38 results for lead screw found in 0.000 seconds

precision ground and rolled ball screws rbc precision ball screws offer high ... in preloaded rbc precision ball screws rbc precision ball screws are available ... from either precision ground ball screws in either inch or metric sizes ... the application rbc will supply a ball screw with either internal or external ball ... are all available produced with short lead times to minimize downtime many ... transmissions and gear boxes ˇ ball screws precision ground rolled ball splines ... low wear high accuracy quickturnŽ ball screw repair service ˇ custom designed ... specific applications quickturnŽ ball screw repair service contact rbc about the ... quickturnŽ ball screw repair service 800.62.renew this ... customers high-quality repairs on all leading manufacturers ball screws the service ...

table of contents pages 1 rbc ball screws 4-5 1.1 classification of ball screws 1 ... .2 standard precision ground ball screw availability table 1.3 standard ... precision rolled ball screw availability table 6-7 2.1 reliability ... high stiffness 2.5 high durability 2.6 lead time 8 service life 8.3 allowable load ... 25-27 2 features of rbc ball screws 9 driving torque 9.1 ball screw torque ... during acceleration 27-29 3 rbc ball screw selection procedure flow chart 4 ... accuracy of rbc ball screws 4.1 lead accuracy 4.2 mounting accuracy ... method 10.3.3 dog stop method 29-31 5 screw shaft design 5.1 ball screw ... 5.4.2 dmˇn value 5.5 precautions for screw design 5.5.1 thread runoff adjacent ... designs 12 rbc precision ground ball screws dimensional tables 35-55 7 ...

1 rbc ball screws 1.1 classification of ball screws pages ... flange rb-series high helix-large lead external ball return tube std v-thd ... optional flange p-series miniature-fine lead rolled metric series rms-series ... optional flange m-series miniature-fine lead 40-47 rbc ball screws 48-49 50-52 53 56 ...

1.2 standard precision ball screw availability tables inch series od in 0 ... 0.5 16 20 25 28 32 36 40 45 50 55 63 80 lead in 0.375 0.400 0.100 xxxx 0.125 0.200 0 ... xxxxxx 1 1.5 2 2.5 lead mm 3 4 5 xxxxxx 6 8 10 12 xxxx 1.3 ... standard rolled ball screw availability tables inch series od in 0 ... 500 3.000 0.0625 x 0.100 xxxxxxxxxxxxxx lead in 0.125 0.200 0.250 0.500 0.660 0.473 ... 1.000 2.000 xxxxxxx metric series od lead mm mm 10 25 5 16 x 25 x x x 40 x x 50 x ... 63 x rbc custom ground precision ball screws are available in many of the od/lead ...

play is minimized on conventional acme lead screws the drive torque becomes ... the axial play in rbc precision ball screws may be reduced to zero by preloading ... in superior durability of rbc ball screws 2.6 lead time rbc has readily available ... requirements within days custom ball screws require our industry leading 6 week ... lead time 7 ...

3 rbc ball screw selection procedure correct selection ... of the ball screw for the application is critical to ... proper operation and life of the ball screw the process of selection is shown in ... accuracy lubrication acceleration etc lead accuracy precision ground ball screw ... length diameter lead nut specifications stiffness of total ... fig 3.1 procedure for selecting ball screws flow chart industrial rolled ball screw ... length diameter lead 8 ...

4 accuracy of rbc ball screws 4.1 lead accuracy lead accuracy of rbc ball ... screws is specified in three basic terms c ... 2rad 2 ­e p e sc fig 4.1 diagram of lead accuracy table 4.1 definition of terms ... for lead accuracy term travel compensation ...

5.5 precautions for screw design 5.5.1 thread runoff adjacent ... an economical design for your ball screw application the ball thread runoff must ... extend off one end of the screw shaft for the following ball nut models ... 5.2 hardness/transition zone rbc s ball screw shaft is induction hardened thus an ... zone may be present at each end of the screw thread area depending on the design ... return tube type ˇ suitable for large lead screw shaft diameter ratio ball ... outside diameter ˇ suitable for small lead/shaft outside diameter ratio 18 ...

7.1.4 preloading of ball screws preload eliminates axial backlash and ... thus improving the rigidity of the ball screw rbc offers the following preload ... preload tension tension ball nut ball screw with the double nut preload system the ... is standard to improve operability lead lead nut shaft four­point contact nut ... idlers spacer ball screw shaft load balls effect of spacer balls ...

preloading integral preload tension lead tension lead a lead ball nut ball ... screw with the integral preload system one ... by placing a slight shift in the lead between the two circuits 7.1.5 effects ... of preload applying a load to the ball screw causes a deflection of both the ball ... nut and screw shaft grooves and of the ball bearing ...

accuracy error factors include lead accuracy and system stiffness thermal ... important role 7.2.2 specification of lead accuracy a accuracy grade select the ... accuracy b pre-tensioning of the ball screw lead the basic lead of a ball screw is ... the same as the nominal lead the basic lead may be set to either the minus or plus ... increases or elongation of the screw shaft under an external load 7.2.3 ... thermal displacement of the screw shaft results in deterioration of ... 6.33 x 10-6 f° temperature rise f° of screw shaft screw shaft length in thermal ... ˇ optimization of preload of ball screw and support bearing ˇ correct selection ... supply of lubricant ˇ increase the ball screw lead thus reducing rotational speed b ... cool the ball screw ˇ use a hollow screw shaft to allow cooling fluid to flow ...

8.3.3 standard material hardness screw shaft4150 vds ball nut4150 vds ball ... 58 ­ 62 58 ­ 62 62 ­ 64 special ball screws 440c ss,17-4 ph ss for special ... surface treatments if necessary rbc s screwshaft is heat treated using a single bar ... factors 9 driving torque 9.1 ball screw torque 9.1.1 normal operation the ... operating torque inlbs axial load lbs lead in normal efficiency 0.90 0.95 where ... backdriving torque inlbs axial load lbs lead in 27 ...

frictional torque inlbs preload lbs lead in preload torque coefficient normally ... moving weight lbs table workpiece lead in normal efficiency 0.90 0.95 support ...

motor lbins2 moment of inertia of the screw shaft lbins2 moving weight lbs table ... workpiece lead in gravitational acceleration 386.4 in/ ... for highly loaded gears and actuator screw mechanisms with a viscosity of 3.1 cst ... specification can be used in most ball screw applications rbc s standard oil is an ... or water if allowed to enter the ball screw may increase friction and cause damage ...

thread directionrh or lh indicates iso lead accuracy class 1 0.0002 ft class 3 0. ...

12 rbc precision ground ball screws ­ dimensional tables rbc s standard ... series for precision ground ball screws covers a wide range of ball screw ... ground series mm series is a metric lead series with an external ball return and ... nut offering im series is a metric lead series with an internal return ... and double nut offerings based on screw major diameter two standard flange ... are provided gn series is an inch lead series with an external ball return and ... units as standard gv series is an inch lead series with an external ball return and ... patterns shown rb series is an inch lead series designed for high speed ... such as food processing this is an inch lead series this series is a non preloaded ... series is provided with a 0.006 ft lead accuracy lead accuracies down to 0.001 ...

double nut preload bcedl model no major screw dia j ball dia lead mm a b c max defgh ...

integral flange abdfec major model no screw dia mm in im1605 im2005 im2505 im3205 ... 0.1378 0.2812 0.2812 0.2812 ball dia lead mm abcd max efgh 5 5 5 5 5 10 5 10 10 ...

gn-2504 gn-2502 gn-3002 gn-3066 gn-3001 screw type major a/b dia 0.500 0.500 0.625 0. ... 3750 0.1562 0.3750 0.3750 0.5000 0.5000 lead a b c max 1.025 1.062 1.025 1.187 1.187 ...

1562 0.3750 0.3750 0.1562 0.3750 0.3750 lead 0.20 0.25 0.20 0.25 0.20 0.25 0.50 0.50 ...

1562 0.3750 0.3750 0.1562 0.3750 0.3750 lead 0.20 0.25 0.20 0.20 0.25 0.20 0.25 0.50 ...

1562 0.3750 0.3750 0.1562 0.3750 0.3750 lead 0.20 0.25 0.20 0.20 0.25 0.20 0.25 0.50 ...

c dhbjge thread form k major model no screw dia gv0502 gv0605 gv0602 gv0705 gv1005 ... 1.500 1.500 2.250 2.250 ball dia nut lead type a b max c d v thread form e lube ...

optional flange high helix ­ large lead 2 start abcc 4 start a b lube fitting d ... 1875 0.1875 0.1562 0.1562 0.1875 0.1875 lead 1.000 0.500 1.000 2.000 2.000 2.000 1. ... 1875 0.1875 0.1562 0.1562 0.1875 0.1875 lead 1.000 0.500 1.000 2.000 2.000 2.000 1. ...

optional flange high helix ­ large lead continued 2 start e swept radius for ...

optional flange high helix ­ large lead continued a j a 30° cbfbhgdedg fig 1 ...

internal ball return miniature ­ fine lead l2 l1 d1 d2 d3 d4 l3 d1 series p ... precision grade 0005 ft screw major dia d1 0.250 0.250 0.375 0.500 0. ... ref 0.217 0.217 0.326 0.467 0.451 0.701 lead rh 0.05 0.10 0.10 0.05 0.10 0.10 d2 . ...

13 rbc precision rolled ball screws ­ dimensional tables 13.1 rms series ... rms4010a rms5010a rms6310a major screw dia mm 15.672 24.714 24.740 24.740 24. ... .971 21.260 36.906 34.290 44.169 57.175 lead mm 5 5 10 10 25 5 10 10 10 ball dia 0. ...

type c type d type e max model no screw dia rs-0308 0.380 rcs0308 0.380 rs-0505 ... 375 0.375 0.375 0.375 0.375 0.375 0.500 lead 0.125 0.125 0.200 0.500 0.500 0.200 0. ...

hole d dimensions model no max major screw dia 0.375 0.500 0.500 0.625 0.625 0.750 ... 000 2.000 2.000 2.250 2.500 2.500 3.000 lead 0.125 0.200 0.500 0.200 0.200 0.200 0. ...

internal ball return miniature-fine lead l2 l1 d1 d2 d3 d4 l3 d1 series m ... industrial grade 006 ft screw major dia d1 0.187 0.187 0.312 0.298 ... minor dia ref 0.154 0.154 0.278 0.248 lead rh 0.0500 0.0625 0.0500 0.1000 d2 .5000 ...

5 standard end journals miniature fine lead series type aa a type bb a b type cc ...

14 quickturnŽ ball screw repair service rbc has repaired ball ... screws on the equipment of virtually every ... .62.renew for details quickturnŽ ball screw repair planning guide repair type ... service lead time typical pricing of new free 10- ... with new components replace nut replace screw regrind screw new screw regrind nut ... regrind nut regrind screw new nut complete assembly replaced 2 1 ... weeks weeks weeks warranty all ball screws are repaired by highly skilled ... all workmanship on repaired ball screws for one year 64 ...

free motion between the ball nut and screw shaft without rotation between the ... rigidity ­ the resistance of the ball screw assembly to axial deflection under load ... ­ the ability of the ball nut or screw shaft to rotate when an axial thrust ... bearing ­ the integral part of the ball screw assembly interspaced in the helical ... annulus between the nut and screw shaft which transmits axial motion ... path created by the assembly of the nut screws shaft and ball spacer ball idler ­ a ... the helical groove between the nut and screw shaft in which a specified number of ... the load reaction between the nut and screw shaft ball groove ball track ­ the ... helical groove of a ball nut and ball screw shaft which transmits the load reaction ... between the ball nut ball screw and ball bearings ball return system ­ ...

rotational speed of a ball nut or ball screw shaft that produces a resonant ... vibration of the ball screw shaft deflection elastic deformation ­ ... the deformation of the ball screw assembly given an applied load ... force measured at a radius of a ball screw assembly with or without wipers drive ... drag torque to actuate the ball screw assembly drunkenness ­ the ... characteristic of a ball screw assembly under load and rotation the ... centric axial load that the ball screw can theoretically withstand for a basic ... efficiency ­ 90 ­ 95 for ball screws measured by the following criteria load ... end journal ­ the portion of the ball screw upon which is mounted the support ... cycles fatigue life ­ life of the ball screw assembly under the condition of a ... between the ball nut ball bearings and screw shaft normally in the range of .0025 to ...

leadactual ­ the measured lead of the ball screw thread from a ... point within a specified length lead erroraccumulated ­ the summation of ... lead error over a specified length of travel ... of the ball nut or accumulation of lead error of the threaded screw lead error ... ­ the error in lead length per turn per inch per foot or ... overall compared to the basic lead specified life ­ the usable life of a ... ball screw assembly given in terms of inches of ... and dissipate heat multiple thread ­ a screw shaft with two or more independent ... on the next track parallel to the ball screw or ball nut axis pitch diameterball ... when they are in contact with the ball screw and ball nut tracks precision ­ term ... radial motion between the ball nut and screw shaft without rotation between the two ...

­ the axial distance traversed by the screw or nut in one direction turns ­ the ... that the ball nut track makes about the screw axis one circuit vee-thread ­ threaded ... portion of ball nut or screw shaft variation ­ rate of change in ... ­ the total variation peak-to-peak in lead error for one revolution of the ball ...

17 application data form ball screw application data form customer ... c universal 2 rotating member ball screw ball nut 3 major diameter required ... 4 lead required rh or lh 5 lead accuracy required ft cumulative 6 ...