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NTN drawn-cup needle roller bearing · live catalog page 4

BK4520

Exact NTN Bearing Finder record with complete dimensions and load ratings.

Fw45 mmOutside diameter52 mmWidth20 mmDynamic rating27.6 kNNTN item page ↗

Published bearing data

Dimensions and load ratings

NTN Bearing Finder
Item number
BK4520
Roller-envelope diameter Fw
45 mm / 1.7717 in
Outer diameter D
52 mm / 2.0472 in
Width C
20 mm / 0.7874 in
C3
2.7 mm
Static load rating
59 kN
Dynamic load rating
27.6 kN
Published row text
BK4520 | N/A 1.7717 in 45.000 mm | N/A 2.0472 in 52.000 mm | N/A 0.7874 in 20.000 mm | N/A 0.1063 in 2.700 mm | N/A 13300 lbf 59000 N 59.00 kN | N/A 6200 lbf 27600 N 27.60 kN

Verification boundary

What still needs to match

Do not infer interchange
ConstructionConfirm open/closed end, cage or full-complement design, oil-hole features, and exact suffix.
Shaft and housingVerify shaft hardness/finish, housing fit, tolerances, shoulders, and installation tooling.
DutyCheck load direction, lubrication, speed, temperature, contamination, and expected life.
Current dataConfirm the exact item in NTN Bearing Finder before ordering.

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