ANSI B17.1 B Type Carbon Steel Parallel Key
ANSI B17.1 B type carbon steel parallel key is a precision mechanical transmission component designed for reliable torque transfer between shafts and hubs. The ANSI B17.1 B type carbon steel parallel key features a rectangular profile with two square ends, providing stable positioning and efficient power transmission in rotating mechanical assemblies.
Manufactured from carbon steel, the ANSI B17.1 B type carbon steel parallel key offers excellent mechanical strength, wear resistance, and cost-effective performance. It is widely used in motors, gear drives, pumps, industrial machinery, and power transmission systems where accurate shaft-to-hub connections are required.

Product Overview
The ANSI B17.1 B type carbon steel parallel key is engineered for mechanical applications requiring secure torque transmission and precise component alignment. Its standardized rectangular shape fits into shaft and hub keyways, preventing relative rotation between connected parts.
The B type design with two square ends provides symmetrical installation and flexible positioning during assembly. Carbon steel construction delivers reliable strength and durability, making it suitable for general industrial transmission applications.
As an important industrial mechanical component, the ANSI B17.1 B type carbon steel parallel key is widely selected by OEM manufacturers, equipment builders, and engineering companies for dependable shaft connection solutions.
Product Specifications
| Item | Description |
|---|---|
| Standard | ANSI B17.1 |
| Product Name | ANSI B17.1 B Type Carbon Steel Parallel Key |
| Material | Carbon Steel |
| Key Type | B Type Parallel Key |
| End Shape | Two Square Ends |
| Cross Section | Rectangular |
| Width Range | 3mm–50mm |
| Height Range | 3mm–30mm |
| Length Range | Customized According to Requirement |
| Surface Finish | Plain / Black Oxide / Zinc Plated |
| Installation Type | Shaft and Hub Keyway Fit |
| Packaging | Bulk / Carton / OEM Packaging |
| Customization | Size, length, material, finish available |
Technical Parameters
| Parameter | Value |
|---|---|
| Tensile Strength | According to carbon steel grade |
| Shear Strength | High torque transmission capability |
| Hardness | Controlled according to application requirements |
| Density | Approx. 7.85 g/cm³ |
| Wear Resistance | Good mechanical durability |
| Corrosion Resistance | Depends on surface treatment |
| Operating Temperature | Suitable for general industrial applications |
| Manufacturing Standard | ANSI B17.1 |
Materials and Manufacturing Process
The ANSI B17.1 B type carbon steel parallel key is manufactured through precision machining processes to achieve accurate dimensions and reliable transmission performance.
- Raw material selection: High-quality carbon steel bar stock
- Cutting: Precision cutting according to required length
- Milling machining: Formation of rectangular key profile
- End machining: Produces accurate square ends
- Grinding: Improves dimensional accuracy and surface quality
- Heat treatment: Applied when required to enhance hardness and wear resistance
- Surface finishing: Black oxide, zinc plating, or customized coating
- Inspection: Width, height, length, and tolerance verification
- Packaging: Protective industrial packaging for transportation
Each ANSI B17.1 B type carbon steel parallel key is produced under strict quality control to ensure stable performance in mechanical assemblies.
Applications of the Product
The ANSI B17.1 B type carbon steel parallel key is widely used across multiple industries:
- Electric motors: Shaft and rotor torque transmission
- Gear systems: Gear and shaft connection applications
- Pumps: Impeller and drive shaft assemblies
- Industrial machinery: Power transmission systems
- Automotive equipment: Mechanical drive components
- Agricultural machinery: Rotating shaft assemblies
- Automation equipment: Motion control systems
- Manufacturing equipment: Couplings, pulleys, and sprockets
Its reliable torque transfer capability makes it suitable for a wide range of mechanical power applications.
Why Choose This Product
- ANSI B17.1 standard compatibility
- Reliable torque transmission performance
- Carbon steel provides excellent mechanical strength
- Accurate shaft and hub positioning
- Two square ends allow flexible installation
- Suitable for industrial power transmission systems
- Cost-effective mechanical connection solution
- Multiple surface treatments available
- OEM customization support
The ANSI B17.1 B type carbon steel parallel key provides a durable and economical solution for shaft and hub connections.
Why Choose Flybear
Flybear is a professional manufacturer specializing in precision industrial fasteners and mechanical transmission components.
- Advanced CNC machining and milling capability
- 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:
- Raw material chemical composition analysis
- Dimensional accuracy inspection
- Width and height measurement
- Length tolerance verification
- Hardness testing
- Surface finish inspection
- Keyway compatibility checking
- Packaging quality control
All production processes follow ISO-based quality management systems to ensure consistent product reliability.
Selection Guide
When selecting an ANSI B17.1 B type carbon steel parallel key, consider:
- Shaft diameter and keyway dimensions
- Required torque capacity
- Operating speed and load conditions
- Hub and shaft material compatibility
- Surface treatment requirements
- Working environment conditions
Correct selection ensures efficient torque transmission and long-term mechanical stability.
FAQ
1. What is ANSI B17.1 B type parallel key used for?
It is used to transmit torque between shafts and hubs in mechanical drive systems.
2. What does B type parallel key mean?
B type refers to a parallel key design with two square ends for symmetrical installation.
3. Why choose carbon steel material?
Carbon steel provides good strength, wear resistance, and economical performance.
4. Can ANSI B17.1 keys be customized?
Yes, Flybear supports customized dimensions, materials, and surface treatments.
5. Where are parallel keys commonly used?
They are widely used in motors, pumps, gears, couplings, and industrial machinery.
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.




