Precision Lead Screws

Transcription

1 Precision Lead Screws ov-precision_lead_screws_divider - Updated

2 Precision Lead Screws Technical Information Precision lead screws ov-precision_lead_screws_technical_info - Updated Precision Lead Screws from Automotion Components Precision lead screws The high lead thread form maximises linear motion and minimises shaft rotation. The close tolerance, free running nuts are individually matched to their lead screws and are ideal for miniature applications requiring rotary to linear, or linear to rotary actuation. Anti-backlash nuts For applications requiring precision positioning there is now a newly patented Anti-backlash nut. This device, consisting of only three components, utilises the constant force of a compression spring to push two halves apart. This action eliminates any play (backlash) which exists between the internal thread of the nut and the external screw thread. To ensure accuracy and repeatability the nut can be fine tuned through the use of many available spring constants, to meet any preload design requirements. Lead screw specification Lead error Repeatability Straightness Backlash Temperature range Design considerations High precision lead screw ±0,2mm/300mm 0,01mm 0,03mm/100mm 0,08mm (zero when using anti-backlash nut) -30 C to +90 C Critical speed The critical speed of a lead screw is the maximum speed (rpm) before the screw will become dynamically unstable. This results when the forced frequency of the rotating screw corresponds to its natural frequency. Its value is dependent on the length of the screw, the diameter of the thread, and the support configuration. The critical speed value is governed by the following equation. Critical screw speed (RPM) = K x C x 10 6 x (d/l 2 ) Where; K = End support factor 0,36 one end fixed, other free 1,00 simple supports both ends 1,47 one end fixed, one simple 2,23 both ends fixed C = factor 4,5 for Stainless Steel screws 1,6 for Aluminium screws d = Root diameter of the screws L = Length between bearing supports a website from Automotion Components

3 Technical Information Precision lead screws Precision Lead Screws Load In order to properly incorporate a lead screw into a design, load requirements must be taken into account. These numbers are based on the shear of the nuts and does not take shaft buckling into account. Wherever possible, nuts should be positioned so as to be put in tension, pulling the load. This eliminates the need for buckling considerations. Listed below are some helpful formulae to assist in proper lead screw selection. Where; K = End support factor 0,25 one end fixed, other free (figure 1) 1,00 simple supports both ends (figure 2) 2,00 one end fixed, one simple (figure 3) 4,00 both ends fixed (figure 4) Torque to move a load (T) = F x L/2 x x E Where; F = Load L = Lead E = Efficiency (see product pages) End fixing configurations Critical load (N) = K x C x 10 6 x ( /D 2 ) Figure 1 Figure 3 Double bearing, one end only Double bearing one end, single bearing other end Figure 2 Figure 4 Single bearing both ends C = factor 13,4 for Stainless Steel screws 4,8 for Aluminium screws d = Root diameter of the screws D = Length between bearing supports Double bearing both ends Precision Lead Screws from Automotion Components ov-precision_lead_screws_technical_info_2 - Updated a website from Automotion Components

4 Precision Miniature Lead Screws Overview Precision Lead Screws Select the relevant size lead screw diameter and load required. These are precision, high helix lead screws from stainless steel (304 grade) We can cut length to suit and/or machine the ends to your requirements They have an accumulative lead error of ±0.20/300mm (C10 grade) The actual clearance depends on the nut selected L1350 standard flanged nut or L1351 antibacklash nut Nuts are very smooth running with little friction. They are made from plastic resin (PPS). The anti-backlash nuts are longer than the standard length nuts as they incorporate a spring pushing the two halves of the unit apart. Lead screw Ø Lead (distance travelled per revolution) End machining to suit miniature bearing support units End Machining l 4 l 5 d 1 d 5 Floating end Fixed end Screw Ø Type Floating Fixed d 1 l 4 l 5 d 5 x p 4 Pillow L L Flanged L L , Pillow L L ,73 5,5 4,5 0 0, ,5 7 M4x0,5 6 Flanged L L ,010 6 Pillow L L , , ,73 6,5 5,5 0, ,5 7 M5x0,5 6 Flanged L L ,028-0,06 8 Pillow L L ,7 8 6,8 +0,1 0,8 +0, M6x0,75 8 Flanged L L Pillow L L , ,7 8 6,8 0, ,5 M8x1,0 10 Flanged L L ,035 +0,05 0,5 +0, ,5 6,5 M3x0,5 ov-precision_lead_screws_overview - Updated a website from Automotion Components

5 Miniature Fixed Support Units for miniature lead screws L1353 Generally used with small diameter lead screws - see technical pages for lead screw core diameters and end machining required. Use with floating support unit (L1355). For required end machining of the lead screws see technical pages. End machining of lead screws on request. Order No. d 1 +0, h 2 w 1 w 2 h 3 w 3 w 4 w 5 w 6 L ,5 24, ,5 6,25 4,3 7,3 3, ,5 11,0 5,5 16,5 L ,0 27, ,0 7,0 6,0 9,5 3, ,0 11,5 5,5 17,5 L ,5 30, ,0 7,5 8,0 11,5 4, ,0 12,5 5,5 18,5 L ,5 35, ,0 8,5 9,5 13,3 5, ,5 16,0 7,5 22,0 L ,0 41, ,0 10,0 11,5 16,5 5, ,0 18,5 9,0 26,0

6 Miniature Flanged Fixed Support Units for miniature lead screws L1354 Generally used with small diameter lead screws - see technical pages for lead screw core diameters and end machining required. Use with floating support unit (L1356). For required end machining of the lead screws see technical pages. End machining of lead screws on request. Order No. d , l w 1 t 1 t 2 d 5 d 6 d 7 d 8 w 2 w 3 w 4 w 5 L ,5 3 7,5 4,3 7,3 11,0 3,5 1,5 11,0 5,5 16,5 L ,5 3 8,5 6,0 9,5 14,0 3,5 1,5 11,5 5,5 1,5 L ,0 3 10,0 8,0 11,5 17,0 3,5 2,0 12,5 5,5 18,5 L ,0 4 12,0 9,5 13,3 18,5 4,5 2,5 16, 7,5 22,0 L ,0 4 16,0 11,5 16,5-4,5 3,0 18,5 9,0 26,0

7 Miniature Floating Support Units for miniature lead screws L1355 Generally used with small diameter lead screws - see technical pages for lead screw core diameters and end machining required. Use with fixed support unit (L1353). For required end machining of the lead screws see technical pages. End machining of lead screws on request. Order No. d 1 +0, h 2 w 1 w 2 h 3 L ,5 24, ,5 L ,0 27, ,5 L ,5 30, ,5 L ,5 35, ,5 L ,0 41, ,5

8 Minature Flanged Floating Support Units for miniature lead screws L1356 Generally used with small diameter lead screws - see technical pages for lead screw core diameters and end machining required. Use with fixed support unit (L1354). For required end machining of the lead screws see technical pages. End machining of lead screws on request. Order No. d , l w 1 t 1 t 2 d 5 d 6 d 7 L ,0 3,5 L ,0 3,5 L ,0 3,5 L ,5 4,5 L ,5

9 Fixed Rectangular Support Units (AK) L1388 Standard units are suitable for ball screws and lead screws to C5/C7 accuracy grade. The bearings are not preloaded and have a maximum axial clearance of 18µ. of the screws see technical pages. Electroless nickel plated versions of these bearing mounts are available for clean room and other applications. For lead screw sizes up to 80 and ball screw sizes up to 63 see part no. L1392. Order No. For lead screw o.d Ø<> For ball screw o.d Ø<> d 1 l 4 ±0,02 w 1 w 2 w 3 w 4 L1388.AK , ,5 6 L1388.AK , ,5 6 L1388.AK , ,0 5 L1388.AK , ,0 10 L1388.AK , ,0 14 Order No. h 2 h 3 ±0,02 h 4 A/F w 5 w 6 Max axial load Kgf L1388.AK M3 9 14, L1388.AK M4 9 14, L1388.AK M , L1388.AK M , L1388.AK M5 11 7,

10 Floating Rectangular Support Units (AF) L1389 Standard units are suitable for ball screws and lead screws to C5/C7 accuracy grade. The bearings are not preloaded and have a max. axial clearance of 18µ. of the screws see technical pages. Electroless nickel plated versions of these bearing mounts are available for clean room and other applications. For lead screw sizes up to 80 and ball screw sizes up to 63 see part no. L1393. Order No. For lead screw o.d ø<> For ball screw o.d ø<> d 1 l 4 ± 0,02 w L1389.AF ,0 20 L1389.AF ,0 20 L1389.AF ,0 20 L1389.AF ,5 26 L1389.AF ,5 30 Order No. h 2 h 3 ± 0,02 h 4 Max axial load Kgf Max axial load Kgf L1389.AF L1389.AF L1389.AF L1389.AF L1389.AF

11 Fixed Round Support Units (FK) L1390 Standard units are suitable for ball screws and lead screws to C5/C7 accuracy grade. The bearings are not preloaded and have a max. axial clearance of 18µ. of the screws see technical pages. Electroless nickel plated versions of these bearing mounts are available for clean room and other applications. Order No. For lead screw o.d ø<> For ball screw o.d ø<> d 1 l 4 l 5 l 6 L1390.FK ,5 18,5 10,5 6 5,5 3,5 L1390.FK ,0 22,0 13,0 7 5,5 3,5 L1390.FK ,0 26,0 14,0 9 7,0 4,0 L1390.FK ,0 29,5 17,0 10 7,5 5,0 L1390.FK ,0 29,5 17,0 10 7,5 5,0 L1390.FK ,0 36,0 17, ,0 6,0 L1390.FK ,0 47,0 23, ,0 9,0 L1390.FK ,0 50,0 30,0 22 8,0 10,0 L1390.FK ,0 60,0 30, ,0 10,0 L1390.FK ,0 61,0 32, ,0 12,0 Order No. l 7 l 8 l 9 g6 d 5 d 6 d 7 w 1 w 2 L1390.FK05 3,0 5, M3 6,5 3, L1390.FK06 4,5 6, M3 6,5 3, L1390.FK08 5,0 7, M3 6,5 3, L1390.FK10 8,5 6, M3 8,0 4, L1390.FK12 8,5 6, M4 8,0 4, L1390.FK15 12,0 8, M4 9,5 5, L1390.FK17 14,0 12, M4 11,0 6, L1390.FK20 12,0 14, M4 11,0 6, L1390.FK25 20,0 17, M5 15,0 9, L1390.FK30 17,0 18, M6 17,5 11,

12 Floating Round Support Units (FF) L1391 Standard units are suitable for ball screws and lead screws to C5/C7 accuracy grade. The bearings are not preloaded and have a max. axial clearance of 18µ. of the screws see technical pages. Electroless nickel plated versions of these bearing mounts are available for clean room and other applications. Order No. For lead screw o.d ø<> For ball screw o.d ø<> d 1 H7 l 4 g6 L1391.FF , L1391.FF , L1391.FF , L1391.FF , L1391.FF , L1391.FF , L1391.FF , L1391.FF , Order No. d 5 d 6 w Max axial load Kgf Max static load Kgf L1391.FF ,5 3, L1391.FF ,5 3, ZZ 195 L1391.FF ,0 4, ZZ 214 L1391.FF ,5 5, ZZ 240 L1391.FF ,0 6, L1391.FF ,0 6, L1391.FF ,0 9, L1391.FF ,0 11,

13 Fixed Rectangular Support Units (BK) L1392 Standard units are suitable for ball screws and lead screws to C5/C7 accuracy grade. The bearings are not preloaded and have a max. axial clearance of 18µ. of the screws see technical pages. Electroless nickel plated versions of these bearing mounts are available for clean room and other applications. Order No. For lead screw o.d ø<> For ball screw o.d ø<> d 1 H7 l 4 ± 0,02 w 1 w 2 w 3 w 4 h 2 h 3 ± 0,02 L1392.BK ,5 22 L1392.BK ,5 25 L1392.BK ,0 28 L1392.BK ,0 39 L1392.BK ,0 34 L1392.BK ,0 48 L1392.BK ,0 51 L1392.BK ,0 52 L1392.BK ,0 60 Order No. h 4 h 5 d 5 A/F w 5 w 6 Max axial load Kgf L1392.BK ,0 5,5 M3 10,8 6, L1392.BK ,0 5,5 M4 10,8 6, L1392.BK ,5 5,5 M4 11,0 6, L1392.BK ,5 6,6 M4 14,0 9, L1392.BK ,5 6,6 M4 14,0 9, L1392.BK ,0 9,0 M5 17,5 11, L1392.BK ,0 11,0 M6 20,0 14, L1392.BK ,0 11,0 M8 20,0 14, L1392.BK ,5 14,0 M8 26,0 18,

14 Floating Rectangular Support Units (BF) L1393 Standard units are suitable for ball screws and lead screws to C5/C7 accuracy grade. The bearings are not preloaded and have a max. axial clearance of 18µ. of the screws see technical pages. Electroless nickel plated versions of these bearing mounts are available for clean room and other applications. Order No. For lead screw o.d ø<> For ball screw o.d ø<> d 1 H7 l 4 ± 0,02 w h 2 h 3 ± 0,02 L1393.BF ,5 22 L1393.BF ,5 25 L1393.BF ,0 28 L1393.BF ,0 39 L1393.BF ,0 34 L1393.BF ,0 48 L1393.BF ,0 51 L1393.BF ,0 52 L1393.BF ,0 60 Order No. h 4 h 5 Max axial load Kgf Max static load Kgf L1393.BF ,0 5,5 10,8 6, L1393.BF ,0 5,5 10,8 6, L1393.BF ,5 5,5 11,0 6, L1393.BF ,5 6,6 14,0 9, L1393.BF ,5 6,6 14,0 9, L1393.BF ,0 9,0 17,5 11, L1393.BF ,0 11,0 20,0 14, L1393.BF ,0 11,0 20,0 14, L1393.BF ,5 14,0 26,0 18,

15 Fixed Rectangular Support Units (EK) L1394 Standard units are suitable for ball screws and lead screws to C5/C7 accuracy grade. The bearings are not preloaded and have a max. axial clearance of 18µ. of the screws see technical pages. Electroless nickel plated versions of these bearing mounts are available for clean room and other applications. Order No. For lead screw o.d ø <> For ball screw o.d ø <> d 1 H7 l 4 ± 0,02 w 1 w 2 w 3 w 4 h 2 L1394.EK ,0 16,5 5,5 18,5 3,5 8 L1394.EK ,0 20,0 5,5 22,0 3,5 20 L1394.EK ,0 23,0 7,0 26,0 4,0 26 L1394.EK ,0 24,0 6,0 29,5 6,0 24 L1394.EK ,0 24,0 6,0 29,5 6,0 24 L1394.EK ,0 25,0 6,0 36,0 5,0 25 L1394.EK ,5 20,0 10,0 50,0 10,0 25 Order No. h 3 ± 0,02 h 4 A/F Max axial load Kgf L1394.EK M3-4, L1394.EK M3 9,5 5, L1394.EK M3 11,0 6, L1394.EK M3-9, L1394.EK M4-9, L1394.EK M4-11, L1394.EK M4-11,

16 Floating Rectangular Support Units (EF) L1395 Standard units are suitable for ball screws and lead screws to C5/C7 accuracy grade. The bearings are not preloaded and have a max. axial clearance of 18µ. of the screws see technical pages. Electroless nickel plated versions of these bearing mounts are available for clean room and other applications. Order No. For lead screw o.d ø<> For ball screw o.d ø<> d 1 H7 l 4 ± 0,02 w h 2 L1395.EF , L1395.EF , L1395.EF , L1395.EF , L1395.EF , L1395.EF , Order No. h 3 ± 0,02 h 4 Max axial load Kgf Max static load Kgf L1395.EF ,5 9, L1395.EF ,6 11, L1395.EF , L1395.EF , L1395.EF , L1395.EF ,

17 Fixed Round Support Units (FKA) L1400 Standard units are suitable for ball screws and lead screws to C5/C7 accuracy grade. The bearings are not preloaded and have a max. axial clearance of 0,018mm. of the screws to see technical pages. Electroless nickel plated versions of these bearing mounts are available for clean room and other applications. Order No. For lead screw o.d Ø For ball screw o.d Ø d 1 H7 l 4 l 5 l 6 l 7 L1400.FKA ,5 6, ,0 3,5 L1400.FKA ,0 8, ,0 4,0 L1400.FKA ,5 8, ,5 5,0 L1400.FKA ,5 8, ,5 5,0 L1400.FKA ,0 12, ,0 6,0 L1400.FKA ,0 12, ,0 10,0 Order No. l 8 l 9 w 1 w 2 h 2 h 3 g6 d 5 pcd L1400.FKA06 4, ,79 20, M3 6,5 3, L1400.FKA08 5, ,79 20, M3 6,5 3, L1400.FKA10 6, ,70 27, M3 8,0 4, L1400.FKA12 6, ,70 27, M4 8,0 4, L1400.FKA15 8, ,40 30, M4 9,5 5, L1400.FKA20 14, ,74 44, M4 11,0 6, Max axial load Kgf

18 Fixed Rectangular Support Units (LK) L1402 Standard units are suitable for ball screws and lead screws to C5/C7 accuracy grade. The bearings are not preloaded and have a max. axial clearance of 0,018mm. of the screws to see technical pages. Electroless nickel plated versions of these bearing mounts are available for clean room and other applications. Order No. For lead screw o.d Ø For ball screw o.d Ø d 1 H7 l 4 w 1 w 2 L1402.LK ,5 - L1402.LK ,0 6 L1402.LK ,0 6 L1402.LK ,0 6 Order No. w 3 w 4 ±0,02 h 2 h 3 ±0,02 h 4 A/F L1402.LK08 26,0 3,5 25,5 15,5 12, M L1402.LK10 29,5 6,0 30,0 20,0 10, M L1402.LK12 29,5 6,0 30,0 20,0 10, M L1402.LK15 36,0 10,0 32,0 22,0 13, M Max axial load Kgf

19 Floating Low Profile Support Units (LF) L1403 Standard units are suitable for ball screws and lead screws to C5/C7 accuracy grade. The bearings are not preloaded and have a max. axial clearance of 0,018mm. of the screw to see technical pages. Electroless nickel plated versions of these bearing mounts are available for clean room and other applications. Order No. For lead screw o.d Ø For ball screw o.d Ø d 1 H7 l 4 ±0,02 L1403.LF L1403.LF L1403.LF Order No. w h 2 h 3 ±0,02 h 4 Max axial load Kgf Max static load Kgf L1403.LF ,5 15,5 12,5 14 6,6 103 S L1403.LF ,0 20,0 10,0 14 9, L1403.LF ,0 22,0 11,0 14 9,0 240 S 17005

20 Heavy Load Support Units (WBK) L1405 These supports come with a pair of duplex angular contact bearings (type A), three angular bearings (type B), or four angular contact bearings (type C), for a true fixed support. of the screw to see technical pages. Order No. d 1 H7 Type l 4 l 5 l 6 l 7 l 8 g6 d 5 H5 X Kg L1405.WBK17-A 17 A , ,2 L1405.WBK20-A 20 A , ,2 L1405.WBK25-A 25 A , ,3 L1405.WBK25-B 25 B , ,1 L1405.WBK25-C 25 C , ,4 L1405.WBK30-A 30 A , ,0 L1405.WBK30-B 30 B , ,0 L1405.WBK30-C 30 C , ,3 L1405.WBK35-A 35 A , ,4 L1405.WBK35-B 35 B , ,4 L1405.WBK35-C 35 C , ,3 Order No. d 6 d 7 d 8 d 9 d 10 d 11 d 12 d 13 w Dynamic load Kgf Axial load Kgf Preload Kgf Rigidity Kfg/cm Starting torque Kgf/cm L1405.WBK17-A M17 x 1, M5 58 M6* ,0-1,9 L1405.WBK20-A M20 x 1, M5 58 M6* ,0-1,9 L1405.WBK25-A M25 x 1, M6 70 M ,6-2,9 L1405.WBK25-B M25 x 1, M6 70 M ,2-4,0 L1405.WBK25-C M25 x 1, M6 70 M ,8-5,0 L1405.WBK30-A M30 x 1, M6 70 M ,7-3,0 L1405.WBK30-B M30 x 1, M6 70 M ,2-4,0 L1405.WBK30-C M30 x 1, M6 70 M ,9-5,2 L1405.WBK35-A M35 x 1, M6 80 M ,9-3,5 L1405.WBK35-B M35 x 1, M6 80 M ,5-4,6 L1405.WBK35-C M35 x 1, M6 80 M ,3-6,0

21 Heavy Load Support Units (SBK) L1406 These supports come with a pair of duplex angular contact bearings (type A), three angular bearings (type B), for a true fixed support. of the screw to see technical pages. Order No. d 1 l 4 l 5 l 6 l 7 l 8 l h 2 h 3 L1406.SBK25-A , L1406.SBK25-B , L1406.SBK30-A , L1406.SBK30-B , L1406.SBK35-A , L1406.SBK35-B , L1406.SBK40-A , L1406.SBK40-B , Order No. h 4 d 5 d 6 d 7 d 8 d 9 load Dynamic Kgf Axial load Kgf Preload Kgf Rigidity Kgf/cm Torque Kgf/cm L1406.SBK25-A 2 57 M25 x 1, M6 70 M ,6-2,9 L1406.SBK25-B 2 57 M25 x 1, M6 70 M ,2-4,0 L1406.SBK30-A 2 57 M30 x 1, M6 70 M ,7-3,0 L1406.SBK30-B 2 57 M30 x 1, M6 70 M ,2-4,0 L1406.SBK35-A 2 69 M35 x 1, M6 80 M ,9-3,5 L1406.SBK35-B 2 69 M35 x 1, M6 80 M ,5-4,6 L1406.SBK40-A 2 69 M40 x 1, M6 80 M ,0-3,7 L1406.SBK40-B 2 69 M40 x 1, M6 80 M ,6-4,8

22 Motor Bracket (MBA) L1408 Parallelism between the two faces is This provides a quick and easy solution to combine a motor with the fixed bearing unit. Order No. d 1 H7 ± 0,02 l 4 w 1 w 2 w 3 H7 d 5 d 6 Compatible support unit L1408.MBA06A ,0 30,0 M3 45,0 9,5 5,5 L1400.FKA06 L1408.MBA08A ,0 30,0 M4 46,0 9,5 5,5 L1400.FKA08 L1408.MBA10A ,5 30,0 M3 45,0 11,0 6,6 L1390.FK10 L1408.MBA10B ,5 30,0 M4 46,0 11,0 6,6 L1390.FK10 L1408.MBA10C ,5 38,1 M4 66,7 11,0 6,6 L1390.FK10 L1408.MBA10D ,5 50,0 M5 70,0 11,0 6,6 L1390.FK10 L1408.MBA10E ,5 50,0 M4 70,0 11,0 6,6 L1390.FK10 L1408.MBA12A ,5 30,0 M3 45,0 11,0 6,6 L1390.FK12 L1408.MBA12B ,5 30,0 M4 46,0 11,0 6,6 L1390.FK12 L1408.MBA12C ,5 38,1 M4 66,7 11,0 6,6 L1390.FK12 L1408.MBA12D ,5 50,0 M5 70,0 11,0 6,6 L1390.FK12 L1408.MBA12E ,5 50,0 M4 70,0 11,0 6,6 L1390.FK12 L1408.MBA15A ,0 38,1 M4 66,7 11,0 6,6 L1390.FK15 L1408.MBA15B ,0 50,0 M5 70,0 14,0 6,6 L1390.FK15 L1408.MBA15C ,0 50,0 M4 70,0 14,0 6,6 L1390.FK15 L1408.MBA15D ,0 73,0 M6 98,4 14,0 8,5 L1390.FK15 L1408.MBA15E ,0 70,0 M6 90,0 14,0 8,5 L1390.FK15 L1408.MBA15F ,0 70,0 M5 90,0 14,0 8,5 L1390.FK15 L1408.MBA20A ,0 50,0 M5 70,0 14,0 8,5 L1400.FKA20 L1408.MBA20B ,0 50,0 M4 70,0 14,0 8,5 L1400.FKA20 L1408.MBA20C ,0 73,0 M6 98,4 14,0 8,5 L1400.FKA20 L1408.MBA20D ,0 70,0 M6 90,0 14,0 8,5 L1400.FKA20 L1408.MBA20E ,0 70,0 M5 90,0 14,0 8,5 L1400.FKA20