81232 -M INA cylindrical roller thrust bearing

INA 81232-M Cylindrical Roller Thrust Bearing (Brass Cage)

The INA 81232-M is a heavy-duty mechanical component engineered to handle extreme axial loads in a single direction. The unit consists of a high-precision cylindrical roller and cage assembly paired with shaft and housing washers. The standout feature is the solid brass cage (M), which is roller-guided. Brass provides natural self-lubricating properties, excellent heat dissipation, and high resistance to shocks and vibrations, which is essential for bearings with large shaft diameters.

Application

• Heavy Machine Engineering: Rolling mills, hydraulic presses, and heavy-duty forging equipment.
• Energy Sector: Main bearings for vertical generators and hydroelectric turbines.
• Mining Industry: Rotary tables for drill rigs and drive units for heavy crushing machinery.
• Metalworking: Spindles for large vertical boring mills and lathes.
• Lifting Technology: Thrust support for crane hooks and heavy-duty slewing units.

Technical Specification

• Manufacturer: INA (Schaeffler Group - Germany).
• Designation: 81232-M.
• Dimensions: 160 mm (ID) × 225 mm (OD) × 51 mm (Total Height).
• Cage Type: M – Solid brass cage.
• Load Capacity: Extremely high static and dynamic axial load rating.
• Material: Heat-treated steel with exceptional metallurgical purity.

Features and Benefits

• Axial Rigidity: Linear contact of cylindrical rollers ensures minimal deflection even under peak loads.
• Premium Brass Cage (M): Extends service life under boundary lubrication conditions and reduces the risk of seizure.
• Separable Design: Allows for independent mounting of washers and the roller assembly, simplifying heavy machinery installation.
• Thermal Stability: High-grade materials ensure stable performance across a wide temperature range.
• SCHAEFFLER Reliability: Every component undergoes rigorous quality control to ensure years of trouble-free operation.

Why Choose This Product

Opting for the INA 81232-M bearing is an investment in uncompromising durability. In applications with a 160 mm shaft, failures are not an option – every downtime leads to massive losses. By featuring a solid brass cage, this bearing provides a safety margin that standard solutions simply cannot match. It is the foundation of efficiency for your heaviest industrial equipment.