Noise | High pitched metallic noise | Poor lubrication | Improve lubrication |
Clearance too small | Correct clearance |
Poor fitting | Investigate mounting method and seating |
Excessive load | Examine shaft and housing tolerances for closing effect |
Low pitched metallic noise | Brinelled raceway surface | Avoid shock loads |
Regular noise | Rust and damage | Check and replace seals and relubricate |
Flaking of raceway surface | Improve lubrication and check fitting,clearance and fixing method |
Irregular noise | Ingress of foreign matter | Check and replace seals and relubricate |
Excessive clearance | Correct clearance |
Damege and flaking of rolling element | Reduce loads and/or clearance |
Variable noise | Variable clearance due to temperature changes | Check fits taking housing material and temperature into consideration |
Damage to raceways | Improve lubrication and check fitting,clearance and fixing method |
Heavy vibration | Flaking of raceway and rolling element | Improve lubrication and check fitting,clearance and fixing method |
Ingress of foreign matter | Check and replace seals and relubricate |
Excessive clearance | Correct clearance |
Poor location | Ensure abutment face and fitting diameter are perpendicular |
Excessive heat generation | Clearance too small | Correct clearance |
Poor location | Ensure abutment face and fitting diameter are perpendicular |
Excessive load | Examine shaft and housing tolerances for closing effect |
Poor lubrication | Improve lubrication |
Creep | Maintain recommended shaft and housing fits |
Lubrication failure | Too much grease | Use correct lubricant quantity |
Ingress of foreign matter | Check and replace seals and relubricate |