Parallel Key with Threaded Hole
Parallel key with threaded hole is a precision mechanical transmission component designed for secure torque transfer, accurate shaft positioning, and convenient removal during maintenance. The Parallel Key with Threaded Hole features a standard rectangular key profile with an additional internal threaded hole, allowing easier extraction from shaft keyways and improving assembly efficiency.
Manufactured from high-quality materials such as carbon steel, stainless steel, or alloy steel, the Parallel Key with Threaded Hole provides reliable mechanical performance, dimensional accuracy, and long service life. It is widely used in motors, gear systems, pumps, machine tools, and industrial equipment where both secure torque transmission and easy maintenance are required.
Product Overview
The Parallel Key with Threaded Hole is engineered for mechanical power transmission systems where traditional keys may be difficult to remove after installation. The rectangular key body fits into the shaft and hub keyway to prevent relative rotation, while the threaded hole allows a screw or pulling tool to be used for convenient removal.
Compared with standard parallel keys, the Parallel Key with Threaded Hole improves equipment maintenance efficiency and reduces the risk of damaging shafts or hubs during disassembly. It is especially suitable for machines requiring frequent inspection, replacement, or adjustment.
As a reliable industrial mechanical component, it is widely selected by OEM manufacturers, machinery builders, and engineering companies for precision transmission applications.
Product Specifications
| Item | Description |
|---|---|
| Product Name | Parallel Key with Threaded Hole |
| Material | Carbon Steel / Stainless Steel / Alloy Steel |
| Key Type | Parallel Key with Removal Thread |
| Shape | Rectangular Key |
| End Type | Square Ends / Customized |
| Thread Type | Metric Internal Thread |
| Width Range | 2mm–50mm |
| Height Range | 2mm–30mm |
| Length Range | Customized |
| Surface Finish | Plain / Black Oxide / Zinc Plated / Stainless Finish |
| Installation Type | Shaft and Hub Keyway Fit |
| Function | Torque Transmission and Easy Removal |
| Packaging | Bulk / Carton / OEM Packaging |
| Customization | Size, thread, material, finish available |
Technical Parameters
| Parameter | Value |
|---|---|
| Tensile Strength | According to selected material grade |
| Shear Strength | High torque transmission capability |
| Hardness | Customized according to application |
| Density | Steel Approx. 7.85 g/cm³ |
| Wear Resistance | Good mechanical durability |
| Corrosion Resistance | Depends on material and surface treatment |
| Thread Accuracy | Controlled according to requirement |
| Manufacturing Standard | Customized or according to DIN6885 requirements |
Materials and Manufacturing Process
The Parallel Key with Threaded Hole is manufactured through precision machining processes to ensure accurate dimensions, reliable torque transmission, and smooth removal performance.
- Raw material selection: High-quality steel or stainless steel bar stock
- Cutting: Precision cutting according to required length
- Milling machining: Formation of rectangular key profile
- Thread drilling: Precision machining of internal threaded hole
- Grinding: Improves dimensional accuracy and surface finish
- Heat treatment: Applied when required to improve hardness and wear resistance
- Surface finishing: Black oxide, zinc plating, polishing, or customized treatment
- Inspection: Key dimensions, thread accuracy, and surface quality testing
- Packaging: Protective industrial packaging for transportation
Each Parallel Key with Threaded Hole is produced under strict quality control to ensure stable mechanical performance.
Applications of the Product
The Parallel Key with Threaded Hole is widely used across multiple industries:
- Electric motors: Shaft and rotor connection systems
- Gear drives: Torque transmission between shafts and gears
- Pumps: Impeller and shaft assemblies
- Machine tools: Precision mechanical positioning systems
- Automation equipment: Motion transmission components
- Industrial machinery: Coupling and pulley assemblies
- Mold equipment: Removable positioning structures
- Manufacturing systems: Maintenance-friendly mechanical assemblies
Its threaded removal feature makes it ideal for equipment requiring regular maintenance and replacement.
Why Choose This Product
- Convenient removal through threaded hole design
- Reliable torque transmission performance
- Accurate shaft and hub positioning
- Reduces maintenance time during disassembly
- Available in multiple materials
- Suitable for precision mechanical systems
- Good resistance to mechanical stress
- Custom dimensions and thread specifications available
- OEM production support
The Parallel Key with Threaded Hole provides an efficient solution for mechanical transmission systems requiring both performance and serviceability.
Why Choose Flybear
Flybear is a professional manufacturer specializing in precision industrial fasteners and mechanical transmission components.
- Advanced CNC machining capability
- Custom key manufacturing experience
- OEM/ODM production support
- Stable manufacturing capacity for bulk orders
- Strict quality inspection procedures
- Global export experience
- Engineering support for customized applications
Flybear provides reliable mechanical components for machinery manufacturers, distributors, and industrial customers worldwide.
Quality Inspection and Control
Quality assurance is maintained throughout the manufacturing process:
- Raw material chemical composition analysis
- Material certificate verification
- Key width, height, and length measurement
- Thread gauge inspection
- Hardness testing
- Surface finish inspection
- Dimensional tolerance verification
- Packaging quality control
All production processes follow ISO-based quality management systems to ensure consistent product reliability.
Selection Guide
When selecting a Parallel Key with Threaded Hole, consider:
- Shaft diameter and keyway dimensions
- Required torque transmission capacity
- Thread size for removal operation
- Material compatibility
- Operating environment conditions
- Required maintenance frequency
Correct selection ensures reliable power transmission and convenient future servicing.
FAQ
1. What is a Parallel Key with Threaded Hole used for?
It is used for torque transmission between shafts and hubs while allowing easier removal.
2. Why add a threaded hole to a parallel key?
The threaded hole allows a screw or tool to pull the key out during maintenance.
3. What materials are available?
Common options include carbon steel, stainless steel, and alloy steel.
4. Can custom thread sizes be produced?
Yes, Flybear supports customized key dimensions and thread specifications.
5. Is this key compatible with DIN6885 systems?
Yes, customized versions can be manufactured according to DIN6885 dimensions and requirements.
We always adhere to the philosophy of quality first and customer first, providing customers with high-quality fastener products and one-stop fastener solutions.
Contact us for quotation, customization, and technical support via Contact Us.
