Engine bearings for crankpin and main journal are manufactured by RA Power Solutions Pvt. Ltd. We also maintain stock of standard and undersized bearings in tri-metal and bimetal of popular make and model of engines.

 

After grinding the crankpin and main journal of crankshafts, undersize crankpin bearings and main journal bearings are required. It is observed that engine manufacturers most of the time do not have an inventory of undersized bearings, thus delaying the assembly and commissioning of the engine.

 

RA Power Solutions has undertaken the onsite grinding of crankshafts for the last 47+ years. We understand the importance of the ready availability of standard bearings, undersized bearings of tri-metal and bimetal, and bearings for popular engines and models that are available in stock. The following is the list of engines for which engine bearings are available.

MAN-B&W, Sulzer, Wartsila, Mak, Deutz, Pielstick, Mitsubishi, Daihatsu, Yanmar, Bergen, Niigata, Himsen, Allen, Stork, Fiat, MWM, Hanshin, Caterpillar, SKL, Ruston, Paxman, Crepelle, Mirrlees, Alco, ABC, Crepelle, Nohab etc.

RA Power Solutions stands guarantee for the satisfactory performance of engine bearings. The main journal bearings and crank pin bearings are priced lower than the industry, with immediate delivery.

We also have engine crankpin bearings for various engine models like Wärtsilä, MAN B&W, Yanmar, Daihatsu, MAK, and Caterpillar, with supply available in Greece, Nigeria, Turkey, Russia, Dubai, and South America worldwide.

Dubai remains our top priority market for crankpin bearing exports, given the high volume of vessel traffic through Jebel Ali and the Strait of Hormuz, where delays in bearing supply can directly affect sailing schedules.

Beyond the UAE, we regularly supply crankpin and tri-metal bearings worldwide, including Iraq, Iran, Italy, Oman, Saudi Arabia, Singapore, Russia, Qatar, Abu Dhabi, Sharjah, Ajman, Umm Al-Quwain, Fujairah, Bahrain, Gambia, Kuwait, and across the Caribbean, Southeast Asia, and Africa.

Our reach also extends to Canada, Australia, the UK, the US, Europe, and other major shipping and flag-registry hubs across Asia, the Pacific, and Latin America.

Wherever the vessel is registered or operating, we ensure OEM-spec bearings, complete certification, and export documentation are ready so customs clearance never holds up the sailing schedule.

For more information on main engine maintenance, marine engine spares, main bearing machining, Babbitt bearings suppliers, and marine engine spare parts, email us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

FAQs

1. What are marine engine bearings?

The bearings of a marine engine are precision parts located between the crankshaft, connecting rods, or housing of the engine. The main journal bearings and the crankpin bearings help support the crankshaft and allow it to rotate smoothly, decreasing friction and wear. They are usually available in tri-metal, bi-metal, and white metal combinations.

2. What are undersize marine engine bearings?

Undersized marine engine bearings are utilized when the crankpin or main journal of a crankshaft has been machined to remove such defects as scoring, ovality, taper, or wear. The bearing size is determined to ensure the correct bearing clearance, based on the final diameter of the crankshaft after grinding.

3. Which marine engine bearings are available for which marine engine makes?

Marine engine bearings are available for many common engine brands and models including MAN-B&W, Sulzer, Wartsila, MAK, Deutz, Pielstick, Mitsubishi, Daihatsu, Yanmar, Bergen, Niigata, Caterpillar, Ruston, Paxman, Mirrlees, Nohab, SKL, Fiat, MWM and others. Availability varies on engine model, bearing size and size needed.

4. Why should undersize bearings be accessible after crankshaft grinding?

After crankshaft grinding, the original standard-size bearing may no longer give the requisite clearance. Therefore, the suitable undersized bearing must be used for good assembly and reliable engine operation. Undersize bearings are also available for immediate replacement, which can save engine downtime and delays during overhaul.

5. Are marine engine bearings available in tri-metal and bi-metal construction?

Yes. According to the requirements of the engine manufacturer and the application, marine engine bearings can be made and supplied in either tri-metal or bi-metal construction. Depending on the dimensions required and bearing specifications, we can supply standard and undersized bearings for crankpins and main journals.