King Bearings – Engine Bearing specialist

Компания King гордится уникальными современными производственными линиями и оборудованием, которое мы разрабатываем сами для максимального удовлетворения потребностей наших клиентов.

Специализируясь на производстве вкладышей, компания разрабатывает и использует новое программное обеспечение и производственные системы, обеспечивающие высокий уровень качества. Постоянные усилия по разработке и внедрению новых технологий приводит к увеличению точности и расширению диапазона размеров вкладышей и их характеристик. Производственные технологии компании King позволяют гибко и быстро осуществлять переналадку линий, что является необходимым для поддержки нашего широко ассортимента и размеров вкладышей. Это позволяет нам быстро отвечать на запросы рынка и увеличивать эффективность производства, при этом оставаясь конкурентоспособными среди лидирующих марок.

Производственный процесс компании King начинается с литья наших уникальных сплавов. Производственный процесс продолжается на автоматических производственных линиях вплоть до линии покрытий и затем завершается упаковкой готовой продукции и ее доставкой клиентам.Требования компании к качеству своей продукции и эффективности производства превышают общепринятые в отрасли стандарты.




Production IT 

King has developed a variety of production IT processes to manage manufacturing (MES) and quality (QMS). These procesess are fully computurized and have allowed us to improve the efficiency and accuracy of our production lines.

Our systems give us the flexibility to adjust bearing features and geometry to conform to each application’s specific requirements.

King production IT systems include:

Document control — Electronic document control approach ensures that the correct revision(s) are the only ones available. The systems automatically issues:  BOM (Bill Of Material) , Root Card, Control Plan, Product Drawings, etc.


Tool and gage management : KQMS™ indicates which gages throughout the facility are due for calibration. Because KQMS is an electronic system, related documentation such as gage prints, specifications and pictures are immediately available.

Integrated Measurements devices : measurement devices are directly connected to work stations and inspection inputs are automatically collected, directly from the inspection tools.

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SPC online – KQMS system with embedded SPC tracks production time and quantities, and can electronically flag operators when a process is due for inspection. In addition, because this is linked to our gage tracking/management system, gage calibration is scheduled by frequency of use rather than an arbitrarily specified time frame.





Проверка защиты – Подтверждение продуктов компании King

Подтверждение продуктов компании King Защита наших клиентов от подделок вкладышей очень важна для нас. Вот почему мы вкладываем средства в меры по защите, для того, чтобы наши клиенты были уверены, что продукты, которые они покупают, содержат подлинные компоненты компании King. 


 Проверка защиты Подтверждение продуктов компании King


Sticker code info

  1. Типы вкладышей:
  1. Количество пар в наборе
  2. Случайный код
  3. Состав материала
  4. Размеры/ диаметр
  5. i-King код для онлайн проверки и активации гарантии (появляется если потереть заднюю часть голограммы)
  6. Бар код

    To view the i-King tutorial video click here

  1. How King’s pMAX Black material can affect the journal surface?

    There is absolutely no effect or damage causes by Pmax Black to the journal surface.
    Pmax black bearings differ from the competitive bearings due to a special surface treatment of the overlay. The treatment produces a strong ultrathin (nano-scale) skin which inhibits formation of fatigue cracks. Therefore load capacity of Pmax black bearings is at least 17% greater than that in the competitive racing car bearings. Hardness of Pmax black overlay is also higher than that of the competitive overlays (by 24%).
    The value of hardness 18 HV in comparison to 11-14HV of competitors is still low enough to provide excellent anti-friction properties of the bearings (embedability, conformability and compatibility). For example hardness of aluminum alloy in bi-metal bearings is about 40HV.
    The extremely low (nano scale) thickness of the hardened surface layer of Pmax black bearings guarantees that the journal surface can not be damaged (scratched) during metal-to-metal contact. If direct friction occurs the surface shield wears off from the overlay surface producing no scratches on the steel surface.
    The effect of direct friction between tri-metal bearings (surface hardened and non-treated) and steel journals has been tested in King Test Rigs. The results proved total indifference in regards of the journal surface damage between the treated (Pmax black) and non-treated bearings.

  2. How much clearance should my bearings have?

    In order for bearings to maintain a stable oil film, which is vital to their life, there must be a perfect match with clearance size, oil viscosity, engine operating  temp, crank surface finish and geometrical alignments. General rule of thumb for determining oil clearance is .001 of clearance for every inch of shaft dia. Ex .001 x 2.00 shaft dia.  = .002 oil clearance.  For clearances smaller and larger than the rule of thumb ,refer to the factors listed below:

    Factors for tighter oil clearances:

    • Smaller journals
    • Lower viscosity oils
    • Surface finishes min 4 RA
    • Near perfect crank and engine block geometry
    • Higher engine operating temperature  due to decreased oil flow
    • Perfectly balanced cranks

    Factors for looser oil clearances:

    • Larger journals
    • Higher viscosity oils
    • Surface finishes rougher than 5 RA
    • Not so perfect crank and engine block geometry
    • Lower engine operating temp due to increased oil flow
    • Weaker housing bores causing distortion at high RPM’s

    Engine bearings should operate with the least amount of oil clearance as possible. Tighter oil clearances produce less peak loading on the bearings and the engine runs smoother with less vibration. Remember, you can mix bearing sizes offered by King to achieve desired oil clearances. Ex. Pair a STD half bearing with either a .001 or STDX half bearing to obtain your clearance. Read more about optimization of clearance

  3. When should I use HP or XP bearings?

    HP Bi Metal aluminum bearings are best suited for street/strip, all out drag racing, monster truck and medium loaded  circle track racing engines . HP’s have great embedability and conformablility characteristics  for absorbing  debris and conforming to crankshaft deflection. They also work very well with nodular stock type and steel crankshafts. The high silicon content in the aluminum alloy helps keep the ferrite cavities rounded off to prevent excessive bearing wear.

    XP pMax Black Tri-Metal bearings are best suited for very high loads for extended periods of time such as circle track, off shore boat, and off road racing. Their load rating is more than 2000 psi higher than the HP bearings and are compatible with all types of steel crankshafts.

  4. What is pMax Black?

    pMax Black is a unique tri-metal structure the has been developed to meet the ongoing demand for bearings with increased load capacity. As engines evolve and gain more power, engine bearings have to be able to handle the extra loading.

    pMax Black consists of three layers that come together to form the strongest tri-metal bearing in the industry with load capacity exceeding the competition by as much as 24%. King Racing’s new hardening technology modifies the overlay molecular structure and creates a fatigue resisting shield.

  5. What is the difference between intermediate load capacity and overlay load capacity in Tri-Metal bearings?

    Intermediate layer load capacity is the load capacity of the bronze second layer of tri-metal engine bearings. Overlay capacity is the load capacity of the top third layer of a tri-metal bearing like CP & XP. However, the fatigue life of the tri-metal bearing will be determined by the load capacity of the overlay.

  6. What is the King Racing line?

    King developed the King Racing line to improve engine bearing performance under extreme conditions. King Racing combines innovative research and development processes and rigorous lab tests with on-track trials conducted by selected racers. King’s Racing line combines sport compact and domestic race engine bearings with ground-breaking  geometrical and metallurgical features. To learn more visit King Racing website

  7. Does King have bearings that work with large fillet aftermarket crankshafts?

    Yes, in racing applications, King has narrowed bearings to clear large fillet aftermarket crankshafts. The letter N as part of the part number is an indication of this feature.

  8. Just how accurate are King’s bearing wall sizes?

    King’s Bulls Eye Tolerance is a production technology that combines highly accurate machining, overplating, and computerized wall thickness monitoring that adjusts the process on-the-spot. Bull’s Eye Tolerance™ outperforms the industry’s wall thickness tolerance, ensuring the least thickness variation shell-to-shell. The outcome: A new standard in bearing thickness consistency.. Better accuracy means less time fitting bearings to achieve desired oil clearances and less bearing sets on hand.

  9. How complete is the application coverage with King Bearings?

    King Engine Bearings has the widest range of applications and undersizes for automotive and light truck OE replacement bearings as well as  sport compact & domestic high performance racing bearings.

  10. Does King have bearings that work with crankshaft thrust and housing bore repairs?

    Yes, in limited applications, King offers its customers oversized thrust length and oversized housing bore bearings to do these repairs. Oversizes are listed in both the E-Catalog and the paper bound master catalog under each application section.

  11. What do I need to do to the bearing before I install in the housing?

    After removing the plastic film that surrounds the bearings, simply wash them with a solvent and wipe dry with a clean lint free cloth.  Make sure there is no debris on either the bearing steel back side or the bearing surface.  King bearings are spayed with light oil during manufacturing to prevent any corrosion during storage and transportation.  Do not attempt to use any abrasive  material on the bearing surfaces. Overlays and lining materials are softer layers that can be damaged reducing their thickness. King bearings installation guidline

  12. Does King have coated bearings?

    Yes, King has developed it own proprietary polymer coating for applications that need extra anti-friction properties due to low viscosity oils and very tight oil clearances. These coatings are also a requirement for low rpm start/stop engines. Read more about King surface treatments

    During 2016, King developed a new coating for race bearings called pMaxKote™. Read more about King Polymer bearings

  13. Does King produce any lead free bearings?

    Yes, King has developed both lead free bi-metal and lead free  tri-metal bearings to satisfy both OE and environmental demands.

  14. What is the highest load rated bearing that King has to offer?

    King makes a bearing material that is lead free and has a load capacity of over  18,000 psi . It has a sputter deposited  (PVD, Physical Vapor Disposition)  overlay that withstands very high loads from direct injection diesel  and turbo charged engines. This product has been tested and found to be the strongest bearing available. King’s lead free materials

  15. Does King make all of its products or do they get bearings from other sources?

    King Engine Bearings manufactures all of our half shell rod and main bearings.

    This is all done under one roof so the quality can be maintained to King’s high standards.

    In fact, King actually designs and manufactures its own machinery and equipment for  production of its products.  This way bearings can be made more efficiently and at lower costs. Read about King self designed production line

Leads The Way in Technology
As a technological leader and OEM development partner, King is committed to being at the leading edge of bearing technology to meet our customers’ needs all over the world.

To maintain our position as the leading developer of engine bearings, King established our TechLab. This research and development unit is constantly monitoring market changes to transform the future of bearings by formulating new bearing designs and materials. King’s R&D department utilizes advanced ENSIM™ software to analyze and simulate variable bearing conditions using a wide range of equipment. This system allows us to create and test all new bearing designs and determine the optimal configuration for that application. King is also able to analyze engines after real-world use to improve bearing designs. We then leverage this information by applying the data to our aftermarket bearing designs.

The King TechLab’s Latest Innovations:

pMAX Black™- Metal Structure: A unique tri-metal structure for race engines, the pMax Black™ overlay is strengthened by a proprietary nano-scaled hardening process that modifies the molecular structure and creates a black fatigue-resistant shield. The result is a significant 24% increase in hardness and load capacity, reaching 18.1HV and maximum fatigue resistance of 10,200 psi.


Silver based sputter replacement: A lead free silver based overlay material containing solid lubricant additives distributed throughout the silver matrix. For extreme load engines. To read more about King lead-free materials

silver small


King’s TechLab has developed unique geometric features such as:

ElliptiX™-  a newly designed oil slot/oil hole hybrid that improves oil ingress

U-Groove™-  a 90 degree oil groove shape to increases bearing load capacity by expanding the surface area and more.


Dmitri Kopeliovich

Dr. Dmitri Kopeliovich

Research & Development Director of King Engine Bearings Ltd.

World leading expert in design, technology and materials for engine bearings. Founder of SubsTech (Substances & Technologies) – leading professional web site on Materials Science and Engineering. Author of numerous scientific and engineering publications and patents.

R&D процесс

Будучи ведущей в технологии и являясь разработчиком изделий для первичного рынка, компания King стремится занимать лидирующие позиции в индустрии производства вкладышей для удовлетворения потребностей покупателей во всем мире.

Чтобы сохранить лидирующие позиции в разработке вкладышей для двигателей, компания King создала отдел ТехЛаб. Он отвечает за исследования и разработки, постоянно следит за изменениями на рынке для того, чтобы создать новые дизайны и новые материалы для вкладышей, потребующихся в будущем. ТехЛаб использует новейшее программное обеспечение ENSIMTM с целью анализа и моделирования изменяющихся условий работы вкладышей для широкого спектра двигателей. Данная система позволяет нам создавать
и испытывать новые дизайны вкладышей и определять оптимальную конфигурацию для их применения. Компания King также может анализировать
существующие и функционирующие на практике двигатели с целью улучшения дизайна вкладышей. Мы также используем полученную информацию для
разработки вкладышей для вторичного рынка.


В мире гоночного спорта низкие эксплуатационные характеристики вкладышей и их выход из строя могут привести к поражению в гонке. Вот почему ведущие гоночные команды по всему миру полагаются на надежность и высокое качество каждого вкладыша компании King .

Наши XP и HP вкладыши постоянно испытываются и проверяются на треках, в экстремальных условиях, в повседневной жизни. Компания King, обладая разработками уникальных материалов и геометрических особенностей вкладышей, способна удовлетворять постоянно изменяющиеся и бросающие вызов потребности гоночной индустрии, что свидетельствет о высоком качестве и надежности наших подшипников и усиливают нашу решимость в создании все более совершенных изделий для гоночных автомобилей.

The King Racing line contains Sport Compact and Domestic engine bearings. Equipped with advanced materials and construction techniques, King Racing bearings extend the limits of power, performance and durability. Visit the King Racing website.


By analyzing the specific needs of race engines, we have developed unique  features including:pMAX Black™- metal construction, U-Groove™, ExcentriX™, ElliptiX™ and RadiaLock™.

Learn more about King race bearings features in the following video:

As a technological leader and an OEM development partner, King is committed to staying at the leading edge of bearing technology to meet our customer’s worldwide needs.

King provides solutions for manufacturers of automotive, light-duty & heavy-duty as well as the aviation industry.

  • Advanced R&D software and analysis expertise
  • Innovative production technology
  • Superior materials
  • Experienced engineers and technical team


Tomorrow’s Bearings for Today’s Engines

King’s products are engineered for the aftermarket. That’s why we offer a wider range of undersizes and various material options in the King lineup.

King is the first choice in the extremely demanding aviation and racing industries due to our in-depth understanding of the specific needs of those industries. This knowledge and experience is then applied to every aftermarket bearing we make.

King Bull’s Eye Tolerance™ Technology

Bull’s Eye Tolerance™ is a production technology developed by King. It combines highly accurate machining, overplating, and computerized wall thickness monitoring that adjusts the process on-the-spot. This state of the art production technology sets new standards in our aftermarket bearing thickness consistency. Bull’s Eye Tolerance™ outperforms the industry’s wall thickness tolerance, ensuring the least thickness variation shell-to-shell. The outcome: A new standard in bearing thickness consistency.

When it comes to aftermarket bearings there is only one King!


click for catalog

bearing 157

We are bearing specialists. King Engine Bearings was founded in 1960 with one simple objective: to supply the highest quality bearings available in the marketplace. By specializing in engine bearings, King has built an extensive product offering that includes a wide range of engine bearings for automobiles, light duty and heavy duty trucks, marine, aviation, standby power and many other types of internal combustion engines. Every King bearing utilizes the highest quality materials and the most advanced designs to ensure complete customer satisfaction.