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Koyo 29428RN FY is a thrust spherical roller bearing with a 140 mm straight bore. It features a factory-greased (FY) design for maintenance-free operation. This single-row bearing accommodates heavy axial loads and moderate radial loads in industrial gearboxes, presses, and marine propulsion systems.
MODEL 29428RN FY
$3,020.26 Each
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Bearing Material
Steel
Bore Diameter
140 mm
Dynamic Load Capacity
1560 kN
Maximum RPM
1250 rpm
Number of Rows
1
O.D.
280 mm
Operating Temperature Range
-54 to 200 deg C
Series
29 Series
Static Load Capacity
4080 kN
Type
Caged Cylindrical Bore Self-Aligning
Width
85 mm
Spherical thrust roller bearings are designed to carry high axial loads. They can also support radial load if magnitude is no more than 55% of the axial load being carried. These bearings are not suitable for high-speed rotation. Having a spherical housing race raceway surface, these bearings are self-aligning, adjusting to axial inclination. They are usually used with oil lubrication.
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- RN in suffix calls out extra capacity
- Machined brass cage (FY) is standard
- Made from premium high carbon, high chromium Japanese steel
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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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