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Koyo NU317R C3FY cylindrical roller bearing with 85 mm straight bore. NU type design has no flanges on the outer ring, allowing axial expansion of the shaft. Features C3 internal clearance and Koyo factory grease pack (FY). Suitable for gearboxes, electric motors, and pumps where shaft expansion must be accommodated.
MODEL NU317R C3FY
$422.46 Each
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Returnable: See conditions
Bearing Design
Removable Inner Ring Straight
I.D.
85 mm
O.D.
180 mm
Oil Hole
w/o Oil Hole
Origin
Cylindrical Radial
Precision Ground
Yes
Width
41 mm
Cylindrical roller bearings have line contact between the rollers and raceway, therefore radial load capability is high, making this bearing superior in regards to its ability to withstand heavy loads and impact loads. Moreover, mounting and removing is easy due to the inner ring and outer ring being separable.
How do I choose the right type of bearing for my application?
Start with the load and how it’s applied. You need to know if you’re dealing with radial loads, axial loads, or a mix of both. Then look at speed, operating environment, and space constraints. For example, ball bearings are great for high speed and lighter loads, while roller bearings handle heavier loads but usually at lower speeds. If there’s contamination, moisture, or heat involved, you may need sealed bearings or specific materials. In most cases, the right choice comes down to matching load type, speed, and environment to the bearing design.
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