Precision Ball Screw Assemblies End Bearings and Nut Housings

Transcription

1 End earings and Nut Housings R310EN 3301 ( ) The Drive & ontrol ompany

2 2 osch Rexroth G Linear Motion and ssembly Technologies Screw drives R310EN 3301 ( ) Linear Precision Motion all Technology Screw ssemblies all Rail Systems Standard all Rail Systems Super all Rail Systems all Rail Systems with luminum Runner locks High Speed all Rail Systems orrosion Resistant all Rail Systems Wide all Rail Systems all Rail Systems with Integrated Measuring System raking and lamping Units for all Rail Systems Gear Racks for all Rail Systems Miniature all Rail Systems am Roller Guides Roller Rail Systems Standard Roller Rail Systems Wide Roller Rail Systems Heavy Duty Roller Rail Systems Roller Rail Systems with Integrated Measuring System raking and lamping Units for Roller Rail Systems Gear Racks for Roller Rail Systems Linear ushings and Shafts Linear ushings, Linear Sets, Shafts, Shaft Support Rails, Shaft Support locks all Transfer Units Traditional Engineering omponents Screw Drives Linear Motion Systems Linear Motion Slides all Screw Drive Toothed elt Drive Linear Modules ompact Modules Multi-xis Motion Systems MS Precision Modules all Rail Tables all Screw Drive Toothed elt Drive Rack and Pinion Drive Pneumatic Drive Linear Motor all Screw Drive Toothed elt Drive Linear Motor all Screw Drive all Screw Drive Linear Motor ontrollers, Motors, Electrical ccessories Linear ctuators

3 R310EN 3301 ( ) Screw Drives Linear Motion and ssembly Technologies osch Rexroth G 3 ontents Product Overview 4 pplication Examples 14 Inquiries and Orders 16 Dimension Tables 22 Nuts 22 Nut Housings 46 Screws 50 End Machining Details 54 Pillow lock Units 80 earings 88 Slotted Nuts and Housing Nuts 96 Technical Notes 98 cceptance onditions and Tolerance Grades 100 Preload and Rigidity 104 Friction Torques of Seals 110 Mounting 112 Lubrication 114 Design alculations 118 End earings, Design Notes, Mounting Instructions 122 End earings, Design alculations 124 Design alculation Service Form 126 Fax Inquiry/Order Form 127

4 4 osch Rexroth G Linear Motion and ssembly Technologies Screw drives R310EN 3301 ( ) Precision Product Overview all Screw Nuts ssemblies and Nut Housings Nuts Page Miniature series Miniature Single nut with flange FEM-E- 22 Diameter Lead P EO series Screw-in nut ZEV-E-S Single nut with flange and recirculation caps FZ-E-S Single nut with flange and recirculation caps FSZ-E-S Diameter Diameter Lead P 5 10 Lead P Screw-in nut Single nut with flange FZ-E-S Single nut with flange FSZ-E-S Speed series Single nut with flange and recirculation caps FEP-E-S 30 Diameter Lead P Standard series Single nut with flange DIN , Part 5 FEM-E- 32 djustable-preload single nut DIN , Part 5 SEM-E- Single nut with flange FEM-E-S djustable-preload single nut SEM-E-S ylindrical single nut ZEM-E-S Diameter Lead P Double nut with flange DIN , Part 5 FDM-E- 42 Single nut Double nut Double nut with flange FDM-E-S 44

5 R310EN 3301 ( ) Screw Drives Linear Motion and ssembly Technologies osch Rexroth G 5 Nut housings Page MGS for Standard series FEM-E-S FDM-E-S SEM-E-S MGD for Standard series FEM-E- FDM-E- SEM-E Diameter Lead P MGD MGS

6 6 osch Rexroth G Linear Motion and ssembly Technologies Screw drives R310EN 3301 ( ) Product Precision Overview all Screw Screws ssemblies and End Machining Screws Page Precision-rolled screw SN-R Tolerance grades T5, T7, T9 P5 available upon request cceptance conditions x P 6x1 / 6x2 / 8x1 / 8x2 upon request 8 x x 2, 5, x 5, 10, x 5, 20, x 5, 10, x 5, 10, 20, x 5 / 50 x 5 40 x 10, 12, 16, 20, x 10, 12, 16, 20, x 10, 20, x 10 standard, available at short notice (mm) Maximum length upon request Precision screw SN-F Tolerance grades P3, P5 P1 available upon request cceptance conditions x P 8 x x 5, x 5, 10, x 5, x 5, 10, x 5, 10, 20, x 5 / 50 x 5 40 x 10, 12, 16, 20, x 10, 12, 16, 20, x 10, 20, x 10, x 10, x 10, 20 (mm) Maximum length standard, available at short notice upon request Screw end machining 54 Lead P Diameter

7 R310EN 3301 ( ) Screw Drives Linear Motion and ssembly Technologies osch Rexroth G 7 Product Overview earings and ccessories Pillow block units Page SE-F 80 Lead P SE-L SE-F Diameter SE-L 86 SE-F SE-L SE-F SE-L earings LF 88 Lead P LN LD LL Diameter LF LN / LD Diameter Lead P LL Single parts Slotted nut NM, NMZ, NMG 96 Housing nut GWR 97

8 8 osch Rexroth G Linear Motion and ssembly Technologies Screw drives R310EN 3301 ( ) Product Precision Overview all Screw ssemblies Definition of a precision ball screw assembly DIN , Part 1 defines a ball screw as follows: n assembly comprising a ball screw shaft and a ball nut and which is capable of converting rotary motion into linear motion and vice versa. The rolling elements of the assembly are balls. s simple as it is to describe the elementary function of a precision ball screw assembly, in practice you are faced with a variety of types and applications. New nut series have increased the size of the catalog. The catalog now features additional miniature sizes and double-square leads. The range also includes an EO series for simple applications requiring low-cost solutions. The EOplus versions offer the same performance data in all respects as the Standard nuts. The lower cost was achieved here by simplifying the nut body design. The new series are tailor-made for specific applications or instances of use: Miniature series: extends the range to cover smaller sizes EO series: the low-cost solution through to the medium size range in the form of screw-in nut or single nut with flange Speed series: maximum linear speeds coupled with high load rating and short nut length The nuts with flanges from the Standard series are available in versions with either Rexroth or DIN mounting dimensions. The related standards (DIN and ISO 3408) are therefore fully supported by Rexroth. In order to make it easier for customers to decide between particular series and/or sizes in terms of delivery time as well, we have introduced, and categories for nuts. Each individual ball nut part number is assigned to a particular category. ategory parts are always stocked in the quantities customarily ordered. ertain stocks of ategory parts are also kept, but customers should inquire about the availability of these parts. ategory parts are exclusively made to order. lmost all single nuts in the version with backlash can be easily mounted on the screw by the customer, especially during servicing. In addition, the adjustablepreload single nut of the Standard series allows the customer to perform preload adjustment in-house. Matching nut housings for the Standard series and several types of end bearings are also stocked. Precision-rolled screws in a variety of sizes and of unequaled quality have long been an essential part of our product range. Our comprehensive, worldwide stocks guarantee fast response times in every location. vailability is one advantage, low prices another. Every nut featured in this catalog can be combined with the precision-rolled screws. The only exceptions are nut sizes 80x20. For these applications and other specific instances of use we manufacture screws to individual customer requirements by means of grinding or whirling. Precision-rolled screws can also be supplied without ball nuts to allow customers to machine the screw ends on their own facilities. Since hard machining has meantime become an established method, we no longer anneal the screw ends, a process which was previously necessary but which lowers the quality of the material. For special servicing cases, please consult us. Rexroth provide technical designers with diverse solutions for positioning and transport tasks with driven screws or also with driven nuts.

9 R310EN 3301 ( ) Screw Drives Linear Motion and ssembly Technologies osch Rexroth G 9 Smooth operation due to the design of the internal recirculation and optimal liftoff of balls from the raceway Preloaded or adjustable single nut Short nut length High load rating due to large number of balls No protruding parts, nut is easily mounted Smooth outer shell Effective, wiping sealing Large range of series available ex stock The WINKGT calculation software for designing and calculating precision ball screw assemblies for the operating system Windows 95 through XP is available on D-ROM. This makes it very easy for you to perform your own technical calculations. lternatively, you can arrange for Rexroth to produce a technical design calculation on your behalf by completing and returning the Design alculation Service Form on Page 126. For the simplified creation of drawings of our precision ball screw assemblies as a D file, see the section headed Inquiries and Orders on Page 16 and the Inquiry/Order form on Page 127.

10 10 osch Rexroth G Linear Motion and ssembly Technologies Screw drives R310EN 3301 ( ) Precision Product Overview all Screw ssemblies Rexroth Precision all Screw ssemblies with Driven Screws End bearings Rexroth precision ball screw assemblies are available with steel or aluminum pillow block units or bearing units complete with matching slotted nuts. Nut housings Rexroth nut housings for various flanged nuts complete the ready-to-install Rexroth product range. Rexroth precision pillow block units enable: Easy installation due to the variable fixture options and reference edges Use of premachined pin holes provides increased mounting accuracy vailable from stock in many versions and sizes

11 R310EN 3301 ( ) Screw Drives Linear Motion and ssembly Technologies osch Rexroth G 11 High axial load capacity High rigidity High dynamics Low friction

12 12 osch Rexroth G Linear Motion and ssembly Technologies Screw drives R310EN 3301 ( ) Product Precision Overview all Screw ssemblies You will find further system solutions in our catalog on Rexroth Drive Units. This catalog contains precision ball screw assemblies with a protecting housing, including versions with integrated screw supports, driven nuts with side drive timing belt and the matching servo motors. vailable Precision all Screw ssembly catalogs R310EN 3301 R310EN 3302 R310DE 3303 R310DE 3304 RDE RDE 83314, End earings and Nut Housings for Machine Tools, Super Heavy Duty Series (in preparation) Drive Units (in preparation), Miniature Series Rexroth all Screw ssemblies, EO Series

13 R310EN 3301 ( ) Screw Drives Linear Motion and ssembly Technologies osch Rexroth G 13 For machine tool and heavy duty applications with precision ball screw assemblies, please ask for the respective catalogs. For miniature and EO applications, catalogs containing plug-and-play ball screw assemblies are available. To perform particularly demanding positioning tasks we have developed the Integrated Measuring System for all Rail and Roller Rail Systems (atalog R310EN 2350). The linear measuring system in the rail then replaces the positioning information in the ball screw. This way, we are able to achieve a maximum of flexibility in design and a maximum of precision in operation by the customer.

14 14 osch Rexroth G Linear Motion and ssembly Technologies Screw drives R310EN 3301 ( ) pplication Examples Rexroth Precision all Screw ssemblies have been successfully implemented worldwide in the following areas: utting machine tools Forming machine tools utomation and handling Woodworking Electrical and electronics Printing and paper Injection molding machines Food and packaging industry Medical equipment Textile industry etc. Machining center Vertical axis with driven nut

15 R310EN 3301 ( ) Screw Drives Linear Motion and ssembly Technologies osch Rexroth G 15 Folding press Lathe

16 16 osch Rexroth G Linear Motion and ssembly Technologies Screw drives R310EN 3301 ( ) Inquiries and Orders ll nuts, screws and end machining details can now be defined with the order code (up to screw diameter 80 mm) as a complete precision ball screw assembly. We have taken account of all former selection criteria as well as adding new ones. The diversity of possible combinations is limitless. ttention is focused in particular on the definition of end machining details. For many design versions there is a prepared definition, providing you with a suitable solution for practically every application. If you wish to send us an inquiry, simply complete the form on Page 127 of this catalog. If no drawing is available, please specify your wishes using the variable ordering code. You will find a summary of the options on Page 19. Should you already have a drawing available as a D file (in Pro/E20, utod/genius14, utod 2000 or DXF formats), you can send us the data by (mail to: screws.brl@boschrexroth.de). If the drawing exists on paper only, you can, of course, send it to us by conventional mail. Each customer-specific precision ball screw assembly is issued with an ID number when an order is placed. If you have any subsequent queries, you need only quote this ID number. Using the ordering data from the catalog, you can also easily generate a drawing in utod14 format via the functionality provided on our website. guided dialogue is provided for data input so as to avoid typing errors, and all data selected can be checked within a few minutes against the drawing that has been generated. This drawing can then be used directly by our production departments, which accelerates order processing and delivery. The drawing generation functionality can be used without registering with us or entering a password or customer number. To access this functionality, visit Once inside the eshop, select, then all Screw ssemblies onfigurations, and a window will appear with boxes for input of the ordering data you have chosen from the catalog. Data can be input in two ways. In the default mode, onfiguration of options, the dialog is supported by meaningful default settings to minimize input errors. The Expert configuration mode allows much more rapid input of data, but requires a certain amount of experience. When the dialogue is completed, a click on the D-Model button leads to a further dialog box asking for input of the address for electronic transmission of the drawing to the user.

17 R310EN 3301 ( ) Screw Drives Linear Motion and ssembly Technologies osch Rexroth G 17 The ordering data given on Page 20 cover all the parameters of a precision ball screw assembly. Once you have defined the nominal diameter and lead and entered the overall length, the functionality guides you through a succession of dialog boxes allowing you to select the desired options. Nominal diameter, leads Nominal diameter Lead P Screws > ø 80 mm available upon request Overall length L ov of a precision ball screw assembly Overall length L ov

18 18 osch Rexroth G Linear Motion and ssembly Technologies Screw drives R310EN 3301 ( ) Nut type The various series versions and forms are shown below. Mounting direction of nut types Definition: The centering diameter on a nut with flange, the slotted nut on a driven nut and the lube bore on a cylindrical nut points to the right end of the screw. FEM-E- Single nut with flange Miniature series entering diameter D 1 Page 22 ZEV-E-S Screw-in nut EO series FZ-E-S Single nut with flange, EO series entering diameter D 1 Page 24 FSZ-E-S Single nut with flange, EOplus series Page 26 FEP-E-S Single nut with flange, Speed series Lube port Page 28 FEM-E- Single nut with flange DIN , Part 5 Standard series Page 30 SEM-E- djustable-preload single nut, DIN , Part 5 Standard series Lube port Page 32 FEM-E-S Single nut with flange Standard series Page 34 SEM-E-S djustable-preload single nut Standard series Page 36 ZEM-E-S ylindrical single nut Standard series Page 38 Slotted nut Page 40 FDM-E- Double nut with flange, DIN , Part 5 Standard series FDM-E-S Double nut with flange Standard series FR--S For driven nuts, please refer to catalog R310EN 3304 (in preparation) Driven nut Page 42 Page 44

19 R310EN 3301 ( ) Screw Drives Linear Motion and ssembly Technologies osch Rexroth G 19 Screw ends, forms for a left or right screw end asic version With keyway ut to size only T Page 54 Page Page 56 Page Page 58 Page Page Page Page 64 End friction-welded with/without keyway Page 66 Page Page 68 Page Page 70 Page Page 72 Page 72 Page Page 76 Page 76 Page 78 Machining of end face Z entering hole DIN 332-D S Hex socket

20 20 osch Rexroth G Linear Motion and ssembly Technologies Screw drives R310EN 3301 ( ) Ordering ode Precision all Screw ssembly SEM-E-S 20 x 5R x T7 R 81Z120 41Z Nut type FEM-E- Single nut with flange Miniature series ZEV-E-S Screw-in nut EO series FZ-E-S Single nut with flange EO series FSZ-E-S Single nut with flange EOplus series FEP-E-S Single nut with flange Speed series FEM-E- Single nut with flange to DIN , Part 5 FEM-E-S Single nut with flange, Rexroth mounting dimensions SEM-E- djustable-preload single nut to DIN , Part 5 SEM-E-S djustable-preload single nut, Rexroth mounting dimensions ZEM-E-S ylindrical single nut, Rexroth mounting dimensions FDM-E- Double nut with flange to DIN , Part 5 FDM-E-S Double nut with flange, Rexroth mount. dim. Size Seal Preload Precision Nominal diameter (mm) Lead (mm) Direction of lead R right, L left all diameter (mm) Number of ball track turns in the nut 0 none 2* reinforced seal 1 standard seal X not possible 0 standard backlash 4 10% (double nut) 1 reduced backlash 5 7% (double nut) 2** 5% (single nut) 6 3% (single nut) 3 2% (single nut) standard (P5) T5 T7 T9 precision-rolled screw P1 P3 P5 precision screw Screw Left screw end R precision-rolled Form Option Version F precision Z centering to DIN 332-D S hex socket K none Right screw end see left screw end Overall length L ov (mm) Documentation Lubrication 0 standard (acceptance test report) 2 torque test report is always supplied 3 lead and torque test report 1 lead test report 0 preserved 1 preserved and nut with basic greasing * only for 25 to 40 of the precision-rolled version; note higher frictional torque! ** only for 16 to 63 Note: It is also possible to process inquiries based on a customer s drawings.

21 R310EN 3301 ( ) Screw Drives Linear Motion and ssembly Technologies osch Rexroth G 21 For screws supplied separately; cut to size only T Screw SN 20 x 5 R x 3 X X T7 R 00 T T Screw Size Nominal diameter (mm) Lead (mm) Direction of lead R right, L left all diameter (mm) Seal Preload Precision Screw X not possible X not possible T5 T7 T9 precision-rolled screw R precision-rolled screw Left screw end Right screw end Form Option T cut to size only Version (corresponds to screw nominal diameter) see left screw end Overall length L ov (mm) Documentation Lubrication 0 standard (acceptance test report) 1 lead test report 0 preserved For separately supplied screws with annealed ends (special servicing cases) For special servicing cases involving precision-rolled screws SN-R with annealed ends, please consult us. 150 annealed 80 annealed 1250 overall length

22 22 osch Rexroth G Linear Motion and ssembly Technologies Screw drives R310EN 3301 ( ) Miniature Single Nut with Flange FEM-E- Miniature series Rexroth mounting dimensions Flange type With seals With backlash or reduced backlash For precision-rolled screws SN-R of tolerance grade T5, T7 = nominal diameter P = lead (R = right-hand, L = left-hand) D w = ball diameter i = number of ball track turns Ordering code: FEM-E- 6 x 2R x T7 R 83K060 41K ategory Size Part number Load ratings Speed* dyn. stat. x P x D w - i 0 v max. (N) (N) [m/min] 6 x 1 R x R x 2 R x R x 1 R x R x 2 R x R x 2.5R x R x 2 R x R x 5 R x 2-3 R x 10 R x 2-2 R * See P. 99 haracteristic speed n and P. 120 ritical speed n k

23 R310EN 3301 ( ) Screw Drives Linear Motion and ssembly Technologies osch Rexroth G 23 Lube port L 7 D 4 D 7 ϕ D 6 D 1 D 5 L14 ϕ L 3 L 4 L D w d2 d1 Dimensions (mm) Weight d 1 d 2 D 1 D 4 D 5 D 6 D 7 L L 3 L 4 L 7 L 14 ϕ m g6 ( ) (kg)

24 24 osch Rexroth G Linear Motion and ssembly Technologies Screw drives R310EN 3301 ( ) Screw-in Nut ZEV-E-S EO series Rexroth mounting dimensions Without seals (no initial greasing) Seals available on request With backlash For precision-rolled screws SN-R of tolerance grade T7, T9 = nominal diameter P = lead (R = right-hand, L = left-hand) D w = ball diameter i = number of ball track turns Ordering code: ZEV-E-S 20 x 5R x T7 R 81K120 41K ategory Size Part number Load ratings Speed* dyn. stat. x P x D w - i 0 v max. (N) (N) [m/min] 12 x 5R x 2-3 R x 10R x 2-2 R x 5R x 3-3 R x 10R x 3-3 R x 5R x 3-4 R * See P. 99 haracteristic speed n and P. 120 ritical speed n k

25 R310EN 3301 ( ) Screw Drives Linear Motion and ssembly Technologies osch Rexroth G 25 Lube port L 7 D4 D 8 ore for assembly wrench D 1 L 15 L D w d2 d1 G1 Dimensions (mm) acklash Weight d 1 d 2 D 1 D 4 D 8 G 1 L L 7 L 15 max. m h10 ±0.3 (mm) (kg) M20 x M20 x M26 x M26 x M35 x

26 26 osch Rexroth G Linear Motion and ssembly Technologies Screw drives R310EN 3301 ( ) Single Nut with Flange and Recirculation aps FZ-E-S EO series Rexroth mounting dimensions With seals With backlash For precision-rolled screws SN-R of tolerance grade T7, T9 = nominal diameter P = lead (R = right-hand, L = left-hand) D w = ball diameter i = number of ball track turns Ordering code: FZ-E-S 20 x 5R x T9 R 81K120 41K ategory Size Part number Load ratings Speed* dyn. stat. x P x D w - i 0 v max. (N) (N) [m/min] 20 x 5R x 3-4 R x 5R x 3-4 R x 10R x 3-4 R x 5R x R x 10R x R * See P. 99 haracteristic speed n and P. 120 ritical speed n k

27 R310EN 3301 ( ) Screw Drives Linear Motion and ssembly Technologies osch Rexroth G 27 Plastic recirculation cap at both ends Lube port at flange center D 7 S D 6 ϕ D 1 6x60 L 5 L 3 L D w d2 d1 D 1 D 5 L 10 Undercut located on mounting side Dimensions (mm) acklash Weight d 1 d 2 D 1 D 5 D 6 D 7 L L 3 L 5 L 10 S ϕ max. m -0.2 ±0.5 ( ) (mm) (kg) M M M M M

28 28 osch Rexroth G Linear Motion and ssembly Technologies Screw drives R310EN 3301 ( ) Single Nut with Flange and Recirculation aps FSZ-E-S EOplus series Rexroth mounting dimensions EOplus load ratings in accordance with Standard series (see P. 36) With seals With backlash, reduced backlash, preload 2%; 3%; 5% For precision-rolled screws SN-R of tolerance grade T5, T7, T9 and precision screws SN-F of tolerance grade P3, P5 = nominal diameter P = lead (R = right-hand, L = left-hand) D w = ball diameter i = number of ball track turns Ordering code: FSZ-E-S 20 x 5R x T7 R 81K120 41K ategory Size Part number Load ratings Speed* dyn. stat. x P x D w - i 0 v max. (N) (N) [m/min] 20 x 5R x 3-4 R x 5R x 3-4 R x 10R x 3-4 R x 5R x R x 10R x R x 20R x R x 5R x R x 10R x 6-4 R x 20R x 6-3 R * See P. 99 haracteristic speed n and P. 120 ritical speed n k

29 R310EN 3301 ( ) Screw Drives Linear Motion and ssembly Technologies osch Rexroth G 29 Plastic recirculation cap Lube port at flange center D 7 L 10 S D 6 ϕ D D1 D D 5 6x60 L 5 L 3 L 4 L Plastic recirculation cap D w Note: On a precision screw SN-F, the root diameter d 2 can be smaller by max. 0.3 mm for manufacturing reasons. d2 d1 Dimensions (mm) Weight d 1 d 2 D 1 D 5 D 6 D 7 L L 3 L 4 L 5 L 10 S ϕ m g6 ± 0.5 ( ) (kg) M M M M M M M8x M8x M8x

30 30 osch Rexroth G Linear Motion and ssembly Technologies Screw drives R310EN 3301 ( ) Single Nut with Flange and Recirculation aps FEP-E-S Speed series Rexroth mounting dimensions With seals With backlash, reduced backlash or preload 2% For precision-rolled screws SN-R (quadruple) of tolerance grade T5, T7, T9 = nominal diameter P = lead (R = right-hand, L = left-hand) D w = ball diameter i = a x b a earing turns per thread b Number of bearing threads on the screw Ordering code: FEP-E-S 25 x 25R x x4 1 0 T5 R 81K170 41K ategory Size Part number Load ratings Speed* dyn. stat. x P x D w - i 0 v max. (N) (N) [m/min] 20 x 40R x x 4 R x 25R x x 4 R x 32R x x 4 R * See P. 99 haracteristic speed n and P. 120 ritical speed n k

31 R310EN 3301 ( ) Screw Drives Linear Motion and ssembly Technologies osch Rexroth G 31 L 5 L 8 Plastic recirculation cap Lube port D 7 S D 6 ϕ D 1 D1 6x60 L 3 L L 4 D w d2 d1-2 D 5 Plastic recirculation cap Dimensions (mm) Weight d 1 d 2 D 1 D 5 D 6 D 7 L L 3 L 4 L 5 L 8 S ϕ m g6 ±0.3 ( ) (kg) M M M

32 32 osch Rexroth G Linear Motion and ssembly Technologies Screw drives R310EN 3301 ( ) Single Nut with Flange FEM-E- Standard series Mounting dimensions to DIN , Part 5 Flange type With standard seals Reinforced seals, see Page 110 With backlash, reduced backlash, preload 2%; 3%; 5% For precision-rolled screws SN-R of tolerance grade T5, T7, T9 and precision screws SN-F of tolerance grade P3, P5; P1 upon request = nominal diameter P = lead (R = right-hand, L = left-hand) D w = ball diameter i = number of ball track turns Ordering code: FEM-E- 20 x 5R x T7 R 82Z120 41Z ategory Size Part number Load ratings Speed* dyn. stat. x P x D w - i 0 v max. (N) (N) [m/min] 16 x 5R x 3-4 R x 10R x 3-3 R x 16R x 3-3 R x 5R x 3-4 R x 20R x R x 5R x 3-4 R x 10R x 3-4 R x 25R x R x 5R x R x 10R x R x 20R x R x 32R x R x 5R x R x 10R x 6-4 R x 12R x 6-4 R x 16R x 6-4 R x 20R x 6-3 R x 40R x 6-3 R x 5R x R x 10R x 6-6 R x 12R x 6-6 R x 16R x 6-6 R x 20R x R x 40R x R x 10R x 6-6 R x 20R x R x 40R x R x 10R x R x 20R x R x 10R x R x 20R x R x 10R x R x 20R x R * See P. 99 haracteristic speed n and P. 120 ritical speed n k

33 S R310EN 3301 ( ) Screw Drives Linear Motion and ssembly Technologies osch Rexroth G 33 Lube port at flange center** L 10 D 7 32 D 5 D D L 9 2 D 6 Note: On a precision screw SN-F, the root diameter d 2 can be smaller by max. 0.3 mm for manufacturing reasons. On a size 20x20 precision-rolled screw SN-R, d 1 = 19 mm. L 3 L 4 D w L d2 d D 7 40 S D 6 30 L 9 1 Dimensions (mm) Weight d 1 d 2 D 1 D 5 Hole D 6 D 7 L L 3 L 4 L 9 L 10 S** m g6 pattern (kg) M M M M M M M M M M M M M8x M8x M8x M8x M8x M8x M8x M8x M8x M8x M8x M8x M8x M8x M8x M8x M8x M8x M8x M8x M8x ** Lube port machining: flat surface L 3 13 mm, countersink L 3 > 14 mm

34 34 osch Rexroth G Linear Motion and ssembly Technologies Screw drives R310EN 3301 ( ) djustable-preload Single Nut SEM-E- Standard series Mounting dimensions to DIN , Part 5 Flange type With standard seals Reinforced seals, see Page 110 djustable preload For precision-rolled screws SN-R of tolerance grade T5, T7, T9 and precision screws SN-F of tolerance grade P3, P5; P1 upon request = nominal diameter P = lead (R = right-hand, L = left-hand) D w = ball diameter i = number of ball track turns Ordering code: SEM-E- 20 x 5R x T7 R 82Z120 41Z ategory Size Part number Load ratings Speed* entering diameter D 1 dyn. stat. after adjustment x P x D w - i 0 v max. (mm) (N) (N) [m/min] min. max. 16 x 5R x 3-4 R x 10R x 3-3 R x 16R x 3-3 R x 5R x 3-4 R x 20R x R x 5R x 3-4 R x 10R x 3-4 R x 25R x R x 5R x R x 10R x R x 20R x R x 32R x R x 5R x R x 10R x 6-4 R x 12R x 6-4 R x 20R x 6-3 R x 40R x 6-3 R x 5R x R x 10R x 6-6 R x 12R x 6-6 R x 20R x R x 40R x R x 10R x 6-6 R x 20R x R x 40R x R x 10R x R x 20R x R * See P. 99 haracteristic speed n and P. 120 ritical speed n k

35 S R310EN 3301 ( ) Screw Drives Linear Motion and ssembly Technologies osch Rexroth G 35 Lube port** L 8 D 7 32 L 5 L 10 D 5 D D D L 9 2 D 6 L 3 L 4 L D 7 40 S D w 30 d2 d D 6 L 9 1 Note: On a precision screw SN-F, the root diameter d 2 can be smaller by max. 0.3 mm for manufacturing reasons. On a size 20x20 precision-rolled screw SN-R, d 1 = 19 mm. Dimensions (mm) Weight d 1 d 2 D 1 D 5 Hole D 6 D 7 L L 3 L 4 L 5 L 8 L 9 L 10 S** m f9 pattern (kg) M M M M M M M M M M M M M8x M8x M8x M8x M8x M8x M8x M8x M8x M8x M8x M8x M8x M8x M8x ** Lube port machining: flat surface L 3 13 mm, countersink L 3 > 14 mm

36 36 osch Rexroth G Linear Motion and ssembly Technologies Screw drives R310EN 3301 ( ) Single Nut with Flange FEM-E-S Standard series Rexroth mounting dimensions With standard seals Reinforced seals, see Page 110 With backlash, reduced backlash, preload 2%; 3%; 5% For precision-rolled screws SN-R of tolerance grade T5, T7, T9 and precision screws SN-F of tolerance grade P3, P5; P1 upon request = nominal diameter P = lead (R = right-hand, L = left-hand) D w = ball diameter i = number of ball track turns Ordering code: FEM-E-S 20 x 5R x T7 R 82Z120 41Z ategory *** *** *** *** *** *** *** *** Size Part number Load ratings Speed* dyn. stat. x P x D w - i 0 v max. (N) (N) [m/min] 8 x 2.5R x R x 5R x 2-3 R x 10R x 2-2 R x 5R x 3-4 R x 10R x 3-3 R x 16R x 3-2 R x 5R x 3-4 R x 20R x R x 5R x 3-4 R x 10R x 3-4 R x 25R x R x 5R x R x 10R x R x 20R x R x 32R x R x 5R x R x 10R x 6-4 R x 20R x 6-3 R x 40R x 6-2 R x 5R x R x 10R x 6-6 R x 16R x 6-6 R x 20R x R x 40R x R x 10R x 6-6 R x 20R x R x 40R x R x 10R x R x 20R x R x 10R x R x 20R x R x 10R x R x 20R x R * See P. 99 haracteristic speed n and P. 120 ritical speed n k *** an be replaced in these sizes by FSZ-E-S

37 S R310EN 3301 ( ) Screw Drives Linear Motion and ssembly Technologies osch Rexroth G 37 Lube port** at flange center L D 7 S D 7 D 7 S D5 D D D 6 ϕ D 6 ϕ D 6 ϕ L 3 L 5 L 4 L F1 Lube port at flange center 4x90 6x60 6 D 7 8x45 D w S D L 3 L D1 L 4 F2 d2 d1 Note: On a precision screw SN-F, the root diameter d 2 can be smaller by max. 0.3 mm for manufacturing reasons. On a size 20x20 precision-rolled screw SN-R, d 1 = 19 mm. D 6 10x36 ϕ Dimensions (mm) Weight d 1 d 2 D 1 D 5 Hole D 6 D 7 Type L L 3 L 4 L 5 L 10 S** ϕ m g6 pattern ( ) (kg) F F M F M F M F M F M F M F M F M F M F M F M F M F M F M F M8x F M8x F M8x F M8x F M8x F M8x F M8x F M8x F M8x F M8x F M8x F M8x F M8x F M8x F M8x F M8x F M8x F M8x ** Lube port machining: flat surface L 3 13 mm, countersink L 3 > 14 mm. For size 8 x 2.5, a funnel-type lube nipple DIN 3405 is provided.

38 38 osch Rexroth G Linear Motion and ssembly Technologies Screw drives R310EN 3301 ( ) djustable-preload Single Nut SEM-E-S Standard series Rexroth mounting dimensions With standard seals Reinforced seals, see Page 110 djustable preload For precision-rolled screws SN-R of tolerance grade T5, T7, T9 and precision screws SN-F of tolerance grade P3, P5; P1 upon request With left-hand thread in some versions = nominal diameter P = lead (R = right-hand, L = left-hand) D w = ball diameter i = number of ball track turns Ordering code: SEM-E-S 20 x 5R x T7 R 82Z120 41Z ategory Size Part number Load ratings Speed* entering diameter D 1 dyn. stat. after adjustment x P x D w - i 0 v max. (mm) (N) (N) [m/min] min. max. 8 x 2.5R x R x 5R x 2-3 R x 10R x 2-2 R x 5R x 3-4 R x 10R x 3-3 R x 16R x 3-2 R x 5R x 3-4 R x 20R x R x 5R x 3-4 R x 10R x 3-4 R x 25R x R x 5R x R x 5L x R x 10R x R x 20R x R x 32R x R x 5R x R x 5L x R x 10R x 6-4 R x 10L x 6-4 R x 20R x 6-3 R x 40R x 6-2 R x 5R x R x 10R x 6-6 R x 20R x R x 40R x R x 10R x 6-6 R x 20R x R x 40R x R x 10R x R x 20R x R * See P. 99 haracteristic speed n and P. 120 ritical speed n k

39 R310EN 3301 ( ) Screw Drives Linear Motion and ssembly Technologies osch Rexroth G 39 Lube port** at flange center L 5 Right Left L S S 60 ϕ ϕ D5 D D D D 6 D 7 D 6 D 7 L 3 L L ø6 3.4 D 7 60 D w Version for 8 x 2.5 R x D5 9 D1 L 3 L 4 D 6 7 S d2 d1 Note: On a precision screw SN-F, the root diameter d 2 can be smaller by max. 0.3 mm for manufacturing reasons. On a size 20x20 precisionrolled screw SN-R, d 1 = 19 mm. Dimensions (mm) Weight d 1 d 2 D 1 D 5 Hole D 6 D 7 L L 3 L 4 L 5 L 10 S** ϕ m f9 pattern ( ) (kg) M M M M M M M M M M M M M M M M8x M8x M8x M8x M8x M8x M8x M8x M8x M8x M8x M8x M8x M8x M8x ** Lube port machining: flat surface L 3 13 mm, countersink L 3 > 14 mm. For size 8 x 2.5, a funnel-type lube nipple DIN 3405 is provided.

40 40 osch Rexroth G Linear Motion and ssembly Technologies Screw drives R310EN 3301 ( ) ylindrical Single Nut ZEM-E-S Standard series Rexroth mounting dimensions With standard seals Reinforced seals, see Page 110 With backlash, reduced backlash, preload 2%; 3%; 5% For precision-rolled screws SN-R of tolerance grade T5, T7, T9 and precision screws SN-F of tolerance grade P3, P5; P1 upon request With left-hand thread in some versions = nominal diameter P = lead (R = right-hand, L = left-hand) D w = ball diameter i = number of ball track turns Ordering code: ZEM-E-S 20 x 5R x T7 R 82Z120 41Z ategory ** ** ** ** ** ** ** ** ** ** ** Size Part number Load ratings Speed* dyn. stat. v max. x P x D w - i (N) 0 (N) [m/min] 8 x 2.5R x R x 2R x R x 5R x 2-3 R x 5R x 2-3 R x 10R x 2-2 R x 10R x 2-2 R x 5R x 3-4 R x 5L x 3-4 R x 5R x 3-4 R x 10R x 3-3 R x 10R x 3-3 R x 10R x 3-3 R x 16R x 3-2 R x 16R x 3-2 R x 16R x 3-3 R x 5R x 3-5 R x 5R x 3-4 R x 20R x R x 20R x R x 5R x 3-4 R x 10R x 3-4 R x 25R x R x 25R x R x 5R x R x 10R x R x 20R x R x 20R x R x 32R x R x 32R x R x 5R x R x 5R x R x 10R x 6-4 R x 20R x 6-3 R x 40R x 6-2 R x 40R x 6-3 R x 5R x R x 10R x 6-6 R x 20R x R x 10R x 6-6 R * See P. 99 haracteristic speed n and P. 120 ritical speed n k ** Special nuts for Rexroth modules and drive units

41 R310EN 3301 ( ) Screw Drives Linear Motion and ssembly Technologies osch Rexroth G 41 Lube port 0.2 L 11 L 6 T 1 D 1 D 4 L 7 L D w Note: On a precision screw SN-F, the root diameter d 2 can be smaller by max. 0.3 mm for manufacturing reasons. On a size 20x20 precision-rolled screw SN-R, d 1 = 19 mm. d2 d1 Dimensions (mm) Weight d 1 d 2 D 1 D 4 L L 6 L 7 L 11 T 1 m g6 ± P (kg)