BK 4520Drawn cup needle roller bearing with a closed end

SKU: BK 4520Drawn cup needle roller bearing with a closed end

Drawn cup needle roller bearings are typically used in applications where the housing bore cannot be used as a raceway for a needle roller and cage assembly, but where a very compact and economical bearing arrangement is required. Owing to the large number of rollers, the bearings have a high load carrying capacity and stiffness. The closed end makes them suitable for bearing arrangements where they are situated at the end of a shaft.

ID:187906

Dimensions - BK 4520

Dimensions

Fw
45 mm
Diameter under rollers
D
52 mm
Outside diameter
C
20 mm
Width
C1
min. 17.3 mm
Depth of the drawn cup BK
r
min. 0.8 mm
Chamfer dimension drawn cup (outer ring)

Calculation data

Basic dynamic load rating C
26 kN
Basic static load rating C0
60 kN
Fatigue load limit Pu
7.2 kN
Reference speed
5 600 r/min
Limiting speed
6 300 r/min

Mass

Mass bearing
0.072 kg

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