Selecting a bearing8. Measurement methodsGeneral rules regarding verifying ball bearing dimensions and runout are specified in JIS B 1515-2. Please refer to below for the dimensions and measurement methods of runout. Dimensions
Runout
Remark: [ ] is the expression in previous JIS.
Measure the amount of change within the radial plane Bore (dS) figure 8-1
Measure the amount of change within the radial plane Outer Diameter (DS) figure 8-2
Measure while rotating inner ring one revolution Inner Ring Width (BS) figure 8-3
Measure while rotating outer ring one revolution Outer Ring Width (CS) figure 8-4
Read the indicator while rotating inner ring one revolution Side Runout of Inner Ring (Sd) figure 8-5
Read the indicator while rotating outer ring one revolution Outside Cylindrical Surface Runout with Side (SD) figure 8-6
Read the indicator while rotating inner ring one revolution with dead weight placed on inner ring Radial runout of inner ring (Kia) figure 8-7
Read the indicator while rotating outer ring one revolution with dead weight placed on outer ring Radial runout of outer ring (Kea) figure 8-8
Read the indicator while rotating inner ring one revolution with dead weight placed on inner ring Axial runout of inner ring (Sia) figure 8-9
Read the indicator while rotating outer ring one revolution with dead weight placed on outer ring Axial runout of outer ring (Sea) figure 8-10 |
| |