Main Journal Bearings Archives - Rebabbitting Bearing https://rebabbittingbearing.com/tag/main-journal-bearings/ Mon, 13 Apr 2026 09:40:28 +0000 en-US hourly 1 https://wordpress.org/?v=7.0.2 https://rebabbittingbearing.com/wp-content/uploads/2025/07/cropped-logo-raps-32x32.png Main Journal Bearings Archives - Rebabbitting Bearing https://rebabbittingbearing.com/tag/main-journal-bearings/ 32 32 Engine Bearings For Crankpin and Main Journal https://rebabbittingbearing.com/engine-bearings-for-crankpin-and-main-journal/?utm_source=rss&utm_medium=rss&utm_campaign=engine-bearings-for-crankpin-and-main-journal https://rebabbittingbearing.com/engine-bearings-for-crankpin-and-main-journal/#respond Mon, 13 Apr 2026 09:14:46 +0000 https://rebabbittingbearing.com/?p=32063 Engine bearings manufactured from tri-metal for the crankpin and main journal of the crankshaft are supplied by RA Power Solutions. We provide crankshaft grinding services, repair, and overall maintenance of auxiliary and main engines installed on vessels. We also extend these services to high-capacity power plants spread all over the world. While standard-size bearings are...

The post Engine Bearings For Crankpin and Main Journal appeared first on Rebabbitting Bearing.

]]> Engine bearings manufactured from tri-metal for the crankpin and main journal of the crankshaft are supplied by RA Power Solutions.

We provide crankshaft grinding services, repair, and overall maintenance of auxiliary and main engines installed on vessels. We also extend these services to high-capacity power plants spread all over the world.

While standard-size bearings are readily available in stock with engine manufacturers, we have experienced that most of the time it is difficult to obtain tri-metal bearings for the crankpin and main journal of the crankshaft in undersized.

Crankpin Bearings for Engine Modals
Undersized crankpin bearings
Crankpin Bearings For MAN & MAK Engines
Crankpin Bearings For MAN & MAK Engines
Engine Crankpin Bearings
White metal babbitt bearings
Undersize Bearings of Yanmar Diesel Engine
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
2a) 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
3a) 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
4a) 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
6a) 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
8Key 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

White Metal Babbitt Bearings

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

Main Journal Bearings Standard & Undersize
Main Journal Bearings Standard & Undersize
Diesel engine bearings supplier
Engine Bearing Manufacturers
Engine Bearing Manufacturers
Crankpin Bearing Suppliers
Crankpin Bearing Suppliers

R A Power Solutions: Complete Services for Crankshafts and Engines

R A Power Solutions not only sells bearings but also offers a full range of services at your location or in their workshop, such as

  • Grinding the crankshaft in place
  • Crankshaft repair and reconditioning
  • Grinding and polishing of crankpins on site
  • Repairing engine blocks and stitching metal
  • Emergency breakdown services worldwide
  • Repair services for marine and diesel engines

Our advanced portable equipment and experienced technicians enable us to deliver onsite services without dismantling, helping industries reduce downtime and operational costs.

We work with clients all over the world, including big areas like Saudi Arabia, the United Arab Emirates, Qatar, Kuwait, Oman, and Bahrain. We make sure that our service is quick and dependable.

After crankshaft grinding, the undersized crankpin and main journal bearings are very important. With ready stock availability and integrated repair services, R A Power Solutions ensures quick turnaround and dependable performance for all types of engines.

For undersized crankpin and main journal bearing requirements, please email us at info@rapowersolutions.com or call +91-9582647131 or +91-9810012383.

The post Engine Bearings For Crankpin and Main Journal appeared first on Rebabbitting Bearing.

]]> https://rebabbittingbearing.com/engine-bearings-for-crankpin-and-main-journal/feed/ 0 Main Journal Bearings: Standard & Undersize https://rebabbittingbearing.com/main-journal-bearings-standard-undersize-bearing-manufacturer/?utm_source=rss&utm_medium=rss&utm_campaign=main-journal-bearings-standard-undersize-bearing-manufacturer https://rebabbittingbearing.com/main-journal-bearings-standard-undersize-bearing-manufacturer/#respond Tue, 22 Aug 2023 11:12:58 +0000 https://rebabbittingbearing.com/blog/?p=2668 RA Power Solutions is a leading engineering company providing onsite machining and grinding of the crankshaft of diesel engines, compressors, pumps, etc. The requirement of main journal bearings in the case of auxiliary engines and marine engines after grinding is obvious. Engine manufacturers often do not keep crankpin and main journal bearings of popular engine...

The post Main Journal Bearings: Standard & Undersize appeared first on Rebabbitting Bearing.

]]> RA Power Solutions is a leading engineering company providing onsite machining and grinding of the crankshaft of diesel engines, compressors, pumps, etc.

The requirement of main journal bearings in the case of auxiliary engines and marine engines after grinding is obvious. Engine manufacturers often do not keep crankpin and main journal bearings of popular engine models readily available in stock.

RA Power Solutions maintains the stock of standard/undersized crankpin bearings and main journal bearings for the reputed makes and models of engines like B&W, Daihatsu, Deutz, MAK, MAN, Yanmar, Sulzer, Compressor, CKD Skoda and Allen, etc.

Below is a sample list of crankpin and main journal bearings currently available in our stock.

Sr. NoDescriptionQty
1MAN CME 5L 16/24 Standard Crankpin Diameter- 130 mm
a) 0.5 mm Undersized Crankpin Bearing8 pairs
b) 1.0 mm Undersized Crankpin Bearing8 pairs
c) 1.5 mm Undersized Crankpin Bearing8 pairs
d) 2.0 mm Undersized Crankpin Bearing8 pairs
e) 2.5 mm Undersized Crankpin Bearing8 pairs
f) Main Journal Bearings8 pairs
2Daihatsu 5DK20 Standard Crankpin Diameter-170 mm
a) 0.5 mm Undersized Crankpin Bearing8 pairs
b) 1.0 mm Undersized Crankpin Bearing8 pairs
c) 1.5 mm Undersized Crankpin Bearing8 pairs
d) 2.0 mm Undersized Crankpin Bearing8 pairs
e) 2.5 mm undersize Crankpin Bearing16 pairs
f) Main Journal Bearings8 pairs
3Daihatsu 5DC17 Standard Crankpin Diameter-145 mm
a) 0.5 mm Undersized Crankpin Bearing14 pairs
b) 1.0 mm Undersized Crankpin Bearing8 pairs
c) 1.5 mm Undersized Crankpin Bearing8 pairs
d) 2.0 mm Undersized Crankpin Bearing8 pairs
e) 2.5 mm Undersized Crankpin Bearing8 pairs
f) 3.0 mm Undersized Crankpin Bearing8 pairs
g) Main Journal Bearings8 pairs
4Yanmar Engine 6N18AL-DN/DV Standard Crankpin Diameter-145 mm
a) 0.40 mm Undersized Crankpin Bearing14 pairs
b) 0.80 mm Undersized Crankpin Bearing8 pairs
c) 1.60 mm Undersized Crankpin Bearing8 pairs
d) 2.0 mm undersized Crankpin Bearing8 pairs
e) 1.20 mm undersized Crankpin Bearing8 pairs
5Yanmar Engine –S 185 L Standard Crankpin Diameter-140 mm
a) 0.8 mm Undersized Crankpin Bearing8 pairs
b) 1.2 mm Undersized Crankpin Bearing8 pairs
c) 1.60 mm Undersized Crankpin Bearing8 pairs
d) 2.0 mm Undersized Crankpin Bearing8 pairs
6MAN 9ASL 25/30 Standard Crankpin diameter-195 mm
a) 2.5 mm Undersized Crankpin Bearing8 pairs
b) 3.0 mm Undersized Crankpin Bearing8 pairs
c) 4.0 mm Undersized Crankpin Bearing6 pairs
7Allen Engine PVBCS12 F Standard Crankpin diameter – 190.40 mm
a) 0.5 mm Undersized Crankpin Bearing8 pairs
b) 1.0 mm Undersized Crankpin Bearing8 pairs
8Gas Engine Deutz MWM TBG32V16 Standard Crankpin diameter 204.50 mm
a) 0.5 mm Undersized Crankpin Bearing8 pairs
9Daihatsu Model 8DKM28 Standard Crankpin diameter-235 mm
a) 0.5 mm Undersized Crankpin Bearing8 pairs
b) 1.0 mm Undersized Crankpin Bearing8 pairs
c) 1.5 mm Undersized Crankpin Bearing8 pairs
d) 2.0 mm Undersized Crankpin Bearing8 pairs
e) 2.5 mm Undersized Crankpin Bearing8 pairs
f) Standard size Bearing8 pairs
10Daihatsu Model 6DL-16 Standard Crankpin diameter-120 mm
a) 2.0 mm Undersized Crankpin Bearing8 pairs
b) 2.5 mm Undersized Crankpin Bearing8 pairs
c) 3.0 mm Undersized Crankpin Bearing8 pairs
11MAK MODEL 8M20 Standard Crankpin diameter-152 mm
a) 2.0 mm Undersized Crankpin Bearing8 pairs
b) 2.5 mm Undersized Crankpin Bearing8 pairs
c) 3.0 mm Undersized Crankpin Bearing4 pairs
12MAN 6L 23/30H Standard Crankpin diameter-185 mm
a) 1.5 mm Undersized Crankpin Bearing8 pairs
b) 2.0 mm Undersized Crankpin Bearing8 pairs
c) 2.5 mm Undersized Crankpin Bearing8 pairs
13CKD Skoda 638A6S 2270 KVA Standard Crankpin diameter 280 mm
a) 0.5 mm Undersized Crankpin Bearing12 pairs
b) 1.0 mm Undersized Crankpin Bearing12 pairs
c) 1.5 mm Undersized Crankpin Bearing12 pairs
d) 2.0 mm undersized Crankpin Bearing12 pairs
14Cummins Model QSV 91G8 pairs
15Ariel Compressor JGH/4 stroke 4.5 inch
a) 0.5 mm Undersized Crankpin Bearing8 pairs
b) 1.0 mm Undersized Crankpin Bearing8 pairs
c) 1.5 mm Undersized Crankpin Bearing8 pairs
16Ariel Compressor JGH/4 stroke 4.5-inch Main Journal
a) standard size Main Journal Bearing 8 pairs

Bearing Manufacturer: RA Power Solutions

We proudly export Trimetal engine bearings and Babbitt white metal bearings to a wide range of countries across the Middle East, Caribbean, Asia, and Africa. We export to many countries, including Iraq, Iran, and the UAE (covering Dubai, Abu Dhabi, Sharjah, Ajman, Umm Al-Quwain, and Fujairah), as well as Oman, Saudi Arabia, Qatar, Bahrain, and Kuwait. In the Caribbean and surrounding regions, our exports reach nations such as Antigua and Barbuda, Belize, Dominica, the Dominican Republic, Grenada, Guyana, Haiti, Jamaica, Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, and Trinidad and Tobago. Additionally, we serve key Asian and African markets, including Malaysia, Indonesia, Madagascar, Vietnam, and South Korea, among others.

Discover precision and quality with RA Power Solutions – Your trusted bearing manufacturer! Elevate your machinery’s performance with our top-notch bearings. From custom designs to off-the-shelf solutions, we offer a comprehensive range to meet your specific needs. Boost productivity, reduce downtime, and enhance reliability. Explore our bearings today!

For more information on engine bearing manufacturers, please email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

white metal bearings
white metal bearings

FAQs

1. What are main journal bearings?

Main journal bearings are critical engine components that support the crankshaft and allow it to rotate smoothly within the engine block. They reduce friction and wear between moving metal parts in internal combustion engines.

2. What is the difference between standard and undersize bearings?

First, use standard bearings when the crankshaft and housing dimensions match the original factory specifications. However, when wear or damage requires crankshaft grinding, install undersize bearings, which are thicker and help restore proper operating clearances.

3. Can journal bearings be repaired or rebabbitted?

You can repair worn journal bearings through a process called rebabbitting, where you remove the old babbitt material and replace it with a new layer to restore the bearing to its original specifications and performance.

4. When should undersize journal bearings be used?

Undersize journal bearings are typically used after crankshaft regrinding, which reduces the journal diameter. These bearings compensate for the reduced size and help maintain correct oil clearance and engine performance.

5. What materials are used in manufacturing journal bearings?

Manufacturers commonly make journal bearings from babbitt metal, an alloy known for its excellent anti-friction properties. Other materials include copper-lead alloys, aluminum alloys, and composite materials, depending on the application.

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