The Timken Company 3MM9116WICRTA3330 Bearing

Description:

The Timken Fafnir 3MM9116WICR T A3330 super precision bearing is used in high-speed machine tool spindles and precision motion control systems to provide exceptional rotational accuracy, rigidity, and high-speed performance. Commonly installed in CNC machining centers, precision milling machines, grinding machines, turning centers, and aerospace manufacturing equipment requiring ultra-precise spindle bearings. Maintenance teams and system integrators use this bearing for spindle repairs, machine rebuilds, precision retrofits, and replacement of worn super precision bearings.

Applications:

The Timken Fafnir 3MM9116WICR T A3330 super precision bearing is commonly used in CNC machining centers, high-speed milling machines, grinding equipment, precision lathes, aerospace machining systems, and automated manufacturing equipment where low runout, high stiffness, and reliable high-speed spindle performance are essential.

Technical Specifications:

• Manufacturer: Timken Fafnir
• Model / Part number: 3MM9116WICR T A3330
• Product type: Super precision angular contact ball bearing
• Bearing series: 3MM9100WI (ISO 10 series)
• Bearing type: Single-row angular contact ball bearing
• Timken ISO designation: 7016E-T-P4S
• Bore diameter: 80 mm
• Outside diameter: 125 mm
• Width: 22 mm
• Contact angle: 15° (WI design)
• Precision class: ABEC 7 / ISO Class 4 (P4S)
• Cage material: Phenolic cage
• Design: Open bearing
• Mounting: Precision machine tool spindle applications
• Application environment: High-speed machine tools and precision industrial equipment

Common Replacements:

• SKF 7016 CD/P4A angular contact ball bearing
• NSK 7016CTYNSULP4 super precision bearing
• Schaeffler FAG B7016-E-T-P4S super precision bearing