Internal clearance

SKF spherical roller bearings are produced as standard with Normal radial internal clearance and most are also available with a greater C3 clearance. Many bearings can also be supplied with a smaller C2 clearance or the much greater C4 or C5 clearances.
SKF spherical roller bearings for vibratory applications are produced as standard with C4 clearance.
The radial internal clearance limits are listed for bearings with
  • cylindrical bore in table and with
  • tapered bore in table.
The clearance limits are in accordance with ISO 5753:1991 and are valid for bearings before mounting under zero measuring load.