2008 MAO 3750-2500 Mixer NO A, B ring.

Mixer type: Sicoma MSO 3750/2500
Year of manufacture: 2008
The original gearbox details are:
Manufacturer: Bonfiglioli
Type: X310R227

Recently, I was dealing with a device from 2008.

This concrete mixer made in Italy is different from the one made in Zhuhai, China. Initially, the technician sent the sealing parts according to the configuration from 2008 produced in Zhuhai,

Upon arriving at the customer's location, it was discovered that the information provided was incorrect
This equipment does not have A and B rings. All four bearings are of the same model, 23122.

We had to resend the parts, which resulted in an additional 2 months of shipping time and a compensation of 4 sets of seals. This serves as a lesson for us.

the photo of the seal group:

motor side and opppsite motor side display diagram: