Company: King Engine Bearings
Click on a thumbnail to see the full-size image
Grave Digger Monster Truck Running On King HP Engine Bearings
Bi-metal, aluminum silicon alloy bearings feature 40 Vickers hardness that's ideal for high load, short duration monster truck races, claims the bearing manufacturer
One of the most influential and popular monster trucks of all time, Grave Digger, is now using HP bearings from King Engine Bearings, says the bearing company. Made of bi-metal, aluminum silicon alloy, King says their new HP bearings feature a 40 Vickers hardness that resists traditional overlay migration and extrusion making well-suited for the demands of high load, short duration race environments such as drag racing, tractor pulls and monster trucks.
Grave Digger puts HP Bearings to the test with its alcohol injected, 540ci Merlin engine that produces 1,465 maximum horsepower. At 10,400 lbs., Grave Digger makes 1,200 lbs. of torque and reaches a maximum rpm of 8,400.
While strong enough to solve the problems of overlay migration and extrusion in these highly loaded steel crankshaft blown engines, King says the .015" thick top layer in its HP line offers increased macro particle embedability and conformability that is also perfect for medium load, long duration circle track racing using cast iron crankshafts. Additionally, King says its HP bearings have a 450 degrees F heat threshold that affords greater protection against friction and overheating.
King manufactures a large selection of bearings engineered for specific applications. King says all its performance bearings feature greater rod bearing height that improves bearing to bore contact/heat transfer and reduces spin potential at high rpms, and its main bearings feature enlarged, chamfered oil holes and grooving. In addition, King says, most rod bearings are available with or without dowel holes. King says its bearings feature the closest wall tolerances in the industry (Bull's Eye Tolerance), with all shells matched to .0001". Main and rod bearings are narrowed for large radii crankshafts.
For more information on King HP bearings and the company's complete line of performance engine bearings, visit www.kingbearings.com