SKF-Super-precision double row cylindrical roller bearing with lubrication feature
SKF-Super-precision double row cylindrical roller bearing with lubrication feature

NNU 4921 BK/SPW33

SKF-Super-precision double row cylindrical roller bearing with lubrication feature

Item no.
NNU 4921 BK/SPW33
Details
105x145x40 mm 2.05 Kg
DescriptionDownload data sheet
NNU 4921 BK/SPW33 - Super-precision cylindrical roller bearingsImage may differ from product. See the technical specification for details.

NNU 4921 BK/SPW33

Super-precision double row cylindrical roller bearing with tapered bore and lubrication feature
Super-precision double row cylindrical roller bearings in the NNU 49 series are designed to accommodate heavy radial loads and high speeds, while providing a high degree of stiffness. Having three flanges on the outer ring and no flanges on the inner ring, the bearings can accommodate axial displacement in both directions. The separable design simplifies mounting and dismounting, particularly when load conditions require both rings to have an interference fit. The tapered bore enables accurate adjustment of clearance or preload during mounting.
  • High radial load carrying capacity
  • Very high rigidity and high running accuracy
  • Minimize noise, vibration and heat generation
  • Accommodate axial displacement in both directions
  • Lubrication feature
  • Thin section enabling compact application design