Relationship between radial internal clearance and axial internal clearance
Regarding deep groove ball bearings and matched pair and double-row angular contact ball bearings, equations of the relationship between radial internal clearance and axial internal clearance are shown as follows.
Deep groove ball bearings
Double-row angular contact ball bearings
Matched pair angular contact ball bearings
Double/four-row and matched pair tapered roller bearings
where:
a : axial internal clearance mm
r : radial internal clearance mm
: nominal contact angle
e : limit value of Fa/Fr (shown in the bearing specification table.)
mo=re+ri -Dw
re : outer ring raceway groove radius mm
r i : inner ring raceway groove radius mm
Dw : ball diameter mm