Engine Bearings

Engine Bearings

  • Dura-Bond® - Camshaft Bearing Set
    Dura-Bond®Camshaft Bearing Set
    0
    # sp133453
    Camshaft Bearing Set by Dura-Bond®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading...
    OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
    $5.75 - $170.05
  • DNJ Engine Components® - Connecting Rod Bearing
    DNJ Engine Components®Connecting Rod Bearing
    0
    # sp133822
    Connecting Rod Bearing by DNJ Engine Components®. If you crave for the finest replacement for your worn out parts, look no further than this superior bearing set that is built with the same quality and durability as your OE parts. It is...
    Designed to provide reliable performance within your vehicle's engineMade from top-grade materials with utmost care to ensure long-lasting service
    $12.36 - $77.38
  • Sealed Power® - Connecting Rod Bearing
    Sealed Power®Connecting Rod Bearing
    1
    # sp124620
    Connecting Rod Bearing by Sealed Power®. Designed utilizing the latest technology, this product by Sealed Power features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured...
    A-Series bi-metal aluminum alloyGreater seizure resistance than tri-metal material
    $3.59 - $234.38
  • Enginetech® - Connecting Rod Bearing Set
    Enginetech®Connecting Rod Bearing Set
    0
    # sp159729
    Connecting Rod Bearing Set by Enginetech®. Offers a line of premium connecting rods for those applications that typically suffer from a broken, cracked or missing rod. These are all remanufactured rods we sell on an outlet basis, no...
    Rigorously tested to withstand years of abuseDesigned with innovative manufacturing techniques
    $7.53 - $127.92
  • Enginetech® - Camshaft Bearing Set
    Enginetech®Camshaft Bearing Set
    0
    # sp159725
    Camshaft Bearing Set by Enginetech®. Quality camshaft bearings get the job done. Enginetech camshaft bearings are manufactured as a "Full Round" design. Bearings are produced from extruded steel tubes with a centrifugally cast Babbitt...
    Rigorously tested to withstand years of abuseDesigned with innovative manufacturing techniques
    $8.68 - $83.81
  • Enginetech® - Crankshaft Main Bearing
    Enginetech®Crankshaft Main Bearing
    2
    # sp185423
    Crankshaft Main Bearing by Enginetech®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed to provide a perfect...
    Rigorously tested to withstand years of abuseDesigned with innovative manufacturing techniques
    $12.51 - $194.72
  • DNJ Engine Components® - Crankshaft Main Bearing
    DNJ Engine Components®Crankshaft Main Bearing
    0
    # sp133823
    Crankshaft Main Bearing by DNJ Engine Components®. If you crave for the finest replacement for your worn out parts, look no further than this superior bearing set that is built with the same quality and durability as your OE parts. It...
    Designed to provide reliable performance within your vehicle's engineMade from top-grade materials with utmost care to ensure long-lasting service
    $19.23 - $95.92
  • ACDelco® - Genuine GM Parts™ Connecting Rod Bearing
    ACDelco®Genuine GM Parts™ Connecting Rod Bearing
    0
    # sp235318
    Genuine GM Parts™ Connecting Rod Bearing by ACDelco®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with customers in mind. It will meet...
    Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
    $4.94 - $99.48
  • Clevite® - Connecting Rod Bearing
    Clevite®Connecting Rod Bearing
    0
    # sp125130
    Connecting Rod Bearing by Clevite®. Enjoy superior performance by getting this premium-grade Sniper product that is throughly engineered to help take the performance of your fuel system to the next step delivering unprecedented levels...
    Made with the use of the highest quality materialsModern technology for uncompromising reliability
    $2.41 - $38.35
  • King Engine Bearings® - XP-Series Connecting Rod Bearing Set
    King Engine Bearings®XP-Series Connecting Rod Bearing Set
    0
    # sp86510
    XP-Series Connecting Rod Bearing Set by King Engine Bearings®. XP-Series is a unique tri-metal structure for race applications. The overlay is strengthened by a proprietary nano-scaled hardening process that modifies the molecular...
    The XP series is a line of bearings with advanced metallurgical and geometric technologies that meet extreme performance loadsDeveloped for all performance applications that use forged steel aftermarket crankshafts and produce high loads for extended periods
    $36.42 - $244.83
  • ACDelco® - Genuine GM Parts™ Crankshaft Main Bearing
    ACDelco®Genuine GM Parts™ Crankshaft Main Bearing
    0
    # sp235319
    Genuine GM Parts™ Crankshaft Main Bearing by ACDelco®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with customers in mind. It will meet...
    Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
    $4.40 - $162.56
  • Dura-Bond® - Hi-Performance Camshaft Bearing Set
    Dura-Bond®Hi-Performance Camshaft Bearing Set
    0
    # sp133892
    Hi-Performance Camshaft Bearing Set by Dura-Bond®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...
    Rigorously tested to withstand years of abuseHigh-grade materials for long-lasting durability
    $27.40 - $171.47
  • King Engine Bearings® - SM-Series Connecting Rod Bearing Set
    King Engine Bearings®SM-Series Connecting Rod Bearing Set
    0
    # sp185389
    SM-Series Connecting Rod Bearing Set by King Engine Bearings®. This King Engine Bearings product is professionally and meticulously designed to provide superior durability you are looking for. The company does not accept compromises...
    High quality at an affordable priceExpertly made from premium materials
    $21.26 - $96.47
  • ACL® - Race Series Main Bearing Set
    ACL®Race Series Main Bearing Set
    0
    # sp32639
    Race Series Main Bearing Set by ACL®. The ACL RACE Series performance engine bearing range of today has a strong pedigree in motorsport & traces its roots back to the 1960's with the manufacture of engine bearings for use in the world...
    High strength overlay plate with reduced thickness for improved fatigue propertiesHardened steel backs on all rod bearings to improve the support of the bearing lining and assist with bearing retention in the housing
    $9.85 - $232.42
  • Sealed Power® - A-Series Main Bearing
    Sealed Power®A-Series Main Bearing
    0
    # sp200760
    A-Series Main Bearing by Sealed Power®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed to provide a perfect...
    A-Series bi-metal aluminum alloyGreater seizure resistance than tri-metal material
    $18.35 - $221.79
  • Sealed Power® - Camshaft Bearing
    Sealed Power®Camshaft Bearing
    0
    # sp124619
    Camshaft Bearing by Sealed Power®. Designed utilizing the latest technology, this product by Sealed Power features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to...
    Direct replacementManufactured to strict engineering quality standards
    $7.13 - $148.39
  • Sealed Power® - Crankshaft Main Bearing
    Sealed Power®Crankshaft Main Bearing
    0
    # sp124621
    Crankshaft Main Bearing by Sealed Power®. Designed utilizing the latest technology, this product by Sealed Power features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...
    Direct replacementManufactured to strict engineering quality standards
    $39.05 - $373.26
  • Clevite® - Crankshaft Main Bearing Set
    Clevite®Crankshaft Main Bearing Set
    0
    # sp139240
    Crankshaft Main Bearing Set by Clevite®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed to provide a perfect...
    Expertly crafted from premium materialsDesigned to match rigorous quality standards
    $13.98 - $161.68
  • Clevite® - P Series Crankshaft Main Bearing Set
    Clevite®P Series Crankshaft Main Bearing Set
    0
    # sp131635
    P Series Crankshaft Main Bearing Set by Clevite®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed to provide a...
    Expertly crafted from premium materialsDesigned to match rigorous quality standards
    $21.84 - $242.08
  • ITM Engine® - Connecting Rod Bearing Set
    ITM Engine®Connecting Rod Bearing Set
    0
    # sp170955
    Connecting Rod Bearing Set by ITM Engine®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...
    Designed with innovative manufacturing techniquesMade with maximum safety and reliability in mind
    $14.06 - $91.42
  • ACL® - Race Series Connecting Rod Bearing
    ACL®Race Series Connecting Rod Bearing
    0
    # sp240501
    Race Series Connecting Rod Bearing by ACL®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed to provide a...
    Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
    $18.11 - $239.07
  • ACDelco® - Genuine GM Parts™ Camshaft Bearing
    ACDelco®Genuine GM Parts™ Camshaft Bearing
    0
    # sp235954
    Genuine GM Parts™ Camshaft Bearing by ACDelco®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with customers in mind. It will meet your...
    Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
    $7.94 - $95.76
  • King Engine Bearings® - SI-Series Main Bearing Set
    King Engine Bearings®SI-Series Main Bearing Set
    0
    # sp185388
    SI-Series Main Bearing Set by King Engine Bearings®. This King Engine Bearings product is professionally and meticulously designed to provide superior durability you are looking for. The company does not accept compromises when it is...
    High quality at an affordable priceExpertly made from premium materials
    $30.20 - $91.81
  • Glyco® - Connecting Rod Bearing
    Glyco®Connecting Rod Bearing
    0
    # sp168314
    Connecting Rod Bearing by Glyco®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed to provide a perfect fit for...
    OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
    $9.78 - $223.65
  • Glyco® - Crankshaft Main Bearing
    Glyco®Crankshaft Main Bearing
    0
    # sp135043
    Crankshaft Main Bearing by Glyco®. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before you waste your time and gas...
    OE quality fluids from top original equipment and aftermarket manufacturersThe finest quality at a great price
    $32.67 - $421.81
  • Taiho® - Crankshaft Main Bearing
    Taiho®Crankshaft Main Bearing
    0
    # sp176732
    Crankshaft Main Bearing by Taiho®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading...
    Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
    $29.57 - $79.93
  • Genuine® - Connecting Rod Bolt
    Genuine®Connecting Rod Bolt
    0
    # sp15584
    Connecting Rod Bolt by Genuine®. Genuine is here to give you the ultimate in quality and reliability at a cost you can afford. Designed utilizing the latest technologies and manufactured from premium materials using state-of-the-art...
    Made with precision and quality in mindDesigned to meet your specific needs
    $2.20 - $28.69
  • Mopar® - Crankshaft Main Bearing Set
    Mopar®Crankshaft Main Bearing Set
    0
    # sp202095
    Crankshaft Main Bearing Set by Mopar®. Want your prized possession to look and perform the way it was designed to? Then top-of-the-line Mopar automotive parts and accessories are for you. Made using the latest manufacturing technology...
    Ideal solution to keep your vehicle in top shapeCrafted from premium-grade materials and the latest technology
    $1.17 - $1,446.49
  • Clevite® - A Series Connecting Rod Bearing
    Clevite®A Series Connecting Rod Bearing
    0
    # sp160127
    A Series Connecting Rod Bearing by Clevite®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed to provide a...
    Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
    $3.23 - $96.53
  • Clevite® - Camshaft Bearing
    Clevite®Camshaft Bearing
    0
    # sp125129
    Camshaft Bearing by Clevite®. Enjoy superior performance by getting this premium-grade Sniper product that is throughly engineered to help take the performance of your fuel system to the next step delivering unprecedented levels of...
    Perfect for upgrading your fuel injection systemMade with the use of the highest quality materials
    $8.30 - $175.60




There are many different kinds of bearings used on automobiles, including ball and roller bearings, needle bearings, and tapered roller bearings, but the bearings that are commonly used inside the engine are called plain bearings. These bearings are either cylindrical or are made of two inserts that form an enclosure. Components like the crankshaft and camshaft rotate on plain bearings supported by a film of oil. Oil is supplied under pressure by the engine oil pump.

Bearing construction varies according to intended use: stock, high-performance, and racing, and there are too many variations for an in-depth discussion here. In general, there are bi-metal and tri-metal bearings. Both have the lining material applied to a rigid and supportive steel backing. Bi-metal bearings have an aluminum alloy lining. The alloy may be strengthened with other metals, and the latest alloys contain silicone, which significantly increases surface hardness. Aluminum alloys with silicone are highly resistant to seizure. Tri-metal bearings have an intermediate layer of copper bearing alloy and an overlay of lead-tin-copper alloy. They have the strength, fatigue resistance and embedability (the ability to embed hard particles like dirt and debris that would otherwise become lodged between the bearing and journal, causing wear to the journal) that is the right combination for many applications.

Bores in the cylinder block are precision machined to accept the engine bearings. The camshaft and balance shaft bearings are cylindrical and pressed into the bores. The main and connecting rod bearing bores are split, with the bottom half of the bore known as the cap. Main and connecting rod bearings are called inserts that fit into bearing “saddles” formed by the top half of the bores in the block and connecting rods, and the caps. Where required, bearings have oil holes that must align with oil passages in the block, and some may have oil grooves. The thrust main bearing is flanged where it contacts the crankshaft thrust surface. Bearing halves for the crankshaft and connecting rods have a certain amount of material that extends above the bore parting line when placed in the saddle, which is known as bearing “crush”. This ensures that the bearings will be fully seated in the bores when the caps are torqued to specification.

For optimal performance and long life, engine bearings must have the right amount of oil clearance. This clearance is the difference between the shaft diameter and the diameter of the installed bearing, and is typically between 0.001” and 0.0035”. Main and connecting rod bearing clearance can be checked with the crankshaft installed using Plastigage, but a more precise measurement can be achieved by measuring the journal diameter with a micrometer and the installed bearing diameter with a bore gauge, and subtracting the micrometer dimension from the bore gauge dimension. If the clearance is excessive and the crankshaft is worn, it can be ground undersize and the appropriate undersize bearings used. However, the main or connecting rod housing bores could also be larger than specifications, requiring the block to be aligned honed or the big ends of the connecting rods reconditioned.

Although there are some performance bi-metal bearings, most performance bearings are of tri-metal construction. Many performance bearings also come with a proprietary dry film coating to reduce friction, provide startup protection, and increase strength and heat resistance. In addition to superior materials, they also have design features better suited to high power output engines. The eccentricity of performance bearings are tailored to the engine block and connecting rod bore characteristics of performance engine components to help maintain proper oil clearance, and they have higher crush for improved bearing retention. Performance bearings may be narrower than stock or chamfered to allow for the larger fillet radiuses of performance crankshafts, and they may have enlarged oil holes and/or grooves to improve lubrication.

Featured Brands

Related Categories

Engine Bearings Reviews

4 reviews
5 of 5
Product Was As Described.
Product was as described.
Posted by Karen (Kenna, WV) / March 03, 20172000 Subaru Outback
CARiD FacebookCARiD TwitterCARiD YouTube ChannelCARiD PinterestCARiD Instagram
Inspiration Gallery
All manufacturer names, symbols, and descriptions, used in our images and text are used solely for identification purposes only. It is neither inferred nor implied that any item sold by CARiD.com is a product authorized by or in any way connected with any vehicle manufacturers displayed on this page.
CUSTOMER SERVICE
INFORMATION
CONTACTS