Name: NNU4920BK/SP/W33/C2 SKF
Brand: SKF

NNU4920BK/SP/W33/C2 SKF

Double-row precision cylindrical roller bearing

Stock

not in stock

Brand

SKF

Article number

NNU4920BK/SP/W33/C2 SKF

Inside diameter

100mm

Outside diameter

140mm

Width

40mm

Product description

The NNU4920BK/SP/W33/C2 SKF 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 NNU4920BK/SP/W33/C2 SKF 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.

Product specifications

Inside diameter 100mm
Outside diameter 140mm
Width 40mm

All dimensions

Inner (d) MM 100
Outer (D) MM 140
Width (B) MM 40
Inner (d) Inch 3.937
Outer (D) Inch 5.5118
Width (B) Inch 1.5748

Suffix description

B Present Standard Design With Brass Cage Of Double Pronged Type
K Tapered Bore, Taper 1:12
SP Special Precision Class For Machine Tool Bearings: Dimensional Accuracy Approximately To P5, Running Accuracy Approximately To P4
W33 Lubrication Groove And Three Holes In Bearing Outer Ring
C2 Bearing Internal Clearance Smaller Than Normal

Technical details

Availability 0 pcs
Brand SKF
Item number NNU4920BK/SP/W33/C2 SKF
Category Cylindrical Roller Bearing Double Row

Weight and Dimensions

Weight (kg) 1.84

Product Properties

Bore K - 1:12 Tapered Bore (Standard for Most Types)
Seal No Seal
Cage Type M - Brass Cage
External Modification W33
Radial Internal Play C2 Internal Play (Less than Cn)
Precision SP - Precision Higher than P4S
Heat Stabilization No Heat Stabilization - Temperatures up to 120 °C

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