NTN single-row radial ball bearing · live catalog page 3
6303ZNC3
Exact live NTN Bearing Finder row with dimensional and load-rating evidence.
Published bearing data
Dimensions and load ratings
- 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
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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