Engine Bearings
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- ACDelco®Genuine GM Parts™ Camshaft BearingGenuine 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$6.91 - $103.50
- Dura-Bond®Camshaft Bearing SetCamshaft 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
- Sealed Power®Camshaft BearingCamshaft 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$7.34 - $125.51
- Enginetech®Camshaft Bearing SetCamshaft 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 - $81.82
- Mopar®Camshaft BearingCamshaft Bearing 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 to meet the...Ideal solution to keep your vehicle in top shapeCrafted from premium-grade materials and the latest technology$0.64 - $60.40
- Genuine®Camshaft BearingCamshaft Bearing 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$24.75 - $59.77
- ITM Engine®Camshaft Bearing SetCamshaft 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 industry-leading...Designed with innovative manufacturing techniquesMade with maximum safety and reliability in mind$20.13 - $56.49
- DNJ Engine Components®Camshaft BearingCamshaft Bearing by DNJ Engine Components®. Protect your engine part from contaminants and prolong it's service life with this premium DNJ seal. Rigorously manufactured from top-grade materials and expertly tested, this reliable product...Designed to provide reliable sealing performanceProtects the engine part from contaminants and extends it's life$14.65 - $38.16
- Clevite®Camshaft BearingCamshaft 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$8.53 - $194.07
- Vaico®Camshaft BearingCamshaft Bearing by Vaico®. 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$271.53 - $273.88
- Dura-Bond®Camshaft Bearing & Auxiliary Shaft Bearing KitCamshaft Bearing & Auxiliary Shaft Bearing Kit 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....OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price$42.96 - $74.77
- Dura-Bond®Hi-Performance Camshaft Bearing SetHi-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
- Eurospare®Camshaft Bearing SetCamshaft Bearing Set by Eurospare®. 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$85.33
- King Engine Bearings®BB-Series Camshaft Bearing SetBB-Series Camshaft 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...High quality at an affordable priceExpertly made from premium materials$19.77 - $45.45
- King Engine Bearings®Camshaft BearingCamshaft Bearing by King Engine Bearings®. 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$30.09 - $190.28
- King Engine Bearings®Connecting Rod BearingConnecting Rod Bearing by King Engine Bearings®. 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$21.40 - $281.10
- King Engine Bearings®HPT-Series Camshaft Bearing SetHPT-Series Camshaft 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...High quality at an affordable priceExpertly made from premium materials$108.59 - $119.41
- Kolbenschmidt®Camshaft Bearing SetCamshaft Bearing Set by Kolbenschmidt®. Less Friction for More Dynamics. The performance and torque characteristics of advanced gasoline and diesel engines combined with the available installation space call for rod and crankshaft...Unique craftsmanship paired with advanced technologyDesigned to ensure a high level of reliability and security$11.91 - $51.48
- ACDelco®Genuine GM Parts™ Camshaft Bearing (12507946)Genuine GM Parts™ Camshaft Bearing (12507946) 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$35.97
- ACDelco®Genuine GM Parts™ Camshaft Bearing (19260879)Genuine GM Parts™ Camshaft Bearing (19260879) 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$34.32
- ACDelco®Genuine GM Parts™ Camshaft Bearing (97218210)Genuine GM Parts™ Camshaft Bearing (97218210) 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$6.91
- ACDelco®Genuine GM Parts™ Camshaft Bearing (97218211)Genuine GM Parts™ Camshaft Bearing (97218211) 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$12.52
- ACDelco®Genuine GM Parts™ Camshaft Bearing (97239518)Genuine GM Parts™ Camshaft Bearing (97239518) 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$45.78
- ACDelco®Genuine GM Parts™ Camshaft Bearing (14002525)Genuine GM Parts™ Camshaft Bearing (14002525) 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$17.70
- ACDelco®Genuine GM Parts™ Camshaft Bearing (12679049)Genuine GM Parts™ Camshaft Bearing (12679049) 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$57.42
- ACDelco®Genuine GM Parts™ Camshaft Bearing (19260878)Genuine GM Parts™ Camshaft Bearing (19260878) 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$34.81
- ACDelco®Genuine GM Parts™ Camshaft Bearing (19260874)Genuine GM Parts™ Camshaft Bearing (19260874) 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$34.32
- ACDelco®Genuine GM Parts™ Camshaft Bearing (19260876)Genuine GM Parts™ Camshaft Bearing (19260876) 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$34.32
- ACDelco®Genuine GM Parts™ Camshaft Bearing (19260875)Genuine GM Parts™ Camshaft Bearing (19260875) 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$34.32
- ACDelco®Genuine GM Parts™ Camshaft Bearing (19260877)Genuine GM Parts™ Camshaft Bearing (19260877) 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$34.32
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.
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Engine Assemblies
Motor Mounts
Engine Blocks
Valves & Valvetrain Parts
Pistons, Rings & Connecting Rods
Oil Filters
Serpentine Belts & Auxiliary Drive Belts
Valve Covers
Timing Gears, Chains & Covers
Engine Oil Pans, Drain Plugs & Dipsticks
Cylinder Heads
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Engine Pulleys
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Oil Pumps
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Oil Coolers
Camshafts
Crankshafts
Engine Management Systems
Harmonic Balancers
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Balance Shafts
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