NA 4872Single row needle roller bearing with machined rings, with flanges

SKU: NA 4872Single row needle roller bearing with machined rings, with flanges

Single row needle roller bearings incorporate cylindrical rollers that are small in diameter relative to their length. Owing to their large number of rollers, the bearings have a high load carrying capacity. The outer ring includes two integral flanges to guide the bearing axially and an annular groove with one or more lubrication holes to facilitate relubrication.

ID:202376

Dimensions - NA 4872

Dimensions

d
360 mm
Bore diameter
D
440 mm
Outside diameter
B
80 mm
Width
F
390 mm
Raceway diameter inner ring
r1,2
min. 2.1 mm
Chamfer dimension outer ring
s
max. 2 mm
Permissible axial displacement from the normal position of one bearing ring relative to the other

Abutment dimensions - NA 4872

Abutment dimensions

da
min. 371 mm
Smallest permissible abutment diameter shaft, bearings with flanges
Da
max. 429 mm
Abutment diameter housing (with flanges)
ra
max. 2 mm
Fillet radius

Calculation data

Basic dynamic load rating C
627 kN
Basic static load rating C0
2 040 kN
Fatigue load limit Pu
186 kN
Reference speed
950 r/min
Limiting speed
1 100 r/min

Mass

Mass bearing
25.6 kg

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