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Koyo J-4412-OH is an open type, caged drawn cup needle roller bearing with an oil hole. It has a 2.7524" inner diameter, 3.1255" outer diameter, and 0.75" width. This bearing is designed for applications requiring a compact, high-capacity needle roller bearing with lubrication access.
MODEL J-4412-OH
$215.28 Each
Prices are subject to change
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Bore
2.75 in / 69.85 mm
Brand
KOYO
Closed End
No
Harmonized Tariff Code
8482.40.00.00
Inch - Metric
Inch
Manufacturer Item Number
J-4412-OH
Number of Rows of Rollers
Single Row
Other Features
2 Rib Outer Ring / Drawn Cup Bearing / Steel Cage / Oil Hole
Outside Diameter
3.125 Inch / 79.375 Millimeter
Relubricatable
Yes
Retainer
Yes
Rolling Element
Needle Roller Bearing
Self Aligning
No
Separable
No
Thrust Bearing
No
Type
Needle Non Thrust Roller Bearings
UNSPSC
31171512
Width
0.75 Inch / 19.05 Millimeter
- Best used for good radial load capacity and high speeds for thin cross section applications
- A hardened and machined shaft or an "IR" Inner Ring is required for optimal performance
- A press fit into the housing is required
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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