NACHI NU313C3 Cylindrical Roller Bearings 300 Series NU 65 x 140 x 33mm
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NACHI is a Japanese precision bearing manufacturer, part of the NACHI-Fujikoshi Corporation, supplying deep groove ball bearings, cylindrical roller bearings, spherical roller bearings, angular contact ball bearings, and thrust bearings to engineering, manufacturing, and maintenance operations across Australia.
NACHI NU series cylindrical roller bearings have ribs on the outer ring only, allowing free axial displacement to accommodate thermal expansion in electric motors, pumps, and gearboxes.
Where this product is used
NACHI cylindrical roller bearing nu products are used across electric motors, industrial gearboxes, pumps, conveyors, and heavy engineering equipment.
- Electric motors, pumps, and gearboxes where free axial displacement must be accommodated.
- Float-end bearing positions in industrial machinery experiencing thermal growth.
- Heavy radial load applications where axial freedom prevents preload build-up due to expansion.
Key specifications
| Specification | Detail |
|---|---|
| Bore (d) | 65 mm |
| Outer Diameter (D) | 140 mm |
| Width (B/W) | 33 mm |
| Internal Clearance | C3 |
Selecting the right option
NU series allows free axial displacement — used at the float end of a shaft to accommodate thermal expansion. Do not use NU bearings as the sole axial location in a shaft arrangement. C3 clearance suits most industrial and motor applications.
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