NTN single-row radial ball bearing · live catalog page 4
6921ZN
Exact live NTN Bearing Finder row with dimensional and load-rating evidence.
Published bearing data
Dimensions and load ratings
- Item number
- 6921ZN
- Bore d
- 105 mm / 4.1339 in
- Outside diameter D
- 145 mm / 5.7087 in
- Width B
- 20 mm / 0.7874 in
- Corner radius r
- 1.1 mm / 0.0433 in
- Static load rating
- 42,000 N / 9,450 lbf
- Dynamic load rating
- 47,000 N / 10,560 lbf
- Published row text
- 6921ZN | N/A 4.1339 in 105.000 mm | N/A 5.7087 in 145.000 mm | N/A 0.7874 in 20.000 mm | N/A 0.0433 in 1.100 mm | N/A 9450 lbf 42000 N 42.00 kN | N/A 10560 lbf 47000 N 47.00 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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