STAR – Precision Ball Screw Assemblies

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STAR – Precision Ball Screw Assemblies Inquiries and Orders A special feature of this new catalog edition is a new system of order code. All nuts, screws and end machining details can now be defined with the order code. We have taken account of all former selection criteria as well as adding new ones. The diversity of possible combinations is limitless. Attention 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 last page of the catalog. If no drawing is available yet, please specify your wishes using the variable order code in the structure stipulated. Should you already have a drawing available as a CAD file (in Pro/E20, AutoCAD/Genius 14 or DXF formats), you can send us the data by e-mail (see the back cover of the catalog for our e-mail address). 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. Nominal diameters, leads Nominal diameter d 0 8 12 16 20 25 32 40 50 63 80 Overall lengths 2.5 5 10 12 Lead P 16 20 25 32 40 Precision-ground screws > ∅ 80 mm available upon request Overall length 12 RE 83 301/12.99
Nut types All nuts can be combined with all screws and all end machining options. The various versions and forms are shown below. Single nut with flange 1502-DIN 69 051, T.5 FEM-E-C Adjustable-preload single nut, 1512-DIN 69 051, T.5 SEM-E-C Cylindrical single nut 1512-/1532- ZEM-E-S Double nut with flange 1502-DIN 69 051, T.5 FDM-E-C Single nut with flange 1502-/1512-/1532- FEM-E-S Page 18 Page 22 Adjustable-preload single nut, 1512-/1532-/1552- SEM-E-S Page 20 Page 24 Page 26 Double nut with flange 1502- FDM-E-S Page 28 Page 30 RE 83 301/12.99 13 Mounting direction of nut types The following four drawings show the position of the left and right screw end. Centering diameter D 1 Centering diameter D 1 Lube port Centering diameter D 1 N.B.: The centering diameter on a nut with flange and the lube port on a cylindrical nut points to the right end of the screw.
Page 1 and 2: RE 83 301/12.99 STAR - Precision Ba
Page 3 and 4: STAR - Precision Ball Screw Assembl
Page 5 and 6: End machining details Bearings LAF
Page 7 and 8: Short nut length Available ex stock
Page 9 and 10: High axial load capacity Low fricti
Page 11: RE 83 301/12.99 11 Folding press La
Page 15 and 16: Order Code Precision Ball Screw Ass
Page 17 and 18: Ball screw with annealed ends For m
Page 19 and 20: D 5 Lube port at flange center L 3
Page 21 and 22: D 5 D 1 +0.7 L 5 L 3 L N.B.: On a p
Page 23 and 24: Lube port at flange center D5 +0.7
Page 25 and 26: Lube port at flange center L5 D5 D1
Page 27 and 28: L 11 RE 83 301/12.99 27 L L 6 L 7 L
Page 33 and 34: H 1 6x60° D 1 RE 83 301/12.99 33 E
Page 35 and 36: H 1 90° D 1 2 x B RE 83 301/12.99
Page 37 and 38: Friction-welded blanks made of prec
Page 39 and 40: Area of application The STAR - Grou
Page 41 and 42: Screw End Form 00, End not Annealed
Page 43 and 44: End Bearings for Screw Ends Form 01
Page 63 and 64:
H 2 D B 6 B 2 B RE 83 301/12.99 63
Page 65 and 66:
H 2 D d B 2 B D 1 RE 83 301/12.99 6
Page 67 and 68:
B1 H1 H2 B4 B4 H4 H3 B2 S3 L3 L2 2
Page 69 and 70:
H1 H2 H4 H3 B1 RE 83 301/12.99 69 L
Page 71 and 72:
D D LGF-B-… LGF-A-… with slotte
Page 73 and 74:
D D LGN-B-… LGN-A-… with slotte
Page 75 and 76:
Dimensions (mm) Weight complete d D
Page 77 and 78:
Housing nut GR - for angular contac
Page 79 and 80:
Load-carrying capacities and servic
Page 81 and 82:
Symbol definitions (excerpt): l0 =
Page 83 and 84:
Axial run-out t 8 ´ of the shaft (
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Overall Rigidity The rigidity of a
Page 87 and 88:
Screws with single nuts 2% preload
Page 89 and 90:
R nu (N/µm) Screws with double nut
Page 91 and 92:
Inserting the wiper-type seal Posit
Page 93 and 94:
For NLGI 2-greases: The nut has to
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Calculation Example Service life Op
Page 97 and 98:
Permissible axial load on screw F k
Page 99 and 100:
Lubrication, Mounting the Housing M
Page 101 and 102:
Average speed and average bearing l
Page 103 and 104:
Rexroth Star GmbH D-97419 Schweinfu
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