Crankpin Bearings and Main Journal Bearings of MAK, MAN, YANMAR, and DAIHATSU bearings of standard and undersize stock is maintained by RA Power Solutions Pvt. Ltd.

RA Power Solutions, over 47 years of experience in onsite grinding of crankshafts, understands the importance of the availability of standard, undersized crankpins and main journal bearings. In most cases, it is experienced by us that while standard-size bearings are available, the delivery of undersize crankpin and Main Journal bearings is long. It is obvious that after the grinding of crankpins, the undersized bearings are required.

Ship owners cannot wait for the bearings to arrive, as in most of the cases the delivery period of crankpin bearings and main journal bearings is 3-4 weeks. RA Power Solutions maintains a stock of undersized bearings, which are supplied to the clients.

We maintain a large stock of bearings; we are giving below the details of the most popular engines and their models, which have a high population of installations as auxiliary engines on vessels.

 

Sr. No.	Description
Yanmar Engine S 185L Standard Crankpin Diameter – 140 mm
1.	a) 0.80 mm Undersized Crankpin Bearing
	b) 1.20 mm Undersized Crankpin Bearing
	c) 1.60 mm Undersized Crankpin Bearing
	d) 2.00 mm Undersized Crankpin Bearing
Yanmar Engine 6N18AL-DN/DV Standard Crankpin Diameter – 145 mm
2.	a) 0.40 mm Undersized Crankpin Bearing
	b) 0.80 mm Undersized Crankpin Bearing
	c) 1.20 mm Undersized Crankpin Bearing
	d) 1.60 mm Undersized Crankpin Bearing
	e) 2.00 mm Undersized Crankpin Bearing
	f) 2.40 mm Undersized Crankpin Bearing
	g) 2.80 mm Undersized Crankpin Bearing
Daihatsu 6DL – 16 Standard Crankpin Diameter – 120 mm
3.	a) 2.50 mm Undersize Crankpin Bearing
	b) 3.00 mm Undersize Crankpin Bearing
	c) 4.00 mm Undersize Crankpin Bearing
Daihatsu 5DC-17 Standard Crankpin Diameter-145 mm
4.	a) 0.50 mm Undersized Crankpin Bearing
	b) 1.00 mm Undersized Crankpin Bearing
	c) 1.50 mm Undersized Crankpin Bearing
	d) 2.00 mm Undersized Crankpin Bearing
	e) 2.50 mm Undersize Crankpin Bearing
	f) 3.00 mm Undersize Crankpin Bearing
	g) 4.00 mm Undersize Crankpin Bearing
Daihatsu 5DK-20 Standard Crankpin Diameter-170mm
5.	a) 0.50 mm Undersized Crankpin Bearing
	b) 1.00 mm Undersized Crankpin Bearing
	c) 1.50 mm Undersized Crankpin Bearing
	d) 2.00 mm Undersized Crankpin Bearing
	e) 2.50 mm Undersize Crankpin Bearing
	f) 3.00 mm Undersize Crankpin Bearing
	g) 3.50 mm Undersize Crankpin Bearing
	h) 4.00 mm Undersize Crankpin Bearing
	i) 5.00 mm Undersize Crankpin Bearing
Daihatsu 8DKM-28 Standard Crankpin Diameter-235 mm
6.	a) 0.50 mm Undersized Crankpin Bearing
	b) 1.00 mm Undersized Crankpin Bearing
	c) 1.50 mm Undersized Crankpin Bearing
	d) 2.00 mm Undersized Crankpin Bearing
	e) 2.50 mm Undersize Crankpin Bearing
MAK 8M20 Standard Crankpin Diameter – 152 mm
7.	a) Standard Undersized Crankpin Bearing
	b) 1.00 mm Undersized Crankpin Bearing
	c) 1.50 mm Undersized Crankpin Bearing
	d) 2.00 mm Undersized Crankpin Bearing
MAN CME 5L 16/24 Standard Crankpin Diameter – 130 mm
8.	a) 0.50 mm Undersized Crankpin Bearing
	b) 1.00 mm Undersized Crankpin Bearing
	c) 1.50 mm Undersized Crankpin Bearing
	d) 2.00 mm Undersized Crankpin Bearing
	e) 2.50 mm Undersized Crankpin Bearing
MAN 6L 23/30H Standard Crankpin Diameter – 185 mm
9.	Key Position *12.5 x 15.5*
	a) 0.50 mm Undersized Crankpin Bearing
	b) 1.00 mm Undersized Crankpin Bearing
	c) 1.50 mm Undersized Crankpin Bearing
	Key Position *7.7 x 10.7*
	a) 0.50 mm Undersized Crankpin Bearing
	b) 1.00 mm Undersized Crankpin Bearing
	c) 1.50 mm Undersized Crankpin Bearing
MAN 9ASL 25/30 Standard Crankpin Diameter – 195 mm
10.	a) 2.50 mm Undersize Crankpin Bearing
	b) 3.00 mm Undersize Crankpin Bearing
	c) 4.00 mm Undersize Crankpin Bearing
Allen Engine PVBCS 12 F Standard Crankpin diameter – 190.45 mm to 190.47 mm
11.	a) 0.50 mm Undersized Crankpin Bearing
	b) 1.00 mm Undersized Crankpin Bearing
Gas Engine Deutz MWM TBG32V16 Standard Crankpin diameter 204.50 mm
12.	a) 0.50 mm Undersized Crankpin Bearing

 

Dispatch of Bearings All Over the World

We regularly supply engine bearings for crankpins, tri-metal bearings, engine tri-metal bearings, and bearings for all makes and models of engines like Yanmar, Daihatsu, MAK, MAN B&W, etc. We have special arrangements with DHL and FedEx couriers, bearings that can be delivered on the vessel in a short duration of time.

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, contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com or call us at +91-9582647131 or +91-9810012383.

 

FAQs

1. Do you have crankpin bearings for Daihatsu marine diesel engines?

Yes, we produce standard and undersized crankpin bearings for Daihatsu diesel engines. They are the 6DL-16, 5DC-17, 5DK-20, and 8DKM-28.

2. Do you have bearings for the crankpin for the Yanmar engine?

Yes, we have stocks for Yanmar S185L and 6N18AL-DN/DV engines.

3. Do you sell tri-metal crank pin bearings?

Tri-metal crankpin bearings are available in several undersizes to fit crankpin diameter.

4. Are the bearings delivered directly to the ships?

Yes, we can ship bearings anywhere in the world and even ship to ships if the logistics will allow.