Running inspection of NTN Plummer block housing with spherical roller bearing
Once the NTN spherical roller bearing arrangement has been assembled with NTN Plummer block housing,make sure the assembly work has been correctly achieved by following the procedure below.
1,First ,turn the NTN spherical roller bearing for Plummer block housing by hand to check that the bearing and seal are free from any irregularities.
a.Non-smooth touch:trapped dust or scratch
b,Irregular torque:abnormal interference:
c,Excessively large running torque:
Too small bearing clearance,poor flatness of mounting seat.
2,Second,run the NTN Spherical roller bearings with plummer block housing by power, begin with no load and at lower speed.
a,Abnormal noice, dust,dent mark,or poor lubrication
b,Vibration: Greater misalignment ,or excessively large residual clearance.
3,Run the bearing under normal operating conditions to check for temperature rise on the bearing,the possible causes to abnormal
temperature rise with bearing are as follows:
a,allowable speed has been exceeded
c,too small residual clearance
d,negative clearance owing to excessive expasion or compression with the shaft
e,warped NTN plummer block housing owing to poor flatness with the mounting seat
g,too great tightening allowance for the contact seal, or interference with rotating components such as those around the labyrinth seal
If any irregularity is found as a result of running inspection,determine and remove the cause, then reperform the running inspection
to make sure the bearing runs normally
XRB is the China bearing manufacturer & factory & exporter & supplier ,it can supply NTN plummer block housings with spherical roller bearing,
Our large quantity NTN plummer block housings with spherical roller bearing Stock can meet your need with lowest price and fast delivery
We accepted DHL,FEDEX,TNT express for small order and samples order,also the transportation By AIR or By Sea,by Train are all available.we are sure we can ship NTN plummer block housings with spherical roller bearing to your office at the first time.