The CRBH Ultra Thin Precision Bearing is an ultra-thin version of the RU type, featuring high rigidity and high precision. This model lacks mounting holes on the inner and outer rings, requiring flanges and support seats for installation. The bearing consists of an outer ring, an inner ring, and rolling plastic protective blocks. The outer ring features a grid pattern and is secured by three tightening rings, suitable for applications where the inner ring rotates.
Bearing Advantages
1. High Rigidity and High Precision: Orthogonally arranged cylindrical rollers between the inner and outer rings enhance rigidity and running accuracy.
2. Separator Design: Separators are installed between the rollers to ensure smooth rotation.
3. Easy Installation: Mounting holes on the inner and outer rings facilitate quick installation into equipment.
4. Open and Sealed Type Options: Sealed bearings are equipped with special synthetic rubber gaskets for added protection.
Selling Points
Thin and High Precision: Precision up to P2 and P4, suitable for high-precision rotary applications.
Thin Cross-Section Design: Significantly improved rigidity compared to traditional bearings.
Applications
CRBH type bearings are suitable for applications requiring small cross-sectional dimensions and high-precision rotation, such as precision rotary tables, robotic arm rotary joints, medical devices, and measuring instruments.
Advantages Comparison
Compared to ball bearings, CRBH type bearings significantly improve rigidity through the line contact structure of cylindrical rollers. Compared to double-row angular contact ball bearings, its smaller cross-section design increases rigidity by 3 to 4 times, meeting higher performance requirements.
| Bearing Type | Dimension | Shoulder Size | Basic Load rating(rad | Weight | |||||
| Inner Diameter | Outside Diameter | High | Chamfer | Cr | Cor | ||||
| d | D | B | Rmin | da | Da | KN | KN | kg | |
| CRBH 208 A | 20 | 36 | 8 | 0.3 | 24 | 31 | 2.91 | 2.43 | 0.04 |
| CRBH 258 A | 25 | 41 | 8 | 0.3 | 29 | 36 | 3.12 | 2.81 | 0.05 |
| CRBH 3010 A | 30 | 55 | 10 | 0.3 | 36.5 | 48.5 | 7.6 | 8.37 | 0.12 |
| CRBH 3510 A | 35 | 60 | 10 | 0.3 | 41.5 | 53.5 | 7.9 | 9.13 | 0.13 |
| CRBH 4010 A | 40 | 65 | 10 | 0.3 | 46.5 | 58.5 | 8.61 | 10.6 | 0.15 |
| CRBH 4510 A | 45 | 70 | 10 | 0.3 | 51.8 | 63.5 | 8.86 | 11.3 | 0.16 |
| CRBH 5013A | 50 | 80 | 13 | 0.6 | 56 | 74 | 17.3 | 20.9 | 0.29 |
| CRBH 6013A | 60 | 90 | 13 | 0.6 | 66 | 84 | 18.8 | 24.3 | 0.33 |
| CRBH7013A | 70 | 100 | 13 | 0.6 | 76 | 94 | 20.1 | 27.7 | 0.38 |
| CRBH 8016A | 80 | 120 | 16 | 0.6 | 88 | 112 | 32.1 | 43.4 | 0.74 |
| CRBH 9016A | 90 | 130 | 16 | 0.6 | 98 | 122 | 33.1 | 46.8 | 0.81 |
| CRBH 10020 A | 100 | 150 | 20 | 0.6 | 110 | 140 | 50.9 | 72.2 | 1.45 |
| CRBH11020 A | 110 | 160 | 20 | 0.6 | 120 | 150 | 52.4 | 77.4 | 1.56 |
| CRBH 12025 A | 120 | 180 | 25 | 1 | 132 | 168 | 73.4 | 108 | 2.62 |
| CRBH 13025 A | 130 | 190 | 25 | 1 | 142 | 178 | 75.9 | 115 | 2.82 |
| CRBH 14025 A | 140 | 200 | 25 | 1 | 152 | 188 | 81.9 | 130 | 2.96 |
| CRBH 15025 A | 150 | 210 | 25 | 1 | 162 | 198 | 84.3 | 138 | 3.16 |
| CRBH 20025 A | 200 | 260 | 25 | 1 | 212 | 248 | 92.3 | 169 | 4 |
| CRBH 22025 A | 220 | 280 | 25 | 1.5 | 254.9 | 283.1 | 92.3 | 171 | 4.1 |
| CRBH 24025 A | 240 | 300 | 25 | 2 | 263.4 | 291.6 | 68.3 | 145 | 4.5 |
| CRBH 25025 A | 250 | 310 | 25 | 1.5 | 262 | 298 | 102 | 207 | 4.97 |
| CRBH 25030 A | 250 | 330 | 30 | 2.5 | 270.5 | 304.5 | 126 | 244 | 8.1 |
| CRBH 25040 A | 250 | 355 | 40 | 2.5 | 278.1 | 323.3 | 195 | 348 | 14.8 |
| CRBH 30025 A | 300 | 360 | 25 | 1.5 | 313.9 | 342.1 | 75.5 | 178 | 5.9 |
| CRBH 30035 A | 300 | 395 | 35 | 2.5 | 323.8 | 366.2 | 183 | 367 | 13.4 |
| CRBH 30040 A | 300 | 405 | 40 | 2.5 | 330.4 | 372.8 | 212 | 409 | 17.2 |
| CRBH 35020 A | 350 | 400 | 20 | 1 | 362.1 | 384.7 | 54.1 | 143 | 3.9 |
| CRBH 40035 A | 400 | 480 | 35 | 2.5 | 422 | 456 | 156 | 370 | 14.5 |
| CRBH 40040 A | 400 | 510 | 40 | 2.5 | 429.8 | 472 | 241 | 531 | 23.5 |
| CRBH 45025 A | 450 | 500 | 25 | 1 | 460.7 | 483.3 | 61.7 | 182 | 6.6 |
| CRBH 50025 A | 500 | 550 | 25 | 1 | 512.9 | 535.5 | 65.5 | 201 | 7.3 |
| CRBH 50040 A | 500 | 600 | 40 | 2.5 | 527.6 | 570 | 239 | 607 | 26 |
| CRBH 50050 A | 500 | 625 | 50 | 2.5 | 533.3 | 589.9 | 267 | 653 | 41.7 |
| CRBH 60040 A | 600 | 700 | 40 | 3 | 625.8 | 668.2 | 264 | 721 | 29 |
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