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Koyo Bearing
NA4911
Open Type, Solid Race Needle Roller Bearing, 55 mm Inner Diameter x 80 mm Outer Diameter x 25 mm Width, High Carbon Chrome Steel, Riveted Steel Cage, Round Bore
MODEL NA4911
$150.30 Each
Prices are subject to change
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Returnable: See conditions
Bearing Design
Removable Inner Ring Straight
I.D.
55 mm
Inner Ring O.D.
63 mm
Limiting Speed - Oil
6900 rpm
O.D.
80 mm
Oil Hole
w/Oil Hole
Origin
Needle Radial
Precision Ground
Yes
Self Aligning
No
Width
25 mm
- Best used for high radial load applications
- Made from premium high carbon high chromium Japanese steel
- Available with no inner ring (NK NKS RNAO RNA2200 RNA48 RNA49 series)
- Available with inner ring (NA48 NA49 NA69 NAO NKJ NKJS series)
- Available as a double row with inner ring (NA69 series)
- Available as a double row without inner ring (RNA69 series)
- A steel cage is standard .TN calls out a polymer cage
- Available with two seals (.2RS) in the RNA4900
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