K81115 -TV INA cylindrical longitudinal assembly

INA K81115-TV Cylindrical Roller and Cage Thrust Assembly (With Polyamide Cage)

The INA K81115-TV assembly is a precision rolling component consisting of a set of cylindrical rollers secured in a robust cage. This solution is designed for applications where minimal axial height is a priority while handling heavy thrust loads. The standout feature is the glass-fiber reinforced Polyamide 66 cage (TV), which ensures excellent roller guidance, weight reduction, and significantly quieter operation with lower frictional torque compared to traditional steel cages.

Application

• CNC Machine Tools: Axial support for spindles and rotary tables requiring high rigidity.
• Automation & Robotics: Compact turntables and joints for industrial robots on 75 mm shafts.
• Machine Engineering: Shaft support in vertical centrifugal pumps and screw actuators.
• Transport Systems: Slewing mechanisms in conveyors and pallet turntables.
• Automotive Industry: Steering gears and auxiliary transmissions for heavy machinery.

Technical Specification

• Manufacturer: INA (Schaeffler Group - Germany).
• Designation: K81115-TV.
• Dimensions: 75 mm (ID) × 100 mm (OD) × 9 mm (Assembly height).
• Cage Type: TV – Glass-fiber reinforced Polyamide 66 (lightweight and quiet).
• Load Type: Unidirectional axial loads only.
• Compatibility: Works with shaft washers WS81115 and housing washers GS81115.

Features and Benefits

• High Axial Rigidity: Linear roller contact makes the assembly much more resistant to deflection under load than ball-bearing alternatives.
• Optimized TV Cage: Polyamide ensures lower frictional torque, resulting in less heat generation and energy savings.
• Minimal Section Height: A height of only 9 mm enables the design of space-saving bearing arrangements with high load capacity.
• Design Flexibility: Can be used directly on hardened machine surfaces or with dedicated INA washers.
• SCHAEFFLER Quality: Manufacturing to strict standards guarantees a long fatigue life for the component.

Why Choose This Product

By choosing the INA K81115-TV assembly, you are opting for proven technology from a global leader. In 75 mm shaft applications where every millimeter of space counts, this assembly offers the best performance-to-size ratio. The polyamide cage ensures smoother and quieter operation, enhancing the overall equipment refinement and reducing maintenance costs.