81122 -TV INA cylindrical roller thrust bearing

INA 81122-TV Cylindrical Roller Thrust Bearing (With Polyamide Cage)

The INA 81122-TV is a precision rolling unit designed to accommodate heavy axial loads acting in a single direction. The assembly consists of three main components: the cylindrical roller and cage assembly and two washers (shaft and housing washers). The standout feature of this model is the glass-fiber reinforced Polyamide 66 cage (TV). This design ensures excellent roller guidance, weight reduction, and significantly quieter operation with lower friction compared to traditional steel cages.

Application

• Machine Engineering: Axial support for spindles in machine tools, presses, and vertical drills.
• Automation & Robotics: Compact turntables and joints requiring high axial rigidity on 110 mm shafts.
• Pump Technology: Shaft bearings for large vertical centrifugal pumps and compressors.
• Automotive Industry: Steering mechanisms, main transmissions, and heavy-duty drivetrain systems.
• Lifting Equipment: Crane hook rotation mechanisms, winches, and screw jacks.

Technical Specification

• Manufacturer: INA (Schaeffler Group - Germany).
• Designation: 81122-TV.
• Dimensions: 110 mm (ID) x 145 mm (OD) x 25 mm (Total height).
• Cage Type: TV – Glass-fiber reinforced Polyamide 66 (lightweight and quiet).
• Load Type: Unidirectional axial loads only.
• Design: Separable (allows independent mounting of washers and the cage assembly).

Features and Benefits

• High Axial Rigidity: Linear roller contact makes the bearing much more resistant to deflection than ball-bearing alternatives.
• Optimized TV Cage: Polyamide ensures lower frictional torque, resulting in less heat generation and energy savings.
• Compact Section Height: A height of only 25 mm enables the design of space-saving bearing arrangements with high load capacity.
• Ease of Installation: Independent mounting of shaft (WS) and housing (GS) washers simplifies technical fitting.
• SCHAEFFLER Quality: Manufacturing to strict standards guarantees a long fatigue life for the component.

Why Choose This Product

By choosing the INA 81122-TV bearing, you are opting for proven technology from an industry leader. In 110 mm shaft applications requiring high operational refinement and low component weight, the polyamide cage offers a significant advantage over steel solutions. This bearing combines the powerful load capacity of the 811 series with modern materials science, ensuring smooth motion and increased uptime for your machinery.