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Koyo K17X21X10H needle roller cage assembly with 17 mm bore, 21 mm outer diameter, and 10 mm width. Features a heat-treated steel cage for durability in high-speed applications. Designed for use in transmissions, pumps, and compact gearboxes where space is limited.
MODEL K17X21X10H
$12.00 Each
Prices are subject to change
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Bearing Design
Cage & Roller Assembly
I.D.
17 mm
O.D.
21 mm
Oil Hole
w/o Oil Hole
Precision Ground
Yes
Self Aligning
No
Width
10 mm
- Best used for applications that require maximum radial load capacity and a thin cross section
- Most sizes use a hardened steel cage (no callout)
- A polymer cage (TN in suffix) is used on our smallest metric sizes (4-8mm bore)
- The housing bore and shaft must be hardened and machined
- Available in inch (WJ) and metric (K) sizes
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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