Product Introduction 3001500LE070 409906K King Pin Bearing is a dedicated thrust roller bearing built into the front axle knuckle assembly of HFCN721 light truck. It bears vertical axial load between axle housing and steering knuckle while minimizing sliding friction during steering movements. This aftermarket replacement bearing addresses stiff steering, slow steering wheel return and noticeable axial clearance caused by roller surface pitting, cage distortion and grease carbonization of original bearings. Reliable rotary support keeps steering maneuverability consistent and reduces wear on matched king pin and bushing sets for regional freight and urban delivery fleets.

Product Advantages Fabricated with premium roller bearing steel and precise heat treatment for outstanding pressure resistance. Compact roller layout distributes axial load evenly and avoids local stress concentration. Protective cage maintains roller alignment even under frequent impact. Each bearing undergoes axial clearance and rotation smoothness sampling test before shipment, matched dimension for convenient assembly during front axle overhaul.

Applicable Models Fit for HFCN721 series light commercial vehicles, widely adopted on light trucks with traditional king pin front axle steering structure.

FAQ

Q1: What will happen if the thrust bearing axial clearance is adjusted too small?
A1: Extra friction is generated, steering gets heavy and components heat up rapidly during cornering.
Q2: What lubricant works best for maintaining this king pin thrust bearing?
A1: Use high-temperature chassis grease that can withstand the working heat of the front axle.
Q3: Can muddy water splashing from the road penetrate the bearing contact surface?
A3: Without well-functioning oil seals, muddy contaminants will wash away grease and abrade rollers.