RB Series Cross Roller Bearing

RB Series (THK Corresponding Model Is RB Series, IKO Corresponding Model Is CRB Series) Is The Basic Type Of Cross Roller Bearing. The Inner And Outer Rings Are Miniaturized To A Minimum. The Outer Rings Are Divided, And The Inner Rings Are Integrated Design, Which Is Suitable For The Parts Requiring High Rotation Accuracy Of The Inner Rings. img10838(001) ZK Bearing Type Dimension Shoulder Height Basic Load Rating （Radial） Weight Inner Ring Outer Ring Roller Pitch Diameter Height Chamfer Cr Cor D D Dpw B B1 Rmin Ds Dh KN KN Kg RB2008 20 36 27 8 0.5 23.5 30.5 3.23 3.1 0.04 RB2508 25 41 32 8 0.5 28.5 35.5 3.63 3.83 0.05 RB 3010 30 55 41.5 10 0.6 37 47 7.35 8.36 0.12 RB 3510 35 60 46.5 10 0.6 41 51.5 7.64 9.12 0.13 RB 4010 40 65 51.5 10 0.6 47.5 57.5 8.33 10.6 0.16 RB 4510 45 70 56.5 10 0.6 51 61.5 8.62 11.3 0.17 RB 5013 50 80 64 13 0.6 57.4 72 16.7 20.9 0.27 RB 6013 60 90 74 13 0.6 68 82 18 24.3 0.3 RB 7013 70 100 84 13 0.6 78 92 19.4 27.7 0.35 RB 8016 80 120 98 16 0.6 91 111 30.1 42.1 0.7 RB 9016 90 130 108 16 1 98 118 31.4 45.3 0.75 RB 10016 100 140 119.3 16 1 109 129 31.7 48.6 0.83 RB 10020 100 150 123 20 1 113 133 33.1 50.9 1.45 RB 11012 110 135 121.8 12 0.6 117 127 12.5 24.1 0.4 RB 11015 110 145 126.5 15 0.6 122 136 23.7 41.5 0.75 RB 11020 110 160 133 20 1 120 143 34 54 1.56 RB 12016 120 150 134.2 16 0.6 127 141 24.2 43.2 0.72 RB 12025 120 180 148.7 25 1.5 133 164 66.9 100 2.62 RB 13015 130 160 144.5 15 0.6 137 152 25 46.7 0.72 RB 13025 130 190 158 25 1.5 143 174 69.5 107 2.82 RB 14016 140 175 160 16 1 147 162 25.9 50.1 1 RB 14025 140 200 172 25 1.5 154 185 74.8 121 2.96 RB 15013 150 180 166 13 0.6 157 172 27 53.5 0.68 RB 15025 150 210 182 25 1.5 164 194 76.8 128 3.16 RB 15030 150 230 192 30 1.5 173 211 100 156 5.3 RB 16025 160 220 192 25 1.5 173 204 81.7 135 3.14 RB 17020 170 220 196.1 20 1.5 184 198 29 62.1 2.21 RB 18025 180 240 210 25 1.5 195 225 84 143 3.44 RB 19025 190 240 219 25 1 202 222 41.7 82.9 2.99 RB 20025 200 260 230 25 2 215 245 84.2 157 4 RB 20030 200 280 240 30 2 221 258 114 200 6.7 RB 20035 200 295 247.7 35 2 225 270 151 252 9.6 RB 22025 220 280 250.1 25 2 235 265 92.3 171 4.1 RB 24025 240 300 272.5 25 2.5 256 281 68.3 145 4.5 RB 25025 250 310 280.9 25 2.5 265 290 69.3 150 5 RB 25030 250 330 287.5 30 2.5 269 306 126 244 8.1 RB 25040 250 355 300.7 40 2.5 275 326 195 348 14.8 RB 30025 300 360 332 25 2.5 315 340 76.3 178 5.9 RB 30035 300 395 345 35 2.5 322 368 183 367 13.4 RB 30040 300 405 351.6 40 2.5 326 377 212 409 17.2 RB 35020 350 400 376.6 20 2.5 363 383 54.1 143 3.9 RB 40035 400 480 440.3 35 2.5 422 459 156 370 14.5 RB 40040 400 510 453.4 40 2.5 428 479 241 531 23.5 RB 45025 450 500 476.6 25 1 464 484 61.7 182 6.6 RB 50025 500 550 526.6 25 1 514 534 65.5 201 7.3 RB 50040 500 600 548.8 40 2.5 526 572 239 607 26 RB 50050 500 625 561.6 50 2.5 536 587 267 653 41.7 RB 60040 600 700 650 40 3 627 673 264 721 29 RB 70045 700 815 753.5 45 3 731 777 281 836 46 RB 80070 800 950 868.1 70 4 836 900 468 1330 105 RB 90070 900 1050 969 70 4 937 1001 494 1490 120 RB 1000110 1000 1250 1114 110 5 1057 1171 1220 3220 360 RB 1250100 1250 1500 1365.8 110 5 1308 1423 1350 3970 440 In Cross Roller Bearings, Cylindrical Rollers Are Arranged Vertically On The Rolling Surface Of A 90 Degree V-Groove Through Spacer Holders, So They Can Bear All Directions Of Load, Such As Radial Load, Axial Load And Moment Load. The Dimensions Of Inner And Outer Rings Are Miniaturized To A Minimum, Especially The Extremely Thin Ones, Which Are Close To The Limit And Have High Rigidity. Therefore, They Are Most Suitable For The Use Of Joint Or Rotating Parts Of Industrial Robots, Rotating Worktables Of Machining Centers, Rotating Parts Of Manipulators, Precision Rotating Worktables, Medical Machines, Metrologists, IC Manufacturing Devices, Etc. Cross Roller Bearings, Because Of The Split Inner Or Outer Rings, Are Fixed Together With The Cross Roller Ring After Loading The Roller And Spacer Retainer To Prevent Separation From Each Other, So It Is Easy To Install Zengkun Cross Roller Ring. Because Of The Cross Arrangement Of Rollers, Only One Set Of Cross Roller Ring Can Bear The Load In All Directions. Compared With The Traditional Model, The Rigidity Is Increased By 3-4 Times. At The Same Time, Because The Inner Or Outer Rings Of Cross Roller Bearings Are Two-Segmented Structure, Bearing Clearance Can Be Adjusted, Even If Preloaded, High-Precision Rotary Motion Can Be Achieved. 1. Excellent Rotational Accuracy The Internal Structure Of Cross Roller Bearings Is Arranged Vertically With 90 Degrees Of Rollers. The Rollers Are Equipped With Spacer Holder Or Isolation Block, Which Can Prevent The Rollers From Grinding Each Other When The Rollers Are Inclined, And Effectively Prevent The Increase Of Rotating Torque. In Addition, There Will Be No Contact Or Lock-Up Phenomenon On One Side Of The Roller; At The Same Time, Because The Inner And Outer Rings Are Segmented Structure, The Gap Can Be Adjusted, Even If Pre-Pressed, High-Precision Rotational Motion Can Be Obtained. 2. Simplification Of Operation And Installation The Outer Or Inner Rings, Which Are Divided Into Two Parts, Are Fixed Together After The Rollers And Retainers Are Loaded, So The Installation Operation Is Very Simple. 3. Bearing Large Axial And Radial Loads Because The Rollers Are Arranged Vertically On The Rolling Surface Of The V-Groove With 90 Degrees Through The Spacer Holder, This Design Enables The Cross Roller Bearings To Withstand Large Radial, Axial And Moment Loads In All Directions. 4. Save Installation Space By A Large Margin The Inner And Outer Ring Dimensions Of Cross Roller Bearings Are Miniaturized To A Minimum, Especially The Ultra-Thin Structure Is A Miniature Size Close To The Limit And Has High Rigidity. Therefore, It Is Most Suitable For Industrial Robots In Joint Or Rotating Parts, Rotating Workbenches Of Machining Centers, Rotating Parts Of Manipulators, Precision Rotating Workbenches, Medical Instruments, Measuring Instruments, IC Manufacturing Devices And So On. General Purpose. 5. High Speed Capability 6. Reducing Shaft Length And Processing Costs, Thermal Expansion Leads To Limited Changes In Geometric Dimensions. 7. Using Nylon Separator, It Has Low Moment Of Inertia, Low Starting Torque And Easy To Control Angular Indexing. 8. Optimizing Pretension Force, High Stiffness And High Precision Of Guiding Roller Operation 9. Carburized Steel Provides Excellent Impact Resistance And Surface Abrasion Resistance 10. Simple But Well Lubricated

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