Cross-Roller Ring Series 2015 by THK CO.,LTD

More catalogs by THK CO.,LTD | Cross-Roller Ring Series 2015 | 28 pages | 2015-10-16

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Catalog Cross-Roller Ring Series 2015

10 x 10 roller cross roller ring ra 10 10 installation of cross roller bearing inner outer ring radial runout tolerance h7 fit h7 pitch circle diameters bearing outer diameter bearing inner diameter tightening torque for bolt m4 angular ball bearings angular ball bearing tightening torque for bolt 8 mm bearing inner diameter double angular ball bearing 80 mm bearing inner diameter 30 mm bearing inner diameter m4 to m8 inner diameter 60 mm 12 mm bearing inner diameter shaft diameter 20 mm shaft diameter 50 mm the basic model when and where use the different bearings cross roller cross roller bearings cross roller bearing crossed roller bearing preloading crossed roller bearings thin cross roller bearings thin walled cross roller bearings thk roller bearings inner ring runout tolerance ring roller roller bearing grease cylindrical roller inner rings inner ring roller bearing japan roller bearings 1 roller bearing roller bearings m 8 flanged roller bearing flanged roller bearings flange roller bearing cylindrical roller bearing cylindrical roller bearings preloading cylindrical roller bearings cylindrical roller bearring inner ring bearings roller bearings alignment aligning roller bearing ring bearings roller bearing tolerance

Cross-Roller Ring Series 2015 is listed under these categories

Industrial Supply > Industrial Automation

Featured catalog pages of Cross-Roller Ring Series 2015

● significantly increased rigidity three to four times greater unlike the thin angular ball bearings installed in double rows the cross array of rollers allows a single cross-roller ring unit to receive loads in all directions increasing the rigidity to three to four times greater than the conventional type ×10-4 10 9 g r be ula ang e-r ubl 15 7.938 8 08 3 2 15.876 8 ow 6 4 m moment 13 m moment do gradient angle rad 7 5 m moment arin 8 50 ra φ 50 13 50 rb φ 50 φ 50.8 1 0 model ra5008 9.8 19.6 29.4 39.2 moment m (n・m) model rb5013 cross-roller ring angular ball bearing moment rigidity diagram ● large load capacity 1 compared with the conventional steel sheet retainers the spacer retainer allows a longer effective contact length of each roller thus significantly increasing the load capacity the spacer retainer guides rollers by holding them over the entire length of each roller whereas the conventional type of retainer supports them only at a

cross roller ring outline cross-roller ring product overview static safety factor the basic static load rating c0 refers to the static load with constant direction and magnitude under which the calculated contact stress in the center of the contact area between the roller and the raceway where the maximum load is applied is 4,000 mpa if the deformation exceeds this level it will affect the rotation this value is indicated as c0 in the dimensional table when a load is statically or dynamically applied it is necessary to consider the static safety factor as shown below c0 f s p0 fs c0 p0 :static safety factor see table 3 :basic static load rating n :static equivalent radial load n table 3 static safety factor fs load conditions normal load impact load lower limit of fs 1 to 2 2 to 3 [static equivalent radial load p0 the static equivalent radial load of the cross-roller ring is obtained from the following equation p0 x 0 · f r p0 fr fa m x0 y0 dp 2m y0·fa dp

cross roller ring outline cross-roller ring product overview table 6 rotation accuracy of the inner ring of model rb nominal dimension of the bearing inner diameter d mm above or less 18 30 30 50 50 80 80 120 120 150 150 180 180 250 250 315 315 400 400 500 500 630 630 800 800 1000 1000 1250 unit μm radial runout tolerance of the inner ring grade pe6 grade pe5 grade pe4 grade pe2 grade 0 grade p6 grade p5 grade p4 grade p2 13 8 4 3 2.5 15 10 5 4 2.5 20 10 5 4 2.5 25 13 6 5 2.5 30 18 8 6 2.5 30 18 8 6 5 40 20 10 8 5 50 25 13 10 ― 60 30 15 12 ― 65 35 18 14 ― 70 40 20 16 ― 80 ― ― ― ― 90 ― ― ― ― 100 ― ― ― ― axial runout tolerance of the inner ring grade pe6 grade pe5 grade pe4 grade pe2 grade 0 grade p6 grade p5 grade p4 grade p2 13 8 4 3 2.5 15 10 5 4 2.5 20 10 5 4 2.5 25 13 6 5 2.5 30 18 8 6 2.5 30 18 8 6 5 40 20 10 8 5 50 25 13 10 ― 60 30 15 12 ― 65 35 18 14

accuracy standards for the usp series [example of rotation accuracy of the usp series the rotation accuracy of the usp-grade series achieves the ultra precision grade that surpasses the world’s highest accuracy standards such as jis class 2 iso class 2 din p2 and afbma abec9 radial runout axial runout 2μm 2.5 μ m specification 5 μ m max specification 5 μ m max 40 φ 500 φ 600 rotation accuracy of the inner ring of model rb50040cc0usp axial runout 3μm specification 7 μ m max 40 radial runout 2.5 μ m φ 500 φ 600 specification 7 μ m max rotation accuracy of the outer ring of model re50040cc0usp [accuracy standards for the usp series the usp-grade series of the cross-roller ring models ru rb and re are manufactured with the accuracy and the dimensional tolerance showing in tables 14 and 15 table 14 runout accuracy of the usp-grade series of models rb and re unit μm nominal dimension of the runout accuracy of the runout accuracy of the inner

fit [fit for model ru model ru does not require a fit in principle however if a certain level of positioning accuracy is required h7 and h7 are recommended for the fit [fit for models rb re and ra for the fit for models rb re and ra we recommend using the combinations indicated in table 20 table 20 fit for models rb re and ra radial clearance c0 c1 service conditions normal load inner ring rotational load large impact/moment normal load outer ring rotational load large impact/moment normal load inner ring rotational load large impact/moment normal load outer ring rotational load large impact/moment shaft h5 h5 g5 g5 j5 k5 g6 h5 housing h7 h7 js7 js7 h7 js7 js7 k7 note for the fit for clearance cc0 avoid an interference because it will cause an excessive preload as for the fit when you have selected clearance cc0 for the joints or swiveling unit of a robot the combination of g5 and h7 is recommended [fit for the usp-grade series for the fit for the usp-grade series of models rb and re

[presser flange and presser bolt when determining the thickness of the presser flange f or the clearance of the flange section s refer to the dimensions indicated below as a guide as for the number of presser bolts the greater the number of bolts the more stable the system becomes as a guide however it is advised to select the appropriate number of bolts indicated in table 23 and arrange them equidistantly s f b×0.5 to b×1.2 0 h b −0.1 s 0.5 mm h f b even if the shaft and the housing are composed of a light alloy it is recommended to select a steel-based material for the presser flange when tightening the presser bolts firmly secure them using a torque wrench or the like so that they will not loosen table 24 shows tightening torques for the housing and presser flanges composed of typical steel materials with medium hardness table 23 number of presser bolts and bolt sizes outer diameter of the outer ring d above or less ― 100 100 200 200 500 500 ― no of

pcd2 φ ds model ru model ru…uu model ru…u pcd1 φ dh model ru…ut unit mm relation between the mounting holes outer ring inner ring pcd1 28 45 65 97 112 139 184 240 385 mounting hole 6-m3 through 8-m4 through 8-m5 through 10-φ5.5 through φ9.5 counterbore depth 5.4 10-m5 through 12-φ9 through φ14 counterbore depth 8.6 12-m8 through 12-φ9 through φ14 counterbore depth 8.6 12-m8 through 12-φ11 through φ17.5 counterbore depth 10.8 12-m10 through 16-φ14 through φ20 counterbore depth 13 16-m12 through 24-φ14 through φ20 counterbore depth 13 24-m12 through pcd2 57 83 105 148 187 217 270 350 505 model no mounting hole 6-φ3.4 through φ6.5 counterbore depth 3.3 8-φ4.5 through φ8 counterbore depth 4.4 8-φ5.5 through φ9.5 counterbore depth 5.4 ru 42 ru 66 ru 85 ru 124 (g) 10-φ5.5 through φ9.5 counterbore depth 5.4 ru 124x ru 148 (g) 12-φ9 through φ14 counterbore

model rb model rb…uu unit mm shoulder dimensions major dimensions shaft diameter 170 180 190 200 220 240 250 300 350 400 450 500 600 700 800 900 1000 1250 model no rb 17020 rb 18025 rb 19025 rb 20025 rb 20030 rb 20035 rb 22025 rb 24025 rb 25025 rb 25030 rb 25040 rb 30025 rb 30035 rb 30040 rb 35020 rb 40035 rb 40040 rb 45025 rb 50025 rb 50040 rb 50050 rb 60040 rb 70045 rb 80070 rb 90070 rb 1000110 rb 1250110 roller pitch inner outer circle width diameter diameter diameter d d dp 170 180 190 220 240 240 260 280 295 280 300 310 330 355 360 395 405 400 480 510 500 550 600 625 700 815 950 1050 1250 1500 191 210 211.9 230 240 247.7 250.1 269 277.5 287.5 300.7 328 345 351.6 373.4 440.3 453.4 474 524.2 548.8 561.6 650 753.5 868.1 969 1114 1365.8 200 220 240 250 300 350 400 450 500 600 700 800 900 1000 1250 b b1 20 25 25 25 30 35 25 25 25 30 40 25 35 40 20 35 40 25 25 40 50 40 45 70 70 110 110 greasing hole a 3.5 3.5 3.5 3.5 4.5 5 3.5 3.5 3.5 4.5 6 3.5 5 6 3.5 5 6 3.5 3.5 6 6 6 6 6 6 6 6

re type model re separable inner ring type φd 4-greasing hole b1 r b r φd model re φ ds b a φ dh model re…uu detail view of the greasing hole unit mm shoulder dimensions major dimensions shaft diameter model no roller pitch inner outer circle width diameter diameter diameter d 400 450 500 600 re 40035 re 40040 re 45025 re 50025 re 50040 re 50050 re 60040 400 450 500 600 d dp 480 510 500 550 600 625 700 440.3 453.4 476.6 526.6 548.8 561.6 650 note model number of a part with seals attached is re…uu b b1 35 40 25 25 40 50 40 greasing hole a 5 6 3.5 3.5 6 6 6 b 3 3.5 1.6 1.6 3 3.5 3 if a certain level of accuracy is required use this model for outer ring rotation for the model number coding see p.16 23 rmin 2.5 2.5 1 1 2.5 2.5 3 ds 422 428 464 514 526 536 627 dh 459 479 484 534 572 587 673 basic load rating mass radial c c0 kn 156 241 61.7 65.5 239 267 264 kn 370 531 182 201 607 653 721 kg 14.5 23.5 6.6 7.3 26 41.7

ra type model ra separable outer ring type 4-greasing hole φd rbrb1 φd model ra φ ds b model ra…uu a φ dh detail view of the greasing hole unit mm shoulder dimensions major dimensions shaft diameter 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 model no ra 5008 ra 6008 ra 7008 ra 8008 ra 9008 ra 10008 ra 11008 ra 12008 ra 13008 ra 14008 ra 15008 ra 16013 ra 17013 ra 18013 ra 19013 ra 20013 roller pitch inner outer circle width diameter diameter diameter d d dp 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 66 76 86 96 106 116 126 136 146 156 166 186 196 206 216 226 57 67 77 87 97 107 117 127 137 147 157 172 182 192 202 212 note model number of a part with seals attached is ra…uu b b1 8 8 8 8 8 8 8 8 8 8 8 13 13 13 13 13 greasing hole a 2 2 2 2 2 2 2 2 2 2 2 2.5 2.5 2.5 2.5 2.5 if a certain level of accuracy is required use this model for inner ring rotation for the model number coding see p.16 25 b 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8

cross-roller ring series precautions on use  handling      the separable inner or outer ring is fastened in place using special rivets bolts or nuts when delivered when installing it to the system do not disassemble it also erroneously installing the spacer retainer will significantly affect the rotational performance of the system do not disassemble the bearing the matching mark of the inner or outer ring may be slightly misaligned when delivered in that case loosen the bolts that secure the inner or outer ring and correct the alignment using a plastic hammer or the like before installing it to the housing let the securing rivets follow the housing when installing or removing the cross-roller ring do not apply force to the securing rivets or the bolts when mounting the presser flange take into account the dimensional tolerances of the parts so that the flange firmly holds the inner and outer ring from the side dropping or hitting the cross-roller ring may damage it giving an