Moog Ball Joint Specifications

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A high quality ball joint improves the safety and quality of an automobile’s steering system. Ball joints are a type of connection where a spherical bearing rotates within a socket; they are commonly used as an automotive part providing a pivot point between the wheels and the suspension. Moog is a brand owned by Federal Mogul, an American supplier of a wide variety of automotive products.

Identification

  • According to Federal Mogul, Moog ball joints are known for exceptional performance, strength and durability. They have a spherical steel bearing and socket enclosed in a steel casing; with hot and cold-forged ball studs and heat-treated ball-joint casings for high strength and wear resistance. Both upper and lower adjustable ball joints are available for passenger cars and light trucks; allowing for most caster/camber combinations and providing a convenient solution to the limitations of non-adjustable front suspension.

Performance

  • Moog ball joints use innovative materials and techniques to prevent abrasion and contamination of the joint, allowing for higher performance and a longer service life. High-quality polychloroprene and polyurethane boots protect the ball joint from dirt and temperature extremes. The boots are also fitted with grease relief valves to flush dirt out of the joint during servicing. According to Federal Mogul, the patented pressed-in cover plates in Moog ball joints increase steering control by reducing axial and radial deflection.

Maintenance

  • Moog’s “greased for life” sealed ball joints never need greasing, which eliminates service costs and extends the life of the joint. Polished ball studs and powdered-metal, grooved gusher bearings allow grease to flow through the bearing to the stud; providing a durable, smooth surface, reducing friction and resisting wear better than conventional ball joints. The strength and stability of the ball joint is increased by transferring the load to the joint housing and by using polymer bearings to reduce internal friction by 66 percent.

Signs of Wear

  • Though Moog ball joints do not need greasing, they can dry out and rust if their seal is broken, and eventually the ball will not fit snugly in the socket. Signs that ball joints may be worn out or loose and need to be repaired or replaced include uneven tire wear from a loose alignment, and cupped tires from incorrect camber. Replace ball joints when they have worn beyond the manufacturer’s limits for safe operation.

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References

  • Photo Credit antique steering image by John Sfondilias from Fotolia.com
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