Crankpin and Main Journal Engine Bearings | South America

RA Power Solutions offers tri-metal engine bearings for the crankpin and main journal of crankshafts for marine and industrial engines.

We offer main and auxiliary engine crankshaft grinding, repair, and maintenance services on board vessels. Our services are also available for high-capacity engines in power plants worldwide.

Engine manufacturers generally carry standard-size bearings. However, it is often difficult to get the necessary small tri-metal bearings for crankpins and main journals after grinding the crankshaft. To meet this need, we offer a wide range of undersized bearings for various engine makes and models. 

Undersized crankpin bearings 

Undersized crankpin bearings

Crankpin Bearings For MAN & MAK Engines

White metal babbitt bearings

Undersized Bearings of Yanmar Diesel Engine

Requirement of Undersized Tri-Metal Bearings for Crankshaft

After grinding of the crankpin and main journal of the crankshaft, there is a requirement for undersized bearings, which are, in most cases, not readily available.

RA Power Solutions is the largest exporter of tri-metal bearings, mainly for diesel engines. We are listing below the names of a few popular engines and their models for which we maintain a ready stock of the bearings.

Sr No.	Description
Daihatsu 6DL-16 Standard Crankpin Diameter-120 mm
1	a) 2.50 mm Undersize Crankpin Bearing
	b) 3.00 mm Undersize Crankpin Bearing
	c) 4.00 mm Undersize Crankpin Bearing
MAN CME 5L 16/24 Standard Crankpin Diameter: 130 mm
2	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
Yanmar Engine S 185L Standard Crankpin Diameter-140 mm
3	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
4	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 5DC-17 Standard Crankpin Diameter-145mm
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) 4.00 mm Undersize Crankpin Bearing
MAK 8M20 Standard Crankpin Diameter: 152 mm
6	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
Daihatsu 5DK-20 Standard Crankpin Diameter-170mm
7	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
MAN 6L 23/30H Standard Crankpin Diameter: 185 mm
8	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
	d) 2.00 mm Undersized Crankpin Bearing
	e) 2.50 mm Undersized Crankpin Bearing
	f) 3.00 mm Undersized Crankpin Bearing
	g) 4.00 mm Undersized Crankpin Bearing
	h) 5.00 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
	d) 2.00 mm Undersized Crankpin Bearing
	e) 2.50 mm Undersized Crankpin Bearing
	f) 3.00 mm Undersized Crankpin Bearing
	g) 4.00 mm Undersized Crankpin Bearing
	h) 5.00 mm Undersized Crankpin Bearing
Allen Engine PVBCS 12 F Standard Crankpin diameter – 190.45 mm to 190.47 mm
9	a) 0.50 mm Undersized Crankpin Bearing
	b) 1.00 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
Gas Engine Deutz MWM TBG32V16 Standard Crankpin diameter 204.50 mm
11	a) 0.50 mm Undersized Crankpin Bearing
MAN 9L28/32 H Standard Crankpin Diameter-230 mm
12	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
Daihatsu 8DKM-28 Standard Crankpin Diameter-235 mm
13	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
Daihatsu 8DK-32 Standard Crankpin Diameter-250 mm
14	a) 0.50 mm Undersized Crankpin Bearing
	b) 1.00 mm Undersized Crankpin Bearing
	c) 1.50 mm Undersized Crankpin Bearing

Babbitt Bearings, White Metal

We also manufacture Babbitt white metal bearings, and we undertake the repair of old damaged bearings for alternators, intermediate shafts, turbines, pumps, etc.

Standard and Undersized Main Journal Bearings: Main journal bearings standard and undersized.

Main Journal Bearings Standard & Undersize

Diesel engine bearings supplier

Engine Bearing Manufacturers

R A Power Solutions not only sells bearings but also offers a full range of services on-site or in their facility, such as

• Grinding the crankshaft into place.

• Crankshaft repair and reconditioning

• Crankpins are ground and polished on-site.

• Repairing engine blocks and sewing metal.

• Emergency breakdown services globally.

• Repairs for marine and diesel engines

Our modern portable equipment and trained specialists allow us to provide onsite services without disassembling, assisting industries in lowering downtime and operational expenses.

We collaborate with clients all over the world, including major markets such as Saudi Arabia, the United Arab Emirates, Qatar, Kuwait, Oman, and Bahrain. We ensure that our service is rapid and dependable.

After crankshaft grinding, the undersized crankpin and main journal bearings are critical. R A Power Solutions ensures quick turnaround and dependable performance for all types of engines by keeping stock on hand and offering integrated repairs.

Contact us today for premium-quality bearings for Yanmar, Daihatsu, MAK, and MAN engines. Please email us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 / +91 9810012383.

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FAQs

1. What are undersized crankpin bearings?

Undersized crankpin bearings are those that are used once the crankpin is ground to a smaller size.

2. Do you provide tri-metal engine bearings?

Yes, RA Power Solutions provides tri-metal crankpin and main journal bearings in standard sizes and undersized sizes.

3. Which engine models do you supply bearings for?

We provide bearings for many engines, including MAN, MAK, Yanmar, Daihatsu, Deutz MWM, and many other diesel or gas engines.

4. Do you make white metal Babbitt bearings?

Yes, we manufacture and repair white metal Babbitt bearings for engines, turbines, pumps, alternators, and intermediate shafts.