CRWUG CRWU. Built-in rack & pinion type Solves cage creep issue!!

Transcription

1 Crossed Roller ay ni-creep Cae Crossed Roller ay ni-creep Cae Crossed Roller ay Crossed Roller ay ni-creep Cae Crossed Roller ay Uni Crossed Roller ay Uni 3 4

2 eaures of Crossed Roller ay Series wide variey of series producs includin cae misalinmen prevenion mechanism are available! eaures of Crossed Roller ay Crossed Roller ay is a linear moion rollin uide incorporain a roller cae beween wo ways whose wo V-shaped surfaces are used as rack roove. rranemen of cylindrical rollers by orhoonalizin hem alernaely allows receivin of loads in any direcion and execues exremely hih-accuracy and smooh linear moion. Crossed Roller ay CR CR ni-creep Cae Crossed Roller ay CRG ni-creep Cae Crossed Roller ay Uni CRUG ni-creep Cae Crossed Roller ay CRG ni-creep Cae Crossed Roller ay CRG is a produc wih a cae creep proof funcion usin a rack and pinion mechanism oriinaed from he Crossed Roller ay CR feaurin smooh linear moion wih super hih accuracy. CRG is hih load capaciy ype of CRG, which has achieved realy increased load rain by redesinin of raceway of CRG. Buil-in rack & pinion ype Solves cae creep issue!! ni-creep Cae Crossed Roller ay Uni CRUG is a produc wih a cae creep proof funcion-provided Crossed Roller ay CRG mouned ino a round-finished riid able and bed. CRUG srucure 5 Rack Crossed Roller ay Uni CRU Pinion ear Oriinal rack & pinion srucure Cylindrical rollers Cae Rack Cylindrical rollers Cae Rack Roller cae Rack Pinion ear Roller cae eaures of Buil-in Rack & Pinion Type Solves Cae Creep Issue Perfec soluion for cae creep issues by a buil-in rack and pinion mechanism as an oriinal desin. reedom in ounin This series is reliable for applicaions such as verical axis where Crossed Roller ay may have chances of cae creep. ih-speed and ih-tac Operaion ny correcive operaion for cae creep is no necessary even for hih velociy operaion. Savin nery o remedy moion of cae is necessary even in lon erm operaion. asy Replacemen Since hey have he same exernal dimensions o hose of he exisin Crossed Roller ay and Crossed Roller ay Uni, exisin Crossed Roller ay and Crossed Roller ay Uni can be replaced Pinion ear wihou any mounin dimensions modificaion. Durabiliy es Tes condiions odel number CRG3 Tes mehod Vibraion es machine Resul Condiion Toal cycles Inerchaneable in ounin Dimensions dopion of oriinal srucure of arranin a rack inside he way keeps he same mounin dimensions as convenional Crossed Roller ay CR. * The mounin dimensions of CRG1 and CR1 are differen. Improved Runnin ccuracy xremely hih runnin accuracy can be achieved wihou run deflecion by recirculain ype linear moion rollin uide. CRG CRG Posure aximum velociy cceleraion umber of cycle Sroke lenh ass of movin par Verical 827 mm/s 15 G 31 z 8 mm ,000,000 cycles Smooh and xremely-ih ccurae Operaion Combinaion of precisely finished raceways and non-recirculain ype linear moion rollin uide wih super hih precision rollers provides superbly smooh moion wih very hih accuracy. Rack o cae creep even under hih-ac operaion in verical axis! o cae creep nor maerial damae in any componen is found. CRUG Rack Pinion ear Rack Pinion ear CR CRU CRG Suiable for icro-eedin Improvemen of precision posiionin accuracy and superior correspondin feaure o micro-feedin command can be expeced because of he linear moion wihou sick-slip by exremely small fricional resisance. 1=0.102kf=0.2248lbs. Vibraion machine 6

3 ni-creep Cae Crossed Roller ay CRG Idenificaion umber and Specificaion xample of an idenificaion number The specificaions of CRG series, CRG series, and CR series are indicaed by he idenificaion number. Indicae he idenificaion number, consisin of a model code, a dimension, a par code, a maerial code, a classificaion symbol, and any supplemenal codes for each specificaion o apply. Pinion ear CRG series CRG series CRG SP /B Rack CR series Sandard ype CR C20 S SP /U ni-creep Cae Crossed Roller ay CRG ay CR C36 S SP /U odule ype CR C20 SP /U CR C20 SP /U ay Cylindrical rollers cae Roller cae 1 odel odel code Pae 9 Rack Crossed Roller ay CR/CR nd screw Size ay lenh umber of cylindrical rollers Dimensions Pae 9 Par code Pae 10 Poins 5 aerial ype aerial code Pae 10 Superior load balance 1 This uni has a roller cae wih cylindrical rollers alernaely orhoonalized beween wo ways whose wo V-shaped surfaces are used as rack roove, which allows receivin of loads in any direcion. 2 Solves cae creep problem CRG and CRG unis, which have oriinally-desined rack and pinion mechanism buil-in, solve he cae creep issue and suppor hih-speed & hih-ac operaion and verical axis applicaion. 4 Sandard ype and module ype There are wo ypes in he CR: one is sandard ype of usin four ways and wo roller caes in combinaion as a se and he oher is module ype of inerain wo inernal ways in a sinle srucure. 5 asy mounin The mounin holes of he way are provided wih borin and female hread, so ha he mounin srucure is no resriced.the module ype wih wo inernal ways ineraed in a sinle srucure is simple in mounin srucure, hus producin hih accuracy linear moion. 6 ccuracy class Classificaion symbol 7 Special specificaion Supplemenal code Pae 11 Pae 11 oe: One se of he CR, CRG, and CRG... series consiss of a combinaion of four ways and wo roller caes. 3 ih load capaciy ype CRG CRG has achieved realy increased load rain by redesinin of raceway of CRG, hereby downsizin he machine and equipmen and prolonin heir lifeime. Sainless seels superior in corrosion resisance are lised on lineup. 6Producs made of sainless seel are hihly resisance o corrosion, so ha hey are suiable for applicaions where rus prevenion oil is no preferred, such as in a cleanroom environmen. 7 1=0.102kf=0.2248lbs. 8

4 Idenificaion umber and Specificaion 1 2 odel Size ni-creep Cae Crossed Roller ay CRG series ni-creep Cae Crossed Roller ay CRG series Crossed Roller ay CR series or applicable models and sizes, see i. 1. Sandard ype odule ype odel Size CRG CRG CR CR 1, 2, 3, 4, 6, 9, 12, 15, 18, 24 or applicable models and sizes, see Table 1. Table 1 odels and Sizes of CRG series, CRG series, and CR series Series aerial odel CRG ih carbon seel made Size CRG ay lenh umber of Cylindrical Rollers aerial Type 3 ay lenh Specifyin he combinaion of differen way lenhs Combinaion of sandard ype This combinaion consiss of wo shor ways, wo lon ways, and wo roller caes, as a se. In his case, make sure o specify he number of rollers o be incorporaed in he roller caes. (or calculaion of incorporaed rollers, see he Selecion of CR Series on pae -17.) xample CR C24 Combinaion of module ype The way lenh is indicaed in mm. The CR series can be combined wih a way of differen lenh. or deails of way lenh, see he dimension ables on paes -27 o -52. This combinaion consiss of one lon cener way, wo shor ways, and wo roller caes, as a se. In his case, make sure o specify he number of rollers o be incorporaed in he roller caes. (or calculaion of incorporaed rollers, see he Selecion of CR Series on pae -17.) xample CR C20 CRG ih carbon seel made CRG The number of cylindrical rollers o be incorporaed in a uni: 24 enh of lon way: 400 mm The number of cylindrical rollers o be incorporaed in a uni: 20 enh of shor ouside way: 150 mm Sandard ype ih carbon seel made CR enh of shor way: 300 mm enh of lon cener way: 200 mm CR Sainless seel made CRS odule ype ih carbon seel made CR 4 umber of cylindrical rollers o symbol C This represens he number of cylindrical rollers incorporaed ino a CR series cae. If no direced, he number of cylindrical rollers indicaed in he dimension able shall be incorporaed in a roller cae. 5 aerial ype ih carbon seel made Sainless seel made o symbol S or applicable models and sizes, see i =0.102kf=0.2248lbs. 10

5 ccuracy Class Special Specificaion Special Specificaion 6 ccuracy class Sandard Super precision o symbol SP or parallelism of he raceway o reference mounin surface and he olerance of he parallelism of wo raceways of CR, see i. 1. Special mounin screw /B Preload adjusin-side way can be moved by adjusin he preload. llowance for movemen is required beween a way fixin screw and mounin hole, bu special mounin screws are provided for he cases where enouh allowance is no provided or a fixin screw should be mouned from he way side as shown in i. 2. This special mounin screw can also be used for he case where he mounin hole for mounin he fixed-side way and posiionin accuracy of female hread are no enouh. This special mounin screw is hih carbon seel-made only. B B Table 4 Dimensions of special mounin screw S CRG, CRG, CR CR D d 10 Parallelism μm SP ay lenh mm i. 1 ccuracy Bol size uni: mm Size Bol size d D S i. 2 ounin by special mounin screw 7 Special specificaion B,, S, SB, U or applicable special specificaions, see Table 2. or combinaion of muliple special specificaions, see Table 3. or deails of special specificaions, see paes -11 o -14. ih riidiy roller cae / Table 2 pplicaion of special specificaions Special specificaion Supplemenal code Size Special mounin screw /B ih riidiy roller cae 1 2 / nd sopper S 2 /S nd sopper SB 2 /SB iper seal 2 /U oes 1 o applicable o module ype. 2 o applicable o CRG series and CRG series. The cae is chaned ino a hih riidiy copper alloy-made cae desined o sui verical axis applicaion. This cae has a srucure o preven a roller from droppin off in one-side direcion. or usin a hih riidiy roller cae for verical axis applicaion, i is recommended o use he cae in combinaion wih end sopper SB. Table 3 Combinaion of special specificaions S SB U B S SB Remarks 1. The combinaion of "" shown in he able is no available. 2. hen usin muliple ypes for combinaion, please indicae by arranin he symbols in alphabeical order. 11 1=0.102kf=0.2248lbs. 12

6 Special Specificaion Special Specificaion nd sopper S /S hen he sroke frequency is hih and cae creep may be caused by he vibraion and non-uniformly varyin load, he end screw is chaned ino end sopper S. or he series of size 1, an end sopper S accordin o end sopper S is included as sandard. iper seal /U In order o preven forein subsances from enerin ino a raceway, he wiper seal is chaned ino he one wih a funcion of end sopper SB. The wiper seal canno be mouned on all way ends. Sandard mounin posiions are shown in i. 4. The mounin posiions can be chaned by loosenin he screw. Table 5 Dimensions of end sopper S 1 Table 7 Dimensions of wiper seal uni: mm Size 1 2 Size uni: mm Size 1 2 Size i. 4 rranemen of wiper seal nd sopper SB /SB hen usin a hih riidiy roller cae for verical axis applicaion, he end screw is chaned ino end sopper SB o reulae he cae sroke a he end. The end sopper SB canno be mouned on all way ends. Sandard mounin posiions are shown in i. 3. The mounin posiions can be chaned by loosenin he screw. Table 6 Dimensions of end sopper SB 1 2 uni: mm Size 1 2 Size i. 3 rranemen of end sopper SB 13 1=0.102kf=0.2248lbs. 14

7 oad Rain and llowable oad Basic dynamic load rain C, basic saic load rain C 0, and allowable load of he CRG series and CRG series show values for downward loads in case of parallel arranemen of four ways and wo pairs of roller caes as one se. (Refer o i. 5) In addiion, he upward and laeral load rain is he same as downward load rain. or he CR series, since he number of cylindrical rollers ha share load of each direcion varies, he load rain for each load direcion and allowable load mus be obained. In addiion, basic dynamic load rain C U, basic saic load rain C 0U, and allowable load U in he dimension able show values per cylindrical roller. Basic dynamic load rain C, basic saic load rain C 0, and allowable load of he CR series are obained based on he equaion indicaed in Table 8.1 and Table 8.2. or more informaion on he definiion of load rain and calculaed load, see pae -3. C, C0, i. 5 Direcion of load rain of he CRG series and CRG series Table 8.2 Calculain formula of load rain and allowable load of module ype CR series oad direcion Upward and downward load 1/2 of he loa/2 of he load oad aeral load Basic dynamic load rain C C r {( Z 1/ ) 2p } ( Z 2 ) 3/4 2 7/9 C 7 U C a {( Z 2 1 ) 2p } 1/36( Z 2 ) 3/4 2 7/9 C 10 U Basic saic load rain C 0 C 0r 2 ( Z 2 )C 0U 8 C 0a 2 ( Z 2 )C 0U 11 llowable load r 2 ( Z 2 ) U 9 a 2 ( Z 2 ) U 12 oad oad llowable load llowable load refers o load of smooh rollin moion on conac surface o which maximum conac sress is applied and he sum of whose elasic deformaion of rollin elemens and raceway is small. Therefore, use applied load wihin he allowable load rane if very smooh rollin moion and hih accuracy are required. Table 8.1 Calculain formula of load rain and allowable load of sandard ype CR series Upward and downward load 1 oad aeral load Code descripion C r Basic dynamic load rain in case upward and downward load is applied C a Basic dynamic load rain in case laeral load is applied C 0r Basic saic load rain in case upward and downward load is applied C 0a Basic saic load rain in case laeral load is applied r llowable load in case upward and downward load is applied a llowable load in case laeral load is applied The number of cylindrical rollers incorporaed in a roller cae Z (omi he fiures afer he decimal fracions for Z 2 ) p Iner-pich dimensions of cylindrical rollers mm C U Basic dynamic load rain per cylindrical roller C 0U Basic saic load rain per cylindrical roller U llowable load per cylindrical roller oad direcion oad oad oad Basic dynamic load rain C C r {( Z 2 1 ) 2p } 1/36( Z 2 ) 3/4 C U 1 C a {( Z 2 1 ) 2p } 1/36( Z 2 ) 3/4 2 7/9 C U 4 Basic saic load rain C 0 C 0r ( Z 2 )C 0U 2 C 0a 2 ( Z 2 )C 0U 5 llowable load r ( Z 2 ) U 3 a 2 ( Z 2 ) U 6 Code descripion C r Basic dynamic load rain in case upward and downward load is applied C a Basic dynamic load rain in case laeral load is applied C 0r Basic saic load rain in case upward and downward load is applied C 0a Basic saic load rain in case laeral load is applied r llowable load in case upward and downward load is applied a llowable load in case laeral load is applied The number of cylindrical rollers incorporaed in a roller cae Z (omi he fiures afer he decimal fracions for Z 2 ) p Iner-pich dimensions of cylindrical rollers mm C U Basic dynamic load rain per cylindrical roller C 0U Basic saic load rain per cylindrical roller U llowable load per cylindrical roller oe 1 : In case of parallel arranemen in his load direcion, calculaion mus be performed based on he equaions 7, 8, and 9in Table =0.102kf=0.2248lbs. 16

8 Selecion of CR Series or selecion of CR series specificaions, sroke lenh and he number of cylindrical rollers, as well as accuracy, load rain and allowable load, mus be deermined. Sroke lenh and he number of cylindrical rollers Sroke lenh of he CR series affecs he way lenh and he number of cylindrical rollers. Therefore, selec specificaions by followin he procedure below akin ino accoun he sroke lenh used and applied load. Calculaion of cae lenh and he number of rollers ih he way lenh and maximum sroke lenh deermined, he allowable lenh for cae can be calculaed. Calculaion mehod of he cae lenh varies dependin on specificaions of end screws and end sopper fied o he way end. (1) ih sandard end screws and end sopper S (excludin Size 1 series) The dimensions beween rollers a boh ends is obained from he followin equaion by usin a value obained by subracin a half of he maximum sroke lenh from he way lenh. (2) or Size 1 series The sroke lenh is reulaed by cae and end sopper and he cae lenh is obained by he followin equaion. R S 1 2 here R: llowable cae lenh mm : ay lenh mm S 1 : aximum sroke lenh mm S 1 (17) Calculaion examples orm of use CR 6 pplied load P 7000 Sroke lenh S 195 mm Selec specificaions for parallel use of Crossed Roller ay under he above condiions (refer o i. 26 in pae -23). Calculaion of way lenh The way lenh is calculaed from he equaion (13). Calculaion of way lenh The way lenh, which should be 1.5 imes loner han he sroke lenh used, is obained from he equaion below. 1.5S (13) here : ay lenh mm S: Sroke lenh used mm S R S 1 2 (15) here R : llowable dimensions beween rollers a boh ends mm : ay lenh mm S 1 : aximum sroke lenh mm S 1 /2 S 1 S 1 /2 R The number of rollers o be incorporaed in a roller cae is obained by he followin equaion. S 1 /2 1.5S Therefore, selec = 300 mm based on he sandard lenh in he dimension able. Calculaion of maximum sroke lenh The maximum sroke lenh S 1 is calculaed from he equaion 14. S 1 1 S S Calculaion of maximum sroke lenh Ideally he sroke lenh used should be less han 80% of he maximum sroke lenh, which is obained from he equaion below. S S (14) here S 1 : aximum sroke lenh mm S : Sroke lenh used mm The number of rollers o be incorporaed in a roller cae is obained by he followin equaion. Z RD p R 1 (16) here Z : umber of cylindrical rollers (fiures afer he decimal fracions are omied) R : llowed dimensions beween rollers a boh ends mm D : Diameer of cylindrical rollers (refer o he dimension able) mm p : Iner-pich dimensions of cylindrical rollers (refer o he dimension able) mm S 1 /2 Z R2e 1 p (18) here Z : umber of cylindrical rollers (fiures afer he decimal fracions are omied) R: llowable cae lenh mm e : nd dimension of cae (refer o he dimension able) mm p : Iner-pich dimensions of cylindrical rollers (refer o he dimension able) mm (3) or end sopper SB and wiper seal The sroke lenh is reulaed by cae and end sopper or wiper seal and he cae lenh is obained by he followin equaion. R= 2 S 1 (19) here R : llowable cae lenh mm : ay lenh mm S 1 : aximum sroke lenh mm 2 : Thickness of end sopper SB or wiper seal mm (See Table 6 in pae -13, and Table 7 in pae -14) llowable dimensions beween rollers a boh ends R is calculaed from he equaion (15). R S Calculaion of he number of rollers The number of cylindrical rollers Z is calculaed from he equaion (16). owever, D and p in his form are D = 6 mmp = 9 mm accordin o he dimension able. Z RD p 9 Therefore, i should be Z = 20 by omiin fiures afer he decimal fracions. Calculaion of allowable load llowable load in parallel arranemen is calculaed from equaion (9) described in Table 8.2 in pae -16. owever, allowable load per cylindrical roller U is U = 769 accordin o he dimension able. 2( Z 2 ) U 2( 20 2 ) Therefore, allowable load is larer han applied load P = hen allowable load becomes smaller han applied load, i is necessary o increase he number of cylindrical rollers by exendin way lenh, or increase he cylindrical roller diameer. R S 1 2 Deerminaion of specificaions Specificaions obained in accordance wih he above is CR6-300 and he number of cylindrical rollers is 20. The number of rollers o be incorporaed in a roller cae is obained by he equaion (18) as wih he Size 1 series. 17 1=0.102kf=0.2248lbs. 18

9 ubricaion Precauion for Use Grease is no pre-packed in he CRG series, CRG series and CR series, so please perform adequae lubricaion as needed. Boh of oil lubricaion and rease lubricaion are available in he CRG series, CRG series and CR series. Generally, oil lubricaion should be seleced for hih speed or low fricional resisance, and rease lubricaion for low speed. or rease lubricaion, use of hih-qualiy lihium-soap base rease is recommended. or lih load and low speed, apply rease or oil o raceway, rack and pinion ear firs and hen reapply accordinly. owever, he srucure as indicaed in he i. 6 allows for easy reapplicaion. In addiion, since he clearance beween ways is small for CRG series, apply rease or oil direcly o raceway for re-reasin. i. 6 xample of lubricaion sysem Dus Proecion Since he CRG series, CRG series and CR series are finished wih hih accuracy, harmful forein subsances such as dus and paricles enerin ino he bearin will cause low life or impaired accuracy. To preven harmful forein subsances such as dus, paricles and waer from ouside from enerin, i is recommended o aach non-conac ype labyrinh seal as indicaed in i. 7, or conac ype wiper seal as indicaed in he i. 8 o boh sides. andlin s he CRG series, CRG series and CR series are desined hihly precisely, ake exra care for handlin. pinion ear and cylindrical roller are incorporaed wih he cae for he CRG series and CRG series. hen he cae is dropped or handled rouhly, he pinion ear and cylindrical roller may come off. specially for CRG, rabbin he cylindrical roller may ake i off, so be sure o hold he cae body for handlin. In addiion, do no cu off he cae as doin so may cause pinion ear comin off and breakae of ear join secion. rack is incorporaed wih he way for he CRG series and CRG series. In operaion, ake noe ha he rack may come off when he end screw is removed. Thouh he cae for he CR series may cu off o necessary lenh, handle i wih care no o deform i when cuin. ccuracy of mounin par xamples of ypical mounin surface processin are shown in i. 9.1 and i General processin accuracy of mounin surface is accordin o Table 9. owever, care should be exercised as mounin surface accuracy direcly affecs runnin accuracy. specially when hih runnin accuracy is required, he processin accuracy hiher han ha indicaed in Table 9 is required. B C i. 9.1 xample of processin of CRG, CRG and CR mounin surface C B Table 9 ccuracy of mounin par ccuracy of surface ccuracy of B and C surfaces Direcly affecs runnin accuracy. or he flaness of wo mounin surfaces on able and bed sides, allowable value approximae o he parallelism indicaed in i. 1 in pae -11 is recommended. laness ffecs preload (refer o Preload adjusmen mechanism). 11llowable value approximae o he parallelism indicaed in i. 1 in pae -11 is recommended. Squareness ffecs riidiy in preload direcion of he mounin par of he CRG series, CRG series and CR series. Process o sufficienly hih accuracy. of mounin par or he opposie corner of he main reference mounin, i is recommended o have relieved fille as indicaed in i. 10. In addiion, a clearance of 0.5 mm or hiher should be made beween he way and he main member maerial. 0.5 or hiher i. 10 of mounin par Preload adjusmen mechanism or use wih preload, use he preload adjusin screw as indicaed in i. 11 as a eneral way. Preload adjusin screw nominal dimensions and mounin posiion should be in accordance wih he way fixin bol dimensions and posiion. Press he cener of he way dimensions. Preload amoun varies dependin on operaional condiions of your machine and device. owever, as excessive preload may lead o shor life and damae on he raceway, i is ypically ideal o adjus o zero clearance or slih preload sae. hen accuracy and riidiy are required, use a push plae or apered jib as indicaed in i. 12 and i. 13, respecively. 0.5 or hiher i. 12 xample of push plae i. 13 xample of apered jib Operain emperaure s synheic resin componens are used for he CRG series and CRG series, he maximum operain emperaure is 120 C, while i should be lower han 100 C for coninuous use. hen i exceeds 100 C, conac. s synheic resin componens are no used for he CR series, i may be used a hih emperaure. owever, when i exceeds 100 C, conac. aximum velociy Operain velociy should be lower han 50 m/min for he CRG series and CRG series, and lower han 30 m/ min for he CR series. Tihenin orque for fixin screw Typical ihenin orque for mounin of he CRG series, CRG series and CR series is indicaed in Table 10. hen vibraion and shock are lare or momen load is applied, i is recommended o fix by usin he orque 1.3 imes larer han ha indicaed in he able. In addiion, when hih runnin accuracy is required wih no vibraion and shock, i may be fixed by usin orque smaller han ha indicaed in he able, however, i is recommended o use adhesive aen o fasen he screw, or o use sop bols. 19 i. 7 xample of labyrinh seal i. 8 xample of wiper seal i. 9.2 xample of processin of CR mounin surface i. 11 xample of ypical preload adjusmen Table 10 Tihenin orque for fixin screw Tihenin orque Remark: Bol size m hen fixin screws used on he able side and bed side are no idenical, fasen hem all o he smaller ihenin orque =0.102kf=0.2248lbs. 20

10 ounin ounin of CRG series and CRG series Typical mounin srucure is shown in i. 14. or mounin a his poin, enerally follow he procedure below. ixin-side way Bed-side way Bed-side way Preload-adjusmenside way ounin of bed-side way Properly alin he way wih mounin surface and emporarily ihen fixin screws evenly o he ihenin orque. hile makin he way sickin o B surface (refer o i. 15) ih, fully ihen he screws o he specified orque. hen hih runnin accuracy is required, fully and evenly ihen hem o he specified orque while checkin he parallelism of he raceway alon he full lenh of he way. Typical ihenin orque for fixin screw is accordin o Table 10 in pae -20. Posiion he able-side way in he sroke end posiion. (Refer o i. 19) ae he pinion ear a he cener of he cae and he rack of he able-side way. Temporarily ihen he able fixin screws. (Refer o i. 22) Preload adjusin screw i. 14 ounin example of CRG and CRG Preparaion for mounin Producs are packed by se (4 ways an pairs of roller caes). Be careful no o mix wih oher ses. Remove end screws and end sopper, clean up each par wih clean wash fluid and hen apply rus prevenion and lubricaion oil. Cleanup of mounin surface Remove burrs and blemishes on he machine mounin surface wih an oil-sone, ec. Be careful abou corner roove on he mounin surface, oo. ipe off dus and dir wih clean cloh and apply rus prevenion and lubricaion oil lihly. i. 16 ccuracy of way mounin i. 19 Posiion he able-side way approximaely in he sroke cener posiion. (Refer o i. 20) i. 22 ully sroke he able sofly and check ha i is wihin he sroke rane used and cylindrical rollers on boh ends of he cae do no conac wih end screws of he way. If hey make conac, ake he procedure aain. (Refer o i. 23) Corner roove Corner roove ounin surface C ounin surface ounin surface i. 17 i. 20 ounin surface B ounin surface B ounin surface ounin surface Corner roove Operaion of able and bed Posiion he roller caes a he sroke end posiions of he bed-side way. (Refer o i. 18) ae he pinion ear a he cener of he cae and he rack of he way. his poin, be careful no o deform he cae. Posiion he able while holdin he way o preven i from movin. (Refer o i. 21) i. 23 i. 15 ounin surface i. 21 i =0.102kf=0.2248lbs. 22

11 ounin Preload adjusmen Preload adjusmen is performed wih fixin screws of he able-side way ihened emporarily. Preload adjusmen is sared from he preload adjusin screw a he cener of way lenh and hen boh ends in urn. hile measurin he clearance on he able sides, ihen he preload adjusin screws subsequenly unil deflecion of he dial aue sops. easure he ihenin orque for preload adjusin screws a his poin. hen adjusin preload adjusin screw near eiher end, sroke he able sofly and check ha he cylindrical roller is on he preload adjusin screw secion. fer he above procedure, he clearance becomes zero or in slih preload sae, bu preload is sill no adjused evenly. ih he same procedure aain, re-adjus all he preload adjusin screws evenly o he orque previously measured. i. 24 xample of preload adjusmen mehod ull ihenin of preload-adjusmen-side way ixin screws are lihly ihened o even orque. s wih preload adjusin screws, emporarily fix hem o orque similar o he specified orque in urn from he way cener o boh ends. hen ihenin fixin screws near eiher end, sroke he able sofly and check ha he cylindrical roller is on fixin screw secion. inally wih he same procedure, fully ihen all he fixin screws evenly o he specified orque. Check afer assembly ully sroke he able sofly and check ha runnin is smooh wihou abnormal noise. easure he able upper and side surfaces wih dial aue or he like and check he runnin accuracy. ounin of sandard ype CR series Typical mounin srucure is shown in i. 26. or mounin a his poin, enerally follow he procedure below. ixin-side way Bed-side way Bed-side way i. 26 ounin example of sandard ype CR series Preparaion for mounin Producs are packed by se (4 ways an pairs of roller caes). Be careful no o mix wih oher ses. Remove end screws and end sopper, clean up each par wih clean wash fluid and hen apply rus prevenion and lubricaion oil. Cleanup of mounin surface Remove burrs and blemishes on he machine mounin surface wih an oil-sone, ec. Be careful abou corner roove on he mounin surface, oo. ipe off dus and dir wih clean cloh and apply rus prevenion and lubricaion oil lihly. Corner roove Corner roove i. 27 ounin surface Preload-adjusmenside way ounin surface C ounin surface ounin surface ounin surface B ounin surface Corner roove ounin surface B ounin surface Preload adjusin screw ounin of bed-side way Properly alin he way wih mounin surface and emporarily ihen fixin screws evenly o he ihenin orque. hile makin he way sickin o B surface (refer o i. 27) ih, fully ihen he screws o he specified orque. hen hih runnin accuracy is required, fully and evenly ihen hem o he specified orque while checkin he parallelism of he raceway alon he full lenh of he way. Typical ihenin orque for fixin screw is accordin o Table 10 in pae -20. i. 28 ccuracy of way mounin ounin of able-side way Properly alin he fixin-side way wih mounin surface and emporarily ihen fixin screws evenly o he ihenin orque. hile makin he fixin-side way sickin o C surface ih, fully ihen he screws o he specified orque. Se back he preload adjusin screws in advance, make he preload-adjusin-side way sickin o he mounin surface, and hen emporarily ihen fixin screws lihly o he even orque. C surface ixin-side way i. 29 ounin of able-side way Preload-adjusmen-side way Preload adjusin screw Operaion of able and bed ake alinmen of he posiion in heih and cross direcion so ha he roller cae can be insered beween he able-side way and bed-side way. Carefully inser he roller cae and assembly i a approximae cener of he way lenh. his poin, be careful no o deform he cae. oun end screws and end sopper of each way. Push he enire able aains he preload adjusin screws and ihen he preload adjusin screws o make emporary adjusmen unil he clearance beween ways becomes zero. ully sroke he able sofly and correc he roller cae posiion o he cener. i. 30 Posiion alinmen before operaion Preload adjusmen Preload adjusmen is performed wih fixin screws of he preload-adjusin-side way ihened emporarily. Preload adjusmen is sared from he preload adjusin screw a he cener of way lenh and hen boh ends in urn. hile measurin he clearance on he able sides, ihen he preload adjusin screws subsequenly unil deflecion of he dial aue sops. easure he ihenin orque for preload adjusin screws a his poin. hen adjusin preload adjusin screw near eiher end, sroke he able sofly and check ha he cylindrical roller is on he preload adjusin screw secion. fer he above procedure, he clearance becomes zero or in slih preload sae, bu preload is sill no adjused evenly. ih he same procedure aain, re-adjus all he preload adjusin screws evenly o he orque previously measured. i. 31 xample of preload adjusmen mehod i. 25 ccuracy check afer assembly 23 1=0.102kf=0.2248lbs. 24

12 ounin ull ihenin of preload-adjusmen-side way ixin screws are lihly ihened o even orque. s wih preload adjusin screws, emporarily fix hem o orque similar o he specified orque in urn from he way cener o boh ends. hen ihenin fixin screws near eiher end, sroke he able sofly and check ha he cylindrical roller is on fixin screw secion. inally wih he same procedure, fully ihen all he fixin screws evenly o he specified orque. Check afer assembly ully sroke he able sofly and check ha runnin is smooh wihou abnormal noise. easure he able upper and side surfaces wih dial aue or he like and check he runnin accuracy. ounin of module ype CR series Typical mounin srucure of CR is shown in i. 33. or mounin a his poin, enerally follow he procedure below. ixin-side way Cener way Preload-adjusmenside way Preload adjusin screw Processin of dowel pin hole hen dowel pins are used, machine holes on he bed in alinmen wih dowel pin holes near eiher end of he cener way. Dowel pin hole of he cener way is finished for 7. inish bed holes in he same way. Diameer and is allowance of dowel pin hole of he cener way vary dependin on he dimension able. liminae cuin chips and clean up aain as necessary. hen machines for mounin of he cener way are lare, clean hem up wih he cener way removed and hen reassemble. oad he dowel pins and check he parallelism of he reference surface of he runnin parallelism and he raceway of he cener way aain. ain marks module ype CR series CR has main marks o ensure he bes runnin accuracy afer mounin based on he parallelism measuremen resul of reference mounin surface and raceway. hen assemblin he ways, alin he main marks of ways wih he same end side as indicaed in i. 36. ain mark Cener way i. 33 xample of mounin of CR ain mark i. 32 ccuracy check afer assembly Preparaion for mounin Crossed Roller ay CR is packed by se (1 cener way, 2 ways an pairs of roller caes). Be careful no o mix wih oher ses. Remove end screws and end sopper, clean up each par wih clean wash fluid and hen apply rus prevenion and lubricaion oil. i. 36 ain marks of CR Cleanup of mounin surface Remove burrs and blemishes on he machine mounin surface wih an oil-sone, ec. Be careful abou corner roove on he mounin surface, oo. ipe off dus and dir wih clean cloh and apply rus prevenion and lubricaion oil lihly. i. 35 achinin of dowel pin hole ounin of able-side way ollow he mounin of sandard ype CR series. ounin of cener way Rouhly alin he cener way o he mounin surface and lihly fix i wih fixin screws. hile measurin mounin parallelism of he cener way and raceway o he reference surface of runnin parallelism for posiion correcion, emporarily ihen he fixin screws o he even ihenin orque. venly ihen all he fixin screws o he specified ihenin orque. Operaion of able and bed ollow he mounin of sandard ype CR series. Preload adjusmen ollow he mounin of sandard ype CR series. ull ihenin of preload-adjusmen-side way ollow he mounin of sandard ype CR series. Check afer assembly ollow he mounin of sandard ype CR series. Runnin parallelism reference surface i. 34 ounin accuracy check for cener way 25 1=0.102kf=0.2248lbs. 26

13 ni-creep Cae Crossed Roller ay CRG Size n R e p Z umber of rollers D h Idenificaion number CRG ass (Ref.) ominal dimensions mm aximum sroke lenh ay 1 Roller cae 2 Boundary dimensions Dimension of roller cae ounin dimensions n D R Z p e h mm CRG Basic dynamic load rain C Basic saic load rain C 0 llowable load CRG CRG CRG CRG CRG CRG CRG CRG CRG CRG CRG CRG CRG CRG CRG CRG oes 1 The value shows he mass of a piece of way. 2 The value shows he mass of a roller cae. This is he value when a combinaion of four ways and wo roller caes is used in parallel arranemen. 27 1=0.102kf=0.2248lbs. 28

14 ni-creep Cae Crossed Roller ay CRG Size n R e p Z umber of rollers D h Idenificaion number CRG ass (Ref.) ominal dimensions mm aximum sroke lenh ay 1 Roller cae 2 Boundary dimensions Dimension of roller cae ounin dimensions n D R Z p e h mm CRG Basic dynamic load rain C Basic saic load rain C 0 llowable load CRG CRG CRG CRG CRG CRG CRG CRG CRG CRG CRG oes 1 The value shows he mass of a piece of way. 2 The value shows he mass of a roller cae. This is he value when a combinaion of four ways and wo roller caes is used in parallel arranemen. 29 1=0.102kf=0.2248lbs. 30

15 ni-creep Cae Crossed Roller ay CRG Size n n R e p Z (umber of rollers) D h CRG 1 CRG 31 Idenificaion number CRG ass (Ref.) ominal dimensions mm aximum sroke lenh ay 1 Roller cae 2 Boundary dimensions Dimension of roller cae ounin dimensions n D R Z p e h mm CRG CRG Basic dynamic load rain C Basic saic load rain C 0 llowable load CRG CRG CRG CRG CRG CRG CRG CRG CRG CRG CRG CRG CRG CRG CRG CRG CRG CRG CRG CRG CRG CRG CRG CRG CRG CRG CRG CRG CRG oes 1 The value shows he mass of a piece of way. 2 The value shows he mass of a roller cae. This is he value when a combinaion of four ways and wo roller caes is used in parallel arranemen. 1=0.102kf=0.2248lbs. 32

16 Crossed Roller ay Sandard ype Size CR CRS n e p R Z umber of rollers D h Idenificaion number CR 1-20 ay 1 k/m ass (Ref.) ominal dimensions mm Basic dynamic Boundary dimensions Dimension of roller cae ounin dimensions load rain Roller cae 2 CR 1-20 S CR 1-30 CR 1-30 S CR 1-40 CR 1-40 S CR 1-50 CR 1-50 S CR 1-60 CR 1-60 S CR 1-70 CR 1-70 S CR 1-80 CR 1-80 S oes 1 The value shows he mass per meer of a way. 2 The value shows he mass of a roller cae wih en cylindrical rollers. The value shows he load of a cylindrical roller. n D R Z p e h C U Basic saic load rain C 0U llowable load U 33 1=0.102kf=0.2248lbs. 34

17 Crossed Roller ay Sandard ype Size CR CRS n e p R Z umber of rollers D h Idenificaion number CR 2-30 ass (Ref.) ominal dimensions mm Basic dynamic Boundary dimensions Dimension of roller cae ounin dimensions load rain ay 1 Roller cae 2 C 3 U n D R Z p e h k/m CR 2-30 S CR 2-45 CR 2-45 S CR 2-60 CR 2-60 S CR 2-75 CR 2-75 S CR 2-90 CR 2-90 S CR CR S CR CR S CR CR S CR CR S CR CR S CR CR S oes 1 The value shows he mass per meer of a way. 2 The value shows he mass of a roller cae wih en cylindrical rollers. The value shows he load of a cylindrical roller Basic saic load rain C 0U llowable load U 35 1=0.102kf=0.2248lbs. 36

18 Crossed Roller ay Sandard ype Size CR CRS n e p R Z umber of rollers D h Idenificaion number CR 3-50 ay 1 k/m ass (Ref.) ominal dimensions mm Basic dynamic Boundary dimensions Dimension of roller cae ounin dimensions load rain Roller cae 2 CR 3-50 S CR 3-75 CR 3-75 S CR CR S CR CR S CR CR S CR CR S CR CR S CR CR S CR CR S CR CR S CR CR S oes 1 The value shows he mass per meer of a way. 2 The value shows he mass of a roller cae wih en cylindrical rollers. The value shows he load of a cylindrical roller. n D R Z p e h C U Basic saic load rain C 0U llowable load U 37 1=0.102kf=0.2248lbs. 38

19 Crossed Roller ay Sandard ype Size CR CRS n e p R Z umber of rollers D h Idenificaion number CR 4-80 ay 1 k/m ass (Ref.) ominal dimensions mm Basic dynamic Boundary dimensions Dimension of roller cae ounin dimensions load rain Roller cae 2 CR 4-80 S CR CR S CR CR S CR CR S CR CR S CR CR S CR CR S CR CR S CR CR S CR CR S CR CR S oes 1 The value shows he mass per meer of a way. 2 The value shows he mass of a roller cae wih en cylindrical rollers. The value shows he load of a cylindrical roller. n D R Z p e h C U Basic saic load rain C 0U llowable load U 39 1=0.102kf=0.2248lbs. 40

20 Crossed Roller ay Sandard ype Size CR CRS n e p R Z umber of rollers D h Idenificaion number CR ay 1 k/m ass (Ref.) ominal dimensions mm Basic dynamic Boundary dimensions Dimension of roller cae ounin dimensions load rain Roller cae 2 CR S CR CR S CR CR S CR CR S CR CR S CR CR S CR CR S CR CR S CR CR S CR CR S CR CR S oes 1 The value shows he mass per meer of a way. 2 The value shows he mass of a roller cae wih en cylindrical rollers. The value shows he load of a cylindrical roller. n D R Z p e h C U Basic saic load rain C 0U llowable load U 41 1=0.102kf=0.2248lbs. 42

21 Crossed Roller ay Sandard ype CR Size n e p R Z umber of rollers D h Idenificaion number CR ay 1 k/m ass (Ref.) ominal dimensions mm Basic dynamic Boundary dimensions Dimension of roller cae ounin dimensions load rain Roller cae 2 n D R Z p e h CR CR CR CR CR CR CR CR CR CR CR CR CR CR CR CR CR CR CR CR CR oes 1 The value shows he mass per meer of a way. 2 The value shows he mass of a roller cae wih en cylindrical rollers. The value shows he load of a cylindrical roller. C U Basic saic load rain C 0U llowable load U 43 1=0.102kf=0.2248lbs. 44

22 Crossed Roller ay Sandard ype CR Size n e p R Z umber of rollers D h Idenificaion number CR * ay 1 k/m ass (Ref.) ominal dimensions mm Basic dynamic Boundary dimensions Dimension of roller cae ounin dimensions load rain Roller cae 2 n D R Z p e h CR * CR * CR * CR * CR * CR * CR * CR * CR * CR * CR * CR * CR * CR * CR * CR * CR * CR * CR * oes 1 The value shows he mass per meer of a way. 2 The value shows he mass of a roller cae wih en cylindrical rollers. The value shows he load of a cylindrical roller. Remark: The idenificaion numbers wih * are our semi-sandard iems. C U Basic saic load rain C 0U llowable load U 45 1=0.102kf=0.2248lbs. 46

23 Crossed Roller ay Sandard ype CR Size n e p R Z umber of rollers D h Idenificaion number CR * ay 1 k/m ass (Ref.) ominal dimensions mm Basic dynamic Boundary dimensions Dimension of roller cae ounin dimensions load rain Roller cae 2 n D R Z p e h CR * CR * CR * CR * CR * CR * CR * CR * oes 1 The value shows he mass per meer of a way. 2 The value shows he mass of a roller cae wih en cylindrical rollers. The value shows he load of a cylindrical roller. Remark: The idenificaion numbers wih * are our semi-sandard iems. C U Basic saic load rain C 0U llowable load U 47 1=0.102kf=0.2248lbs. 48

24 Crossed Roller ay odule ype Size CR n 1 D Dowel pin hole h i i e p R Z umber of rollers D h Idenificaion number CR 1-20 ay 1 k/m ass (Ref.) ominal dimensions and olerances mm Basic dynamic Boundary dimensions Dimension of roller cae ounin dimensions load rain Roller cae 2 n i D R Z p e h D Dim. D olerance CR CR CR CR CR CR CR CR CR CR CR CR CR CR CR CR CR oes 1 The value shows he oal mass per meer of a se of hree ways. 2 The value shows he mass of a roller cae wih en cylindrical rollers. The value shows he load of a cylindrical roller C U Basic saic load rain C 0U llowable load U =0.102kf=0.2248lbs. 50

25 Crossed Roller ay odule ype Size CR n 1 D Dowel pin hole h i i e p R Z umber of rollers D h Idenificaion number CR 3-50 ay 1 k/m ass (Ref.) ominal dimensions and olerances mm Basic dynamic Boundary dimensions Dimension of roller cae ounin dimensions load rain Roller cae 2 n i D R Z p e h D Dim. D olerance CR CR CR CR CR CR CR CR CR CR CR CR CR CR CR CR CR CR CR CR CR oes 1 The value shows he oal mass per meer of a se of hree ways. 2 The value shows he mass of a roller cae wih en cylindrical rollers. The value shows he load of a cylindrical roller C U Basic saic load rain C 0U llowable load U =0.102kf=0.2248lbs. 52

26 53 54

27 ni-creep Cae Crossed Roller ay Uni CRUG Idenificaion umber and Specificaion xample of an idenificaion number The specificaion of CRUG and CRU series is indicaed by he idenificaion number. Indicae he idenificaion number, consisin of a model code, widh, and lenh for each specificaion o apply CRUG series CRUG Rack Roller cae Cylindrical rollers Cae CRU series CRU R Cener way nd sopper Sopper Table Preload adjusin screw 1 odel odel code 2 idh Pae 57 Pinion ear Rack 3 enh Dimensions Pae 57 ay for able nd screw Bed Crossed Roller ay Uni CRU Poins ih riidiy and hih accuracy 1 Since CRG or CR wih excellen load balance is incorporaed wih rounded hih riidiy able and bed, elasic deformaion is small for load in every direcion, leadin o hihly accurae and sable linear moion. 3 ide variaion Three ypes of CRU wih differen secional shapes are available wih many size variaions. You can selec an opimal produc for he specificaions of your machine and device. Solves 2 cae creep issue s CRG wih cae creep proof funcion is incorporaed wih CRUG, here is no risk of cae creep and i works reliable in hih-speed and hih-ac operaion, or in verical axis. 4 asy mounin ounin surface is precisely rounded. In addiion, female screws and borin are used for able and bed, respecively o ensure appropriae preload sae. Therefore, hihly reliable linear moion can be achieved jus by fiin hem o he machine and device. 55 1=0.102kf=0.2248lbs. 56