Stoke Rotay Bushin Stoke Rotay Bushin Miniatue Stoke Rotay Bushin Stoke Rotay Cae 9 9
Stoke Rotay Bushin S Identification umbe and Specification Example of an identification numbe he specification of S seies is indicated by the identification numbe. Indicate the identification numbe, consistin of a model, dimensions and a pat fo each specification to apply. S 0 UU B Pae 9 Inscibed cicle diamete Extenal cylinde Outside diamete of extenal cylinde Extenal cylinde lenth Dimensions Pae 9 Retaine Ball Seal stuctue Pat Pae 9 Seal End plate Identification umbe and Specification Stoke Rotay Bushin (S seies) Odinay type Heavy load type S S B Fo applicable models and sizes, see able. Inscibed cicle diamete Indicate the inscibed cicle diamete in. Points Outside diamete of extenal cylinde Indicate the outside diamete of extenal cylinde in. Rotational and linea motions With the combination of an extenal cylinde with cylindical aceway and balls incopoated in the etaine, otay and linea motion in the axial diection is possible simultaneously with otational motion. Small inetia he etaine has a hih iidity and liht weiht so that it has small motion inetia suitable fo ollin motion and ecipocal motion in the hih-speed opeation. Extenal cylinde lenth Seal stuctue Open type With seal o symbol UU Indicate the extenal cylinde lenth in. he models with seal type incopoate seals with supeio dust potection pefomance fo peventin intusion of foein substances. Small ollin fictional esistance By buildin a ball with hih accuacy into the pecisely polished extenal cylinde, a small ollin fictional esistance and extemely smooth ollin motion toethe with ecipocal motion have been achieved. Wide vaiation Odinay type and heavy load type with diffeent load atin ae povided, and each ae available with and without seals. You can select an optimal linea bushin fo the specifications of you machine and device. 9 =0.kf=0.lbs. =0.097inch 9
Identification umbe and Specification able s and sizes of S seies Shape Odinay type Seal stuctue Size 0 0 0 0 70 0 90 0 Open type S Lubication Gease is not pe-packed in the S seies, so please pefom adequate lubication as needed. Both of oil lubication and ease lubication ae available in the S seies. Fo ease lubication, use of hih-quality lithium-soap base ease is ecoended. Oil is fed fom the oil hole on the extenal cylinde. Heavy load type Accuacy Since outside diamete of extenal cylinde is defomed by stop in tension, calculate the measuement point fom the equation () and use the aveae diamete value at the point. W = L / whee, W: Distance fom the end to measuement point P, (see Fi. ) L : Extenal cylinde lenth, Stop in W P L Fi. able oleance of inscibed cicle diamete and outside diamete of extenal cylinde unit: m ominal dimensions of inscibed cicle diamete o outside diamete of extenal cylinde D With seal S UU Open type S B With seal S UUB oleance of inscibed cicle diamete oleance of outside diamete of extenal cylinde D m Ove Incl. Hih Low Hih Low 0 7 0 0 0 9 0 0 0 0 0 9 0 0 0 0 0 0 ote D m is an aithmetic mean value of the maximum diamete and minimum diamete obtained by two-point measuement of the outside diamete of extenal cylinde. able oleance of extenal cylinde lenth ominal dimensions of inscibed cicle diamete Allowance of Velocity he S seies is capable of otation and otay and linea motion. Howeve, allowance of velocity fo these motions pefomed at the same time is obtained fom the equation (). ypical values ae indicated in able. D D pw n S n whee, D : Allowance of velocity (see able ) n : Rotational speed, pm n : umbe of stokes pe minute, cpm S : Stoke lenth, D pw : Pitch cicle diamete of balls, (D pw. ) : Inscibed cicle diamete, Howeve, applicable when n 000, S n 0000. able Allowance of velocity Lubication conditions D Oil lubication 00 000 Gease lubication 00 000 unit: m Dim. L toleance of extenal cylinde lenth Ove Incl. Hih Low 0 0 0 0 00 0 0 0 00 Pecaution fo Use Fittin Recoended fit fo the S seies is indicated in able. As the S seies pefoms otation and otay and linea motion at the same time, the adial intenal cleaance must be smalle when shock load o load accompanied by vibation is applied. Especially when vetical axis application o hih accuacy motion is equied, it is ecoended to set the adial intenal cleaance at zeo o unde a slihtlypeloaded condition. Excessive peload will shoten the life, so be caeful not to set lowe limit value of adial intenal cleaance below the value stated in able. able Recoended fit Opeational conditions oleance class Housin hole omal opeational conditions k, m H, H7 Fo vetical axis o hih accuacy n, p J, J7 able Lowe limit of adial intenal cleaance ominal dimensions of inscibed cicle diamete Ove Incl. unit: m Lowe limit of adial intenal cleaance 0 0 0 0 0 0 0 Raceway Since S seies opeates with a shaft as a aceway suface, the shaft should be heat-teated and ound. Recoended values fo suface hadness and ouhness of the shaft ae shown in able 7 and the ecoended value fo the minimum effective hadenin depth is shown in able. able 7 Suface hadness and ouhness of aceway Item Recoended value Remak Suface hadness Suface ouhness When the suface hadness HRC is low, multiply the load atin by hadness facto. Whee accuacy standad 0. mra o lowe is low, aound 0. mra 0. mry o lowe (. mry) is also allowed. ote Fo hadness facto, efe to Fi. in pae -. able Minimum effective hadenin depth of shaft unit: Ove diamete Incl. Recoended value fo minimum effective hadenin depth 0. 0.0 0 0. Stoke lenth Fo stoke lenth used, 0% of the maximum stoke lenth stated in the dimension table is ecoended. Opeatin tempeatue he maximum opeatin tempeatue is C and tempeatue up to 0 C is allowed fo continuous opeation. When the tempeatue exceeds 0 C, contact. Assembly opeation of extenal cylinde and shaft When insetin a shaft, be caeful not to shock the ball. Afte assemblin, coect the position of the etaine to be in the cente of the extenal cylinde. Afte assemblin the extenal cylinde to the housin, inset the shaft softly. Move the etaine as well as the shaft until they contact one side of the suface and stop. hen push the shaft not to damae balls o aceway to the position a half of the maximum stoke lenth and etun it by the same lenth (a half of the maximum stoke) so that the etaine is positioned eulaly at the cente of the extenal cylinde. Fi. Mountin examples 97 =0.kf=0.lbs. =0.097inch 9
t Stoke Rotay Bushin Open ype Odinay type S Heavy load type S B Shape Size 0 0 0 70 0 90 0 0 0 0 0 70 0 90 0 0 D D t L L L L S S B diamete Odinay type Identification numbe ominal dimensions S S B Maximum Basic dynamic Basic static Maximum Basic dynamic Mass (Ref.) Heavy load type Mass (Ref.) stoke lenth load atin load atin stoke lenth load atin F C C 0 C w D L L t S.9 9. 0. 0. 9. S... 0. 0.. S 9.9 9.. 0. 0. 7 S. S B. 7.. 0. 0. S 90. S 90 B. 9 0.7. 0. 0. 0 9 070 9 S S B.. 0. 0. 00 0 S 7 7 S 7 B 7 7 9.. 0. 0. 0 0 99 990 000 S 99 S B. 0. 0. 90 0 0 00 S 7 7 S 7 B 7. 0. 0 0 0 0 0 S 0 S 0 B 0.. 0. 0 00 S 70 9 S 70 B 70.. 0.7. 9 90 0 0 7 0 0 S 000 S 000 B 0 0 0 0.. 0.7. 0 7 00 9 0 S 0 S 0 B 0.. 0.7. 0 0 7 90 700 0 S 07 7 S 07 B 0 7 0.. 790 970 9 00 900 S 00 0 S 00 B 0 0 0. 00 7 0 9 00 00 0 S 00 0 S 00 B 90 0 0. 0 00 0 00 70 S 7090 00 S 7090 B 0 70 9 0. 9 00 00 0 S 00 00 S 00 B 0 0. 0 0 7 00 00 90 S 900 0 S 900 B 0 90 0. 0 00 7 900 7 000 0 S 000 0 S 000 B 0 0 0. 00 7 00 9 00 Basic static load atin C 0 99 =0.kf=0.lbs. =0.097inch 0
t t Stoke Rotay Bushin With Seal Odinay type S UU Heavy load type S UUB Shape L L L L Size 0 0 70 0 0 90 0 0 0 0 0 0 70 0 90 0 D D S UU S UUB diamete Odinay type Identification numbe ominal dimensions S UU S UUB Maximum Basic dynamic Basic static Maximum Basic dynamic Mass (Ref.) Heavy load type Mass (Ref.) stoke lenth load atin load atin stoke lenth load atin F C C 0 C w D L L t S UU... 0. 0. S 90 UU 0.7 9 0.. 0. 0. 9 S UU 7.. 0. 0. 7 S 7 UU 7 7.. 0. 0. 0 99 S UU 7. 0. 0. 90 0 S 7 UU 7. 0. 0 0 0 S 0 UU S 0 UU B 0 0.. 0. 0 7 00 S 70 UU S 70 UU B 9 70 0.. 0.7. 7 90 0 7 0 7 0 0 S 000 UU 9 S 000 UU B 0 0 0 9.9. 0.7. 9 0 9 7 00 9 0 S 0 UU 77 S 0 UU B 0 0 9.9. 0.7. 9 0 0 9 7 90 700 0 S 07 UU S 07 UU B 7 0 7 0 77.. 790 970 70 9 00 900 S 00 UU 90 S 00 UU B 0 0 0 77. 00 7 0 70 9 00 00 0 S 00 UU 70 S 00 UU B 0 0 77. 0 00 70 0 00 70 S 7090 UU 0 S 7090 UU B 0 70 9 0 77. 9 70 00 00 0 S 00 UU 00 S 00 UU B 0 0 0 77. 0 0 00 00 90 S 900 UU 90 S 900 UU B 70 90 0 77. 0 00 900 7 000 0 S 000 UU 0 S 000 UU B 0 0 0 77. 00 00 9 00 Basic static load atin C 0 =0.kf=0.lbs. =0.097inch
Miniatue Stoke Rotay Bushin SSI Identification umbe and Specification Example of an identification numbe he specification of SSI seies is indicated by the identification numbe. Indicate the identification numbe, consistin of a model, dimensions, lenth, and a selection fo each specification to apply. Assembled set 7 With a shaft SSI - - 0 Without a shaft SS - /M Pat Extenal cylinde OR A /M Ball cae BK A Extenal cylinde SF 0 A /M Retaine Pae Ball Ball cae diamete Boe diamete of extenal cylinde Outside diamete of extenal cylinde Dimensions Pae Points Extenal cylinde lenth Rotational and linea motions With the combination of an extenal cylinde with cylindical aceway and balls incopoated in the etaine, otay and linea motion in the axial diection is possible simultaneously with otational motion. Supe small size With the ulta-small sized balls incopoated in a thin extenal cylinde, small diamete and small sectional heiht ae ealized. Supe pecision Balls of hih accuacy ae incopoated with supe-finished extenal cylinde and shaft to be adjusted to zeo o minimal amount of peload, which ealizes otational motion and otay and linea motion of hih accuacy. Extemely smooth opeation Since each component is pecisely ounded and adjusted to ideal peload condition, extemely smooth and stable opeation with small fictional esistance fo lon tem can be achieved. 7 Ball cae lenth lenth Selection class Selection Lenth Pae Pae otes Indicates inscibed cicle diamete fo assembled set without a shaft o ball cae. Indicates cicumscibed cicle diamete fo ball cae. =0.kf=0.lbs. =0.097inch
Identification umbe and Specification 7 diamete Boe diamete of extenal cylinde Outside diamete of extenal cylinde Extenal cylinde lenth Ball cae lenth lenth Selection class able s of SSI seies Assembled set Miniatue Stoke Rotay Bushin With a shaft SSI Miniatue Stoke Rotay Bushin (SSI seies) M class M class M class M M M Assembled set with a shaft SSI Assembled set without a shaft SS Extenal cylinde OR A Ball cae BK A SF A Indicate the shaft diamete in. Indicates inscibed cicle diamete fo assembled set without a shaft o ball cae. Indicate the boe diamete of extenal cylinde in. Indicates cicumscibed cicle diamete fo ball cae. Indicate the outside diamete of extenal cylinde in. Indicate the extenal cylinde lenth in. Indicate the ball cae lenth in. Indicate the shaft lenth in. Selection and toleances ae shown in able. Fo combination of each pat, assemble pats with the same selection. Extenal cylinde OR A Pat Accuacy able oleance and allowance ominal dimensions of outside diamete of extenal cylinde oleance of outside diamete of extenal cylinde m Ove Incl. Hih Low Radial unout of outside diamete of extenal cylinde m 0 0 0 0 0 9 9 able Selection and toleance Selection oleance of boe diamete of extenal cylinde oleance of inscibed cicle diamete oleance of lenth of extenal cylinde and shaft 0. unit: m oleance of shaft diamete Hih Low Hih Low Hih Low M 0 M M Load Ratin Load atin of the SSI seies epesents the value obtained when load is evenly distibuted without the ball incopoated in the ball cae bein dopped fom the extenal cylinde and shaft end. Pecaution fo Use Fittin he SSI seies is assembled to sliht peload state to obtain hih motion accuacy. Use extenal cylinde and housin hole of the SSI seies with cleaance fit to avoid any effect of pess-fittin on inscibed cicle diamete. In addition, fo combination of an extenal cylinde, a ball cae and a shaft, select an extenal cylinde and a shaft with the same selection to be combined with a ball cae. Opeatin tempeatue he maximum opeatin tempeatue is C and tempeatue up to 0 C is allowed fo continuous opeation. When the tempeatue exceeds 0 C, contact. Mountin ypically, to fix the extenal cylinde and housin hole, the extenal cylinde end is fixed to the axial diection with stop in o adhesive aent is used. he ball cae is mounted thouh the shaft afte the extenal cylinde is fixed to the housin hole. At this point, mountin becomes easie if the ball cae is shifted by one half of assembly insetion amount of the shaft in inset diection of the shaft so that the ball cae is positioned at the eula position afte mountin. Insetion of shaft When insetin a shaft into an extenal cylinde, be caeful not to py open o ive shock to the shaft. Miniatue Stoke Rotay Bushin Without a shaft SS Ball cae BK A SF A Lubication Gease is not pe-packed in the SSI seies, so please pefom adequate lubication as needed. Both of oil lubication and ease lubication ae available in the SSI seies. Fo ease lubication, it is typically applied lihtly to the shaft and aceway of the extenal cylinde. Use of hih-quality lithium-soap base ease is ecoended fo the ease to use. =0.kf=0.lbs. =0.097inch
Miniatue Stoke Rotay Bushin Assembled set with a shaft Assembled set without a shaft Extenal cylinde Ball cae SSI SS OR A BK A SF A Shape Size L E D L b E w L F Extenal cylinde Ball cae diamete Identification numbe of assembled set without a shaft Identification numbe Extenal cylinde Ball cae Basic static load atin Mass (Ref.) ominal dimensions Identification Mass (Ref.) ominal dimensions C 0 Identification Mass (Ref.) ominal dimensions numbe numbe E D L E w L b F L Identification numbe of assembled set with a shaft SS L OR A OR A 0.9.. BK A BK A 0. 0....0 SF A SF 0 A 0. 0.7 0 SSI L SS L OR 7 A OR 7 A OR 7 0 A..9. 7 0 BK A BK A BK A 0.7... 7.7 7.9 SF 0 A SF 0 A.. 0 0 SSI L SS L OR A OR A OR 0 A.7.. 0 BK A BK A BK A 0.9.. 9. 9. 9 SF 0 A SF 0 A.9.9 0 0 SSI L SS L OR 7 A OR 7 A OR 7 0 A.. 9. 7 0 BK 7 A BK 7 A BK 7 A.0..0 7 SF 0 A SF 0 A 7.7. 0 0 SSI L SS L OR 0 A OR A OR 0 A 7.0.. 0 0 BK A BK A BK A... SF 0 A SF 0 A. 7.7 0 0 SSI L SS L OR 0 A OR A..7 0 BK A BK A.. 7 SF 0 A SF 0 A 9.7. 0 0 SSI L OR 0 A 7.0 0 BK A. 9 SF 90 A. 90 SS L OR 0 A OR A.. 0 BK A BK A.. 9 SF 0 A SF 0 A 9.. 0 0 SSI L OR A 7.7 BK A. SF A 7.0 SS L OR A OR 0 A OR A OR 0 A. 7.7.0 0. 0 0 BK A BK A BK 0 A... 0 7 SF 0 A SF 0 A SF A 7.0.. 0 0 SSI L ote Repesents the value when load is evenly distibuted without the ball incopoated in the ball cae bein dopped fom the extenal cylinde end. Remak: L, L b, and L in the identification numbe field of assembled set without a shaft and assembled set with a shaft epesent lenth of the extenal cylinde, lenth of the ball cae, and lenth of the shaft in the dimension table. 7 =0.kf=0.lbs. =0.097inch
Stoke Rotay Cae BG Identification umbe and Specification Example of an identification numbe he specification of BG seies is indicated by the identification numbe. Indicate the identification numbe, consistin of a model and dimensions. BG Pae Inscibed cicle diamete Cicumscibed cicle diamete Retaine Lenth of etaine Dimensions Pae Ball Identification umbe and Specification Stoke Rotay Cae (BG seies) BG Inscibed cicle diamete Indicate the inscibed cicle diamete in. Cicumscibed cicle diamete Indicate the cicumscibed cicle diamete in. Lenth of etaine Indicate the lenth of etaine in. Points Rotational and linea motions Hih-accuacy balls incopoated into the etaine make use of the aceway accuacy to allow hih-accuacy otational motion and otay and linea motion. Lae load atin and hih iidity In the etaine, balls ae incopoated as many as possible. So the load atins ae lae and the iidity is hih with small elastic defomation even unde fluctuatin load o offset load. Allowance of Velocity he BG seies is capable of otation and otay and linea motion. Howeve, allowance of velocity fo these motions pefomed at the same time is obtained fom the equation (). ypical values ae indicated in able. D D pw n S n () able Allowance of velocity Lubication conditions D Oil lubication 00 000 Gease lubication 00 000 Supeio hih speed opeation As the etaines have hih iidity and liht in weiht with low inetia, this seies is suitable fo abupt opeations such as hih-speed otay and linea motion in axial diection. Lon life Each ball held in the etaine is aaned in a spial fomation in ode to pevent the balls fom tacin the same path. Rollin contact fatiue of the shaft and housin aceways is theeby minimized, and stable hih accuacy can be assued fo lon peiods of time. whee, D : Allowance of velocity (see able ) n : Rotational speed, pm n : umbe of stokes pe minute, cpm S : Stoke lenth, D pw : Pitch cicle diamete of balls, (D pw E w ) : Inscibed cicle diamete, E w : Cicumscibed cicle diamete, 9 Howeve, applicable when n 000, S n 0000. =0.kf=0.lbs. =0.097inch
Pecaution fo Use Stoke Rotay Cae Fittin BG seies is eneally used with a sliht adial intenal cleaance fit. Recoended fits ae shown in able. When it is used fo a uide post of the pess die set o hih opeation accuacy is equied, a peload is eneally iven. he toleances of dimensions of the shaft and housin boe in this case ae shown in able. Howeve, since excessive peload shotens the life of Stoke Rotay Cae, it is suested that the lowe limit of adial cleaance is not smalle than the value shown in able. Raceway BG seies is used with a shaft and housin hole as aceway sufaces. Recoended values fo suface hadness and ouhness of matin aceway ae shown in able and the ecoended values fo the minimum effective hadenin depth ae shown in able. When some of the balls held in the etaine escape the housin aceway and opeate in linea motion, it is ecoended that the housin aceway ends should be slihtly chamfeed so that the balls ente o exit smoothly. Shape Size 9 BG E w L able Geneal fit oleance class Housin hole h, h H, H7 able oleances of dimensions fo shaft and housin hole unit: m ominal dimensions Housin hole h ominal K dimensions H L H L 9 0 9 0 9 0 9 9 0 9 9 0 0 9 0 9 able Lowe limit of adial intenal cleaance unit: m ominal dimensions of shaft Lowe limit of adial intenal cleaance 9 7 7 7 able Suface hadness and ouhness of aceway Item Recoended value Remak Suface hadness HRC Suface 0. mra o lowe ouhness 0. mry o lowe When the suface hadness is low, multiply the load atin by hadness facto. Whee accuacy standad is low, aound 0. mra (. mry) is also allowed. ote Fo hadness facto, efe to Fi. in pae -. able Minimum effective hadenin depth of aceway unit: ominal dimensions of shaft and housin hole Ove Incl. Recoended value fo minimum effective hadenin depth 0. 0.0 diamete Identification numbe Mass (Ref.) ominal dimensions E w L Basic dynamic load atin C Basic static load atin 9 BG 9* 9 0 00 BG 0* 0 0 90 90 BG * 0 90 BG 70* 7 70 0 0 BG 07* 9 0 7 0 00 BG 0* 0 70 9 90 ote Basic dynamic load atin and basic static load atin ae values when balls incopoated into the etaine shae the load evenly without escapin the aceway. Remak: he identification numbes with * ae ou semi-standad items. C 0 =0.kf=0.lbs. =0.097inch