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Koyo JR45X50X25 solid race inner ring for needle roller bearings. Features a 45 mm inner diameter, 50 mm outer diameter, and 25 mm width. Precision-ground raceway for use with drawn cup or machined ring needle roller bearings in industrial gearboxes and transmission applications.
MODEL JR45X50X25
$22.88 Each
Prices are subject to change
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Bearing Material
High Carbon Chrome Steel
Bearing Type
Needle Roller Bearings
Fillet Radius
0.6 mm
Finish
Polished Chrome
Inside Diameter
45 mm
Lubricant
Rust Preventative
Material
Steel
O.D.
50 mm
Outer Diameter Type
Straight
Overall Width
25 mm
Precision class
ABEC 1
Series
JR Metric Series
Suitable For Use With
NAXK50, NAXK50Z, NAXR50, NAXR50.Z 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
- 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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