The 452-387 is a Piper OEM aircraft bearing used in mechanical assemblies to support controlled rotational or oscillating motion while reducing friction and wear between moving components. It is designed to carry radial and/or axial loads depending on its installation within the aircraft system.

In Piper aircraft applications, bearings such as the 452-387 are commonly used in flight control systems, landing gear assemblies, stabilizer linkages, and airframe pivot points, depending on aircraft model configuration. Its primary function is to ensure smooth, low-resistance movement while maintaining precise alignment under mechanical and aerodynamic loads.

The bearing typically consists of precision-engineered inner and outer races with rolling elements (such as balls or rollers), or in some cases a plain bearing design depending on application requirements. It is built to withstand vibration, cyclic loading, and environmental exposure typical in aviation operations.

Manufactured to Piper OEM specifications, the 452-387 is generally made from high-strength bearing steel or corrosion-resistant alloy materials, often with surface treatments that improve durability, reduce friction, and extend service life.

Because it is a critical mechanical component, its condition directly affects system performance. Wear, roughness, or excessive clearance can result in increased friction, reduced control precision, or mechanical instability and must be addressed during maintenance.

Key features include:

Piper 452-387 aircraft bearing (OEM component)
Supports rotational or oscillating motion in assemblies
Used in control systems, landing gear, and airframe joints (model dependent)
Reduces friction and mechanical wear
Precision rolling or plain bearing design
Material: high-strength bearing steel or corrosion-resistant alloy
Designed for vibration and cyclic load environments
Maintains alignment and smooth mechanical operation
Critical for structural and control system reliability
Direct replacement part per Piper IPC specifications