Hex Shafts, Couplings, & Collars
At MDS of Michigan, we supply high-quality Hex Bore Rigid Shaft Couplings, Solid Hex Shaft Collars, and Precision Hexagon Shafts—engineered for reliable performance in demanding applications like industrial machinery, robotics, and conveyor systems.
Why Hex Shafts?
Hex shafts have become a preferred option in these applications because they provide a direct mechanical connection between the shaft and the component mounted on it. Rather than relying on a key and keyway system, a hex shaft engages directly with the flat faces inside a hex bore, offering full-surface contact. This dramatically improves torque transmission, component alignment, and long-term system durability while reducing assembly time. Their unique geometry also reduces slippage in high-torque environments, making them ideal for critical load applications. Hexagon shafts improve:
- Torque transmission
- Component alignment
- Ease of assembly
- System durability
To complement these shafts, we offer hex bore rigid shaft couplings designed to provide a zero-backlash connection between two shafts. These couplings are perfect when you need to join two hex shafts in-line and ensure precise torque transfer without any flex or play. In applications such as conveyor systems or precision robotics, even a slight amount of shaft misalignment can result in vibration or uneven wear. Rigid shaft couplings solve this by locking both shafts together as a single solid unit—ideal for synchronized motion or maintaining angular alignment between components.
We also stock solid hex shaft collars, which are essential for positioning and securing components along the shaft. Whether you are locking a bearing in place, holding a sprocket, or setting an actuator limit, these collars grip the shaft securely without marring the surface. Combined with our precision-ground hex shafts—manufactured to tight tolerances for a clean fit—our collars, shafts, and couplings form a complete system for rugged and reliable mechanical performance.
Common Applications for Hex Shafts and Couplings
Hex shafts and hex bore components are used in a wide range of power transmission systems, including:
- Industrial power transmission
- Robotics
- Material handling
- Conveyor systems
- Packaging machinery
- Agricultural augers and equipment
These systems often require precision, repeatability, and reliable torque capacity—all of which hex shafts deliver.
A Few Considerations
While hex shafts offer several performance advantages, they do require careful selection and installation:
- Runout can occur due to the hex shape, potentially causing vibration or uneven wear.
- Finding compatible bearings or hubs may be more difficult than with standard round shafts.
- Alignment is key—improper installation can lead to premature component failure.
That is why our team at MDS of Michigan is here to help you choose the right parts for your setup. Whether you need off-the-shelf sizes or a custom cut, we will make sure you get the components you need—fast.
