ENDURO BEARINGS S3901 llu max - 440c stainless - double row (radial) - 12x24x10

Designed by Enduro Bearings, the S3901 LLU MAX is a high-performance stainless steel bearing crafted for mountain bike pivots and suspension components. Featuring a MAX-type design, it offers 35-40% higher load capacity than standard radial bearings by incorporating a full complement of balls in deeper race grooves for enhanced lateral support. This double-row, ABEC-3 bearing is constructed from durable 440C stainless steel with deep-groove races, Grade 10 balls, and full-contact, double-lip labyrinth seals (LLU) for maximum protection against dirt and moisture. Its design reduces suspension flex and increases contact area, making it ideal for pivot applications. The bearing is filled with 90% of high-pressure Almagard grease, ensuring smooth operation in demanding conditions. Available in various materials including high-carbon chromium steel, ceramic-hybrid, and XD-15, Enduro bearings are engineered for longevity and superior performance in mountain biking. Static load capacity is 1117 lbf (4.97 kN), with a weight of only 9.3 grams.