Crankshaft Grinding And Repair of High Capacity Engine

It is generally observed that high-capacity diesel engine crankshafts have lengths ranging from 6 meters to 12 meters and weigh up to 20 tons. Again, the diameter of the crankpin and main journal varies between 500 mm to 700 mm and in some cases more than 700 mm.

In case of the following problems during the operation of the engine, crankshaft grinding and repair are recommended.

The crankshaft repair is also recommended after the engine has completed the designated number of operation hours.

Reason for crankshaft repair and crankshaft grinding:-

  • Irrespective of the application of diesel engines for marine or land-based operations, in most cases, the engines are operated continuously, which results in various deviations in the crankshaft.
  • The measurements of various parameters including taper and ovality need to be checked periodically or at the time of overhauling and are to be maintained within the stipulated tolerances.
  • The parallelism, linearity, and run-out have to be within limits.
  • The surface finish of the crankpin and main journal have to be within The surface finish of the crankpin and the main journal have to be within the standards.
  • The radius fillet and lubricating oil hole should be according to the original profile and dimensions as per the drawing of the crankshaft.

Above are some of the reasons that require crankshaft grinding and crankshaft repair.

RA Power Solutions Pvt. Ltd. with experience of more than four decades undertakes crankshaft grinding and crankshaft repair up to the diameter of 700 mm on-site and without removal of the crankshaft from the engine block. The length and the weight of the crankshaft are not a criterion for us for Crankshaft grinding or Crankshaft repair.

The following parameters are maintained at the time of crankshaft grinding and crankshaft repair.

  • The Taper and ovality of the crankpin and main journal are strictly maintained as per the tolerances stipulated in the manufacturer’s manual.
  • After grinding and repair are undertaken by RA Power Solutions, all the parameters like surface finish, the profile of radius fillet, lubricating oil hole, and parallelism are maintained and checked as per the original specifications.
  • The crankshaft is inspected by experienced technicians for all the parameters and inspection reports are prepared and shared with the clients.
crankshaft repair
Crankshaft Repair
onsite crankshaft repair
Crankshaft repair

RA Power Solutions gives great importance at the time of crankshaft grinding and crankshaft repair not only to the maintenance of taper and ovality but to the surface finish of the crankpin and main journal which is maintained within an RA value of 0.3 um.

grinding of crankshaft onsite

We have experienced that the maintenance of the high surface finish of the crankpin and main journal after grinding reduces the friction between the bearing and the crankpin and enhances the life of the crankshaft. It is our experience that bearing life is also increased manifolds.

We specialize in expert crankshaft grinding and repair and marine crankshaft repair services. The crankshaft is a critical component of any engine, and its precision and smooth operation are vital for optimal performance.

With cutting-edge technology and skilled technicians, RA Power Solutions offers top-notch crankshaft grinding and repair services and marine crankshaft repair to ensure the highest level of accuracy and reliability.

crankshaft grinding of crankpin

For your requirement of onsite crankshaft grinding, on site machining services, in situ crankshaft grinding repair, crankshaft grinding and repair, marine crankshaft repair, and crankshaft repair up to 700 mm diameter, you may email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

This blog is written by Mr. Raj Shahani (Managing Director of RA Power Solutions). He has forty years of experience in the field of engine repair and is a technical adviser to various shipping and heavy industries based all over the world.

Babbitt White Metal| Babbitt Metal

Babbitt white metal has an important role in satisfactory performance of bearings. The selection of Babbitt white metal is done keeping in view various technical factors. Few of them are given below:-

  • RPM of shaft.
  • Load characteristics on Babbitt white metal bearing
  • Type of lubrication oil used.
  • Bonding characteristics required.
  • Cleanliness and type of filters used.
  • Maintenance schedule of the bearing.

RA Power Solutions Pvt. Ltd. manufactures Babbitt white metal in different grades strictly as per the requirement of the client. The Babbitt white metal is manufactured in our modern facilities having digital control on the metallurgical requirements, temperature and various other aspects required to produce quality white babbitt metal. We manufacture Babbitt white metal broadly of tin based and lead based. We provide babbitt bearings repair and babbitting services.

Tin based Babbitt white metal

The tin based Babbitt white metal is the material which contains more than 80% tin alloy. It may also contain a lesser percentage of antimony, lead and copper. Some of the tin based Babbitt metals are free of lead mainly for the equipments used in the food industry.

The tin-based Babbitt metal has the inherent property to provide low wear and tear due to low friction resistance.

Lead-based Babbitt white metal

Lead-based Babbitt white metal is also a commonly used bearing material as it contains 75% or more of lead alloy. It also contains tin and antimony. The lead-based metal has excellent corrosion, capabilities and is used for marine applications.

Generally speaking, lead based Babbitt white metal is used for the shaft RPM of 100 to 1000 maximum.

Babbitt White Metal with Tin % of 83.2               

Babbitt White Metal with Tin % of 83.2Babbitt White Metal Manufactured and Exported

 Babbitt White Metal Manufactured & Exported

The Babbitt white metal manufactured by us is also used for the manufacturing of new bearings and Rebabbitting of old bearings which is undertaken in our workshop. Presently, the Babbitt white metal is exported to various countries including Ecuador, Bolivia, Colombia, Saudi Arabia, etc.

Export of Babbitt White Metal with 80% Tin  Babbitt White Metal Ingots 

Export of Babbitt White Metal with 80% TinBabbitt White Metal Ingots

This blog is written by Mr. Raj Shahani (Managing Director of RA Power Solutions). He has forty years of experience in the field of engine repair and is a technical adviser to various shipping and heavy industries based all over the world.

White Metal
White Metal

White Metal Babbitt Ingots
White Metal Babbitt Ingots

For more information related to leading Babbitt metal, Babbitt bearings repair, and babbitting, please email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Leading Manufacturers of Babbit White Metal | White Metal Manufacturer

The use of Babbit white metal bearings is getting popular in this advanced world of technology. Knowing the simple manufacturing of white metal Babbit bearings and the possibility of their repair by Rebabbitting makes the application of white metal Babbit bearings more popular. The adverse condition and extraordinary load on white metal bearings in which it can operate is well-known and engine manufacturers and heavy machine designers preferred metal.

RA Power Solutions Pvt. Ltd. understanding the application and criticality of babbit white metal has developed a procedure by which the babbit white metal is produced. We are the best Babbitt white metal manufacturer and it is manufactured by us and qualifies for the ASTM and other international standards. The babbit white metal is produced under strict metallurgical control to provide excellent conformability and embeddability.

The main feature of the Babbit white metal manufactured by us is that it is easily cast with reboot bonding to cast iron, bronze, or cast steel. The property of Babbit white metal is well-known for its satisfactory performance, excellent corrosion resistance, and self-lubricating properties. The combination of the centrifugal casting of Babbit white metal, selection of the right grade of metal, machining, and maintaining of oil allowances ensure long life and satisfactory performance of the Babbit white metal.

The broad range of both tin and lead-based Babbit metal is manufactured strictly as per the client’s specifications and requirements.

Application of Babbit white metal for Engine bearing

The white metal is mainly used to line cast iron and bronze Crankpins and Main journal-bearing shells of Diesel engines. Depending on the rpm, the type of lubrication oil white metal can be tin-based or lead-based alloy. We use our experience of four decades to manufacture the Babbit white metal bearings for Engines, Turbines, Alternators, etc with zero compromises in its quality.

We have in-house facilities to inspect white metal before dispatch to our customers.  The notable use of babbit white metal is that it extends the life of the bearing. Generally, the Bearings which are used for marine diesel engines are tin-based.

White Metal Turbine Bearing

White Metal Turbine Bearing

Properties of white metal:

  • Excellent thermal conductivity
  • Resistance to corrosion

Babbit White Metal BearingBabbitt White

Babbit White Metal Bearing                               Babbit White Metal Manufacturer

Babbit White Metal Engine BearingBabbit White Metal Bearings

Babbit White Metal Engine Bearing       Babbit White Metal Bearings

RA Power Solutions: Your Trusted White Metal Manufacturer. Experience top-tier manufacturer of white metal for a range of industrial needs. Our precision-engineered white metal products ensure unmatched quality and performance. Trust in our expertise for reliable solutions.

For more information on the manufacturer of white metal, please email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Manufacturing of White Metal Babbitt Bearings | RA Power Solutions

Manufacturing of White Metal Babbitt Bearings has been undertaken for all applications for over 40 years. The development and manufacturing of White Metal Babbitt Bearing as per the customer drawing or as per the sample have been the core of the business all these years. We have developed successfully hundreds of White Metal Babbitt Bearings as per a drawing or a sample. These bearings were discontinued by the original manufacturer.

It is experienced that due to changes in technology, the large integrated engineering plants in areas like cement, fertilizer, chemical, and steel are discontinued by the manufacturers. In this situation, RA Power Solutions has an important role to play by successfully developing the bearings and keeping the plant in operation. We have the approval as manufacturers and suppliers of various private and public sector companies in engineering, defense, and maritime, oil and gas, etc.

Remetalling of Alternator Bearing

Wide range of White Metal Bearing Manufactured:

  • We can manufacture bearings up to 1500 mm in diameter.
  • All the bearings are manufactured by the centrifugal babbitting process.

The new bearings and repair of old bearings are undertaken for various machines including the following:

  • Rotary Kilns
  • Turbines
  • High-Speed Compressors
  • Gearboxes
  • Boiler Feed Pumps
  • Generators

White Metal Babbitt Bearing Under Inspection

white metal babbiitt bearing under inspection

White Metal Bearings are repaired by us. We undertake the repair of the following bearings:-

  • Stern Tube Bearings
  • Journal Bearings
  • Thrust Bearings
  • Slide Shoe Bearings
  • Trunnion Bearings
  • Tilt Pad Journal Bearings
  • Pedestal Bearings
  • Self-leveling Thrust Bearings

Babbitt White Metal Bearing Under Machining Process

babbitt white metal bearing under machining process

An inspection procedure was followed at the time of rebabbitting of old white metal bearings.

  • White metal from the old bearing is removed at a controlled temperature.
  • A metallurgical test of existing Babbitt white metal is undertaken.
  • The steel shell of the old white metal Babbitt bearing is shot blasted.
  • Surface hardness is checked for the presence of any hard spots.
  • Crack detection by MPI and the dye-penetrant test are done.
  • After the Rebabbitting process, the above inspection procedure is repeated.
  • Ultrasound of white metal Babbitt bearing after repairs is of great importance to check the bonding.

Babbitt White Metal Turbine Bearing Ready for Dispatch:-

babbitt white metal turbine bearing

This is done by our experienced level-3 qualified technicians.

Conclusion: White metal by nature is delicate and needs to be handled with care. We pay extra attention to the packing of new white metal bearings and the bearings that have been received by us for repairs.

For more information on white metal bearings and Daihatsu engine bearing suppliers, please email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

In Situ Grinding Crankpins | In Situ Crankshaft Grinding Services

RA Power Solutions has more than four decades of experience in providing in situ crankshaft grinding, in situ crankshaft inspection and in situ grinding crankpins, and repair of the crankshaft of large high-capacity marine engines or engines installed for various applications.

In olden times whenever the crankpin or main journal of the crankshaft was damaged due to bearing failure or any other reason, the crankshaft was removed from the engine block by disassembly of the complete engine, packed, and taken to the workshop for grinding on a stationary crankshaft grinding machine.

This exercise not only delayed the commissioning of the engine but also cost it a fortune. In the early 80s, we received many crankshafts in our plant from overseas including Qatar, South America, etc. weighing more than 9 tons by Sea/Air.

In Situ Grinding Crankpins

With the introduction of an onsite machining tool, it is possible to undertake the repair of the crankpin and main journal. RA Power Solutions undertakes onsite grinding of crankshaft and main journal of the diameter ranging from 35 mm to 700 mm. The repair is possible without disassembling the engine and there is no need for the removal of the crankshaft. The portable and lightweight crankshaft machining tool is inserted from the window for grinding and polishing.

In Situ Grinding Crankpins

The onsite crankshaft grinding machine design used by us is of the latest design and is a technological revolution. It is centerless equipment and works on the same concept as of bench-type crankshaft grinding machine. No reference to the radius fillet of the crankpin is taken as in case of an accident the radius fillet gets damaged.

Crankshaft Grinding Services
Onsite Crankshaft Grinding Machine

The following are the advantages of using RA Power Solutions’ in situ grinding crankpins services:

  • Experienced technicians to assess the fault in the crankshaft and plan the repairs.
  • The latest design of portable crankshaft grinding tools ranges from 35 to 700 mm.
  • Light in weight can be taken as accompanied baggage by air to any part of the world.
  • Our crankshaft grinding machine weighs 1/3rd of our competitors saving on freight costs.
  • RA Power Solutions is the world’s largest manufacturer of portable in situ crankshaft grinding machines having sold more than 70 crankshaft grinding machines all over the world. The dedicated machine can be modified and manufactured according to the space available at the site.
  • Minimum repair time and cost of downtime are reduced considerably.
  • A company having more than forty years of experience.
  • The latest breed of inspection instrument is available to undertake hardness tests, MPI, surface roughness tests, dimensional inspection, etc.
  • We are a New Delhi-based company and our rates are again considerably lower than the European companies.

Crankshaft Grinding Services

With the introduction of the crankshaft grinder by RA Power Solutions, now it has become possible not only to undertake grinding and polishing of the crankshaft onsite but the crankshaft repair can be done by the ship or power plant staff of their own.

There is no requirement to call a company from outside to undertake crankshaft grinding and polishing which works out to be very expensive, especially the in situ crankshaft grinding services and repair companies based in the UK and Europe. 

The crankshaft grinding machine manufactured by RA Power Solutions has a range of diameters starting from 35 mm to 700 mm. Onsite training on the operation and maintenance of crankshaft grinding services is provided by us.

Crankpin Inspection
 crankshaft grinding services

For more information on in situ crankshaft grinding and in situ crankshaft grinding repair, please email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Babbitting Bearing Repair | Rebabbitting of Old Bearing | Repair And Maintenance Of New Bearings

RA Power manufactures white metal babbitt bearing and rebabbitting of old white metal bearing. All types of bearings for different applications are repaired or manufactured by us including the following:

  • Rebabbitting of old bearing or manufacturing of new babbitt bearing for high capacity diesel engine.
  • Rebabbitting for white metal bearing for turbine and rotor application.
  • Rebabbitting and manufacturing of new bearings for pumps, alternators, and all types of mechanical equipment.
Manufacturing of New White Metal Bearing
Manufacturing of New White Metal Bearing
Machining of White Metal Bearing of Alternator Shaft
Machining of White Metal Bearing of Alternator Shaft

The following services are offered for Babbitt Bearing:

  • Rebabbitting of old and worn-out bearings.
  • All parameters are maintained and improved as per the original white metal grade.
  • Manufacturing of new metal babbitt bearing up to 1500 mm diameter.
  • We develop, manufacture, and supply white metal babbitt bearing either as per the sample or drawing.
  • Small quantities of white metal babbitt bearing are accepted.
Dismantling of White Metal Bearing from Alternator Shaft
Dismantling of White Metal Bearing from Alternator Shaft
New Tri Metal Bearing Ready for Dispatch
New Tri Metal Bearing Ready for Dispatch

Rebabbitting of White Metal Bearing | Quality Control

We are an ISO-certified company and maintain the quality of bearing strictly as per the specifications mentioned in the drawing and as per the international standard. All the Babbitt bearings manufactured by us are guaranteed for satisfactory performance.

Damaged Bearing for Rebabbitting
Damaged Bearing for Rebabbitting
Inspection of Bearings After Rebabbitting
Inspection of Bearings After Rebabbitting

We stand a guarantee for 2500 hours of operation or 12 months from the date of dispatch whichever is earlier.

In this time of recession, all the organizations are trying to reduce the cost of maintenance. We are cost-effective and are well known for our quality standards.

Repair And Maintenance Of New Bearings

RA Power Solutions: Your partner in maintaining peak performance for new bearings. Our expert repair and maintenance of new bearings services ensure reliability and longevity. Experience seamless machinery operation – contact us today

For any repair and maintenance of new bearings, or bearing-related inquiries, please email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

White Metal Bearing Repair | White Metal Babbitt Bearing

RA Power Solutions understands the importance of white metal babbitt bearings irrespective of their application for high-capacity diesel engines, alternators, turbines, pumps, etc.

We specialize in white metal bearing repair and manufacturing of new white metal babbitt bearings, pads, and guide bearings up to the bore size of 1500 mm.

White Metal Bearing Repair
Manufacturing of New White Metal Bearing

Repair of Old Bearings:

To successfully repair old bearings, the following process is adopted by RA Power Solutions:

  • Removal of old white metal with controlled temperature.
  • A thorough inspection of the steel bearing shell for any variation in hardness, blow holes, and pitting.
  • MPI of the steel bearing shell to check any hairline crack
  • Visual inspection for any distortion in the original profile to avoid complications at the time of assembly.
  • Metallurgical inspection of old white metal used in the original bearing, selection, and improvement of white metal grade to enhance the life of the bearing.
  • Preparation and rebabbitting of white metal are done by a centrifugal system. This ensures uniform dense babbitting of white metal.
  • A thorough inspection of the bearing after rebabbitting for bonding and crack.
  • Rough and final machining in a CNC machine shop fully dedicated to maintaining close tolerances.

Manufacturing of New White Metal Babbitt Bearings:

  • We manufacture new white metal babbitt bearings for all applications up to 1500 mm bore size. It has the following features:
  • We can manufacture the white metal babbitt bearing strictly as per the drawing provided by the client.
  • In the case of non-availability of drawing which is common for the old pieces of equipment, bearing can be developed as per the sample provided.
  • We accept smaller quantities of white metal Babbitt bearings for manufacturing.

Bearing Remetallic Services

We are experts in extending Bearing Remetallic Services. The complete procedure of bearing remetallic services offered by us is standardized. Right from a selection of Babbitt white metal composition to the inspection of bare bearing shell, Rebabbitting of white metal by centrifugal process, machining, and final inspection.

The Bearing Remetallic Services are offered by us in the minimum possible time in comparison to other manufacturers. We are also considered to be the lowest in price.

Manufacturing of White Metal Bearing is in Process
Manufacturing of White Metal Bearings is in the Process

All bearings are manufactured by centrifugal process delivering the bearings of international standards with long life.

We have manufacturing facilities based near New Delhi International Airport and extend white metal bearing repair services to our clients based all over the world. The bearings are custom cleared and collected, brought to our factory for rebabbitting, and re-exported after repairs and rebabbitting in a short time.

White Metal Bearing Repair
Turbine White Metal Pad bearing Under Manufacturing

It is common for us to undertake the repair of alternator bearings, turbine, and engine bearings. All the bearings irrespective of whether new or repaired are thoroughly inspected and calibrated in-house by our experienced technicians.

The bearings are supported with a metallurgical report giving the details of the material composition of white metal. A dimensional report covering the critical dimensions is also shared.

White Metal Bearing Repair
Daihatsu Engine Bearing Ready for Dispatch
White Metal Bearings after Machining
White Metal Bearings after Machining

For more information, regarding white metal bearing repair, please email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Marine Engine Spares | Auxiliary Diesel Engine Spares | Cylinder Liners Repair

RA Power Solutions has been serving the marine, main engines, auxiliary engines, and high-capacity diesel generating sets installed all over the world. We undertake onsite crankshaft repair, engine block, cylinder heads, Cylinder Liners Repair, and all major spare parts.

The emergency repair services, overhaul, and routine maintenance of diesel engines are undertaken by us. These services are provided by our experienced technicians and engineers. The company is having experience of more than forty years of in this field.

Marine Engine and Diesel Engine Spare Part Supplier

Knowing the importance of marine spare parts every part is thoroughly inspected by our experienced engineers in our workshop which is equipped with all modern and calibrated measuring instruments and equipment.

The spare parts are sourced directly from the OEMs with whom we have a long-term cooperation. In fact, with our experience in the field of repair of engines and supply of spare parts, we can provide you the quality spare parts in a short time and at a low price. The spare parts of the most popular marine main and auxiliary engines, compressors, auxiliary diesel engine repairs purifiers, turbochargers, heat exchangers, repair of diesel engines, and pumps are available with us.

Quality: We are an ISO-certified company since the spare parts are directly procured from the original equipment makers. The high quality of the parts is guaranteed. In most cases, parts can be supplied in a short time of 1 to 10 days.

We deal in the following spare parts:

Valve box, special size under and oversize bearings, guide, piston crown, cylinder head, cylinder liners repair, pistons, bearing & rod Bush, Starting Valve, Skirt, Purifier, Pumps, connecting rods, crankshaft, camshaft, repair of diesel engine etc.

We deal in all makes and models of high-capacity engines. Some are listed below:

For Main Engine: AKASAKA, MITSUBISHI, HANSHIN, B&W and many more. Some makes are listed below

AKASAKA :
A-31. 34. 37. 38. 41
AH-25. 27. 28. 30. 33. 36. 38. 40
DH-38SS. 51SS
DM-28FD. 30. 46. 51SS
K-28. 31

MITSUBISHI :
UET-45/75C. 45/80D. 52/90C(D)
UEC-37/88. 37H-ⅡB. 45HA. 45/115H. 52HA. 52/105E. 52/125H
60HA. 60/150H. 37L(A). 45L(A). 52L(A). 60LA. 50LS(Ⅱ). 52LS(Ⅱ)60LS(Ⅱ)

HANSHIN :
EL-30. 32. 35. 38. 40. 44
ELS-35. 44
LH-28G
LU-24G. 26G. 28. 28G. 32. 35. 38. 40. 46. 46A. 50. 50A. 54. 54A
LUD-32. 32G. 35
LUN-28. 28AG. 28ARG
LUS-24. 28G. 38. 40. 46. 54. 58
LF-46. 50. 54. 58

B&W :
L-35MC. 50MC. 60MC. 70MC. 80MC. 90MC
S-35MC. 50MC. 60MC. 70MC. 80MC. 90MC

For Auxiliary Engine: B&W, YANMAR, NIIGATA, DAIHATSU, and many more. Some specific makes are listed below

B&W :
T23LH-4E, L16/24
L23/30, L23/30K, L23/30A
L23/30AK, L23/30H, L23/30HE
L28/32, L28/32V, L28/32A
L28/32H, S28LH-4E, V28/32A
V28/32H, L27/38
L32/40, V32/40

YANMAR :
3KL. 4KDL. 5KDL. 5KL. AL-(S.U)T(D),HT. CHL-HTN. G(A)L-(E.H.D.U)T. ST
HAL-(D.H)T(N). K(F)L-(H)T.U(T.F). LA(AL)-DT(N). LD(L)-(F). M(A)L-(H)T(S). DT
M200(A)L-(S.U.D)T. M200(A)L-(E.U)N. N165L-SN.N260L-EN. N280L-EN
R(A)L-(D.H)T. S165L-(U.E)T. S185L-(D.S.U)T. T220(A)L-(E.S.U)T. E240(A)L-(E.S.U)T
T260(L)-(S.U)T. U(A)L-(S.U)T. Z(L)-(D.E.S.U)T. Z280(L)-(E.S.U)T

DAIHATSU :
DK(B)-20. 26. 28. 30. 32
DL(B.N)-16. 19. 20. 22. 24. 26. 28. 32
DS(B)-18. 18A. 19A
DS(B.M)-22. 26. 26A. 28. 32. DSD-22. DV-22. 26. PKTB-14. 16. PKTD-16
PL-24. 26. PS(HT-B.C)-22. PS(HT-B.C.D)018D. 20D. 22D. 26D. 26E. 26H. 30D
VS(HT-B.C)-26D

NIIGATA :
L-123AHS. 16HS. 16S. 16X. 16XB. 16XC. 18CX. 19HX. 20AX. 25BX. 28EX. 31EZ. 40X
M(G)-16XA. 18CX. 20AX. 20CX. 22LX. 24GT. 25BX. 25CX. 25CV
26AFTE. 26KGHS. 28AFTE. 25BX. 28KGHS. 28X
31EZ. 31X. 34AFTE. 37X. 40X
V-32CLX

Quick Response: Years of experience and cooperation with the manufacturers facilitate us to meet the Client’s requirement in a short time.

One-Stop Service: Since we provide onsite services through our experienced technicians we have a team of dedicated engineers and technicians who can join the vessel on short notice and can undertake the replacement of spare parts. All our technicians carry Indian CDC and can sail with the equipment.

The author of this blog is Mr. Raj Shahani (Managing Director of the Company). He has forty years of experience in providing engine repair services all over the world and exporting spare parts for marine main and auxiliary engines, compressors, purifiers, turbochargers, heat exchangers, and pumps with a guarantee.

For more information on cylinder liners for pump, diesel engine cylinder liners, cylinder liner installation, compressor cylinder liners, or marine engine cylinder liners, please email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Special Size Engine Bearings | Undersize Marine Engine Bearings

Crankpin and Main Journal Engine Bearings

RA Power Solutions undertakes onsite repair of the crankshaft of main and auxiliary engines installed on vessels and high-capacity engines used for various applications. The crankshaft repair is undertaken by the use of specially designed portable, compact, and lightweight onsite crankshaft grinding machines which are designed, developed, and manufactured by RA Power Solutions.

It is obvious that after grinding of crankpin and main journal of the crankshaft there is a requirement for undersize bearings. It is generally observed that the undersize bearing for the crank pin and main journal of engines are not readily available to the manufacturers of Engines and their agents. RA Power Solutions maintains a large stock of undersize bearings for crankpins and the main journal of the main engine and auxiliary engines of all popular makes and models that are installed on the vessel.

Crankpin Bearings of Yanmar Diesel Engine Model No. 6N18L-DN
Crankpin Bearings of Yanmar Diesel Engine Model No. 6N18L-DN

The bearings are imported from Japan and Europe. The ready availability of bearings reduces the downtime of the engine. All the main journal and crankpin bearings supplied by RA Power Solutions are guaranteed satisfactory performance for 2500 hrs of operation or 12 months from the date of dispatch.

We maintain the stock of bearings for the following engines:

Wartsila , Daihatsu , MWM , Caterpillar , MaN , MaK , B&W , Sulzer , Bergen , Detroit Diesel , Stork Werkspoor , Pielstick , Deutz , Yanmar , MTU , Cummins , Nohab Polar , Caterpillar , Mitsubishi , Yanmar , MaK 551 , MaK 552 , MaK 453 , MaK 451 AK , MaK 452 AK , Deutz 540 , Deutz 358 , Deutz 350, Pielstick PC 2.2 PC 2.5, Wartsila 524 ,Wartsila 824 TS, Sulzer 6 AL 25/30, Sulzer 5 AL 25/30 MWM TBD 484, MaN 40/54 , MaN Sulzer 12 ASV 25/30 , Sulzer 16 ZV 40/48 , Deutz BV 16M 540 , B&W 6L 45 GFCA, MAN B&W 55/GF, CAT D353, B&W 5T23LH, Daihatsu 6 PST 26D, Daihatsu 6 PSHTb 26M, Mak 6MU 451 AK, Deutz 6M 628, Caterpillar 3512, Deutz BV 12M 628, MWM TBD 234, WICHMANN 5AX, SKL 8NVD 48A-2U, Pielstick PC 2.2 LNR, Caterpillar 3508 and more.

Manufacturing of White Metal Bearings
Manufacturing of White Metal Bearings

As a repairer of crankshafts having experience of more than forty years in this field, we have come across a situation where the crank pin or main journal diameter is to be reduced more than the last limits specified by the manufacturer. In this situation, the user has no option but to reject the crankshaft and purchase the new crankshaft, the cost of which is exorbitant and the procurement period is long.

Yanmar Diesel Engine Bearing having Diameter of 145 mm
Yanmar Diesel Engine Bearing has a Diameter of 145 mm
Undersize Bearings of Yanmar Diesel Engine Model No. 6N18L-DN
Undersize Bearings of Yanmar Diesel Engine Model No. 6N18L-DN

RA Power Solutions can manufacture and supply bearings of sizes that are beyond the manufacturer’s last undersize recommended in the maintenance manual. The supply of these special-size bearings like bearings for the Yanmar engine helps to save the crankshaft from rejection.

The grinding of the crankshaft, supply of special-size bearings, and commissioning of the engine are done under the same roof by RA Power Solutions and all the jobs are executed with guaranteed satisfactory performance.

For more information regarding bearings for the Yanmar engine, please email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Tri Metal Bearing | Rebabbitting of White Metal Bearing

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