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skf-nnu-4938-b-spc3w33-nnu-4938-b-spc3w33

SKF NNU 4938 B/SPC3W33 double-row super-precision cylindrical roller bearing 190 x 260 x 69 mm

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Product description:

  • Cylindrical roller bearings have a high radial load carrying capacity and are capable of rotating at high speeds
  • The rollers are guided by fixed track collars on one of the bearing rings
  • The bearing ring with the track collars and roller set can be slid off from the other ring
  • This makes mounting easier (especially if the bearing is to be mounted both on the shaft and on the bore with a fixed fit)
  • A cylindrical roller bearing can withstand (limited) axial displacement
  • Full complement cylindrical roller bearings: contain as many rollers as possible
  • Double-row cylindrical roller bearing: consist of two rows of cylinders
Key features according to our expert
  • Inner diameter: 190 mm
  • Width: 69 mm
  • Number of rows: 2
  • Radial clearance: C3
  • Material (cage): Brass (solid)
  • Seal (bearing): Without seal
  • Material (bearing seal): Not applicable
  • Bore type: Cylindrical
  • Outer diameter: 260 mm
Specifications / All features
  • Brand: SKF
  • EAN: 7316577725400
  • Supplier number: SKF NNU 4938 B/SPC3W33
Inner diameter
190 mm
Width
69 mm
Number of rows
2
Radial clearance
C3
Material (cage)
Brass (solid)
Seal (bearing)
Without seal
Material (bearing seal)
Not applicable
Bore type
Cylindrical
Outer diameter
260 mm
Relubrication feature
Annular groove and lubrication holes
Radial internal clearance
C3
Loose flange
None
Basic static load rating
880 kN
Attainable speed for grease lubrication
2,800 r/min
Lubricant
None
Design
NNU
Cage
Machined metal
Material, bearing
Bearing steel
Bearing part
Complete bearing
Number of flanges, inner ring
0
Tolerance class
Class SP (SP)
Sealing
Without
Number of flanges, outer ring
3
Attainable speed for oil-air lubrication
3,200 r/min
Bore diameter
190 mm
Basic dynamic load rating
402 kN
Coating
Without
Outside diameter
260 mm
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