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Koyo NTA-1220 thrust needle roller bearing washer with 31.75 mm bore and 19.05 mm outer diameter. This inch-series washer is used in thrust needle roller bearing assemblies for axial load applications in limited axial space.
MODEL NTA-1220
$3.28 Each
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Bearing Design
Cage & Roller Assembly
Contact I.D.
0.84 in
Contact O.D.
1.14 in
Diameter to Clear Assembly O.D.
1.281 in
Dynamic Load Rating
2450 lbf
I.D.
3/4 in
Limiting Speed - Oil
14000 rpm
O.D.
1 1/4 in
Oil Hole
w/o Oil Hole
Origin
Needle Roller & Cage
Precision Ground
Yes
Self Aligning
No
Shaft Pilot Diameter [MAX]
0.75 in
Shaft Pilot Diameter [MIN]
0.747 in
Static Load Rating [MAX]
8200 lbf
Width
5/64 in
- Best used for high axial loads that require a thin cross section
- Hardened steel cage is standard polymer cage has a .TN suffix
- Available in inch (NTA) and metric (FNT FNTA AXK) sizes
- Best used with the proper thrust washers (inch-TRA TRB etc and metric-AS GS
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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