King's Guide: How to Choose the Best Material for Your Engine Bearings

King's Guide: How to Choose the Best Material for Your Engine Bearings
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King's Guide: How to Choose the Best Material for Your Engine Bearings

Choosing the right material for your engine bearings is crucial for optimal performance and durability. At King, we offer a variety of materials tailored to different applications, ensuring you find the perfect match for your engine's needs. Whether you require high-load endurance for drag racing or superior wear resistance for time attack racing, our comprehensive guide will help you understand the strengths of each material. Explore our expert recommendations to make the best choice for your engine's specific demands.

HP Series - Alecular™

Metal Structure: Bi-Metal Aluminum Silicon Alloy

Competition Type: For applications requiring a harder than Babbitt top layer to better resist extrusion & material migration (drag racing, monster truck, tractor pull). Also for all other applications using modular cast iron crankshafts.

Load Characteristics: High load/short duration or medium load/long duration

Melting Temperature: ■■■■■■■■■■■□

Load Capacity: ■■■■■■■■□□□□

Conformability/Embeddability: ■■■■■■■■□□□□

Anti-Seizure: ■■■■■■■■□□□□

Special Attributes: Designed for high loads for short durations

Selecting the right material for your engine bearings is essential for achieving peak performance and longevity.

XP Series - pMaxBlack™

Metal Structure: Tri-Metal Copper-Lead

Competition Type: Circle track drag racing, off-shore, and other applications using steel crankshafts.

Load Characteristics: High load/long duration

Melting Temperature: ■■■■■■■■■■■□

Load Capacity: ■■■■■■■■□□□□

Conformability/Embeddability: ■■■■■■■■■■■□

Anti-Seizure: ■■■■■■■■■■■□

Special Attributes: Designed for high loads for short durations


XPC Series - pMaxKote™

Metal Structure: Tri-Metal Copper-Lead, Coated

Competition Type: Circle track drag racing, off-shore, and other applications using steel crankshafts. Polymer Coated.

Load Characteristics: High load/long duration

Melting Temperature: ■■■■■■■■■■■□

Load Capacity: ■■■■■■■■□□□□

Conformability/Embeddability: ■■■■■■■■■■■□

Anti-Seizure: ■■■■■■■■■■■□

Special Attributes: pMaxKote™ polymer coating operates as a solid lubricant


GPC Series - Silver

Metal Structure: Tri-Metal Silver-Plating, Coated

Competition Type: Diesel Performance, Sprint Cars

Load Characteristics: Very high load/long duration

Melting Temperature: ■■■■■■■■■■■□

Load Capacity: ■■■■■■■■□□□□

Conformability/Embeddability: ■■■■■■■■□□□□

Anti-Seizure: ■■■■■■■■□□□□

Special Attributes: Lead-free copper, silver plating& polymer coating


TFC Series - Top Fuel

Metal Structure: Tri-Metal Strengthened Steel, Special Copper-Lead Coated

Competition Type: Top Fuel Dragster, Top Alcohol Dragster, Funny Car, Pro-Mod

Load Characteristics: Very high load/long duration

Melting Temperature: ■■■■■■■■■■■□

Load Capacity: ■■■■■■■■□□□□

Conformability/Embeddability: ■■■■■■■■■■■□

Anti-Seizure: ■■■■■■■■■■■□

Special Attributes: Contains special ductile bronze, extra thick babbitt & K-40 polymer


Selecting the right material for your engine bearings is essential for achieving peak performance and longevity. By understanding the unique benefits of each material, you can make an informed decision that aligns with your specific racing or driving needs. King Engine Bearings is dedicated to providing high-quality options tailored to various applications, ensuring that you have the best possible solution for your engine. 

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