Timken RA012RRB Ball Insert Bearing with Spherical OD and Eccentric Locking Collar

The Timken RA012RRB is a wide inner ring ball insert bearing designed for industrial applications requiring reliable performance and easy installation. This bearing features a spherical outside diameter that accommodates initial shaft misalignment when paired with compatible housing units, making it ideal for a variety of mounting applications.

Key Features:

• 3/4-inch bore diameter with eccentric self-locking collar for secure, tool-free installation
• Spherical OD (1.85 inches) provides unrestricted initial alignment in corresponding housings
• Double rubber seal (land-riding R-seal) provides superior protection against contaminants and retains lubrication
• High-quality alloy steel construction with nylon cage for durability and fatigue resistance
• Dynamic load rating of 2,880 lbs and static load rating of 1,480 lbs
• Maximum operating speed of 5,220 RPM
• Non-relubricatable design for reduced maintenance
• Maximum temperature rating of 250°F

Technical Specifications:

• Bore: 0.750 inches (3/4")
• Outside Diameter: 1.85 inches (47mm)
• Width: 0.84 inches
• Inner Ring OD: 1.311 inches
• Series: RA-RRB
• Rolling Element: Single row ball bearing
• Mounting Method: Eccentric locking collar

The eccentric locking collar provides increasing locking force with use and eliminates the need for set screws that can damage the shaft. The hardened inner ring and ground seal land protect against abrasive wear and prolong seal integrity. Designed for straight shaft mounting with a slip fit, this bearing is part of Timken's extensive line of precision-engineered bearing solutions.