Stainless Steel Flanged Extended Inner Ring Miniature Ball Bearings

What Are Stainless Miniature Flanged Ball Bearings With Extended Inner Ring?
These are compact ball bearings featuring a flange on the outer ring and an extended inner ring that protrudes beyond one or both sides of the bearing. The flange facilitates precise axial positioning, while the extended inner ring simplifies mounting and allows for more secure fastening onto a shaft—especially useful in small-scale, high-precision environments.

Key Features

Extended Inner Ring: Provides additional support surface for shaft mounting, reducing the need for spacers or collars.
Corrosion Resistance: Made from stainless steel, these bearings resist rust, moisture, and chemical exposure.
Flanged Design: Ensures easy axial alignment and reduces axial movement under load.
Compact and Lightweight: Ideal for limited-space assemblies and weight-sensitive applications.
High Precision: Manufactured to tight tolerances for smooth rotation and accurate motion control.

Common Applications
Thanks to their specialized design, stainless miniature flanged ball bearings with extended inner rings are used in a wide range of applications, including:

Medical Equipment: Suitable for diagnostic tools, pumps, and surgical instruments that require compact, hygienic, and corrosion-resistant components.
Robotics and Automation: Used in joints, gear assemblies, and servos where precise movement and reliable mounting are essential.
Aerospace and Defense: Found in avionics, instruments, and other lightweight assemblies where vibration resistance and precision matter.
Laboratory Instruments: Ideal for centrifuges, analyzers, and other precision devices exposed to moisture or chemicals.
3D Printers and CNC Machines: Provides stability and accurate positioning in high-speed, vibration-prone environments.

Material and Design Options
Typically manufactured from AISI 440C stainless steel for superior wear and corrosion resistance. Options are available in open, shielded, or sealed configurations. The extended inner ring may come with or without set screws, depending on the shaft mounting requirements.

Benefits at a Glance

Secure shaft mounting without additional collars
Improved alignment and vibration resistance
Ideal for miniaturized systems exposed to harsh environments
Minimal maintenance and long service life

Conclusion
Stainless Miniature Flanged Ball Bearings With Extended Inner Ring provide a reliable, corrosion-resistant, and space-efficient solution for demanding applications. Their enhanced mounting capability and precise alignment make them a preferred choice for engineers working in compact, high-performance systems.