synthetic grease lubricated wrm gearbx (size : entire wrmwheel in brnze) 6 - ball screw fixed t the wrm wheel thrugh the cylindrical 15 - grease nipple centring part and metric thread LEFT-HAND fr PUSH lad r RIGHT-HAND fr PULL lad 7 - lck nut with ppsite metric thread directin t ensure a 16 - radial lubricant seal safe ball screw fixing 8 - ball screw wrmwheel pins against unscrewing 17 - O-ring 9 - thrust ball bearing fr high lad capacity 6

3 Screw jacks with travelling ball nut (Md.B). HS Series - STRUCTURAL ELEMENTS ball screw in quenched and tempered ally steel 9 - gear bx 2 - ball nut in case-hardened steel with flange accrding t 10- square cvers with centring diameter fr screw jack DIN (available als with cylindrical flange), with psitining grease nipple and end seals - slid input shaft with key (r flange and hllw shaft fr 11 - plastic guide bush mtr cupling) 4 - bevel gear in case-hardened and tempered steel 12 - lng-life synthetic il lubricated wrm gearbx and bearings 5 - utput hllw shaft in hardened and tempered steel 1 - O-ring 6 - key t transmit the trque t the utput shaft 14 - radial lubricant seal 7 - key t transmit the trque t the utput shaft 15 - NILOS seal which allws t create a chamber fr the lubricant f the upper bearing; used nly in case f vertical munting psitin 8 - thrust ball bearing fr high lad capacity

4 Screw jacks with travelling ball nut (Md.B).4 Standard ball screw gearbx arrangements Diameter Lead MA 5 MA 10 MA 25 MA 50 MA MA 80 MA 150 MA 200 MA 50 SJ 5 SJ 10 SJ 25 SJ 50 SJ SJ 100 SJ 150 SJ 200 SJ 00 SJ 400 HS 10 HS 25 HS 50 HS HS 100 HS 150 HS 200 It is pssible t supply screw-gearbx arrangements different frm the standard nes. Fr mre infrmatin please cntact SERVOMECH..5 Max. input pwer P max Fllwing tables shw the MAX. INPUT POWER P max [kw] t the gearbx at different speeds, calculated fr a gear life f hurs. Fr different life requirements, please cntact SERVOMECH. MA P max [kw] P max [kw] P max [kw] P max [kw] P max [kw] P max [kw] P max [kw] P max [kw] n 1 [rpm] RATIO RATIO RATIO RATIO RATIO RATIO RATIO RATIO RV RN RL RV RN RL RV RN RL RV RN RL RV RN RL RV RN RL RV RN RL RV RN RL SJ P max [kw] P max [kw] P max [kw] P max [kw] P max [kw] P max [kw] P max [kw] P max [kw] P max [kw] n 1 [rpm] RATIO RATIO RATIO RATIO RATIO RATIO RATIO RATIO RATIO RH RV RN RL RV RN RL RV RN RL RV RN RL RV RN RL RV RN RL RV RL RV RL RV RL HS P max [kw] P max [kw] P max [kw] P max [kw] P max [kw] P max [kw] n 1 [rpm] RATIO RATIO RATIO RATIO RATIO RATIO R1 R1.5 R2 R R4 R1 R1.5 R2 R R4 R1 R1.5 R2 R R4 R1 R1.5 R2 R R4 R1 R1.5 R2 R R4 R1 R1.5 R2 R R

5 Screw jacks with travelling ball nut (Md.B).6 TECHNICAL DATA MA BS Series Md.B MA 5 BS MA 10 BS MA 25 BS MA 50 BS Lad capacity [kn], (push - pull) Wrm gear centre distance [mm] Rati Gear bx material fast RV 1 : 4 (4 : 16) 1 : 5 (4 : 20) 1 : 6 (4 : 24) 1 : 7 (4 : 28) nrmal RN 1 : 16 (2 : 2) 1 : 20 1 : 18 (2 : 6) 1 : 14 (2 : 28) slw RL 1 : 24 1 : 25 1 : 24 1 : 28 casting in aluminium ally EN AC-AlSi10Mg T6 casting in spheridal graphite irn EN-GJS (UNI EN 156) Mass f gear bx withut ball screw [kg] SJ BS Series Md.B SJ 5 BS SJ 10 BS SJ 25 BS SJ 50 BS SJ 100 BS Lad capacity [kn], (push - pull) Wrm gear centre distance [mm] Rati Gear bx material high RH 1 : 4 (5 : 20) fast RV 1 : 6.25 (4 : 25) 1 : 4 (4 : 16) 1 : 6 (4 : 24) 1 : 7 (4 : 28) 1 : 7 (4 : 28) nrmal RN 1 : 12.5 (2 : 25) 1 : 16 (2 : 2) 1 : 18 (2 : 6) 1 : 14 (2 : 28) 1 : 14 (2 : 28) slw RL 1 : 25 1 : 24 1 : 24 1 : 28 1 : 28 casting in aluminium ally EN AC-AlSi10Mg T6 casting in grey cast irn EN-GJL-250 (UNI EN 1561) Mass f gear bx withut ball screw [kg] Serie HS HS 10 HS 25 HS 50 Lad capacity [kn], (push - pull) Husing side dimensins [mm] Rati Gear bx material R1 1 : 1 1 : 1 1 : 1 R1.5 1 : : : 1.5 R2 1 : 2 1 : 2 1 : 2 R 1 : 1 : 1 : R4 1 : 4 1 : 4 1 : 4 casting in grey cast irn EN-GJL-250 (UNI EN 1561) Mass f gear bx withut ball screw [kg]

6 .6 TECHNICAL DATA Screw jacks with travelling ball nut (Md.B) MA 80 BS MA 150 BS MA 200 BS MA 50 BS MA BS Series Md.B Lad capacity [kn], (push - pull) Wrm gear centre distance [mm] 1 : 7 (4 : 28) 1 : 8 (4 : 2) 1 : 8 (4 : 2) : 2 RV fast 1 : 14 (2 : 28) 1 : 24 1 : 24 1 : 16 (2 : 2) RN nrmal 1 : 28 1 : 2 1 : 2 1 : 2 RL slw casting in spheridal graphite irn EN-GJS (UNI EN 156) Gear bx material Mass f gear bx withut ball screw [kg] Rati SJ 150 BS SJ 200 BS SJ 250 BS SJ 00 BS SJ 400 BS SJ BS Series Md.B Lad capacity [kn], (push - pull) Wrm gear centre distance [mm] RH high 1 : 8 (4 : 2) 1 : 7 (4 : 28) 1 : 7 (4 : 28) : 29 : 28 RV fast 1 : RN nrmal 1 : 2 1 : 28 1 : 28 1 : 0 1 : 29 RL slw casting in grey cast irn EN-GJL-250 (UNI EN 1561) welded steel S55 J2 (UNI EN 10025) Gear bx material Mass f gear bx withut ball screw [kg] Rati HS 100 HS 150 HS 200 Serie HS Lad capacity [kn], (push - pull) Husing side dimensins [mm] 1 : 1 1 : 1 1 : 1 R1 1 : : : 1.5 R1.5 1 : 2 1 : 2 1 : 2 R2 1 : 1 : 1 : R 1 : 4 1 : 4 1 : 4 R4 casting in grey cast irn EN-GJL-250 (UNI EN 1561) Gear bx material Mass f gear bx withut ball screw [kg] Rati 67

7 Screw jacks with travelling ball nut (Md.B).7 Ball screws and nuts technical data Ball screws prduced with whirling prcess, accuracy grade IT 5 ( 1 ) Ball screw Ball nut cde ( 2 Dynamic Static ) Ball n f starts n f circuits lad lad BS d 0 P h D w [mm] N p i C a [kn] C 0a [kn] BS 16 5 SFN-_ R BS SFN-_ R BS 20 5 SFN-_ R SFN-_ R BS SFN-_ R BS 25 5 SFN-_ R BS SFN-_ R BS 2 5 SFN-_ R BS 2 10 SFN-_.2.10.R SFN-_ R SFN-_ R BS 2 20 SFN-_.2.20.R BS SFN-_ R BS SFN-_ R BS SFN-_ R BS SFN-_ R BS 6 10 SFN-_ R BS 6 20 SFN-_ R BS SFN-_ R BS SFN-_ R BS SFN-_ R-F BS SFN-_ R BS SFN-_ R BS SFN-_ R BS SFN-_ R ( 1 ) - ball screws with accuracy grade IT can be supplied n request ( 2 ) - the nut cde in the table is incmplete; t cmplete it refer t Ch..8 Ball nuts dimensins 68

8 Screw jacks with travelling ball nut (Md.B).7 Ball screws and nuts technical data Rlled ball screws, accuracy grade IT 7 Ball screw Ball nut cde ( 2 Dynamic Static ) Ball n f starts n f circuits lad lad BS d 0 P h D w [mm] N p i C a [kn] C 0a [kn] BS 16 5 SFN-_ R BS SFN-_ R BS SFN-_ R BS 20 5 SFN-_ R SFN-_ R BS SFN-_ R BS SFN-_ R BS 25 5 SFN-_ R BS SFN-_ R BS SFN-_ R BS 2 5 SFN-_ R BS 2 10 SFN-_.2.10.R SFN-_ R SFN-_ R BS 2 20 SFN-_.2.20.R BS 2 2 SFN-_.2.2.2R BS SFN-_ R BS SFN-_ R BS SFN-_ R ( 2 ) - the nut cde in the table is incmplete; t cmplete it refer t Ch..8 Ball nuts dimensins 69

9 Screw jacks with travelling ball nut (Md.B).8 Ball nut dimensins Nuts with flange accrding t DIN Ball screw Flange Nut cde Dimensins [mm] type BS d 0 P h D 1 D 4 D 5 D 6 D 7 L 1 L L 7 L 8 L 10 L BS 16 5 SFN-D R M BS SFN-D R M BS SFN-D R M BS 20 5 SFN-D R M SFN-D R M BS SFN-D R M BS SFN-D R M BS 25 5 SFN-D R M BS SFN-D R M BS SFN-D R M BS 2 5 SFN-D R M SFN-D.2.10.R M BS 2 10 SFN-D R M SFN-D R M BS 2 20 SFN-D.2.20.R M BS 2 2 SFN-D.2.2.2R M BS SFN-D R M BS SFN-D R M BS SFN-D R M BS SFN-D R M BS SFN-D R M BS 6 10 SFN-D R M BS 6 20 SFN-D R M BS SFN-D R M BS SFN-D R M BS SFN-D R-F M BS SFN-D R M BS SFN-D R M BS SFN-D R M BS SFN-D R M D L L /2 7 L 1 L js14 L h1 7 L 10 D 7 L 10 D h1 6 D 4 D h1 6 D 4 D = D D g6 1 D 2 = D L h1 8 L h1 8 D H Flange type: 1 (d 0 < 40 mm) Flange type: 2 (d 0 40 mm)

10 Screw jacks with travelling ball nut (Md.B).8 Ball nut dimensins Nuts with flange at SERVOMECH drawing SERVOMECH Ball screw Flange Nut cde Dimensins [mm] type BS d 0 P h D 1 D 4 D 5 D 6 D 7 L 1 L L 7 L 10 L BS 16 5 SFN-S R M BS SFN-S R M BS SFN-S R M BS 20 5 SFN-S R M SFN-S R M BS SFN-S R M BS SFN-S R M BS 25 5 SFN-S R M BS SFN-S R M BS SFN-S R M BS 2 5 SFN-S R M SFN-S.2.10.R M BS 2 10 SFN-S R M SFN-S R M BS 2 20 SFN-S.2.20.R M BS 2 2 SFN-S.2.2.2R M BS SFN-S R M BS SFN-S R M BS SFN-S R M BS SFN-S R M BS SFN-S R M BS 6 10 SFN-S R M BS 6 20 SFN-S R M BS SFN-S R M BS SFN-S R M BS SFN-S R-F M BS SFN-S R M BS SFN-S R M BS SFN-S R M BS SFN-S R M L js14 D 7 L D 7 L L /2 7 L 1 L h1 7 L 10 D h1 6 D 4 D h1 6 D 4 D = D D g6 1 D 2 = D Flange type: 1 6 hles at 60 (d 0 < 40 mm) Flange type: 2 8 hles at 45 (d 0 40 mm) D H1 5 71

11 Screw jacks with travelling ball nut (Md.B).9 Ball nut life Ball screw diameter 16-20, accuracy grade IT r IT 5 Fllwing life diagrams refer t a cnstant applied lad, withut shcks and 90 % ball screw reliability. Fr different lad and/r reliability cnditins, please refer t ch Ball screw life calculatin n page 18 r cntact SERVOMECH. Lad [kn] E A B C D Life in perfrmed strke [km] BALL SCREW Ball [mm] N f starts N f circuits C a [kn] C 0a [kn] CURVE BS A BS C BS B BS E BS D 72

12 .9 Ball nut life Screw jacks with travelling ball nut (Md.B) Ball screw diameter 16-20, accuracy grade IT 7 Fllwing life diagrams refer t a cnstant applied lad, withut shcks and 90 % ball screw reliability. Fr different lad and/r reliability cnditins, please refer t ch Ball screw life calculatin n page 18 r cntact SERVOMECH. Lad [kn] F A B C D E Life in perfrmed strke [km] G BALL SCREW Ball [mm] N f starts N f circuits C a [kn] C 0a [kn] CURVE BS A BS C BS F BS B BS E BS D BS G 7

13 Screw jacks with travelling ball nut (Md.B).9 Ball nut life Ball screw diameter 25-2, accuracy grade IT r IT 5 Fllwing life diagrams refer t a cnstant applied lad, withut shcks and 90 % ball screw reliability. Fr different lad and/r reliability cnditins, please refer t ch Ball screw life calculatin n page 18 r cntact SERVOMECH. Lad [kn] E D A B C Life in perfrmed strke [km] H G F BALL SCREW Ball [mm] N f starts N f circuits C a [kn] C 0a [kn] CURVE BS A BS C BS B BS D BS G BS H BS F BS E 74

14 .9 Ball nut life Screw jacks with travelling ball nut (Md.B) Ball screw diameter 25-2, accuracy grade IT 7 Fllwing life diagrams refer t a cnstant applied lad, withut shcks and 90 % ball screw reliability. Fr different lad and/r reliability cnditins, please refer t ch Ball screw life calculatin n page 18 r cntact SERVOMECH. Lad [kn] I 4 A B C D 2.5 E Life in perfrmed strke [km] H G F BALL SCREW Ball [mm] N f starts N f circuits C a [kn] C 0a [kn] CURVE BS A BS C BS D BS B BS E BS G BS H BS F BS I 75

15 Screw jacks with travelling ball nut (Md.B).9 Ball nut life Ball screw diameter 40, accuracy grade IT r IT 5, IT 7 Fllwing life diagrams refer t a cnstant applied lad, withut shcks and 90 % ball screw reliability. Fr different lad and/r reliability cnditins, please refer t ch Ball screw life calculatin n page 18 r cntact SERVOMECH. Lad [kn] E 6 A B C D Life in perfrmed strke [km] BALL SCREW Ball [mm] Accuracy grade N f starts N f circuits C a [kn] C 0a [kn] CURVE BS IT r IT D IT C BS IT r IT B IT A BS IT E 76

16 .9 Ball nut life Screw jacks with travelling ball nut (Md.B) Ball screw diameter 50-6, accuracy grade IT r IT 5 Fllwing life diagrams refer t a cnstant applied lad, withut shcks and 90 % ball screw reliability. Fr different lad and/r reliability cnditins, please refer t ch Ball screw life calculatin n page 18 r cntact SERVOMECH. Lad [kn] C A B Life in perfrmed strke [km] BALL SCREW Ball [mm] N f starts N f circuits C a [kn] C 0a [kn] CURVE BS A BS A BS B BS C 77

17 Screw jacks with travelling ball nut (Md.B).9 Ball nut life Ball screw diameter 80, accuracy grade IT r IT 5 Fllwing life diagrams refer t a cnstant applied lad, withut shcks and 90 % ball screw reliability. Fr different lad and/r reliability cnditins, please refer t ch Ball screw life calculatin n page 18 r cntact SERVOMECH. Lad [kn] D A B C Life in perfrmed strke [km] BALL SCREW Ball [mm] N f starts N f circuits C a [kn] C 0a [kn] CURVE BS A BS B BS C BS D 78

18 .9 Ball nut life Screw jacks with travelling ball nut (Md.B) Ball screw diameter , accuracy grade IT r IT 5 Fllwing life diagrams refer t a cnstant applied lad, withut shcks and 90 % ball screw reliability. Fr different lad and/r reliability cnditins, please refer t ch Ball screw life calculatin n page 18 r cntact SERVOMECH. Lad [kn] C A B Life in perfrmed strke [km] BALL SCREW Ball [mm] N f starts N f circuits C a [kn] C 0a [kn] CURVE BS A BS B BS C 79

19 Screw jacks with travelling ball nut (Md.B).10 Ball screw direct efficiency Thanks t balls interpsed between the threaded shaft and nut, the frictin cefficient between balls and tracks is cnstant als in case f speed and lad variatins. This implies that als the ball screw efficiency can be cnsidered as cnstant by varying wrking cnditins and it is called theretical ball screw efficiency. The theretical efficiency f the ball screw depends n the gemetry f the ball tracks nly. Fr a cnservative calculatin, it is recmmended t apply a safety factr f 0.92 n the given efficiency in rder t cnsider als the dependence n lad and speed. The fllwing tables shw the theretical efficiency f all ball screws available fr screw jacks Md.B with rtating screw and travelling nut. d P h η BS.11 Wrm gear direct efficiency η RID MA 5 MA 10 MA 25 MA 50 MA 80 MA 150 MA 200 MA 50 n 1 RATIO RATIO RATIO RATIO RATIO RATIO RATIO [rpm] RV RN RL RV RN RL RV RN RL RV RN RL RV RN RL RV RN RL RV RN RL START η RID SJ 5 SJ 10 SJ 25 n 1 [rpm] SJ 50 SJ 100 SJ 150 SJ 200 SJ 250 SJ 00 SJ 400 RATIO RATIO RATIO RATIO RATIO RATIO RATIO RATIO RH RV RN RL RV RN RL RV RN RL RV RN RL RV RN RL RV RL RV RL RV RL START η RID Serie HS (all sizes, all ratis) RUNNING 0.90 STARTING

20 .12 Static braking trque Screw jacks with travelling ball nut (Md.B) The braking trque is the necessary trque t keep the lad n the screw jack in a static psitin. The braking trque shall be applied with a brake n the screw jack input shaft. Braking trque calculatin The braking trque value is calculated as fllws: where: η BS - ball screw back-driving efficiency η RID - wrm gear back-driving efficiency F [kn] - lad applied n the screw jack P h [mm] - ball screw thread helix lead u - wrm gear rati (u > 1) The calculated T F value must be cmpared with the minimum braking trque threshld value, which must always be assured. The real braking trque value is therefre the highest ne f the tw values. T F eff = max (T F ; T F min ) Fllwing tables shw the T F min and the back-driving efficiency values. NOTE: where n value is stated, it means that the system is ideally self-lcking. Actually, due t hardly predictable external factrs, such as vibratins and shcks, it still can be pssible t have a nt self-lcking system and therefre, even in this case, it is necessary t apply a braking trque t sustain the lad in psitin, equal t the minimum T F min. d P h η BS SJ 5 SJ 10 SJ 25 MA 5 MA 10 MA 25 MA 50 MA 80 MA 150 MA 200 MA 50 η RID RATIO RATIO RATIO RATIO RATIO RATIO RATIO RV RN RL RV RN RL RV RN RL RV RN RL RV RN RL RV RN RL RV RN RL SJ 50 SJ 200 SJ 150 SJ 100 SJ 250 SJ 00 SJ 400 η RID RATIO RATIO RATIO RATIO RATIO RATIO RATIO RATIO RH RV RN RL RV RN RL RV RN RL RV RN RL RV RN RL RV RL RV RL RV RL Serie HS (all sizes, all ratis) η RID 0.90 T F min [Nm] T F min [Nm] T F min [Nm] MA 5 MA 10 MA 25 MA 50 MA 80 MA 150 MA 200 MA SJ 5 SJ 10 SJ 25 SJ 50 SJ 100 SJ 150 SJ 200 SJ 250 SJ 00 SJ HS 10 HS 25 HS 50 HS 100 HS 150 HS

21 Screw jacks with travelling ball nut (Md.B).1 Overall dimensins MA BS Series Md.B CYLINDRICAL END N Oe k7 p 20 + STROKE l P O V P A q O d j6 A/2 Z Q O H g7 O d j6 q L l B F n C E OO S I U J1 J1s G 20 BALL SCREW w t O z H7 Vers.1: single input shaft l F1 Vers.2: duble input shaft Vers.: flange and hllw shaft IEC Vers.4: flange and hllw shaft IEC + 2 nd shaft FLANGE J2s BELL-HOUSING J2 Vers.5: Vers.1 with bell-husing and cupling IEC Vers.6: Vers.2 with bell-husing and cupling IEC 82

22 .1 Overall dimensins MA BS Series Md.B Screw jacks with travelling ball nut (Md.B) SIZE MA 5 BS MA 10 BS MA 25 BS MA 50 BS MA 80 BS MA 150 BS MA 200 BS MA 50 BS BALL SCREW BS P h BS 25 P h BS 2 P h BS 40 P h BS 50 P h BS 6 P h BS 80 P h BS 100 P h A B C E F F G H I L O Q S U V Z M5, depth 10 M5, depth 12 M5, depth 10 M6, depth 14 M6, depth 14 M6, depth 14 M10, depth 20 M10, depth 25 d e l n M5, depth 10 M6, depth 14 M8, depth 16 M8, depth 16 M8, depth 16 M8, depth 16 M10, depth 24 M12, depth 2 p q t M M M70 2 M90 2 M90 2 M110 2 M150 M180 w z J1 6 B5/B14: 62 6 B5/B14: 69 6/71 B5: B5: B5: /90 B5: 120 J1s J2 J2s 6 B5: 0 6 B14: 5 71 B5: B14: B5: B14: B5: 20 6 B14: 71 B5: B14: B5: 0 71 B14: 6 B5: 7 71 B5: B5: B14: B5: B14: B5: 7 80 B14: 90 B5: 7 90 B14: 7 80 B5: B5: 20 80/90 B5: 90 B5: B14: B5: B14: B5: B14: 100 B5: B14: 90 B5: B14: /112 B /112 B5: /112 B14: /112 B14: B5: B14: 100/112 B5: /112 B14: 100/112 B /112 B14: 90 B5: /112 B5: B5: 100/112 B5: B5: B5: 5 12 B5: B5: B5: B5: 5 NOTE: fr ball nut dimensins, see ch..8 Ball nuts dimensins n page 70 8

23 Screw jacks with travelling ball nut (Md.B).1 Overall dimensins SJ BS Series Md.B, size CYLINDRICAL END N O e k7 20 Z O h g7 Q A Q l q A/2 O d j6 O h g7 F O O d j6 q L l E S J1 J2s G g OV 20 + STROKE BALL SCREW Vers.1: single input shaft B f l C I U Vers.2: duble input shaft THREADED FIXING HOLES Vers.: flange and hllw shaft IEC Vers.4: flange and hllw shaft IEC + 2 nd shaft f1 F1 O O1 FLANGE E1 U1 J1s THROUGH FIXING HOLES BELL-HOUSING J2 Vers.5: Vers.1 with bell-husing and cupling IEC Vers.6: Vers.2 with bell-husing and cupling IEC 84

24 Screw jacks with travelling ball nut (Md.B).1 Overall dimensins SJ BS Series Md.B, size SIZE BALL SCREW SJ 5 BS SJ 10 BS SJ 25 BS SJ 50 BS SJ 100 BS SJ 150 BS BS P h BS 25 P h BS 2 P h BS 40 P h BS 50 P h BS 6 P h A B C E E F F G I L O O1 M8, depth 14 9 M8, depth15 9 M10, depth M12, depth 16 1 M20, depth 0 17 M0, depth Q S U U V Z d e f f g h l q M4, depth 8 15 M6, depth M8, depth M8, depth M8, depth M8, depth v z J1 56 B5/B14: B5/B14: 62 6/71 B5: B5: B5: /90 B5: 120 J1s M6, depth1 (4 hles at 90 ) 56 B5: B14: 9 J2 6 B5: 98 J2s 6 B5: 9 M5, depth10 (6 hles at 60 ) 6 B5: 2 6 B14: 7 71 B5: B14: B5: B14: 15 M5, depth10 (6 hles at 60 ) 6 B5: B5: 9 80 B5: B14: B5: B14: B5: B14: B5: B14: 29 M6, depth14 (6 hles at 60 ) 80 B5: B5: 20 80/90 B5: B5: B14: B5: B14: B5: B14: B5: B14: 21 M6, depth14 (6 hles at 60 ) 90 B5: B14: /112 B5: /112 B14: B5: B14: 100/112 B5: /112 B14: M6, depth14 (6 hles at 60 ) 100/112 B5: /112 B14: /112 B5: 4 100/112 B14: NOTE: fr ball nut dimensins, see ch..8 Ball nuts dimensins n page 70 85

25 Screw jacks with travelling ball nut (Md.B).1 Overall dimensins SJ BS Series Md.B, size CYLINDRICAL END N Oe k7 g A 20 + STROKE v Oh g7 BALL SCREW Q l q O d j6 A/2 O h g7 f B F O O d j6 q l L l E S I J1 J2s C f1 F1 O O1 E1 Q Vers.1: single input shaft U Vers.2: duble input shaft THREADED FIXING HOLES Vers.: flange and hllw shaft IEC Vers.4: flange and hllw shaft IEC + 2 nd shaft FLANGE U1 THROUGH FIXING HOLES BELL-HOUSING J1s J2 Vers.5: Vers.1 with bell-husing and cupling IEC Vers.6: Vers.2 with bell-husing and cupling IEC 86

26 Screw jacks with travelling ball nut (Md.B).1 Overall dimensins SJ BS Series Md.B, size SIZE SJ 200 BS SJ 250 BS SJ 00 BS SJ 400 BS BALL SCREW BS 80 P h BS 100 P h BS 100 P h BS 120 P h A B C E E F F I L O O1 M0, depth 45 2 M0, depth 45 2 M0, depth 45 2 M0, depth 45 2 Q S U U d e f f g h l q M10, depth M10, depth M10, depth 22 12x8x55 M12, depth 28 16x10x60 v z J1 100/112 B5: /112 B5: 170 J1s 100/112 B5: 7 100/112 B5: 7 J2 12 B5: B5: 292 J2s 12 B5: B5: 62 NOTE: fr ball nut dimensins, see ch..8 Ball nuts dimensins n page 70 87

27 Screw jacks with travelling ball nut (Md.B).1 Overall dimensins HS Series CYLINDRICAL END N Oe k STROKE Oh g7 L11 L1 k1 OD1 j6 h1 q A q F f s B 20 g BALL SCREW Q B/2 Oh g7 L12 L2 k2 OD2 j6 h1 L10 J ODs ODc f7 OJ S: slid shaft, STANDARD diameter Q R: slid shaft, LARGER diameter MF: flange and hllw shaft IEC 88

28 .1 Overall dimensins HS Series Screw jacks with travelling ball nut (Md.B) SIZE BALL SCREW HS 10 HS 25 HS 50 HS 100 HS 150 HS 200 BS 25 P h BS 2 P h BS 40 P h BS 50 P h BS 6 P h BS 80 P h A B D D Dc Ds F L L L L L Q e f g M6, depth M8, depth M12, depth M16, depth 2 45 M18, depth M24, depth h h1 k1 M6, depth M8, depth M8, depth M10, depth M10, depth M12, depth k J J 71 B5: B5: B14: B5: B5: B14: B5: B14: B5: B14: B5: B14: B5: B14: B5: B5 15: B14: B5: B5 250: B14: B5: B5: B14: B5: B5: B14: B5: B5: B14: B5: B5: B14: B5: B5: B5: B5: 50 NOTE: fr ball nut dimensins, see ch..8 Ball nuts dimensins n page 70 89

29 Screw jacks with travelling ball nut (Md.B).14 Electric mtrs fitting IEC electric mtrs MA BS Series MA 5 BS MA 10 BS MA 25 BS MA 50 BS MA 80 BS MA 150 BS MA 200 BS MA 50 BS 6 B5 F F F B14 F F 71 B5 B B F F F B14 B B F 80 B5 B F F F B14 B 90 B5 B B B F F B14 B B B B5 B B B F B14 B B B 12 B5 B B 160 B5 B SJ BS Series SJ 5 BS SJ 10 BS SJ 25 BS SJ 50 BS SJ 100 BS SJ 150 BS SJ 200 BS SJ 250 BS 56 B5 F B14 F 6 B5 B F F B14 F 71 B5 B F F F B14 B F 80 B5 B F F F B14 B 90 B5 B B B F B14 B B B B5 B B B F F B14 B B B B B 12 B5 B B HS Series HS 10 HS 25 HS 50 HS 100 HS 150 HS B5 F 80 B5 F F B14 F F 90 B5 F F F B14 F F B5 F F F B14 F F 12 B5 F F B14 F 160 B5 F F - IEC flange with hllw shaft B - IEC bell-husing with cupling LINEARMECH Brushless Servmtrs Ball screw jacks can be equipped with Linearmech Brushless Servmtrs BM Series with metric flange dimensins, accrding t IEC 4-7, UNEL 0551 regulatins. Pssible fittings are described bellw: Servmtr Serie MA Serie SJ Serie HS BM 45 L IEC - SJ 5 BS BM 6 S IEC MA 5 BS, MA 10 BS SJ 10 BS BM 6 L IEC MA 5 BS, MA 10 BS, MA 25 BS SJ 10 BS, SJ 25 BS BM 82 S IEC MA 25 BS SJ 25 BS HS 10, HS 25 BM 82 L IEC MA 25 BS SJ 25 BS HS 10, HS 25 BM 102 S IEC MA 25 BS, MA 50 BS, MA 80 BS SJ 25 BS, SJ 50 BS, SJ 100 BS HS 25, HS 50 BM 102 L6 IEC MA 25 BS, MA 50 BS, MA 80 BS SJ 25 BS, SJ 50 BS, SJ 100 BS HS 25, HS 50 BM 102 L8 IEC MA 25 BS, MA 50 BS, MA 80 BS SJ 25 BS, SJ 50 BS, SJ 100 BS HS 25, HS 50 Fr technical data f servmtrs, please refer t ch.5 LINEARMECH serv mtrs n page 115. Flanges and bell-husings t specific drawing fr hydraulic mtrs r serv mtrs are available n request. 90

30 Screw jacks with travelling ball nut (Md.B).15 Accessries Bellws In applicatins with particular envirnment cnditins, bellws prtect the screw frm cntaminants. The usually supplied bellws are circular, sewn (duble seam), in NYLON with a PVC utside and inside cating. Fr special applicatin requirements, different executins r materials can be supplied n request. The bellws cause changes t the retracted and extended lengths and screw jack verall dimensins stated in the catalgue. On request, rders will be acknwledged with a screw jack drawing giving exact dimensins. Usually, bellws are fitted n bth sides: between the screw jack husing and the ball nut and between the nut and the ball screw end. Anyway, sme applicatins require nly ne f the tw bellws. The attachments dimensins f the bellw between the screw jack husing and the nut are determined by the screw jack parts dimensins, where the bellw is fixed, while the attachments dimensins f the bellw between ball nut and screw end depend n the applicatin, because the bellw is directly in cntact with the applicatin s structure. The prtective bellw is available fr all screw jack series (MA BS, SJ BS, HS). Ordering cde: B Y Y X X Lc Lc Lc X Y Y Y L screw thread STROKE X Lc Lc L screw thread STROKE X STROKE FLANGE COLLAR L screw thread STROKE L screw thread STROKE L screw thread STROKE - bellws attachment dimensins t be defined 91

31 Screw jacks with travelling ball nut (Md.B).15 Accessries Wrm wheel rtatin detectr Available fr screw jacks MA BS and SJ BS Series nly (nt fr HS Series). Sme applicatins require the pssibility t verify if the wrm wheel rtates while the wrm shaft is mving in rder t get infrmatin abut the gd cnditin and functining f the wrm wheel tthing. A cylindrical element, machined in rder t have a crwn f empty and full spaces, is fixed t the wrm wheel creating a phnic wheel that, while rtating, activates a crrespnding prximity switches. As utput f such prximity switch, activated and deactivated by the alternatin f empty and full spaces, a train f impulses is generated which cnfirms the rtatin f the wrm wheel. On the cntrary, the cnstant utput signal f the prximity switch means the stp f the wrm wheel. Safety nut The safety nut is a back-up feature t prevent the lad drpping in an uncntrlled manner in case f wrking nut balls failure. This can be caused by verlad r by achieving a critical wear level. The safety nut is an extensin t the main nut and changes the screw jack verall dimensins. It wrks with ne particular lad directin nly. Its psitin as regards the main nut is therefre cnditined by the lad directin. The safety nut des nt have balls inside, but a thread helix that traces the ball truck n the screw. With a nt wrn ut main nut, the thread f the nut des nt tuch the screw; in case the balls f the main nut shuld fail, the safety nut will tuch the screw and sustain the lad, causing a slithering between the screw and the safety nut threads. The safety nut is made in steel and therefre, in case it is activated, it is then necessary t replace bth screw and main nut. The safety nut is available fr all screw jack series (MA BS, SJ BS, HS). Ball screw diameter a &b Ob a Ball screw diameter a &b PULL lad 60 PUSH lad 60 Ordering cde: push Ordering cde: pull safety nut fr PUSH lad safety nut fr PULL lad a Ob 92

32 .15 Accessries Screw jacks with travelling ball nut (Md.B) ROTARY ENCODER Cde ENC.4 Hall-effect encder, incremental, bi-directinal Reslutin: 4 pulses per revlutin Output: PUSH-PULL 2 channels (A and B, phase difference 90 ) Input vltage: (8... 2) Vdc Max. cmmutable current (I ut ): 100 ma Max utput vltage drp: with lad cnnected t 0 and I ut = 100 ma: 4.6 V with lad cnnected t + V and I ut = 100 ma: 2 V Prtectin: against shrt circuit against input plarity inversin against any incrrect utput cnnectin Cable length: 1. m Prtectin: IP 55 The encder ENC.4 is available fr all screw jack series (MA BS, SJ BS, HS). Ordering cde: ENC.4 ROTARY ENCODER Cde EH5 Optical encder, incremental, bi-directinal Reslutin: 100 r 500 pulses per revlutin Output: PUSH-PULL 2 channels (A and B, phase difference 90 ) channel ZERO Input vltage: ( ) Vcc N-lad current: 100 ma Max. cmmutable current: 50 ma Cable length: 0.5 m Prtectin: IP 54 The encder ENC.4 is available fr all screw jack series (MA BS, SJ BS, HS). Ordering cde: EH 5 9

33 Screw jacks with travelling ball nut (Md.B).15 Accessries - MA BS Series Raised cver The husing f the screw jacks MA BS Md.B is enclsed inside tw threaded cvers, ne n the tp and ne n bttm. Screw jacks Md.B have always raised cver (CA) munted n the screw jack husing n the ppsite side f the acme screw, t prtect the rtating screw threaded end. The threaded cver n the screw side is always supplied as lw cver (CB) in standard executin, raised cver executin available n request. The raised cver CA with tleranced uter diameter acts as a centring diameter f the screw jack inside the machine structure. Ordering cde: CA - CA Trunnin munt The trunnin munt is blted t either the tp r the bttm f the screw jack husing and allws the screw jack pivting arund the axis defined by the trunnin munt s lateral pins. NOTE: the part f the machine where the nut is fixed must have tw cylindrical pins (r hles) with axes parallel t the trunnin munt pivts axis. MA 5 BS MA 10 BS MA 25 BS MA 50 BS MA 80 BS MA 150 BS MA 200 BS MA 50 BS A B &D &D H l S S S mass [kg] Ordering cde: SC (screw side) screw jacks with SC fixed n the screw side Ordering cde: SC (ppsite screw side) screw jacks with SC fixed n ppsite screw side 94

34 Screw jacks with travelling ball nut (Md.B).15 Accessries - SJ BS Series Screw jack husing fixing hles On the gear husing f screw jack SJ Series there are fixing hles, which can be threaded tapped hles (n bth husing fixing planes) r thrugh hles. The threaded hles psitin n the fixing plane can differ frm the thrugh hles psitin. Ordering cde: FF threaded hles (STANDARD) Ordering cde: FP thrugh hles (ON REQUEST) Trunnin munt The trunnin munt is blted t either the tp r the bttm f the screw jack husing and allws the screw jack pivting arund the axis defined by the trunnin munt s lateral pins. NOTE: the part f the machine where the nut is fixed must have tw cylindrical pins (r hles) with axes parallel t the trunnin munt pivts axis. SJ 5 BS SJ 10 BS SJ 25 BS SJ 50 BS SJ 100 BS SJ 150 BS SJ 200 BS SJ 250 BS SJ 00 BS A B &D &D H l S S S mass [kg] Ordering cde: SC (screw side) screw jacks with SC fixed n the screw side Ordering cde: SC (ppsite screw side) screw jacks with SC fixed n ppsite screw side 95

35 Screw jacks with travelling ball nut (Md.B).16 Ordering cde MA BS Series Md.B MA 50 BS Md.B RL Vers. (80 B5) U-RH C00 IT 5 SFN-D R N B2 B1 CB / CA AC -phase brake mtr 0.75 kw 4-ple 20/400 V 50 Hz IP 55 Ins. F 14 1 MA (screw jack MA BS Series) 2 Screw jack size page 65, Ball screw BS diameter lead page Md.B (Mdel: travelling nut) 5 Wrm gear rati page Input versin Vers.1, Vers.2, Vers., Vers.4, Vers.5, Vers.6 page 9 7 Screw jack munting and input shaft psitin U-RH, U-LH, D-RH, D-LH, H-RH, H-LH page 9 8 Screw jack strke length (ex.: C00 = 00 mm strke) 9 Ball screw accuracy grade IT r IT 5: whirled ball screw page 68 IT 7: rlled ball screw page Ball nut Nut cde page Accessries N B 1, B 2 CB, CA pull (push) 96 SC Screw end Bellws Lw cver, raised cver Safety nut fr PULL (r PUSH) lad Wrm wheel rtatin detectr Trunnin munt page 82 page 91 page 94 page 92 page 92 page Other accessries example: encder (with all relevant data) page 9 1 Other specificatins example: lubricant fr lw temperature 14 Mtr data 15 Filled in selectin sheet page Applicatin layut

36 Screw jacks with travelling ball nut (Md.B) UPWARD munting DOWNWARD munting CA Vers. PULL LOAD PUSH LOAD CB CA B1 B2 N N B2 B1 CA CB PUSH LOAD PULL LOAD Vers. CA UPWARD munting DOWNWARD munting 97

37 Screw jacks with travelling ball nut (Md.B).16 Ordering cde SJ BS Series Md.B SJ 50 BS Md.B RL Vers. (80 B5) U-RH FF C00 IT 5 SFN-D R N B2 B Series AC -phase brake mtr 0.75 kw 4-ple 20/400 V 50 Hz IP 55 Ins. F 14 1 SJ (screw jack SJ BS Series) 2 Screw jack size page 65, Ball screw BS diameter lead page Md.B (Mdel: travelling nut) 5 Wrm gear rati page Input versin Vers.1, Vers.2, Vers., Vers.4, Vers.5, Vers.6 page 9 7 Screw jack munting and input shaft psitin U-RH, U-LH, D-RH, D-LH, H-RH, H-LH page 9 8 Gear bx fixing hles FF, FP page 84, 86 9 Screw jack strke length (ex.: C00 = 00 mm strke) 10 Ball screw accuracy grade IT r 5: whirled ball screw page 68 IT 7: rlled ball screw page Ball nut Nut cde page Accessries N B 1, B 2 pull (push) SC 98 Screw end Bellws Safety nut fr PULL (r PUSH) lad Trunnin munt Wrm wheel rtatin detectr page 84, 86 page 91 page 92 page 95 page 92 1 Other accessries example: encder (with all relevant data) page 9 14 Other specificatins example: lubricant fr lw temperature 15 Mtr data 16 Filled in selectin sheet page Applicatin layut

38 Screw jacks with travelling ball nut (Md.B) UPWARD munting DOWNWARD munting FF Vers. FP PULL LOAD B1 PUSH LOAD B2 N N B2 B1 PUSH LOAD PULL LOAD FF Vers. FP UPWARD munting DOWNWARD munting 99

39 Screw jacks with travelling ball nut (Md.B).16 Ordering cde HS Series HS 50 R2 BS S scheme 10 S 180 U lat B C00 IT 5 SFN-D R N B2 B AC -phase brake mtr 0.75 kw 4-ple 20/400 V 50 Hz IP 55 Ins. F 16 1 HS (screw jack HS Series) 2 Screw jack size page 65, Wrm gear rati R1, R1.5, R2, R, R4 page Ball screw BS diameter lead page Main input S, R, MF, MA page 10 6 Kinematics scheme scheme 10, scheme 20 page 10 7 Additinal utput shaft (versin and psitin) S, R - 90, 180, 270 page 11 8 Screw jack munting psitin U, D, H page Screw jack fixing side side A - B - C - D - E - F page Screw jack strke length (ex.: C00 = 00 mm strke) 11 Ball screw accuracy grade IT r 5: whirled ball screw page 68 IT 7: rlled ball screw page Ball nut Nut cde page Accessries N B 1, B 2 pull (push) Screw end Bellws Safety nut fr PULL (r PUSH) lad page 88 page 91 page Other accessries example: encder (with all relevant data) page 9 15 Other specificatins 16 Mtr data 17 Applicatin layut

40 Screw jacks with travelling ball nut (Md.B) UPWARD munting DOWNWARD munting PULL LOAD PUSH LOAD B1 B2 N N B2 B1 PUSH LOAD PULL LOAD UPWARD munting DOWNWARD munting 101