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Specifications
Availability5 pcs
BrandNSK
Item NumberNNU4948BE1C3 NSK
CategoryCylindrical Roller Bearing Double Row
Weight and Dimensions
Inner (d) MM
240
Outer (D) MM
320
Width (B) MM
80
Inner (d) Inch
9.4488
Outer (D) Inch
12.5984
Width (B) Inch
3.1496
Weight (kg)
18.34
Product Properties
Bore
C - Cylindrical Bore
Seal
No Seal
Cage Type
M - Brass Cage
External Modification
W33
Radial Internal Play
C3 Internal Play (Higher than Cn)
Precision
Standard Precision
Heat Stabilization
No Heat Stabilization - Temperatures up to 120 °C
Suffix description
BInternal Design Modification
E1Notch Or Lubricating Groove In Ring
C3Internal Clearance Larger Than Normal
Product description
The NNU4948BE1C3 NSK is a double-row precision cylindrical roller bearing. This bearing has a particularly high radial load capacity and high running accuracy. The design consists of a solid inner and outer ring with a double row of cylindrical rollers with a cage. The rolling elements are guided between flanges. This construction enables compact bearing arrangements with high radial stiffness and very high precision and load capacity. The outer ring is separable from the inner ring, facilitating (dis)assembly. Precision cylindrical roller bearings are often used, for example, in the main spindles of machine tools.
The NNU4948BE1C3 NSK is equipped with a cage that prevents the cylindrical rollers from coming into contact with each other. This design allows for controlled movement of the rolling elements. There is less friction than in full-complement cylindrical roller bearings. As a result, higher rotational speeds are possible, and less heat is generated.
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