Industrial replacement referenceSource-backed records · No compatibility guesswork

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

6309ZNC3

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

Bore d45 mmOutside diameter D100 mmWidth B25 mmDynamic rating58,500 NNTN item page ↗

Published bearing data

Dimensions and load ratings

NTN Bearing Finder
Item number
6309ZNC3
Bore d
45 mm / 1.7717 in
Outside diameter D
100 mm / 3.937 in
Width B
25 mm / 0.9843 in
Corner radius r
1.5 mm / 0.0591 in
Static load rating
32,000 N / 7,200 lbf
Dynamic load rating
58,500 N / 13,150 lbf
Published row text
6309ZNC3 | N/A 1.7717 in 45.000 mm | N/A 3.9370 in 100.000 mm | N/A 0.9843 in 25.000 mm | N/A 0.0591 in 1.500 mm | N/A 7200 lbf 32000 N 32.00 kN | N/A 13150 lbf 58500 N 58.50 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.

Related NTN bearings

Same bore dimension

8