Flanged Stepped Internal Thread Bushing

Core Features

Integrated Flange – A circular flange is formed at one end of the bushing, serving as a positive stop to control insertion depth and providing a load-bearing surface that distributes axial loads across the workpiece.

Stepped Internal Bore – The internal bore incorporates multiple stepped diameters along the bushing length, accommodating different shaft sizes, component interfaces, or providing internal locating shoulders for component positioning.

Internal Threaded Sections – Internal threads are incorporated in one or more sections of the bore, enabling component attachment through threaded engagement. Thread dimensions follow standard metric or imperial profiles.

Combined Functionality – The component combines spacing, alignment, and threaded fastening functions in a single configuration, reducing component count and assembly complexity.

Product Characteristics

The bushing is manufactured with a cylindrical outer profile and an integrated flange. The flange is formed at one end with specified diameter and thickness, providing a positive stop and bearing surface. The internal bore features multiple stepped diameters, with each step dimensioned to specific internal diameters and lengths. Internal threads are incorporated in specified bore sections.

Material composition is controlled to meet specified strength requirements. Carbon steel grades are available for general applications. Stainless steel grades are available for corrosion-resistant applications. Surface treatment options include zinc plating with various chromate finishes, nickel plating, black oxide, and other finishes based on application requirements.

Application Scenarios

Precision Alignment Systems – Applied in optical rail mounts and precision positioning systems where the bushing aligns components along a rail. The flange provides axial positioning, the stepped bore accommodates different component interfaces, and internal threads accept fastening hardware.

Fixture and Jig Assembly – Used in assembly fixtures where the bushing provides spacing, alignment, and threaded attachment for components. The stepped bore accommodates locating elements or pins.

Automotive and Machinery – Employed in powertrain and structural applications where the bushing supports shafts or components and provides threaded attachment points.

Space-Constrained Assemblies – Suitable for assemblies where multiple fastener functions must be consolidated into a single component.

Customization Options

Specifications and configurations can be adjusted based on application requirements. Flange diameter, bore step diameters and lengths, thread sizes, and overall length are customizable. Material grades include carbon steel and stainless steel. Surface treatments are selectable based on environmental exposure conditions.

Frequently Asked Questions

Q: What is the purpose of the stepped bore configuration in this bushing?
A: The stepped bore accommodates different shaft or component diameters within a single bushing, providing alignment and locating functions for components with varying interface sizes.

Q: What is the function of the flange on this bushing?
A: The flange serves as a positive stop during installation and provides a load-bearing surface that distributes axial loads across the workpiece.

Q: What is the purpose of the internal threads in the bushing?
A: The internal threads provide attachment points for mating fasteners, enabling component connection through the bushing without requiring separate nut components.

Q: What materials are available for this bushing?
A: Material grades include carbon steel for general applications, stainless steel for corrosion-resistant applications, and other materials based on specific requirements.

Q: What surface treatments are available?
A: Surface treatments include zinc plating, nickel plating, black oxide, and other finishes based on environmental exposure conditions.

Installation Considerations

The bushing should be installed with the flange seating against the workpiece surface. The stepped bore should align with the corresponding component interfaces. For threaded sections, the fastener should engage the specified thread length. Thread condition should be inspected before installation; damaged or contaminated threads may affect assembly integrity. For plated or coated bushings, coating thickness should be within specified tolerances to maintain bore and thread fit. When used in precision alignment applications, the bushing should be positioned to maintain the specified component alignment relative to the mounting surface.

assembly fixtures and jigs where the bushing provides guiding or locating functions for pins, shafts, or tools.

Automotive and Machinery – Used in transmission and powertrain components where stepped bore bushings provide bearing surfaces for shafts.