TORRINGTON IR 1216 OH Precision Ground Inner Ring | 12mm Bore | Heavy-Duty Needle Roller Bearing Race
The TORRINGTON IR 1216 OH is a high-precision, heavy-duty inner ring specifically designed to function as the inner raceway for caged or full complement needle roller bearings where the shaft itself cannot be hardened and ground. Manufactured from high-quality bearing steel (typically SAE 52100) and heat-treated to a minimum hardness of 60 HRC, this inner ring ensures optimal surface fatigue resistance and dimensional stability under extreme radial loads and high-speed operation. The precision ground running surface meets stringent specifications for roundness and straightness, minimizing friction and maximizing the life expectancy of the complete bearing assembly, making it critical for demanding industrial applications.
Leveraging the historical reliability of the TORRINGTON brand, the IR 1216 OH provides an exceptionally rigid and robust solution for powertrain components, hydraulic pumps, transmissions, and heavy-duty gearboxes. Its robust design contributes significantly to reduced downtime and lower total cost of ownership by allowing easier replacement of the raceway without requiring complex shaft refurbishment or replacement. The consistent quality control ensures full dimensional interchangeability with current and legacy equipment, offering seamless integration into existing maintenance programs for mission-critical industrial machinery.
Key Features
Manufactured from high carbon bearing steel for exceptional longevity.
Precision ground and super-finished raceway surface optimizes needle roller life and reduces friction.
Heat-treated to high hardness (60+ HRC) to resist surface fatigue and abrasive wear.
Provides a cost-effective alternative to hardening the shaft in demanding applications.
Designed for high-speed operation and severe radial load conditions.
Interchangeable with other leading manufacturers' metric needle roller bearing components.
