
CRK cross roller bearings have a compact integral design with a flange on both the inner and outer ring.
CRK cross roller bearings have a compact integral design with a flange on both the inner and outer ring. The rollers are arranged crosswise at an angle of 90°, the total volume of the product is small and thin. Both the inner and outer rings have mounting holes provided for mounting screws, eliminating the need for additional flange bases during installation and ensuring simple and convenient installation.
Thanks to the cross arrangement of the rollers, the bearings are able to simultaneously absorb radial, axial loads and overturning moments. They have high torsional rigidity, high turning accuracy, adjustable working clearance and significantly exceed the rigidity of conventional slewing bearings.
The bearings are suitable for use in precision CNC rotary tables, automated rotary fixtures, measuring instrument rotary platforms, industrial robot joints, indexing mechanisms of small precision grinding machines and other similar applications. They are adapted for precision turning applications, heavy rotational loads in confined spaces and combine high precision, high rigidity and compact installation requirements.
| Standard size | Main Dimensions (mm) | Shaft and housing shoulder dimensions (mm) | Basic dynamic load rating | Quality | |||||
| Inner diameter d | Outer diameter D | Width B/B₁ | Chamfer radius r_min | ds | Dh | Cr, kN | C₀r, kN | kg | |
| CRBH 208 | 20 | 36 | 8 | 0.3 | 24 | 31 | 2.9 | 2.4 | 0.04 |
| CRBH 258 | 25 | 41 | 8 | 0.3 | 29 | 36 | 3.1 | 2.8 | 0.05 |
| CRBH 3010 | 30 | 55 | 10 | 0.3 | 36.5 | 48.5 | 7.6 | 8.4 | 0.12 |
| CRBH 3510 | 35 | 60 | 10 | 0.3 | 41.5 | 53.5 | 7.9 | 9.1 | 0.13 |
| CRBH 4010 | 40 | 65 | 10 | 0.3 | 46.5 | 58.5 | 8.6 | 10.6 | 0.15 |
| CRBH 4510 | 45 | 70 | 10 | 0.3 | 51.8 | 63.5 | 8.9 | 11.3 | 0.16 |
| CRBH 5013 | 50 | 80 | 13 | 0.6 | 56 | 74 | 17.3 | 20.9 | 0.29 |
| CRBH 6013 | 60 | 90 | 13 | 0.6 | 66 | 84 | 18.8 | 24.3 | 0.33 |
| CRBH 7013 | 70 | 100 | 13 | 0.6 | 76 | 94 | 20.1 | 27.7 | 0.38 |
| CRBH 8016 | 80 | 120 | 16 | 0.6 | 88 | 112 | 32.1 | 43.4 | 0.74 |
| CRBH 9016 | 90 | 130 | 16 | 0.6 | 98 | 122 | 33.1 | 46.8 | 0.81 |
| CRBH 10020 | 100 | 150 | 20 | 0.6 | 110 | 140 | 50.9 | 72.2 | 1.45 |
| CRBH 11020 | 110 | 160 | 20 | 0.6 | 120 | 150 | 52.4 | 77.4 | 1.56 |
| CRBH 12025 | 120 | 180 | 25 | 1 | 132 | 168 | 73.4 | 108 | 2.62 |
| CRBH 13025 | 130 | 190 | 25 | 1 | 142 | 178 | 75.9 | 115 | 2.82 |
| CRBH 14025 | 140 | 200 | 25 | 1 | 152 | 188 | 81.9 | 130 | 2.96 |
| CRBH 15025 | 150 | 210 | 25 | 1 | 162 | 198 | 84.3 | 138 | 3.16 |
| CRBH 20025 | 200 | 260 | 25 | 1 | 212 | 248 | 92.3 | 169 | 4 |
| CRBH 25025 | 250 | 310 | 25 | 1.5 | 262 | 298 | 102 | 207 | 4.97 |