AP 0143500I Inner Cup L-68111 Tapered Roller Bearing Cup for 3500 lb Axles

The AP Products 0143500I is a replacement inner bearing cup (race) L-68111 designed for use on 3,500 lb trailer axles. This is the outer ring (cup) component of the L-68149/L-68111 tapered roller bearing assembly, which seats into the wheel hub to provide a precision raceway for the bearing cone.

Key Specifications:

• Bearing Cup Number: L-68111
• Matched Cone (Inner Bearing): L-68149
• Outside Diameter: 2.361 in (59.97 mm)
• Cup Width: 0.47 in (11.94 mm)
• Bore (ID): 1.378 in (34.99 mm)
• Material: Steel
• Row Configuration: Single Row
• Bearing Type: Tapered Roller Bearing Cup

About Tapered Roller Bearing Cups:

The L-68111 cup is the outer race component of a two-piece tapered roller bearing assembly. It works in conjunction with the L-68149 cone (inner race, rollers, and cage) to handle both radial and axial loads simultaneously. This design makes it well-suited for trailer wheel hub applications where heavy loads and reliable performance are required.

Installation Note: For maximum reliability and service life, the inner cup (L-68111) and inner cone bearing (L-68149) should always be replaced together as a matched set. Cross-reference numbers include LM68111 and 68111.