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Koyo JR80X90X30 is a solid race inner ring for needle roller bearings with an 80 mm bore, 90 mm outer diameter, and 30 mm width. This precision-ground inner race provides a hardened raceway for needle roller assemblies in industrial gearboxes, pumps, and machine tools.
MODEL JR80X90X30
$79.35 Each
Prices are subject to change
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Returnable: See conditions
Bearing Design
Removable Inner Ring Straight
I.D.
80 mm
O.D.
90 mm
Oil Hole
w/o Oil Hole
Precision Ground
Yes
Width
30 mm
- Best used with our drawn cup needle roller bearings to provide a hardened and properly toleranced inner race
- Made from premium high carbon high chromium steel
- Available with an oil hole (-OH)
- Available in inch (IR) and metric (JR) sizes
- May also be used as a wear bushing
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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