Dear Mr. Deepak Vermaa,

could you establish the primary reason for the failure? Did the sleeve break and the pulley moved then? Or did the pulley shaft made movements after the adapter sleeve lost grip and then the whole assembly came off?

Did the sleeve break at the spot as marked in atached sketch, and was it of quality origin?

Thank you in advance for an answer everybody could learn a bit, perhaps...

Pls. check all other bearing arrangements for correct setting of the loc-rings! I support Mr. Blenkhorn on the opinion that bearings should be replaced. At least, they already did some hours, and then, they went through nonspec. operational conditions. Not every damage to a roller bearing may be seen from the outside.

Regards

R. ■

Dear Mr. Deepak Vermaa,

thank you for answering back.

i would strongly disapprove of any welding to be done on a shaft, as shaft material is normally made from high strength steel which does not support welding so easily. The weld might even simply break out of the shaft / sleeve material from cold cracking, and the temptation to then make a bigger weld is to be considered. But even if the tack weld seems to be holding, pls. be aware, that every time one has to change / dismount the bearing, the tack weld must be erased, leading to damages on the shaft.

Another point: Pls. take care to source replacement materials, i. g. adapter sleeves etc. from reliable quality sources, as noname low cost materials might not be manufactured to the required strength nor standard.

Regards

R. ■