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NTN K55X63X20 is a needle roller cage assembly with a 55 mm bore, 63 mm outside diameter, and 20 mm width. It features a steel cage and is open (unsealed). Constructed from high carbon chrome steel, this assembly is designed for use in applications requiring high load capacity in a compact radial space.
MODEL K55X63X20
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$39.61 Each
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Brand Minimum Order Quantity: 2
Typically Ships in: 1 day
Returnable: See conditions
Bc
0.7874 in
Bc Tolerance
-0.2/-0.55
Cage material
Steel
Cage Material
Steel
Dynamic load rating
8750 lbf
Dynamic Load Rating
8750 lbf
Enclosure
Open
Ew
2.4803 in
Fw
2.1654 in
I.D.
55 mm
Limiting speed - grease
5000 RPM
Limiting Speed - Grease
5000 RPM
Limiting speed - oil
7500 RPM
Limiting Speed - Oil
7500 RPM
Material
High Carbon Chrome Steel
O.D.
63 mm
Precision
ISO Class 0
Static load rating
15700 lbf
Static Load Rating
15700 lbf
Type
Needle and Cage
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 | Red Lion Controls |
| Model | NT24k-SFP8 |
