LM603049/11 (KOYO)

Description

​The LM603049/11 is a single-row tapered roller bearing assembly, comprising the LM603049 cone (inner ring) and the LM603011 cup (outer ring). This bearing is commonly utilized in automotive applications, including wheel hubs, differentials, and transmissions, as well as in various industrial machinery.​

🔧 Key Specifications

• Bore Diameter (d): 45.242 mm (1.7812″)

• Outer Diameter (D): 77.788 mm (3.0625″)

• Total Width (T): 19.842 mm (0.7812″)

• Cup Width (C): 15.08 mm

• Cone Width (B): 19.842 mm

• Minimum Fillet Radius (r): 3.6 mm

• Minimum Fillet Radius (r1): 0.8 mm​

⚙️ Performance Ratings

• Dynamic Load Rating (Cr): 71.7 kN

• Static Load Rating (C₀r): 73.5 kN

• Fatigue Load Limit (Cu): 10.7 kN

• Limiting Speed (Grease Lubrication): 4,900 RPM

• Limiting Speed (Oil Lubrication): 6,500 RPM​

🔁 Interchangeable Part Numbers

This bearing assembly is compatible with several other part numbers across different manufacturers:

• TIMKEN: SET37

• KOYO: K37

• SKF: LM603049/011/Q

• FAG: KLM603049.LM603011

• NTN: 4T-LM603049/11​

🚗 Common Applications

The LM603049/11 bearing is widely used in:​

• Automotive wheel hubs

• Differentials

• Transmissions

• Agricultural machinery

• Industrial equipment​