The Timken Company 6311-ZZ-C3 Deep Groove Ball Bearing

Description:

The Timken 6311-ZZ-C3 deep groove ball bearing is a shielded radial ball bearing designed to support radial and moderate axial loads in high-speed rotating equipment and electric motor systems. Commonly installed in electric motors, industrial pumps, gearboxes, conveyors, fans, compressors, and power transmission equipment where low-friction, reliable operation is required. Maintenance teams, OEMs, and system integrators use this bearing for equipment repairs, bearing replacements, retrofit projects, and preventive maintenance to improve machine reliability and extend service life.

Applications:

The Timken 6311-ZZ-C3 deep groove ball bearing is engineered for industrial applications requiring smooth operation, low vibration, and dependable performance at high operating speeds. Its double shielded design helps retain lubricant while protecting against contaminants, making it suitable for electric motors, industrial pumps, fans, compressors, conveyors, gearboxes, and other rotating machinery operating in demanding industrial environments.

Technical Specifications:

• Manufacturer Part Number (MPN): 6311-ZZ-C3
• Manufacturer: Timken
• Product Type: Deep Groove Ball Bearing
• Bearing Type: Standard Deep Groove Ball Bearing (DGBB)
• Closure Type: Double Shielded (ZZ)
• Internal Clearance: C3
• Bore Diameter (d): 55 mm
• Outside Diameter (D): 120 mm
• Width (B): 29 mm
• Dynamic Radial Load Rating (C1): 71,500 N
• Static Radial Load Rating (C0): 44,600 N
• Maximum Shaft Fillet Radius: 2.0 mm
• Limiting Speed (Grease): 6,700 rpm
• Limiting Speed (Oil): 10,000 rpm
• Cage Type: Two-Piece Riveted Steel Cage
• Lubrication: Polyrex™ EM Premium Grease
• Typical Applications: Electric motors, industrial pumps, gearboxes, conveyors, fans, compressors, power transmission systems

Common Replacements:

• SKF 6311-2Z/C3
• NTN 6311ZZ/C3
• NSK 6311ZZC3