CRBTF305 Cross roller bearings
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📐 Structure Drawing
CRBTF305 Cross roller bearings
Metric Dimensions (mm)
| Bore d | 30 | mm | Bearing inner bore |
| Outer Dia. D | 63 | mm | Bearing outer diameter |
| Width B | 5 | mm | Bearing width |
Structural Dimensions (mm)
| Chamfer | 0.15 | r/min | Chamfer dimension |
| Roller Pitch Dia. | 46.5 | mm | Roller pitch circle diameter |
| Shaft Shoulder ds | 41.5 | mm | Shaft shoulder diameter ds |
| Shaft Shoulder Dh | 48 | mm | Shaft shoulder diameter Dh |
Radial Load (KN)
| Dynamic Load Cr | 2.1 | KN | Basic dynamic radial load rating |
| Static Load C0r | 2.7 | KN | Basic static radial load rating |
Other Parameters
| Weight | 0.08 | kg | Bearing weight |
CRBTF305 mounting‑hole‑style ultra‑thin crossed roller bearing realizes high rigidity performance within slim cross‑section. Built‑in mounting holes allow direct bolt fastening without auxiliary flanges. It undertakes radial, axial and overturning‑moment loads at the same time with stable rotation performance. Commonly applied for small‑medium robot joints, optical inspection rotary units, medical automation equipment and precision positioning rotary tables.
CRBTF series crossed roller bearings are ultra-slim, lightweight bearings with a width of just 5mm, featuring mounting holes on both the inner and outer rings. The cylindrical rollers are arranged alternately at 90°, enabling a single bearing to support radial, axial, and tilting moment loads simultaneously. Available in open configurations only, with inner diameters ranging from 10mm to 40mm. These bearings deliver exceptional rigidity (3-4 times that of ball bearings), high rotational accuracy, and significant weight savings, making them ideal for industrial robot joints, collaborative robots, medical equipment, and compact automation applications.
