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incorporated rbc bearings rbc has had a long tradition of innovation commitment ... and quality since the company was founded ... 1919 today rbc bearings has grown into a world-class manufacturer of standard ... and custom-engineered bearings and related products with a product focus ... on research testing and development of the best product for ... specific applications precision ground and rolled ball screws rbc precision ball ... screws offer high reliability and durability under many different ... operating conditions high accuracy and smooth operation is the result of ... precision processing assembly and inspection in a controlled environment ...

.2 standard precision ground ball screw availability table 1.3 standard precision rolled ... ball screw availability table 6-7 2.1 reliability 2.2 high ... accuracy 2.3 smooth operation 2.4 high stiffness ... 2.6 lead time 8 service life 8.3 allowable load on grooves 8.3.1 basic static ... rated load coa 8.3.2 calculation of allowable load 8.3.3 standard material hardness ... 9.1.2 reverse operation 9.1.3 when a preload is applied 9.2 motor driving ... torque 9.2.1 driving torque at a constant speed 9.2.2 driving torque ... during acceleration 27-29 3 rbc ball screw selection ... procedure flow chart 4 accuracy of rbc ball screws 4.1 lead accuracy 4. ...

shaft root dia 5.4.2 dm·n value the allowable rotation speed is also restricted by ... the ability of the ball re-circulation system to ... screw manufacturers sell product with a non-heat treated ball re-circulation ... system which limits the dm·n value to about 2,756 in/min 70,000 mm/min rbc s ... standard ball re-circulation systems are heat treated and are rated per the ... 100,000 120,000 120,000 return system type heat treated tube deflector yoke ...

for screw design 5.5.1 thread runoff adjacent diameter the following considerations ... should be given to ensure an economical design for your ball screw ... application the ball thread runoff must extend off ... the loading of the ball nut package a internal deflector type b yoke ... deflector type c flange/base mount housing type 5.5.2 ... screw shaft is induction hardened thus an incompletely hardened zone may be ... present at each end of the screw thread area depending on the design please consider ... nut selection 6.1.1 series the required accuracy delivery size and ball nut style must ... selecting the proper series for your application 6.1.2 ball re-circulation type select ...

model · suitable for high travel rates and large dynamic capacities 6.1.3 design ... tight clearance between the ball nut and mounting housing should be avoided ... ball return system decide the ball nut type ball return method and flange mounting ... from the allowable space for mounting number of circuits ... stiffness and required life a use of wiper please indicate whether or ... not wipers are required wipers are supplied standard on most models wipers ... can affect the nut length b number of circuits ... load/life performance mounting envelope and economic efficiency c lubrication hole ... standard nuts are provided with lubrication holes and/or ...

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 ... 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 ... length inches indicates ball nut style a std singlenut 2-circuit non-preload w/ ... non-preload indicates journal style adjacent to v-thd flange a standard single ... d standard pillow block journal n annealed or blank end o no journal indicates ...

1 position 2 xxxxx 2 indicates series type indicates shop sequence number 11.3 ... 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 ... 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 end indicates annealed length in inches on right end journal ... or standard journal type e e1 f f1,h h1 see sketches length ... in inches of annealed end indicates wiper kit w with wiper ...

external ball return integral flange abcbcaeedd non­preload and integral preload double ... gn-2502 gn-3002 gn-3066 gn-3001 screw type major a/b dia 0.500 0.500 0.625 0.625 0 ... 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 1 ...

tube clearance swept radius for ggjfjf type a type b single nut preload dynamic ... 67,109 154,245 202,204 258,800 258,800 axial play backlash 0.007 0.007 0.007 0.007 0 ...

external ball return optional flange a c f type a i type abje thread form ... acfka type b f c type cbhbe thread form g e thread form a f c ... type d i type b c dhbjge thread form k major model ... 500 1.500 2.250 2.250 ball dia nut lead type a b max c d v thread form e lube hole ... 200 0.200 0.250 0.500 1.000 0.500 1.000 ababbbcddbaba 2.200 2.200 2.200 2.810 2.905 3.370 3. ...

12.7 standard end journals type a­ single bearing agbcfg type b­ duplexed ... bearings abcefdde gn series gn0505 gn0502 gn0605 gn0602 ... 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. ...

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 ... 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 ...

for tube clearance fdae minor dia e type a c major dia h type b c h model no ... 1378 0.1562 0.1378 0.2810 0.2810 0.2810 a max 2.70 2.93 2.93 3.29 3.29 3.01 5.00 ...

1 8 ­ 27 npt b e minor dia e major dia type b c h type a c d c h type aabbaba 1 8 ... ­ 27 npt chchch type c type d type e max model no screw dia rs-0308 0.380 ... max turns no of no of nut std rh/lh per a max b max c max d max circuits starts ... type length circuit 48 rh 2 1 2.5 a 1.89 0.317 0.786 0.915 48 rh 1 1 2.5 e ... 1.01 0.330 0.830 0.830 72 rh 2 1 2.5 a 2.76 0.390 1.067 1.339 72 rh 2 2 3.5 b ... f 1.72 0.505 1.005 1.300 72 rh 2 1 3.5 a 2.89 0.505 1.317 1.521 72 rh 1 1 3.5 d ... b 2.94 0.505 1.317 1.984 144 rh 2 1 3.5 a 3.14 0.630 1.692 1.882 144 lh 2 1 3.5 a ... b 3.10 0.605 1.692 2.172 144 rh 2 1 3.5 a 2.51 0.485 1.692 1.963 144 rh 2 4 1.5 b ... b 4.32 0.875 2.621 2.909 144 rh 2 1 3.5 a 3.26 0.760 2.098 2.427 144 rh 2 1 3.5 a ...

journals miniature fine lead series type aa a type bb a b type cc abcccdp­ ... 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 . ... 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 ... m­ series m-0305 m-0306 m-0505 m-0510 a 0.156 0.156 0.156 0.156 c .1250 1246 . ... 1250 1246 .1875 1871 .1875 1871 a 1.000 1.000 1.125 1.125 b 0.562 0.562 0 ... .1875 1871 d 0.156 0.156 0.156 0.156 a b c dimensions in inches unless ... specified single nut aa aa aa double nut aa bb bb type 4 bb type 1 bb ... aa aa type 7 bb type 2 type 5 bb bb aa type 3 type 6 63 ...

every machine tool manufacturer we are conveniently located in walterboro sc ... which provides easy access throughout the us especially the ... southeast quickturn® is designed to allow us to respond quickly to the problem ... and provide a solution with a minimum of downtime see chart below ... ball screw repair planning guide repair type service lead time typical pricing of ... 30-50 50-70 20-40 50-70 100 evaluation type 1 type type type type type type type 2 ... nut regrind screw new nut complete assembly replaced 2 1 2 5 5 2 5 2 5 6 days week ... weeks weeks weeks weeks weeks warranty all ball screws are repaired by highly ...

bearings in the usa since 1919 in addition to unique custom bearings rbc offers a ... full line of standard industrial and aerospace bearings including spherical plain ... bearings radial angular contact extended inner ring high ... ® duralubetm milltufftm bearings and self-lubricating bearings available in ... inch and metric sizes rod ends commercial and ... mil-spec series self-lubricating and aircraft sold under the heim® unibal® and ... spherco® brands available in inch and metric sizes thin section ball bearings ... inch sizes to 40 inches stainless steel and other materials are available seals are ...