RW High-Performance Crossed Roller Bearings (Integral Inner and Outer Rings, with Mounting Holes)
The RW type crossed roller bearing features an integrated inner and outer ring construction, achieving high component rigidity. Mounting bolt holes are machined on both the inner and outer rings; their dimensions and quantity are optimized to effectively reduce rolling surface deformation during installation, thus ensuring stable rotational performance. Furthermore, by improving machining precision, this product meets high rotational accuracy requirements.
Bearing Features:
·Miniaturization and High Rigidity: Small-diameter rollers arranged in a double-row configuration at 45° intervals achieve miniaturization and high rigidity.
·High Rotational Accuracy: The integrated inner and outer ring structure enables high-precision rotational motion.
·Reduced Installation Time: Mounting holes on both the inner and outer rings facilitate direct fixing, significantly reducing installation time for shafts and support housings.

| Bearing Type | Main dimensions | Relation between the mounting holes | Shoulder dimensions |
Basic Load rating (radial) |
Weight | ||||||||
| d | D | B | B1 | dp | Inner ring mounting holes |
Dp | Outer ning mounting holes |
ds | Dh | Cr | Cor | ||
| mm | mm | mm | KN | KN | kg | ||||||||
| Rw145 | 100 | 185 | 20 | 20 | 115 | 12-Φ4.6 through hole, Φ8.5countersink depth15 | 170 | 12-φ4.6 through hole, Φ8.5countersink depth15 | 135 | 150 | 24.6 | 59.3 | 2.70 |
| RW164 | 120 | 210 | 30 | 30 | 138 | 12-φ6 through hole,φ10countersink depth22.5 | 182 | 12-φ6 through hole,φ10countersink depth22.5 ° | 157 | 173 | 48.6 | 112 | 4.90 |
| RW195 | 150 | 240 | 30 | 30 | 168 | 16-φ6 through hole,φ10countersink depth22.5 | 222 | 16-φ6 through hole,φ10countersink depth22.5 | 187 | 203 | 54.1 | 136 | 5.70 |
| RW228 | 160 | 295 | 35 | 35 | 184 | 24-φ7 through hole, Φ11countersink depth24.5 | 270 | 24-φ7 through hole, Φ11countersink depth24.5 | 220 | 240 | 59.3 | 161 | 12.00 |
| RW230 | 180 | 280 | 40 | 40 | 200 | 20-φ6 through hole, Φ10countersink depth30 | 260 | 20-φ6 through hole,φ10countersink depth30 | 217 | 245 | 87 | 215 | 9.90 |
| RW250 | 200 | 300 | 40 | 40 | 220 | 20-φ6 through hole,φ10countersink depth30 | 280 | 20-Φ6 through hole, Φ10countersink depth30 | 237 | 265 | 89.7 | 231 | 11.00 |
| RW297 | 210 | 380 | 40 | 40 | 240 | 24-φ9.3 through hole,①14.5countersink depth28 | 350 | 24-φ9.3 through hole,φ14.5countersink depth28 | 285 | 315 | 101 | 288 | 22.00 |
| RW323 | 260 | 385 | 50 | 50 | 282 | 24-φ7 through hole, Φ12countersink depth38 | 363 | 24-Φ7 through hole, Φ12countersink depth38 | 302 | 343 | 168 | 422 | 24.00 |
| RW388 | 325 | 450 | 50 | 50 | 347 | 30-φ9.3 through hole,φ14.5countersink depth9" | 428 | 30-φ9.3 through hole,①14.5countersink depth9 | 367 | 408 | 199 | 558 | 29.00 |
| RW445 | 350 | 540 | 50 | 50 | 384 | 32-φ9.3 through hole,φ14.5countersink depth35 | 505 | 32-φ9.3 through hole,φ14.5countersink depth35° | 425 | 465 | 216 | 652 | 47.00 |
| RW463 | 395 | 525 | 50 | 50 | 418 | 36-φ10 through hole,φ15countersink depth9 | 502 | 36-φ10 through hole,①15countersink depth9 | 440 | 480 | 208 | 634 | 31.00 |
| RW530 | 460 | 600 | 50 | 50 | 486 | 40-Φ10 through hole, Φ15countersink depth9 | 574 | 40-φ10 through hole,φ15countersink depth9 | 510 | 550 | 233 | 771 | 40.00 |
| RW665 | 580 | 750 | 60 | 60 | 610 | 32-φ12 through hole,φ18countersink depth11 | 720 | 32-φ12 through hole,φ18countersink depth11 | 640 | 690 | 314 | 902 | 92.00 |
| RW760 | 650 | 870 | 60 | 60 | 690 | 32-φ14 through hole,φ20countersink depth13 | 830 | 32-φ14 through hole,φ20countersink depth13 | 735 | 785 | 336 | 1030 | 138.00 |
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