Precision Parts LM603049 Tapered Roller Bearing Cone Bore Bearings & Seals - 1.781

The Precision Parts LM603049 is a tapered roller bearing cone designed for demanding automotive, trailer, agricultural, and powersports applications. This is the cone (inner ring) assembly of a tapered roller bearing, engineered to handle combined radial and axial loads with precision and durability.

The LM603049 cone features a 1.7812-inch bore diameter and 0.781-inch cone width, making it a widely used industry-standard bearing number with broad compatibility across many manufacturers and applications. It is commonly paired with cup numbers LM603011, LM603012, or LM603014 depending on the specific application.

Key Features:

• Bearing Type: Tapered roller bearing cone (inner ring assembly)
• Bore Diameter (ID): 1.7812 in (45.242 mm)
• Cone Width: 0.781 in (19.84 mm)
• Outside Diameter: 2.913 in (74.0 mm)
• Cage Material: Pressed steel
• Ring Material: Grade 52100 alloy steel
• Temperature Range: -40°F to 250°F
• Number of Rows: Single row
• Compatible Cup Numbers: LM603011, LM603012, LM603014
• Cross Reference: Timken SET36 (when paired with LM603012 cup)

The LM603049 cone is a direct-fit replacement for OEM components across a wide range of equipment including automotive differentials, wheel hubs, trailer axles, and agricultural machinery. Its tapered roller design allows for precise preload and clearance adjustment, ensuring smooth operation and extended service life under heavy loads.