Engine bearings – essential for smooth operation
Engine bearings are precision components that support the crankshaft and other rotating elements inside the engine. They ensure minimal friction, absorb mechanical loads, and help maintain alignment under high stress. Whether used in industrial machinery, marine engines or stationary power units, engine bearings play a vital role in durability and performance.
Choose from following:
BALL BEARING 17X52X17-2RS - 81934100100 suitable for MAN D engines
Ball Bearing 17x52x17-2RS for Efficient EnginesDiscover our ball bearing 17x52x17-2RS, marked with the comparison number 81934100100. This product offers reliable performance with a weight of only 0.16 kg. It is perfectly suitable for applications in various engines.Quality with OEM Replacement PartsAs an OEM replacement part, our ball bearing ensures the highest precision and is the ideal choice compared to aftermarket solutions. The component is compatible with MAN D engines and provides superior longevity and efficiency.
GROOVED BALL BEARING - 81934100099 suitable for MAN D engines
Reliable Grooved Ball Bearing for Your ApplicationsDiscover the grooved ball bearing with the comparison number 81934100099, manufactured as an OEM replacement part. This product impresses with its excellent design and is perfectly suited for use in marine and stationary applications. With a weight of 1.396 kg, it is the ideal bearing that operates reliably in high-performance engines.Optimal Performance for Compatible MAN D EnginesThe grooved ball bearing is compatible with MAN D engines and provides the necessary performance for demanding applications. Quality and durability are crucial, especially in critical operating environments. Our OEM replacement parts meet the highest standards and comply with the requirements of professional users.
GROOVED BALL BEARING - 81934100098 suitable for MAN D engines
Optimal Solution: Grooved Ball Bearing for Your EnginesDiscover the grooved ball bearing with the reference number 81934100098, an essential product for your motorized applications. This OEM replacement part has been specifically designed to meet the demands of engines and is particularly reliable. Weighing 0.24 kg, it is ideal for use in various applications and ensures efficient functionality.
GROOVED BALL BEARING - 81934100097 suitable for MAN D engines
Grooved Ball Bearing with Comparison Number 81934100097Discover our grooved ball bearing with the comparison number 81934100097, suitable for MAN D engines. This product belongs to the category of bearings and ensures smooth operation in your engine. Weighing only 0.03 kg, it offers excellent performance.OEM Replacement Parts for Reliable ApplicationsOur grooved ball bearing is an OEM replacement part that offers original equipment quality at competitive prices. These replacement parts are specifically designed for the demands of diesel and gas engines in marine and stationary applications. Rely on the quality of our products to secure the longevity of your engines.
GROOVED BALL BEARING - 81934100096 suitable for MAN D engines
Excellent Performance with Grooved Ball BearingDiscover our grooved ball bearing, comparison number 81934100096, which has been specifically designed to deliver top performance. This product weighs 1.81 kg and is an ideal choice for your engine needs. You can rely on the quality of our OEM spare part, as it meets strict standards.OEM Spare Parts Suitable for MAN D EnginesOur grooved ball bearing is suitable for MAN D engines and contributes to the efficiency and longevity of your machines. The construction of this component is made from high-quality materials that support optimal functionality. With our product, you meet the requirements for robust and reliable spare parts for engines.
TAPERED ROLLER BEARING - 81934100092 suitable for MAN D engines
Precision with Tapered Roller BearingsDiscover our tapered roller bearing (comparison number: 81934100092), specially designed to ensure optimal operation. This product combines the requirements for engines in marine and stationary applications with its precise construction. Weighing 1.463 kg, it offers both robustness and efficiency.
GROOVED BALL BEARING - 81934100091 suitable for MAN D engines
Grooved ball bearing with reference number 81934100091The grooved ball bearing with the reference number 81934100091 is a premium quality OEM replacement part designed for maximum performance. This product impresses with its precise fit and is specifically tailored for MAN D engines used in demanding applications such as marine and stationary use. Weighing 1.25 kg, the grooved ball bearing provides both stability and efficiency.Quality and reliability of OEM replacement partsThe reference number 81934100091 identifies a grooved ball bearing that meets the highest manufacturing standards. Our range includes numerous products compatible with leading manufacturers such as MWM, Mercedes-Benz, Deutz, Volvo, MTU, Bosch, and Detroit Diesel. Each of our OEM replacement parts is designed to ensure the functionality and performance of your engines over the long term.
GROOVED BALL BEARING - 81934100087 suitable for MAN D engines
Grooved Ball Bearing Compatible with MAN D EnginesThe grooved ball bearing with the comparison number 81934100087 is an essential product specifically designed for engines used in marine and stationary applications. Weighing only 0.038 kg, this bearing impresses with reliable functionality and a long service life, required in challenging environments.Advantages of OEM Replacement Parts Our grooved ball bearings are OEM replacement parts that meet the high standards of the manufacturers. Compared to aftermarket solutions, OEM replacement parts ensure that quality and performance remain at the manufacturer's level. Trust in the reliability that only OEM replacement parts can offer.
CYLINDRICAL ROLLER BEARING - 81934100084 suitable for MAN D engines
Cylindrical roller bearing with comparison number 81934100084Discover the cylindrical roller bearing with the comparison number 81934100084 – an essential product suitable for MAN D engines. As part of the category bearings, this OEM replacement part offers top-notch quality that is crucial for the reliability of your engines. Weighing 0.95 kg, it ensures stability and durability for smooth operation.Suitable for MAN D enginesThe cylindrical roller bearing with the comparison number 81934100084 is suitable for MAN D engines and provides an ideal solution to ensure optimal operation. As an OEM replacement part, this product meets the highest standards and is particularly well-suited for use in marine applications as well as stationary operations.
GROOVED BALL BEARING - 81934100075 suitable for MAN D engines
Robust Performance: Grooved Ball Bearing in DetailThe grooved ball bearing with the comparative number 81934100075 is an essential spare part for your applications. This product belongs to the category Bearings and impresses with reliability and durability. Weighing 1.1 kg, the grooved ball bearing is ideally suited to ensure smooth operation of engines used in demanding environments.
BALL THRUST BEARING - 81934100072 suitable for MAN D engines
Ball Thrust Bearing for Industrial ApplicationsDiscover the Ball Thrust Bearing (comparison number: 81934100072), which is perfectly suited as an OEM replacement part to optimize the performance of your engines. This product plays a crucial role in the category of Bearings and impresses with outstanding quality and reliability. Weighing only 0.01 kg, the Ball Thrust Bearing is lightweight yet robust and durable, making it the ideal choice for demanding applications.
GROOVED BALL BEARING - 81934100070 suitable for MAN D engines
Grooved Ball Bearing with Comparison Number 81934100070Discover the grooved ball bearing with the comparison number 81934100070, a highly functional replacement part. This product impresses with its precise craftsmanship and is part of the product group "bearings". Weighing 0.81 kg, it is optimally suited for use in marine applications.Optimal Performance for Demanding EnginesThe use of OEM replacement parts signifies the quality that your engine requires. The grooved ball bearing is compatible with MAN D engines and ensures that your drive system operates smoothly. By choosing this high-quality OEM replacement part, you are assured of performance and durability.
CYLINDRICAL ROLLER BEARING - 81934100069 suitable for MAN D engines
Reliable Cylindrical Roller Bearing for Marine ApplicationsThe cylindrical roller bearing with the comparison number 81934100069 is the ideal choice if you are looking for a reliable OEM replacement part. Suitable for MAN D engines, this product delivers exceptional performance in demanding applications. This replacement part belongs to the category of bearings and ensures outstanding functionality for your engines.Optimal Performance of the Cylindrical Roller BearingWeighing 1.23 kg, our cylindrical roller bearing is made from high-quality materials that provide a long service life and stable performance. This OEM replacement part is characterized by the highest precision and meets the strict standards of the industry. Rely on quality that is crucial for the smooth operation of your engines.
GROOVED BALL BEARING - 81934100067 suitable for MAN D engines
Grooved ball bearing suitable for MAN D enginesThe grooved ball bearing with the comparison number 81934100067 is an essential OEM spare part that is optimally suited for MAN D engines. Weighing 1.05 kg, this product offers outstanding robustness and reliability. The precise workmanship ensures that it has a long service life, which is critical for applications in marine and stationary technology.Advantages of OEM spare partsThis grooved ball bearing is an OEM spare part, meaning it meets the highest standards of the manufacturer. Compared to aftermarket products, it offers unparalleled fit and functionality. Invest in quality and take advantage of the benefits that OEM spare parts provide compared to non-original components.
GROOVED BALL BEARING - 81934100066 suitable for MAN D engines
Grooved Ball Bearing Suitable for MAN D EnginesDiscover our grooved ball bearing (comparison number 81934100066), which is specifically designed to ensure top performance in diesel and gas engines. Weighing 0.623 kg, this product offers maximum stability and durability to create optimal operating conditions for your engines.
GROOVED BALL BEARING - 81934100065 suitable for MAN D engines
First-Class Performance for EnginesThe grooved ball bearing with the comparison number 81934100065 is a top-quality OEM replacement part specifically designed for the demands of engines. Weighing 0.365 kg and featuring an intricate design, this product ensures the reliability you need for the performance of your machines.Suitable for MAN D Engines – Precision MattersThis grooved ball bearing is suitable for MAN D engines and offers the perfect fit that comes with OEM replacement parts. Compared to aftermarket solutions, which often do not provide the same quality, our grooved ball bearing stands for superior performance and durability. Trust the parts to ensure the optimal function of your machines.
GROOVED BALL BEARING - 81934100064 suitable for MAN D engines
Robust Grooved Ball Bearing: Your Reliable Replacement PartDiscover the premium grooved ball bearing with the comparison number 81934100064, an essential product for optimizing the performance of your engines. Weighing 2.2 kg, this bearing combines durability with precise manufacturing, specifically designed for engines used in marine and stationary applications.Suitable for MAN D Engines: Quality and LongevityThis OEM replacement part is compatible with MAN D engines and stands for outstanding functionality. As a replacement part suitable for MAN D engines, it supports the seamless operation of your machines that are employed in demanding applications.
GROOVED BALL BEARING - 81934100062 suitable for MAN D engines
Robust Grooved Ball Bearing for Engines Discover our grooved ball bearing with the comparison number 81934100062. This product belongs to the category of bearings and is specifically suitable for MAN D engines. Weighing 0.79 kg, it offers the necessary robustness and durability that you need for use in demanding environments.OEM Spare Parts for Reliable Performance Our grooved ball bearing is an OEM spare part that meets the highest quality standards. This means it fits MAN D engines and fulfills the manufacturer’s requirements. With this comparison number 81934100062, you are investing in a spare part that perfectly suits your engine and ensures efficient performance.
GROOVED BALL BEARING - 81934100048 suitable for MAN D engines
Robust Grooved Ball Bearing for Motorized ApplicationsOur grooved ball bearing with the comparison number 81934100048 is the ideal choice for anyone looking for spare parts that are suitable for MAN D engines. This product belongs to the category "Bearings" and impresses with reliable performance in diesel and gas engines for marine as well as stationary applications.Reliable and Durable: Your OEM Spare PartWeighing only 0.34 kg, this grooved ball bearing not only offers excellent performance but is also an OEM spare part known for its durability. Our selection of OEM spare parts ensures that you receive only high-quality products for your applications, always suitable for MAN D engines.
BEARING - 81934100022 suitable for MAN D engines
First-Class Bearing for EnginesDiscover our bearing, listed under the comparison number 81934100022. This product is perfectly suited to optimize the performance of your engines. Weighing 2.13 kg, it offers the stability and security you desire.
BALL - 81934060035 suitable for MAN D engines
Ball 81934060035 for Your Engine ApplicationDiscover the ball with the comparison number 81934060035. This OEM replacement part belongs to the bearings category and is specifically designed to ensure precise functionality for engines. With this ball, you will optimize the performance of your devices.Reliable Compatibility with MAN DThis OEM replacement part is suitable for MAN D engines and promotes efficient engine performance. Rely on the quality associated with the comparison number 81934060035 to keep your engines in top condition.
BALL - 81934060034 suitable for MAN D engines
Top Quality: Ball as OEM Replacement PartDiscover the Ball, the quality product with the comparison number 81934060034, specifically suited as an OEM replacement part. This replacement part is characterized by its precise fit and is optimized for the performance requirements of engines in marine and stationary applications. Count on a product that meets the high standards of the manufacturer.
BALL - 81934060031 suitable for MAN D engines
Precision in Engine Technology: Ball BearingsDiscover our premium product, the Ball Bearings with the comparison number 81934060031, which is designed to fit MAN D engines. Weighing only 0.002 kg, this OEM replacement part brings the necessary precision to your diesel and gas engines. Rely on quality that is built for longevity.
CYLINDRICAL ROLLER BEARING - 81934040036 suitable for MAN D engines
Cylindrical Roller Bearing: Precise Technology for Marine ApplicationsDiscover our cylindrical roller bearing with the comparison number 81934040036, specifically designed to meet your requirements. As an indispensable replacement part, it belongs to the article group Bearings and provides you with the necessary quality for engines that need to be powerful. Weighing only 0.13 kg, the cylindrical roller bearing is efficient and lightweight, contributing to the optimal functionality of your machines.Suitable for MAN D: Quality that ConvincesThis product is suitable for MAN D engines, ensuring that your machines can operate smoothly under challenging conditions. The use of replacement parts is supported by quality and precision fit. Rely on our cylindrical roller bearing, which represents an excellent solution for your needs.
Function and benefits
An engine bearing serves as a smooth, low-friction surface between moving parts. It allows the crankshaft and connecting rods to rotate freely while maintaining precise clearance. High-quality motor bearings reduce wear, dampen vibrations and distribute engine loads evenly. The key benefits include:
- Reduced friction and heat in rotating assemblies
- Protection of crankshaft and connecting rods from wear
- Longer service life and improved engine reliability
In marine engines, marine bearings are specially designed to resist saltwater corrosion and operate under continuous heavy loads.
Types and applications
There are several types of engine bearings, including main bearings, rod bearings, camshaft bearings and thrust washers. Each has a specific function and must be matched precisely to the engine's design. Motor bearings are used in diesel and gas engines of all sizes – from locomotives to marine propulsion systems and industrial generators.
Marine bearings often feature additional coatings or use corrosion-resistant alloys to withstand harsh environments. Correct bearing selection and installation are crucial for preventing premature failure and avoiding costly engine repairs.
Materials and maintenance
Engine bearings are typically made of multi-layered materials such as steel, aluminum, copper-lead or tri-metal alloys. These materials combine strength with conformability and fatigue resistance. Proper lubrication is critical to prevent metal-to-metal contact and overheating.
We supply a wide range of engine bearings and matching components suitable for MTU, Deutz, MAN, Volvo Penta and MWM engines – with fast availability and OEM-quality for industrial and marine applications.
FAQ
What is an engine bearing?
An engine bearing is a precision part that supports rotating components like the crankshaft, allowing them to spin smoothly under load. It minimizes friction, controls motion and distributes force to protect critical engine parts.
How to replace engine bearings?
Replacing engine bearings typically requires engine disassembly. The crankshaft must be removed, old bearings extracted, and clearances measured precisely before installing new ones. Professional tools and technical knowledge are essential for a safe replacement.
Cost to replace engine bearings?
The cost to replace engine bearings varies depending on engine size, type, and labor. For industrial or marine engines, it can range from several hundred to several thousand euros, especially if crankshaft grinding or additional parts are required.
What are marine bearings?
Marine bearings are specially designed for use in ship engines and propulsion systems. They are built to handle constant load, vibration and corrosion caused by saltwater environments, and are essential for long-term marine engine reliability.