81112 -TV INA cylindrical roller thrust bearing

INA 81112-TV Cylindrical Roller Thrust Bearing (Polyamide Cage)

The INA 81112-TV is a high-precision thrust bearing designed to accommodate heavy axial loads acting in a single direction. The unit consists of a cylindrical roller and cage assembly along with two washers: the shaft washer and the housing washer. The standout feature of this model is the glass-fiber reinforced polyamide 66 cage (TV). This design ensures excellent roller guidance, reduces the overall bearing weight, and provides quieter operation, which is critical for modern high-efficiency drive systems.

Application

• Machine Tools & Industrial Equipment: Axial support for spindles and rotary tables.
• Automation: Screw actuators and positioning mechanisms requiring high rigidity.
• Automotive Industry: Power transmission systems in work machinery and heavy vehicles.
• Energy Sector: Vertical shaft bearing support for generators and pumps.
• Mechanical Engineering: Industrial presses and high-pressure conveyor systems.

Technical Specification

• Manufacturer: INA (Schaeffler Group - Germany).
• Designation: 81112-TV.
• Dimensions: 60 mm (ID) × 85 mm (OD) × 17 mm (Total height).
• Cage Type: TV – Glass-fiber reinforced Polyamide 66.
• Load Type: Unidirectional axial loads only.
• Design: Separable (simplifies independent mounting of washers and the cage assembly).

Features and Benefits

• Superior Axial Rigidity: Linear roller contact minimizes deflection under load, ensuring machine precision.
• Advanced TV Cage: Polyamide offers lower friction, less heat generation, and extended lubricant life.
• Ease of Installation: The ability to mount components separately significantly simplifies maintenance and assembly.
• High Load Capacity: Far exceeds the performance of standard axial ball bearings of similar dimensions.
• SCHAEFFLER Quality: Manufactured to the rigorous standards of the German bearing industry leader.

Why Choose This Product

By choosing the INA 81112-TV bearing, you are investing in a premium product that combines traditional mechanical strength with modern material science. The polyamide cage makes the bearing lighter and quieter, directly improving the overall equipment performance. It is a reliable solution for projects where faultless operation under significant axial pressure is paramount.