NA 4900 RSSingle row needle roller bearing with machined rings, with flanges and integral sealing

SKU: NA 4900 RSSingle row needle roller bearing with machined rings, with flanges and integral sealing

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. The inner ring contains an additional lubrication hole.

ID:202014

Dimensions - NA 4900 RS

Dimensions

d
10 mm
Bore diameter
D
22 mm
Outside diameter
B
14 mm
Width
C
13 mm
Width outer ring
F
14 mm
Raceway diameter inner ring
r1,2
min. 0.3 mm
Chamfer dimension outer ring
s
max. 0.5 mm
Permissible axial displacement from the normal position of one bearing ring relative to the other

Abutment dimensions - NA 4900 RS

Abutment dimensions

da
min. 12 mm
Smallest permissible abutment diameter shaft, bearings with flanges
Da
max. 20 mm
Abutment diameter housing (with flanges)
ra
max. 0.3 mm
Fillet radius

Calculation data

Basic dynamic load rating C
7.37 kN
Basic static load rating C0
8.15 kN
Fatigue load limit Pu
0.965 kN
Limiting speed
12 000 r/min

Mass

Mass bearing
0.025 kg

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