NNC 4938 CVDouble row cylindrical roller bearing

SKU: NNC 4938 CVDouble row cylindrical roller bearing

Double row cylindrical roller bearings are designed to accommodate high to very high radial loads in combination with medium to high speeds. The SKF assortment includes many designs and variants, such as standard and full complement bearings and also greased and sealed bearings. Depending on the configuration of the outer and inner rings, the bearings are available in locating as well as non-locating designs.

ID:186926

Dimensions - NNC 4938 CV

Dimensions

d
190 mm
Bore diameter
D
260 mm
Outside diameter
B
69 mm
Width
d1
216 mm
Shoulder diameter inner ring
D1
233 mm
Shoulder diameter outer ring
b1
7 mm
Width annular lubrication groove outer ring
K
4 mm
Diameter lubrication hole (outer ring)
r1,2
min. 2 mm
Chamfer dimension (open bearings)

Abutment dimensions - NNC 4938 CV

Abutment dimensions

da
min. 201 mm
Abutment diameter shaft
das
208 mm
Abutment diameter shaft
Da
max. 250 mm
Abutment diameter housing
ra
max. 2 mm
Fillet radius

Calculation data

Basic dynamic load rating C
605 kN
Basic static load rating C0
1 290 kN
Fatigue load limit Pu
132 kN
Reference speed
1 100 r/min
Limiting speed
1 400 r/min
Minimum load factor kr
0.25

Mass

Mass bearing
11.2 kg

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