Inner Bearing Cup For Hubs Single

The Inner Bearing Cup For Hubs Single (TIP2819) is a precision steel wheel bearing race engineered for Ti22 Sprint wheel hub assemblies. This component is essential for any mechanic or performance enthusiast rebuilding or servicing high-performance sprint wheels, go-kart applications, or street-strip vehicles where bearing integrity directly impacts wheel runout and handling stability. As the inner race that contacts rolling elements, this bearing cup must maintain tight tolerances to prevent excessive play and premature wear.

Manufactured from durable steel, this inner bearing cup functions as the load-carrying surface within the hub's bearing assembly, distributing radial and axial forces from the wheel to the spindle. The precise geometry of a bearing race is critical—even minor imperfections reduce contact patch efficiency and accelerate bearing degradation. At 0.25 lbs with compact dimensions of 3.4 x 0.85 x 4 inches, this single cup integrates seamlessly into Ti22's modular hub design. Proper installation requires careful seating and, when paired with the matching outer race and appropriate rolling elements, creates a smooth, low-friction rotating assembly that reduces drag and improves wheel response.

This inner bearing cup is ideal for rebuilding worn Ti22 Sprint wheel hubs on competition vehicles, oval-track racers, and high-performance street applications. Installation requires removing the old race (typically pressed or seated in the hub body) and pressing the new cup to the manufacturer's specification—a task best performed with a proper bearing press to ensure perpendicularity and avoid damage. Always replace bearing cups and races as matched sets to maintain runout consistency; combining old and new races will introduce play and vibration. Proper greasing and periodic inspection extend bearing life and maintain the precision handling characteristics that performance driving demands.