Item NumberNNU4960M P51 W33 Deutsche Kugellager Fabrik
CategoryCylindrical Roller Bearing Double Row
Weight and Dimensions
Inner (d) MM
300
Outer (D) MM
420
Width (B) MM
118
Inner (d) Inch
11.811
Outer (D) Inch
16.5354
Width (B) Inch
4.6457
Weight (kg)
48.7
Product Properties
Bore
C - Cylindrical Bore
Seal
No Seal
Cage Type
M - Brass Cage
External Modification
W33
Radial Internal Play
C1 Internal Play (Less than C2)
Precision
P5 Precision (Higher than P6)
Heat Stabilization
No Heat Stabilization - Temperatures up to 120 °C
Suffix description
MMachined Brass Cage, Located On The Rolling Elements
P51Combination Of P5 (Dimensional And Running Accuracy To ISO Tolerance Class 5 (Better Than P6)) And C1 (Radial Clearance And Reduced Levels Of Vibration)
W33Lubrication Groove And Three Holes In Bearing Outer Ring
Product description
The NNU4960M P51 W33 Deutsche Kugellager Fabrik 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 NNU4960M P51 W33 Deutsche Kugellager Fabrik 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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