81222 -TV INA cylindrical roller thrust bearing

INA 81222-TV Cylindrical Roller Thrust Bearing (Heavy Series)

The INA 81222-TV is a high-performance thrust bearing designed to accommodate exceptionally heavy axial loads in a single direction. The unit consists of a cylindrical roller and cage assembly along with shaft and housing washers. This model features a glass-fiber reinforced polyamide 66 cage (TV), ensuring low rolling resistance, excellent vibration damping, and smooth operation. Due to the linear contact of the rolling elements, the 812 series offers extreme axial rigidity, essential for heavy-duty industrial machinery.

Application

• Heavy Machinery: Axial support for spindles in large machine tools and industrial presses.
• Automation & Robotics: Large-scale rotary tables and positioners under significant axial pressure.
• Mining Industry: Drive components in drilling rigs and crushing equipment.
• Energy Sector: Vertical shaft bearings for generators and massive industrial pumps.
• Logistics: Lifting mechanisms and high-tonnage conveyor systems.

Technical Specification

• Manufacturer: INA (Schaeffler Group - Germany).
• Designation: 81222-TV.
• Dimensions: 110 mm (ID) × 160 mm (OD) × 38 mm (Total height).
• Cage Type: TV – Glass-fiber reinforced Polyamide 66.
• Load Type: Unidirectional axial loads only.
• Design: Separable (simplifies independent mounting of individual components).

Features and Benefits

• Maximum Axial Rigidity: Linear roller contact ensures minimal deflection under full load, guaranteeing precision.
• Optimized TV Cage: Polyamide reduces friction and prevents overheating, extending lubricant life.
• High Load Capacity (812 Series): Provides greater pressure resistance than the thinner 811 series with the same bore size.
• Ease of Maintenance: Separable design allows for independent installation of washers and the assembly, shortening downtime.
• SCHAEFFLER Quality: Guaranteed highest steel purity and precision-engineered raceways.

Why Choose This Product

By choosing the INA 81222-TV bearing, you are investing in a premium product from a global leader – the Schaeffler Group. In applications with a 110 mm shaft where axial forces are substantial, the reinforced 812 series provides a safety margin that standard solutions cannot match. The polyamide cage ensures quieter and more energy-efficient operation, directly leading to lower operational costs and increased uptime for your machinery.