M-IE DeptBearing Failure Query Sheet

CustomerDeptOfficer / Contact

A. Equipment Data :1 Description

2 Input Rating3 Output Rating4 Model & Make5 Year of Commissioning

Note

B. Bearing Data :1 Full bearing description & make ; full

adapter sleeve / withdrawal sleeve / lock nut description & make

2 Bearing location [ drive end / non drive end ]

3 Whether bearing has fixed position or floating positionNote

C. Bearing Fitment Data :1 Tolerance, radial run out & surface roughness of

shaft od ; axial run out of shaft abutment2 Tolerance, radial run out & surface roughness of

housing bore ; axial run out of housing abutment 3 Mounting method [ hot or cold ] ;

Is mounting paste used ?4 Mounting tightening torque [ in Nm over thread

size ] 5 Mounted bearing clearance6 Static & dynamic misalignments [ in deg ]

Note

D. Grease Lubrication Data :1 Brand name & make2 Base oil viscosity at 40 C [ in cst ] 3 Thickener / NLGI class / Temp range4 Method [ by hand pump or by ringmain

system ]5 Housing sealing [ felt seal / labyrinth

ring / O ring / V ring ]6 Initial fill quantity / regreasing interval /

regreasing quantity / flushing intervalNote

E. Oil Lubrication Data :1 Brand name & make2 Viscosity at 40 C [ in cst ] 3 Temperature range4 Method [ oil sump or circulating

oil or oil mist ]5 Housing sealing [ labyrinth ring /

lamellar ring / O ring / V ring ]6 Initial fill quantity / topping up

interval / flushing interval

1

M-IE Dept7 Maintained level with respect to

bottom most rolling element when bearing is stationary

8 For oil mist lubrication, air - oil mix ratio / flow rate / flow speedNote

F. Bearing Operation Data :1 RPM [ if variable, range and time

proportions ]2 Radial load on bearing [ in N ]3 Axial load on bearing [ in N ]4 Ratio of equivalent dynamic load

to basic dynamic load5 Ambient temperature [ in C ]6 Bearing operating temperature at

outer / inner ring [ in C ]7 Humidity / Dust [ low / med / high ]8 Vibration [ low / med / high ]

Note

G. Bearing Failure Data :1 Failure frequency

[ including relative to other brands ]

2 Description of physical damages on bearing inner ring

3 Description of physical damages on bearing outer ring

4 Description of physical damages on bearing rolling elements

5 Description of physical damages on bearing cageNote

H. Bearing Storage Data :1 Storage procedure

2 Storage period before usageNote

I. Any other Data :1 Procurement source of

bearing / sleeve / lock nut2 Supply Invoice detail & PDIR

detail3 Load distribution on shaft

4 Any drawings attached

5 Equipment manufacturer's recommendation on bearing / lubrication usage & schedule

6 Any special data

Note

2

M-IE Dept

3