Rigid Cylindrical Shaft Connector

The Rigid Cylindrical Shaft Connector is a compact rigid coupling used to connect two rotating shafts through a single cylindrical body. Typical applications include servo drives, instrument transmission systems, CNC equipment, vertical shaft assemblies, and other compact mechanical drive systems requiring a direct shaft-to-shaft connection.

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Product Introduction

Product Overview

Technical Specifications

Material	45# Steel / Stainless Steel / Aluminum
Bore Diameter	High-precision CNC bored (H7 tolerance)
Fastening Type	Set Screw / Single Split / Double Split Clamp
Torque Capacity	High torque, zero-backlash transmission

Core Advantages

H7 Bore Fit for Controlled Shaft Location
The connector is CNC bored to an H7 tolerance, giving the shaft interface a defined dimensional fit instead of relying on a loose general-purpose bore. In assemblies where two shafts must remain coaxial at speed, the controlled bore limits radial play at the connection and helps maintain the alignment established during machine setup.

Three Fastening Structures for Different Assembly Conditions
Set-screw, single-split clamp, and double-split clamp versions are available. A set-screw structure suits compact installations with straightforward locking, while split-clamp versions distribute holding force around more of the shaft surface. That arrangement works well when frequent removal, higher clamping contact, or reduced shaft marking is required.

Metal Options Match Weight, Corrosion, and Load Priorities
Standard material options include 45# steel, stainless steel, and aluminum. Steel is suited to general torque transmission. Stainless steel is used when the exposed metal needs more corrosion resistance, while aluminum keeps rotating mass lower in smaller motion systems. Material selection depends on the actual mechanical duty.

Customization

Bore Configuration
Metric, imperial, and mixed shaft-bore combinations can be produced to the mating shaft dimensions, including non-standard bore pairings for replacement or OEM assemblies.

Locking Structure
Set-screw, single-split, and double-split clamp configurations can be matched to the available installation space and shaft retention method.

Surface Treatment
Black oxide and nickel-plated finishes can be specified for storage, corrosion exposure, or matching an existing assembly.

Quality Control

Incoming metal stock is matched to the specified material before machining. Parts with visible corrosion, deformation, or mixed material identification are separated before they enter the production batch.

Machined connectors are measured against the drawing for the bore, outer dimensions, fastening features, and the geometry that controls shaft fit. For H7 bore requirements, acceptance is based on the specified tolerance rather than a general visual check. Clamp slots and threaded locking positions are also checked for complete machining.

Each connector receives a dimensional and surface-condition check before packing. Rejected pieces remain separated from accepted parts. Product identity and quantity are then verified against the order, with third-party inspection arranged when the contract requires it.