Babbitt White Metal Bearing Archives

RA Power Solutions was approached by a Russian company based in Yekaterinburg, Russia, with a request for urgent repair of Wartsila Generator Bearings.

**Wartsila Generator Bearing Babbitt White Metal Damaged**

The Generator Bearing was air freighted to us for repair. The following are the main dimensions of the Generator Bearing:

S.NO	Description	Standard Dimensions with Tolerance as Per Drawing
1.	Bearing Inner Dia (Bore)	250.00 (0.03)
2.	Bearing 2nd Inner Dia	266.00MM
3.	Bearing Outer Diameter	507.00MM
4.	Bearing White Metal Width	250.00MM
5.	Bearing Total Width	263.00MM
6.	Client	Based in Yekaterinburg, Russia

**Rough Drawing of Wartsila Generator Bearing**

**Shaft Diameter on Which Bearing is Assembled**

**Photo Showing Wartsila Made Generator Bearing**

Pre-Inspection of Generator Bearing of Wartsila :

i) The bearing was thoroughly cleaned, and the white metal was broken and chipped off from the bearing inner diameter.

ii) The bearing was subject to a shot blasting process for cleaning.

iii) Hardness and MPI for crack detection were done and were observed within limits.

iv) Rebabbitting of the generator bearing was undertaken in our plant, which has the latest breed of centrifugal equipment and machines. The bearing ID was maintained as per the drawing received from the client.

**Wartsila Generator Bearing After Rebabbitting**

**Wartsila Generator Bearing Inspection under Process**

With 47+ years of experience, RA Power Solutions undertakes rebabbitting of large bearings up to 1500 MM in diameter, as well as manufacturing new bearings according to drawings or samples.

**Wartsila Generator Bearing Ready for Dispatch**

Developing and manufacturing bearings as large as 1500 mm in diameter is challenging. RA Power Solutions’ manufacturing, precision engineering, and quality control expertise are evident in this success story. The performance and reliability of these bearings are crucial in industrial machines to ensure smooth operation.

We have regularly executed services in Dubai, Fujairah, Qatar, Saudi Arabia, Oman, Iraq, Togo, Malta, Freetown, Egypt, China, Germany, Malaysia, Iran, Indonesia, Vietnam, Jordan, Singapore, etc.

We also have engine crankpin bearings available in our stock for various engine models from Wärtsilä, MAN B&W, Sulzer, Yanmar, Daihatsu, MAK, Caterpillar, Cummins, Deutz, Mitsubishi, Allen, Himsen, and Niigata.

For more information regarding Rebabbitting Bearing of Wartsila, repair of Generator Bearing of Wartsila, please contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com or call us at +91 9582647131 or +91 9810012383.

FAQ

1. Why did the Wärtsilä generator bearing need rebabbitting?
The Wartsila generator bearing required to be rebabbitted due to rust and cracking of the white metal liner. Repairing the bearing restored its original performance and increased its service life.

2. What is bearing rebabbitting?
Bearing rebabbitting is the process of removing the damaged white metal and lining and adding new white metal. The bearing is also machined to get the right dimensions.

3. Can large Wartsila bearings be repaired instead of replaced?
Yes, the large bearings of the Wärtsilä engine may be repaired through rebabbitting in case they are capable of being repaired.

4. What are the benefits of bearing rebabbitting?
Bearing rebabbitting is an excellent way to get back to the original specifications of a bearing, increase performance, and prevent bearing replacement costs.

It is observed that in power plants and heavy industries, the turbine shafts, alternator shafts, rotor shafts, pumps, and crankshafts operate continuously without any break. The babbitt white metal bearings, which support the shafts, get worn out due to continuous operation or get damaged due to an accident.

We have observed that while the white metal bearings are promptly replaced, no action is taken on the shaft, which is supported by the bearings.

RA Power Solutions has introduced a revolutionary onsite polishing machine, details of which are given below:-

Enhance the life of the turbine shafts, alternator shafts, rotor shafts, pumps, and crankshafts by onsite polishing.
As mentioned above, the damaged or worn-out bearings are replaced, but no attention is given to the shaft. We offer comprehensive services and an annual contract for the polishing of the shafts installed in your factory.

The details of polishing are as follows:-

We depute a team of technicians who are experienced to undertake dimensional inspection of the shaft to check the taper and ovality. The inspection is done by the calibrated instruments.
The hardness of the shaft and crack detection by MPI are undertaken. This is required only in case of accidents.
The surface finish of the bearing sitting area of the shaft is checked. We use an advanced Mitutoyo surface finish instrument to check.
Visual inspection is undertaken to check the pitting, bearing line marks, etc.

Use of onsite polishing equipment

We have portable onsite polishing equipment, which is carried by technicians to any site all over the world. This revolutionary onsite polishing equipment is capable of removing high points, bearing line marks, and pitting. The stock removal can be as low as 0.01 mm, thus there is no change in the oil gap and the dimension of the shaft.

Increase the life of turbine shafts, alternator shafts, rotor shafts, pumps, and crankshafts

Our clients all over the world have experienced that polishing the shafts before fitment of white metal babbitt bearing increases not only the life of bearings but also of the shaft. It avoids a major breakdown of the shaft, bearing, and the plant.

NO REQUIREMENT OF REMOVAL OF THE SHAFT FROM THE MAIN EQUIPMENT

At RA Power Solutions, it is possible to undertake the polishing of the shaft without any disassembly, hence, minimum downtime and high surface finish can be achieved onsite.

LOW COST OF POLISHING

The cost of onsite polishing is marginal. It prevents long-term damage to the bearing and shaft. The technology is now easily available. Power plants, industries, and shipping companies can benefit from it. It is ideal for all rotary equipment.

We are available 24*7 to serve you :

**Turbine Shaft Diameter under Polishing**

**Alternator Shaft Ready for Polishing**

For more information regarding Babbitt White Metal Bearing, onsite and crankshaft polishing machine, contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com or call us at +91 9582647131 or +91 9810012383.

Frequently Asked Questions

1. How much material is removed in the polishing of a shaft by an on-site method?
In-site polishing removes very little material, typically in the millimeter range. This controlled removal of material ensures that all surface defects are removed and the dimensions of the shaft are retained, and hence, the change in the clearance of bearing oil is minimized.

2. What checks are performed before polishing a shaft?
Before starting the polishing process, the shaft is checked for taper, ovality, surface finish, pitting, and bearing line marks using calibrated tools for measurements, hardness testing, and MPI crack detection.

Category: Babbitt White Metal Bearing

Wartsila | Bearing Rebabbitting | Repair | White Metal Bearings