89309 -TV INA cylindrical roller thrust bearing

INA K89309-TV Cylindrical Roller and Cage Thrust Assembly (Reinforced Series)

The K89309-TV INA assembly is a precision rolling component consisting of a set of cylindrical rollers secured in a high-strength cage. Part of the 893 series, it is designed to handle extreme axial loads while maintaining a minimal cross-sectional height. The core feature is the glass-fiber reinforced polyamide 66 cage (TV), ensuring quiet operation, weight reduction, and superior sliding properties. Thanks to the linear contact of the rollers, the K89309-TV provides uncompromising axial rigidity for 45 mm shafts in demanding mechanical arrangements.

Application

• Machine Engineering: Precision support for machine tool spindles and high-pressure actuators.
• Automation & Robotics: Compact rotation axes and positioners requiring high axial stiffness.
• Automotive Industry: Gearboxes and power transmission systems in specialized vehicles.
• Energy Sector: Shaft support in industrial pumps and generators.
• Packaging Machinery: Cam mechanisms and guides subjected to high longitudinal forces.

Technical Specification

• Manufacturer: INA (Schaeffler Group - Germany).
• Designation: K89309-TV.
• Dimensions: 45 mm (ID) × 85 mm (OD) × 12 mm (Assembly height).
• Cage Type: TV – Glass-fiber reinforced Polyamide 66.
• Series: 893 (Heavy Duty – enhanced load capacity compared to 811/812 series).
• Compatibility: Works with shaft washers WS89309 and housing washers GS89309.

Features and Benefits

• Enhanced Load Capacity: The 893 series design allows for higher axial force handling than standard assemblies.
• Modern TV Cage: Polyamide ensures lower friction, leading to less heat generation and extended lubricant life.
• Extreme Compactness: A height of only 12 mm enables the design of very rigid systems in tight spaces.
• Design Flexibility: Can be used directly on hardened and ground machine surfaces or with dedicated INA washers.
• SCHAEFFLER Quality: Guaranteed highest manufacturing precision and extended fatigue life.

Why Choose This Product

By choosing the INA K89309-TV assembly, you are investing in the technology of a rolling leader. In applications where standard solutions fail to provide enough rigidity under pressure, the reinforced 893 series offers a solid foundation for reliability. The polyamide cage ensures smoother, quieter, and more energy-efficient operation, directly translating into process efficiency for your machinery.