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NTN K40X45X17 needle roller cage assembly with a 40 mm bore, 45 mm outer diameter, and 17 mm width. Features a steel cage and open design, constructed from high carbon chrome steel. Used in applications requiring compact radial load support with low friction.
MODEL K40X45X17
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$14.67 Each
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Brand Minimum Order Quantity: 5
Typically Ships in: 1 day
Returnable:No
Bc
0.6693 in
Bc Tolerance
-0.2/-0.55
Cage Material
Steel
Cage material
Steel
Dynamic Load Rating
4900 lbf
Dynamic load rating
4900 lbf
Enclosure
Open
Ew
1.7717 in
Fw
1.5748 in
I.D.
40 mm
Limiting Speed - Grease
6500 RPM
Limiting speed - grease
6500 RPM
Limiting Speed - Oil
10000 RPM
Limiting speed - oil
10000 RPM
Material
High carbon chrome steel
O.D.
45 mm
Precision
ISO class 0
Static Load Rating
9350 lbf
Static load rating
9350 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.