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Koyo JR40X45X20 is a solid race inner ring for needle roller bearings with a 40 mm inner diameter, 45 mm outer diameter, and 20 mm width. This precision-ground inner race provides a hardened raceway for needle roller assemblies in compact radial applications.
MODEL JR40X45X20
$18.98 Each
Prices are subject to change
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Bearing Material
High Carbon Chrome Steel
Bearing Type
Needle Roller Bearings
Fillet Radius
0.3 mm
Finish
Polished Chrome
Inside Diameter
40 mm
Lubricant
Rust Preventative
Material
Steel
O.D.
45 mm
Outer Diameter Type
Straight
Overall Width
20 mm
Precision class
ABEC 1
Series
JR Metric Series
Suitable For Use With
NAXK45, NAXK45Z, NAXR45TN, NAXR45Z.TN Drawn Cup Needle Roller Bearing
- 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
- 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.
| Brand | Nexen |
| Model | 835687 |
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| Model | CMSS 65-012-00-30-10 |