NTN 6307 Single Row Deep Groove Radial Ball Bearing 35mm Bore Open

The NTN 6307 is a single row deep groove radial ball bearing designed for a wide range of industrial, automotive, powersports, and mechanical power transmission applications. With its deep groove geometry and precision-manufactured components, this bearing delivers reliable performance under both radial and combined radial/thrust load conditions.

Key Features:

• Deep groove geometry for efficient operation at high rotational speeds
• Single row design supports radial loads or a combination of radial and axial (thrust) loads
• Steel cage evenly spaces the ball elements to reduce friction, vibration, and noise
• Open bearing configuration allows for field lubrication in place
• CN (Normal) radial internal clearance for standard applications not subject to thermal expansion or atypical precision requirements
• Manufactured to ABEC 1 / Tolerance Class P0 precision standards

Specifications:

• Bore (Inner) Diameter: 35 mm (1.378 in)
• Outer Diameter: 80 mm (3.150 in)
• Width: 21 mm (0.827 in)
• Basic Dynamic Load Rating (C): 33.5 kN
• Basic Static Load Rating (C0): 19.1 kN
• Limiting Speed (Grease): 8,800 RPM
• Limiting Speed (Oil): 10,000 RPM
• Weight: 0.44 kg (0.97 lbs)

Cross-Reference Part Numbers: SKF 6307, NSK 6307, FAG 6307, Timken 307K, Koyo 6307, NACHI 6307, MRC 307S

Backed by NTN's legacy as one of the world's largest bearing manufacturers, the 6307 is a trusted solution for motors, pumps, gearboxes, agricultural equipment, and general industrial machinery.