📐 Basic Dimensions:

  • Inner Diameter (d): 45 mm
  • Outer Diameter (D): 100 mm
  • Width (B): 27.25 mm

⚙️ Structure & Material Information:

  • Design Type: Single-row tapered roller bearing
  • Feature: Separable outer ring design for easy installation
  • Material: High carbon chromium bearing steel (GCr15)
  • Cage Material: Pressed steel
  • Precision Grade: ISO ABEC 1–ABEC 5
  • Clearance: Factory set

📦 Applications:
NSK 30309D is suitable for construction machinery, commercial trucks, gearboxes, differentials, and agricultural equipment requiring high radial and axial load capacity.

🧠 Expert Insight:
Engineered for durability and strength, the NSK 30309D withstands medium-to-heavy loads with stable rotation at varying speeds. It is ideal for rugged industrial environments that demand long life and mechanical precision.