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repair precision ground and rolled ball screws inch and metric sizes for a wide ...

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 ... transmissions and gear boxes · ball screws precision ground rolled ball splines ... low wear high accuracy quickturn® ball screw repair service · custom designed ... specific applications quickturn® ball screw repair service contact rbc about the ... quickturn® ball screw repair service 800.62.renew this ... on all leading manufacturers ball screws the service includes a free evaluation ...

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 ... 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 dm·n 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 ... 7.1.1 axial stiffness of the ball screw system 7.1.2 axial stiffness of screw ... of nut kn 7.1.4 preloading of ball screws 7.1.5 effects of preload 7.2 ...

1 rbc ball screws 1.1 classification of ball screws pages ... miniature-fine lead 40-47 rbc ball screws 48-49 50-52 53 56-57 inch series 58-60 ...

1.2 standard precision ball screw availability tables inch series od in 0 ... 6 8 10 12 xxxx 1.3 standard rolled ball screw availability tables inch series od in 0 ... x 63 x rbc custom ground precision ball screws are available in many of the od/lead ...

2 features of rbc ball screws 2.1 reliability rbc s commitment to ... each manufacturing process of the ball screw rbc s quality system is built on the ... free operation for the life of the ball screw 2.2 high accuracy all rbc ball screw ... high mechanical efficiency of rbc ball screws results from the rolling contact of ... friction of the conventional acme screw ball screw power requirements are ... 80 60 40 20 0 0 2 4 6 8 10 acme screw linear to rotary motion helix angle ° ... efficiency of rbc precision ball screw 6 ...

is minimized on conventional acme lead screws the drive torque becomes excessive and ... 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 ...

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 ... lead accuracy precision ground ball screw length diameter lead nut ... fig 3.1 procedure for selecting ball screws flow chart industrial rolled ball screw ...

4 accuracy of rbc ball screws 4.1 lead accuracy lead accuracy of rbc ... ball screws is specified in three basic terms c ...

table 4.2 tolerance on specified travel ep tolerance on specified travel ep tavel length mm above 315 400 500 630 800 1000 1250 1600 2000 2500 3150 4000 5000 up to including 315 400 500 630 800 1000 1250 1600 2000 2500 3150 4000 5000 6300 class 1 6 7 8 9 10 11 13 15 18 22 26 32 class 3 12 13 15 16 18 21 24 29 35 41 50 62 76 class 5 23 25 27 32 36 40 47 55 65 78 96 115 140 170 class 7 class 10 units µm unless specified table 4.3 variation per 300mm v300 and wobble error v2 variation per 300mm and wobble error accuracy grade 300 2 class 1 6 4 class 3 12 6 class 5 ...

accuracy tolerances to use a ball screw correctly and achieve long life with ... to both iso jis standards for ball screw measurement rbc will help you determine ... to the shaft center line all rbc ball screws are manufactured inspected and ...

5 screw shaft design 5.1 ball screw manufacturing capability rbc s ... shown below rbc has manufactured ball screws up to 6 in diameter and up to 36 ft in ... length contact rbc if your required screw shaft dimensions exceed this scope 280 ... 260 240 220 screw threaded length inches manufacturing ... production scope rbc manufactures ball screws with specialized requirements including ... hollow ball screws for weight reduction or cooling ... purposes ball screws with specialty platings for corrosive ... right and left hand thread ball screws ball screws with specialized drive ...

shaft typical mounting methods for ball screws are shown in the figure below use the ... .1 common end journal mounting for ball screws 13 ...

.3.1 compressive load the safety of the screw shaft against buckling needs to be ... checked when the screw shaft will experience a compressive ... for each nominal outside diameter of screw shaft the formula for calculating the ... 1.00 2.00 4.00 critical column load lbs screw shaft groove diameter in mounting ... .2 allowable tensile load when the ball screw will experience a tensile load the ... maximum load of the ball screw must be checked the formula is as shown ... allowable tensile stress 55,000 lb/in2 screw shaft groove diameter in where 14 ...

a diagonal line this line is your ball screw outside diameter 200 Ø4 100 80 Ø3 Ø2 Ø2 ...

important to ensure that the ball screw rotation speed is not resonant with the ... natural frequency of the screw shaft rbc uses a safety factor of 80 or ... close to the natural frequency of the screw then different mounting arrangements or ... an alternative screw diameter should be considered fs x cs x ... 00 1.47 2.23 2 where critical speed rpm screw shaft groove diameter in mounting ...

n rotation speed min-1 many ball screw manufacturers sell product with a non- ...

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 ... tube type · suitable for large lead screw shaft diameter ratio ball deflector ...

flop­over deflector nut ball screw external yoke style deflector · ...

loads optimal performance of the ball screw is realized when the load distribution ... on steel balls rolling between the screw shaft and nut is as even as possible ... loading on a small portion of the steel balls thereby affecting operational ... stiffness poor system stiffness of ball screws results in loss of positioning accuracy ... 7.1.1 axial stiffness of the ball screw system axial elastic displacement and ... stiffness of the ball screw system is calculated as follows fa q ... 1 kn 1 kb 1 displacement of ball screw in load on feed system lbs stiffness of ... ball screw system lb/in stiffness of screw shaft lb/in stiffness of ball nut lb/in ...

7.1.2 axial stiffness of screw shaft ks a fixed ­ free axe ks a ks ... axial stiffness of the screw shaft lb/in a cross-sectional area of ... the screw shaft in2 e modulus of elasticity 29 x ... ks axb ks axial stiffness of the screw shaft lb/in a cross-sectional area of ... the screw shaft in2 e modulus of elasticity 29 x ...

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 ... nuts b single nut preloading oversized balls a single nut can be preloaded in two ... ways one method is to insert steel balls slightly larger than the ball groove ... space oversized balls which is referred to as four point ... for light preloading the use of spacer balls 1:1 ratio is standard to improve ... ­point contact nut idlers spacer ball screw shaft load balls effect of spacer balls ...

lead tension lead a lead ball nut ball screw with the integral preload system one ... circuit of balls is loaded against the other circuit of ... balls to provide a tension preload this is ... 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 b pre-tensioning of the ball screw lead the basic lead of a ball screw is ... 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 ... · optimization of preload of ball screw and support bearing · correct selection ... supply of lubricant · increase the ball screw lead thus reducing rotational speed b ... cool the ball screw · use a hollow screw shaft to allow cooling fluid to flow ... through the ball screw and remove heat · cool the outside of ... the screw shaft with cooling oil or air c avoid ... temperature increase · pre-tension of screw shaft · use of closed loop control ...

8 service life the service life of ball screws should be considered in terms of both ... life the fatigue life of the ball screw may be estimated from the basic dynamic ... allows 90 of a group of identical ball screws rotated under the same conditions to ... and results in a large size ball screw typical targets for fatigue life are ...

moment loads or radial load on the ball screw reduces both operability and fatigue ... life careful installation of the ball screw is critical 8.3 allowable load on ... grooves when the ball screw is to be used infrequently or at a low ... deformation at contact points of the balls to ball grooves equal to 0.01 of the ...

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 ...

9.1.3 when a preload is applied dynamic torque produced by a preload can be calculated as follows ppl xlxk td 2x preload frictional torque inlbs preload lbs lead in preload torque coefficient normally 0.2 where td ppl l k 9.2 motor driving torque the torque required to drive a mechanical system against an external load is calculated as follows 9.2.1 driving torque at a constant speed [f µ x w x l t1 td 2 x x e1 ts where t1 td f µ w l e1 ts drive torque at constant speed inlbs preload frictional torque inlbs axial cutting force lbs coefficient of friction of the slide surface moving ...

motor lbins2 moment of inertia of the screw shaft lbins2 moving weight lbs table ... 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 ...

10.2.2 optional nylon wiper precision series wiper optional nylon wiper 10.2.3 optional combination felt nylon wipers precision series felt wiper nylon wiper g optional combination felt nylon wiper 10.2.4 optional brush felt wiper precision series felt wiper brush wiper retaining ring optional brush felt wiper 10.2.5 optional brush wiper rolled series wiper retaining ring optional brush wiper 30

stops are used at the ends of the screw shaft to prevent the ball nut from ...

11 rbc part number the part numbering system used by rbc distinguishes the product and is composed of basic specifications this system is used for drawings orders and identification of product 11.1 standard precision series example gn1005 1 position 1 position 2 position 3 r 2 3 3 0350 a 4 5 c 6 o 7 position 4 position 5 position 6 position 7 indicates series type indicates thread directionrh or lh indicates iso lead accuracy class 1 0.0002 ft class 3 0.0005 ft class 5 0.001 ft class 7 0.002 ft class 9 0.006 ft indicates shaft length inches indicates ball nut style a std singlenut 2-circuit ...

11.2 non-standard precision series example gn1005 1 position 1 position 2 xxxxx 2 indicates series type indicates shop sequence number 11.3 standard rolled series example rs0308 1 position 1 position 2 position 3 12 2 f 3 a 4 3 5 5 6 x 7 position 4 position 5 position 6 position 7 indicates series type indicates threaded length of shaft indicated with of without flange f with flange o without flange indicates end annealing a annealed end o no annealing indicates annealed length in inches on left end journal or standard journal type e e1 f f1,h h1 see sketches length in inches of annealed ...

notes 34

12 rbc precision ground ball screws ­ dimensional tables rbc s standard ... series for precision ground ball screws covers a wide range of ball screw ... and double nut offerings based on screw major diameter two standard flange ...

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

12.1 mm series metric external ball return integral flange continued k h swept radius for tube clearance g j f singlenut preload load ratings lbs dynamic load 10 incheslbs 1,227 1,378 1,533 1,634 1,881 1,829 6,211 6,728 6 doublenut preload load ratings lbs dynamic load 10 incheslbs 2,230 2,506 2,787 2,970 3,420 3,325 11,292 12,231 6 singlenut non­preload load ratings lbs dynamic load 2,230 2,506 2,787 2,970 3,420 3,325 11,292 12,231 max static axial play 6 10 incheslbs capacity lbs backlash 15,409 20,586 26,587 31,762 26,469 42,949 85,745 106,485 0.007 0.007 0.007 0.007 0.009 0.007 0.012 0.012 ...

integral flange abdfec major model no screw dia mm in im1605 im2005 im2505 im3205 ...

lube hole j tapped lube hole j major screw dia 40 major screw dia 40 singlenut ...

gn-2504 gn-2502 gn-3002 gn-3066 gn-3001 screw type major a/b dia 0.500 0.500 0.625 0. ...

12.3 gn series inch external ball return integral flange continued k h swept radius for tube clearance k h tube clearance swept radius for ggjfjf type a type b single nut preload dynamic load 10 inches lbs 1,018 1,382 1,137 1,495 1,223 1,338 1,385 2,025 1,540 2,230 1,642 2,454 5,822 1,838 2,730 11,470 12,077 2,960 12,620 14,623 23,415 26,797 6 double nut preload dynamic load 10 inches lbs 1,851 2,513 2,067 2,719 2,241 2,414 2,519 3,682 2,800 4,054 2,986 4,462 10,586 3,342 4,963 20,855 21,958 25,380 22,948 26,587 42,570 48,722 6 single nut non-preload max static dynamic load capacity 10 inches ...

12.3 gn series inch external ball return integral flange continued right hand models shown left hand models available upon request abced model no gn1205 gn1204 gn1505 gn1504 gn2005 gn2004 gn2002 gn2202 gn2504 gn2502 gn3002 major shaft dia 1.250 1.250 1.500 1.500 2.000 2.000 2.000 2.250 2.500 2.500 3.000 ball dia 0.1250 0.1562 0.1250 0.1562 0.1250 0.1562 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 0.25 0.50 0.50 a 3.31 4.18 3.53 4.18 3.53 4.18 8.12 8.12 4.18 8.12 8.20 b 0.4 0.4 0.4 0.43 0.4 0.44 0.77 0.77 0.44 0.77 0.75 c max 1.687 1.750 2.000 2.062 2.500 2.562 ...

12.3 gn series inch external ball return integral flange continued k h swept radius for tube clearance gjfg 1.48 1.59 1.71 1.68 2.15 2.25 2.62 2.81 2.71 3.06 2.84 h 1.17 1.23 1.38 1.41 1.69 1.72 2.27 2.39 2.08 2.53 2.89 qty holes 3 3 3 3 5 5 5 5 5 5 5 hole dia j 0.344 0.344 0.344 0.344 0.406 0.406 0.531 0.531 0.406 0.531 0.531 k 2.312 2.437 2.625 2.625 3.250 3.250 4.250 4.625 3.875 4.625 5.250 dynamic load 106 inches lbs 2,800 4,054 2,986 4,462 3,342 4,963 20,855 21,958 5,380 22,948 26,587 max static load lbs 26,587 32,167 31,762 40,185 42,949 53,649 123,177 138,715 67,109 154,245 202,204 dimensions ...

12.3 gn series inch external ball return integral flange flange mount housing continued abcde model no gn0705 gn1004 gn1205 gn1505 gn1504 gn2005 gn2004 gn2002 gn2202 gn2504 gn2502 gn3002 major shaft dia 0.75 1.00 1.25 1.50 1.50 2.00 2.00 2.00 2.25 2.50 2.50 3.00 ball dia 0.1250 0.1562 0.1250 0.1250 0.1562 0.1250 0.1562 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 0.50 0.25 0.50 0.50 a 3.75 4.72 3.75 3.81 4.65 3.81 4.62 8.75 8.75 4.62 8.75 9.25 b 0.37 0.37 0.50 0.50 0.50 0.62 0.62 0.75 0.75 0.62 0.75 0.75 c max 2.312 2.750 3.000 3.375 3.375 4.125 4.125 5.250 5.625 ...

12.3 gn series inch external ball return integral flange flange mount housing continued ghfd 0.40 0.40 0.40 0.40 0.43 0.40 0.44 0.77 0.77 0.44 0.77 0.75 e 4.680 5.640 4.680 4.740 5.640 4.740 5.640 10.420 10.420 5.630 10.420 10.875 f 3.18 3.62 4.12 4.50 4.50 5.50 5.50 7.12 7.50 6.00 7.50 8.25 g 0.281 0.281 0.344 0.344 0.344 0.406 0.406 0.531 0.531 0.406 0.531 0.531 h 2.750 3.187 3.562 3.937 3.937 4.812 4.812 6.187 6.562 5.312 6.625 7.312 dynamic load 10 inches lbs 2,241 3,682 2,800 2,986 4,462 3,342 4,963 20,855 21,958 25,380 22,948 26,587 6 max static capacity lbs 15,409 25,441 26,587 31,762 40,185 ...

12.3 gn series inch external ball return integral flange base mount housing continued efhgjmnk 6 places typical l 2 places typical model no gn0705 gn1004 gn1205 gn1505 gn1504 gn2005 gn2004 gn2002 gn2202 gn2504 gn2502 gn3002 major shaft dia 0.75 1.00 1.25 1.50 1.50 2.00 2.00 2.00 2.25 2.50 2.50 3.00 ball dia 0.1250 0.1562 0.1250 0.1250 0.1562 0.1250 0.1562 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 0.50 0.25 0.50 0.50 a 3.62 4.18 4.43 5.00 5.00 5.87 5.87 7.93 8.81 6.81 8.81 10.06 b 1.187 1.375 1.500 1.687 1.687 2.062 2.062 2.625 2.812 2.312 2.937 3.250 c 0.50 ...

12.3 gn series inch external ball return integral flange base mount housing continued bcdag 0.40 0.40 0.40 0.40 0.43 0.40 0.44 0.77 0.77 0.44 0.77 0.75 h 2.500 3.375 2.500 2.250 3.125 2.250 3.125 6.000 5.750 3.000 5.750 5.625 j 3.000 3.500 3.750 4.187 4.187 5.000 5.000 6.625 7.250 5.750 7.250 8.250 k 0.281 0.344 0.344 0.406 0.406 0.468 0.468 0.656 0.781 0.531 0.781 0.906 l 0.218 0.281 0.281 0.344 0.344 0.406 0.406 0.593 0.781 0.468 0.718 0.843 m 0.625 0.843 0.625 0.562 0.781 0.562 0.718 1.500 1.437 0.750 1.437 1.406 n 1.250 1.687 1.250 1.125 1.562 1.125 1.562 3.000 2.875 1.500 2.875 2.812 dynamic ...

c dhbjge thread form k major model no screw dia gv0502 gv0605 gv0602 gv0705 gv1005 ...

12.4 gv series inch external ball return optional flange continued d 60° 45° 60° 30° cahh type 1 h type 2 d type 3 b type 1 2 3 c 60° eahfb type 4 flange type abcdef hole bolt dia circle h1 singlenut preload load ratings lbs dynamic load 106 inches 1,336 1,100 1,430 1,592 1,267 1,647 1,990 2,880 5,352 5,630 10,835 15,590 19,650 maximum static load 4,942 3,880 4,191 9,950 9,422 11,638 17,170 27,870 36,946 29,800 40,640 90,000 90,000 singlenut non-preload load ratings lbs dynamic maximum static load load 106 inches 2,429 9,883 1,998 7,762 2,597 7,372 2,894 19,897 1,933 15,812 2,513 19,531 3,617 ...

12.5 rb series inch external ball return optional flange high helix ­ large lead 2 start abcc 4 start a b lube fitting d lube fitting d non-preload model no rb0701a rb0702a rb1001a rb1020a rb1520e rb1520f rb2001a rb2001b rb2020e rb2020f major shaft dia 0.750 0.750 1.000 1.000 1.500 1.500 2.000 2.000 2.000 2.000 ball dia 0.1250 0.1562 0.1562 0.1562 0.1875 0.1875 0.1562 0.1562 0.1875 0.1875 lead 1.000 0.500 1.000 2.000 2.000 2.000 1.000 1.000 2.000 2.000 a 2.88 2.68 3.00 3.00 5.00 5.00 3.62 3.62 5.31 5.31 b 0.50 0.50 0.62 0.62 0.75 0.75 1.00 1.00 1.00 1.00 c 1.312 1.312 1.625 1.625 2.250 2.250 2.875 ...

12.5 rb series inch external ball return optional flange high helix ­ large lead continued 2 start e swept radius for tube clearance 4 start e swept radius for tube clearance non-preload e 0.94 1.00 1.12 1.12 1.53 1.53 1.87 1.87 1.94 1.94 no turns circuit 1.50 2.50 1.50 0.67 1.67 1.67 1.67 1.67 1.67 1.67 no starts 2 2 2 4 4 2 4 2 4 2 max axial play 0.005 0.009 0.006 0.006 0.008 0.008 0.006 0.006 0.008 0.008 max static load lbs 5,282 9,957 8,722 7,882 31,555 17,415 36,548 20,170 43,500 23,953 dynamic load 106 travel lbs 1,862 3,018 2,846 3,241 10,978 6,058 7,785 4,296 12,595 6,950 preload e 0.94 ...

12.5 rb series inch external ball return optional flange high helix ­ large lead continued a j a 30° cbfbhgdedg fig 1 fig 2 model no rb0701a-b rb0702a-b rb1001a-b rb1020a-c rb1520e-f-g-h rb2001a-b-c-d rb2020e-f-g-h fig no 2 2 1 1 1 2 2 a 0.907 0.907 0.972 0.972 1.370 2.057 2.257 b 0.523 0.523 0.972 0.972 1.370 1.187 1.187 c 1.047 1.047 2.375 2.375 d 0.281 0.281 0.281 0.281 0.531 0.531 0.531 e 0.530 0.530 0.660 0.660 0.780 1.031 1.031 f 2.60 2.60 3.25 3.25 4.62 5.62 5.62 g 1.250-16 1.250-16 1.500-16 1.500-16 2.125-16 2.625-16 2.625-16 h 0.04 0.04 0.04 0.04 0.04 0.06 0.06 j .192 185 .192 185 .256 ...

l3 d1 series p precision grade 0005 ft screw major dia d1 0.250 0.250 0.375 0.500 0. ...

12.7 standard end journals type a­ single bearing agbcfg type b­ duplexed bearings abcefdde gn series gn0505 gn0502 gn0605 gn0602 gn0705 gn0704 gn1004 gv series gv0502 mm series im series rb series a type a single bearing b 0.75 e 0.328 type b duplexed bearing a 2.00 b 1.12 e 0.687 type c multiple bearing a 2.69 b 1.81 e 1.390 1.62 gv0605 gv0602 gv0705 im1605 1.75 0.81 0.375 2.12 1.19 0.750 2.94 2.00 1.546 mm2005 im2005 mm2505 im2505 rb0701 rb0702 rb1001 1.87 0.87 0.406 2.31 1.31 0.835 3.18 2.18 1.680 gv1005 gv1004 2.37 1.06 0.520 2.91 1.59 1.071 4.03 2.71 2.154 gn1005 2.37 1.06 0.520 2.91 1.59 ...

12.7 standard end journals continued type c­ multiple duplexed bearings agcfbb type d­ pillow block a d d common dimensions for type a b and c c .312 311 d 1/8x1/16 f .3939 3936 g 0.56 e c type d pillow block nut n-00 washer w-00 bearing 200 a 2.25 b .3750 3745 c 1/8x1/16 d 1.25 basic pillow block no 006 .375 374 1/8x1/16 .4726 4723 0.62 n-01 w-01 201 2.44 .5000 4995 1/8x1/16 1.38 008 .500 499 1/8x1/16 .5908 5905 0.68 n-02 w-02 202 2.62 .6250 6245 3/16x3/32 1.50 010 .625 624 3/16x3/32 .7877 7873 0.71 n-04 w-04 204 3.15 .7500 7495 3/16x3/32 1.50 012 .625 624 3/16x3/32 .7877 7873 0.71 n-04 w-04 ...

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. ...

13.1 rms series metric external ball return optional flange continued k2 45° k2 60° k2 45° j k1 fig 1 fig 2 k1 fig 3 k1 i model no flange fig rms1605a rms2505a rms2510a rms2510 rms2525 rms4005a rms4010a rms5010a rms6310a 2 2 2 1,2 1,2 3 3 3 3 h v threads m30 m40 m40 m40 m40 m56 m60 m72 m85 xxxxxxxxx 1,5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.0 i max 0.674 0.714 0.709 0.640 0.640 0.792 1.107 1.186 1.186 j max 2.210 2.840 2.846 3.280 3.280 3.706 4.611 5.123 5.674 k1 hole dia 0.260 0.354 0.354 0.281 0.281 0.433 0.709 0.709 0.709 k2 no of flange holes bolt circle dia 6 6 6 4 4 8 8 8 8 equally equally equally ...

type c type d type e max model no screw dia rs-0308 0.380 rcs0308 0.380 rs-0505 ...

13.2 rs series inch external ball return optional flange continued k2 45° k2 60° afbk1 fig 1 e k2 45° fig 2 k1 dchj type f k1 fig 3 i e max f max g max 0.468 0.665 0.667 0.667 0.787 0.787 0.797 0.917 0.959 0.983 0.983 1.191 1.190 1.185 1.185 1.191 1.200 1.199 1.281 1.576 1.576 1.916 1.733 1.564 1.566 1.737 1.737 2.010 2.010 2.330 2.545 2.371 2.381 3.356 0.55r 0.85r 0.86r 0.83r 0.80r 0.80r 0.80r 0.94r 0.90r 1.06r 1.06r 1.12r 1.05r 1.09r 1.08r 1.12r 1.17r 1.10r 1.22r 1.68r 1.68r 1.61r 1.53r 1.93r 1.88r 1.96r 1.96r 2.27r 2.27r 2.29r 2.48r 2.77r 2.66r 3.34r 0.50 0.50 0.46 0.46 0.50 0.50 0.50 ...

hole d dimensions model no max major screw dia 0.375 0.500 0.500 0.625 0.625 0.750 ...

l3 d1 series m industrial grade 006 ft screw major dia d1 0.187 0.187 0.312 0.298 ...

rms4010a rs2002 rls2002 rs2001 rms5010a screw dia abcdefghijklmnop 0.625 2.10 0.812 0 ...

13.5 standard end journals miniature fine lead series type aa a type bb a b type cc abcccdp­ series model no p-0405 p-0410 p-0610 p-0805 p-0810 p-1210 a type aa c .1876 1873 .1876 1873 .2501 2498 .3751 3748 .3751 3748 .5002 4999 a 1.125 1.125 1.750 1.875 1.875 2.375 b type bb c .1876 1873 .1876 1873 .2501 2498 .3751 3748 .3751 3748 .5002 4999 d 0.156 0.156 0.218 0.218 0.218 0.250 a 0.50 0.50 0.75 0.75 0.75 1.00 type cc b 0.156 0.156 0.218 0.218 0.218 0.250 c .1876 1873 .1876 1873 .2501 2498 .3751 3748 .3751 3748 .5002 4999 0.156 0.156 0.218 0.218 0.218 0.250 0.625 0.625 0.937 1.000 1.000 1.250 ...

14 quickturn® ball screw repair service rbc has repaired ball ... screws on the equipment of virtually every ... .62.renew for details quickturn® ball screw repair planning guide repair type ... 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 ... from the interplay between load balls the diameter of which is smaller than ... the adjacent load balls and carries no axial thrust load ball ... the helical groove between the nut and screw shaft in which a specified number of ... recirculating balls travel transmitting the load reaction ... between the nut and screw shaft ball groove ball track ­ the ...

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 ...

­ the measured lead of the ball screw thread from a specified starting point ... of lead error of the threaded screw lead error ­ the error in lead length ... 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 ... passing through the centers of the balls 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 ... reversibility ­ the ability of a ball screw assembly to reverse direction runout ­ ... axis of rotation single start ­ a ball screw having the lead equal to the pitch ... rate ­ a measure of stiffness ball screw spring rate is equal to the load ...

­ 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 ...

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notes 70

17 application data form ball screw application data form customer ... c universal 2 rotating member ball screw ball nut 3 major diameter required ...

and final drive transmissions ball screws precision ground rolled ball splines ... low wear high accuracy quickturn® ball screw repair service specials rbc ...