Case Study - Cement Mixer bearings & remote bearing identification

In this article we look at how we can identify a bearing remotely based on photographs and measurements from a customer. Our customer called to say that his cement mixer bearings had broken and he was on his way over with the bag of bits that he had collected after the bearings had failed.

When he arrives we had an oil seal and a shaft.

 

After cleaning up both items, the seal although deformed had both the sizes and style written on them and was a 40 55 7 TC. The shaft still had the inner rings of a bearing on either side of the toothed part and we were able to measure the shaft at those points and this also helped us to identify that the bearings were deep groove ball bearings as there was just a single groove in inner ring.

Unfortunately, whilst this gave us some information, we could now work out the inside diameter of the bearings and the depth of the bearings as the inner rings were intact, we couldn’t get the outside diameter from the information that had been provided. At this point we could only make an educated guess on what the bearings were and whilst in this case it would have turned out to be accurate, in order to make sure that we identified the bearings correctly we asked the customer to look at the hub the bearings were being fitted into and send us some more photos and measurements to be absolutely sure that we were identifying the bearings correctly.

With this information, we already knew that the smaller bearing was 25mm inside diameter and 15mm deep. With this new information we could see that the outside diameter of the bearing was 52mm making the bearing 25x52x15 or a 6205 bearing. Considering the application we knowing that it didn’t need high running speeds but that it was susceptible to contamination so we selected a 6205-2RS bearing.

For the second bearing, we knew the shaft size was 40mm and the depth was 15mm. With the customers additional measurement we could make the outside diameter out to be 68 making the bearing 40x68x15 or a 6008 bearing so we opted to supply the customer with a 6008-2RS bearing.

This shows how you can save a journey to us, saving both time and cost by sending us some simple measurements from your broken bearings. You can send the photos to us by text, whatsapp or by email and we can identify your bearings remotely and give you the price and availability without you needing to travel to us.

This helps to make us your local bearing supplier, so local that you don’t even need to leave your own workshop.