304 Stainless Steel Parallel Key

304 Stainless Steel Parallel Key

304 stainless steel parallel key is a precision mechanical transmission component designed for reliable torque transfer, shaft positioning, and corrosion-resistant assembly applications. The 304 stainless steel parallel key is manufactured from high-quality 304 stainless steel, offering excellent corrosion resistance, stable dimensions, and reliable mechanical performance.

The 304 stainless steel parallel key features a standard rectangular key profile that fits accurately into shaft and hub keyways, preventing relative rotation between connected components. It is widely used in food processing equipment, marine systems, chemical machinery, pumps, motors, and industrial equipment where corrosion resistance and clean operation are required.

304 stainless steel parallel key


Product Overview

The 304 stainless steel parallel key is engineered for mechanical power transmission applications requiring reliable positioning and improved environmental resistance. Its rectangular structure provides stable torque transfer between shafts and mounted components such as gears, pulleys, couplings, and sprockets.

Compared with carbon steel keys, the 304 stainless steel parallel key offers superior resistance to moisture, oxidation, and many chemical environments. It is especially suitable for applications where equipment cleanliness and long-term corrosion protection are important.

As a dependable industrial mechanical component, it is widely selected by OEM manufacturers, machinery builders, and engineering companies for durable shaft connection solutions.


Product Specifications

Item Description
Product Name 304 Stainless Steel Parallel Key
Material 304 Stainless Steel
Key Type Standard Parallel Key
Shape Rectangular Key
End Type Standard Square Ends
Width Range 2mm–50mm
Height Range 2mm–30mm
Length Range Customized According to Requirement
Surface Finish Natural Stainless Steel / Polished
Installation Type Shaft and Hub Keyway Fit
Packaging Bulk / Carton / OEM Packaging
Customization Size, length, tolerance available

Technical Parameters

Parameter Value
Tensile Strength Approx. 515 MPa
Yield Strength Approx. 205 MPa
Hardness ≤ HRB 92
Density Approx. 7.93 g/cm³
Corrosion Resistance Excellent resistance in common environments
Wear Resistance Good for standard transmission applications
Operating Temperature Suitable for general industrial conditions
Material Standard 304 Stainless Steel

Materials and Manufacturing Process

The 304 stainless steel parallel key is manufactured through precision machining processes to ensure accurate dimensions, smooth surfaces, and reliable transmission performance.

  • Raw material selection: High-quality 304 stainless steel bar stock
  • Cutting: Precision cutting according to required length
  • Milling machining: Formation of rectangular key geometry
  • Grinding: Improves dimensional accuracy and surface finish
  • Deburring: Removes sharp edges for safe installation
  • Surface finishing: Natural stainless steel finish or polishing
  • Inspection: Width, height, length, and tolerance testing
  • Packaging: Protective industrial packaging for transportation

Each 304 stainless steel parallel key is produced under strict quality control to ensure consistent mechanical performance.


Applications of the Product

The 304 stainless steel parallel key is widely used across multiple industries:

  • Food processing equipment: Hygienic corrosion-resistant transmission systems
  • Chemical machinery: Components exposed to moisture and chemicals
  • Marine equipment: Corrosion-resistant shaft connections
  • Pumps and valves: Rotating component assemblies
  • Electric motors: Shaft and rotor connections
  • Automation equipment: Precision motion systems
  • Pharmaceutical equipment: Clean manufacturing environments
  • Industrial machinery: Gear, pulley, and coupling systems

Its corrosion resistance makes it suitable for environments where standard steel keys may require frequent replacement.


Why Choose This Product

  • Excellent corrosion resistance of 304 stainless steel
  • Reliable torque transmission performance
  • Accurate shaft and hub positioning
  • Stable dimensional accuracy
  • Suitable for humid and clean environments
  • Good mechanical strength for industrial use
  • Smooth surface finish options available
  • Long service life compared with carbon steel keys
  • OEM customization support

The 304 stainless steel parallel key provides a reliable and corrosion-resistant solution for mechanical transmission systems.


Why Choose Flybear

Flybear is a professional manufacturer specializing in precision industrial fasteners and mechanical transmission components.

  • Advanced CNC machining capability
  • Stainless steel component manufacturing experience
  • OEM/ODM customization support
  • Stable production 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:

  • Stainless steel material composition analysis
  • Raw material certificate verification
  • Dimensional accuracy inspection
  • Width, height, and length measurement
  • Surface finish inspection
  • Tolerance verification
  • Batch consistency inspection
  • Packaging quality control

All production processes follow ISO-based quality management systems to ensure consistent product reliability.


Selection Guide

When selecting a 304 stainless steel parallel key, consider:

  • Shaft diameter and keyway dimensions
  • Required torque transmission capacity
  • Operating environment conditions
  • Corrosion exposure level
  • Assembly tolerance requirements
  • Equipment maintenance requirements

Correct selection ensures efficient power transmission and long-term mechanical stability.


FAQ

1. What is a 304 stainless steel parallel key used for?
It is used to transmit torque and secure rotating components between shafts and hubs.

2. Why choose 304 stainless steel material?
304 stainless steel provides excellent corrosion resistance and stable mechanical properties.

3. Can stainless steel keys replace carbon steel keys?
Yes, especially in applications requiring better corrosion resistance.

4. Can custom sizes be produced?
Yes, Flybear supports customized dimensions, lengths, and tolerances.

5. Which industries use 304 stainless steel keys?
They are widely used in food equipment, pumps, motors, chemical machinery, and automation systems.


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.

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