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NTN single-row radial ball bearing · live catalog page 3

6303ZNC3

Exact live NTN Bearing Finder row with dimensional and load-rating evidence.

Bore d17 mmOutside diameter D47 mmWidth B14 mmDynamic rating15,000 NNTN item page ↗

Published bearing data

Dimensions and load ratings

NTN Bearing Finder
Item number
6303ZNC3
Bore d
17 mm / 0.6693 in
Outside diameter D
47 mm / 1.8504 in
Width B
14 mm / 0.5512 in
Corner radius r
1 mm / 0.0394 in
Static load rating
6,550 N / 1,470 lbf
Dynamic load rating
15,000 N / 3,370 lbf
Published row text
6303ZNC3 | N/A 0.6693 in 17.000 mm | N/A 1.8504 in 47.000 mm | N/A 0.5512 in 14.000 mm | N/A 0.0394 in 1.000 mm | N/A 1470 lbf 6550 N 6.55 kN | N/A 3370 lbf 15000 N 15.00 kN

Verification boundary

What still needs to match

Do not infer interchange
Exact suffixConfirm enclosure, seals/shields, internal clearance, precision class, cage, and material.
FitVerify shaft and housing tolerances, shoulders, fillets, and installation method.
DutyCheck speed, lubrication, temperature, contamination, radial/axial loading, and expected life.
Current dataConfirm the exact item in NTN Bearing Finder before ordering.

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Same bore dimension

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