Crankpin and Main Journal Engine Bearings Archives - Rebabbitting Bearing https://rebabbittingbearing.com/tag/crankpin-and-main-journal-engine-bearings/ Mon, 08 Sep 2025 08:00:19 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.1 https://rebabbittingbearing.com/wp-content/uploads/2025/07/cropped-logo-raps-32x32.png Crankpin and Main Journal Engine Bearings Archives - Rebabbitting Bearing https://rebabbittingbearing.com/tag/crankpin-and-main-journal-engine-bearings/ 32 32 Special Size Engine Bearings | Undersize Marine Engine Bearings https://rebabbittingbearing.com/special-size-engine-bearings-undersize-marine-engine-bearings-crankpin-and-main-journal-engine-bearings-ra-power-solutions/?utm_source=rss&utm_medium=rss&utm_campaign=special-size-engine-bearings-undersize-marine-engine-bearings-crankpin-and-main-journal-engine-bearings-ra-power-solutions https://rebabbittingbearing.com/special-size-engine-bearings-undersize-marine-engine-bearings-crankpin-and-main-journal-engine-bearings-ra-power-solutions/#respond Thu, 16 May 2019 08:33:53 +0000 http://rebabbittingbearing.com/blog/?p=540 RA Power Solutions undertakes on site repair of the crankshafts of main and auxiliary engines installed on vessels, as well as 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. After grinding the...

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]]> RA Power Solutions undertakes on site repair of the crankshafts of main and auxiliary engines installed on vessels, as well as 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.

After grinding the crankpin and main journal of the crankshaft, undersized bearings are required. Manufacturers and their agents often do not have these undersized bearings readily available. RA Power Solutions maintains a large stock of undersized bearings for crankpins and main journals. We supply bearings for main and auxiliary engines of all popular makes and models installed on vessels.

The bearings are imported from Japan and Europe. The ready availability of bearings reduces the downtime of the engine. RA Power Solutions supplies main journal and crankpin bearings with a guarantee of satisfactory performance for 2,500 hours of operation or 12 months from the date of dispatch.

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

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.

We have been repairing crankshafts for over forty-five years. In some cases, we encounter crankpins or main journals that require reducing the diameter beyond the manufacturer’s last specified limits. 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.

white metal bearings in Singapore
white metal bearings in Singapore

RA Power Solutions can manufacture and supply bearings of sizes that exceed the manufacturer’s last recommended undersized size in the maintenance manual. The supply of these special-size bearings, such as those for the Yanmar engine, helps save the crankshaft from rejection.

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.

FAQs:

1. Why do engines need undersize bearings after crankshaft grinding?

When we grind crankpins and main journals undersize to restore proper clearances, the engine requires undersize bearings.

2. Does RA Power Solutions stock undersize and special-size bearings?

Yes, they maintain a large inventory of undersize and special-size crankpin and main journal bearings for popular marine engine models.

3. Which engine makes do they support with special-size bearings?

They serve top brands like Wartsila, Daihatsu, MAN, Sulzer, Yanmar, MWM, Caterpillar, MTU, Cummins, and more.

4. Can RA Power Solutions exceed OEM undersize limits for crankshaft repair?

Yes, they manufacture special-size bearings beyond the last recommended undersize to save crankshafts from rejection.

What performance guarantee accompanies their special-size bearings?

All crankpin and main journal bearings come with a performance guarantee of 2,500 hours of operation or 12 months from dispatch.

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