Daisy
Last Updated: Feb 8, 2026
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| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| uxcell | 9.95 | ✅ | ✅ | ✅ |
Connection Diameter: 6mm to 10mm, Total Length: 22mm /0.87 inch, Outside Diameter : 16mm/ 0.63 inch
Widely used in blowers,3D printer,DIY robots,CNC machine,stepper motors,etc. Similar to rigid clamp couplings, shaft couplers are used to hold bearings and sprockets tightly on the shaft, and are used in motor and gearbox assemblies.
Top tight type rigid coupling with 2/4 screws to hold the shaft tightly; high torque with rigidity, low inertia and excellent sensitivity.
NOTE: The rigid type basically does not allow eccentricity, and it must be fully adjusted during use.
Single piece set screw clamp design makes it easy to set up the items on the shaft and control the holding capacity of the coupling.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| uxcell | 9.95 | ✅ | ✅ | ✅ |
Connection Diameter: 5mm to 5mm, Total Length: 20mm /0.78 inch, Outside Diameter : 12mm/ 0.47 inch
Widely used in blowers,3D printer,DIY robots,CNC machine,stepper motors,etc. Similar to rigid clamp couplings, shaft couplers are used to hold bearings and sprockets tightly on the shaft, and are used in motor and gearbox assemblies.
Top tight type rigid coupling with 2/4 screws to hold the shaft tightly; high torque with rigidity, low inertia and excellent sensitivity.
NOTE: The rigid type basically does not allow eccentricity, and it must be fully adjusted during use.
Single piece set screw clamp design makes it easy to set up the items on the shaft and control the holding capacity of the coupling.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Summit Collars & Industrial Supply | 7.03 | ❌ | ❌ | ❌ |
Provides torque transmision and alignment
Cost effective coupling design
Easily installed where major disassembly would otherwise be required
Tolerance: +.0005/+.0030
Black oxide provides some corrosion resistance
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| uxcell | 9.95 | ✅ | ✅ | ✅ |
Inner Diameter: 8mm/0.31 inch, Total Height: 13mm/0.51 inch, Cylinder Outer Diameter: 16mm/0.63 inch, Cylinder Height: 10mm/1.31 inch, Base Diameter: 32mm/1.26 inch, Base Height: 3mm/0.12 inch, Mounting Hole Distance: 24mm/0.94 inch,2 x M4 Fastening Screws
Type: Flange Shaft Coupling, suitable for model shaft connection, perfect accessories for RC Model motor, etc.
Material: Aluminum Alloy, hardened by heat treatment, and then electroplated. Durable and insulation, make your shaft more stable, easy to install and replace.
Function: A special coupler, which can fix one shaft to a plane and install other parts on the shaft easily. Double connection points fasten the coupler tightly.
Package: 2 x 8mm Flange Shaft Coupling, 4 x Fastening Screw( M4 Hex Wrench Not Included Here )
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| uxcell | 9.95 | ✅ | ✅ | ✅ |
Connection Diameter: 4mm to 6mm, Total Length: 26mm /1.02 inch, Outside Diameter : 12mm/ 0.47 inch
Widely used in blowers,3D printer,DIY robots,CNC machine,stepper motors,etc. Similar to rigid clamp couplings, shaft couplers are used to hold bearings and sprockets tightly on the shaft, and are used in motor and gearbox assemblies.
Top tight type rigid coupling with 2/4 screws to hold the shaft tightly; high torque with rigidity, low inertia and excellent sensitivity.
NOTE: The rigid type basically does not allow eccentricity, and it must be fully adjusted during use.
Single piece set screw clamp design makes it easy to set up the items on the shaft and control the holding capacity of the coupling.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| uxcell | 9.95 | ✅ | ✅ | ✅ |
Connection Bore Diameter: 1/4 inch to 1/4 inch; Total Length: 25mm /0.98 inch, Outside Diameter : 14mm/ 0.55 inch; with M4 Screws
Widely used in blowers,3D printer,DIY robots,CNC machine,stepper motors,etc. Similar to rigid clamp couplings, shaft couplers are used to hold bearings and sprockets tightly on the shaft, and are used in motor and gearbox assemblies.
Top tight type rigid coupling with 2/4 screws to hold the shaft tightly; high torque with rigidity, low inertia and excellent sensitivity.
NOTE: The rigid type basically does not allow eccentricity, and it must be fully adjusted during use.
Single piece set screw clamp design makes it easy to set up the items on the shaft and control the holding capacity of the coupling.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Effective on hard and soft shafts
Design fully engages the shaft without marring
High axial load and torque capacity
Recessed screw head provides an outside surface free of major projection for safety
Black oxide provides some corrosion resistance
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| uxcell | 9.95 | ✅ | ✅ | ✅ |
Connection Diameter: 10mm to 10mm, Total Length: 22mm /0.87 inch, Outside Diameter : 16mm/ 0.63 inch
Widely used in blowers,3D printer,DIY robots,CNC machine,stepper motors,etc. Similar to rigid clamp couplings, shaft couplers are used to hold bearings and sprockets tightly on the shaft, and are used in motor and gearbox assemblies.
Top tight type rigid coupling with 2/4 screws to hold the shaft tightly; high torque with rigidity, low inertia and excellent sensitivity.
NOTE: The rigid type basically does not allow eccentricity, and it must be fully adjusted during use.
Single piece set screw clamp design makes it easy to set up the items on the shaft and control the holding capacity of the coupling.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Supplying Demand | 9.92 | ✅ | ✅ | ✅ |
Designed to be used with cast-iron, plastic, or steel pipes.
(2) Stainless steel screw clamps included
This coupler is 1-1/2 inches at each end and designed for easy slip-on fitting.
Maximum Operating Pressure: 5 PSI | Temperature Range: -30 Degrees F to 140 Degrees F
SD products come in Supplying Demand packaging.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| uxcell | 9.95 | ✅ | ✅ | ✅ |
Connection Bore Diameter: 1/8 inch to 1/8 inch; Total Length: 20mm /0.79 inch, Outside Diameter : 10mm/ 0.39 inch; with M3 Screws
Widely used in blowers,3D printer,DIY robots,CNC machine,stepper motors,etc. Similar to rigid clamp couplings, shaft couplers are used to hold bearings and sprockets tightly on the shaft, and are used in motor and gearbox assemblies.
Top tight type rigid coupling with 2/4 screws to hold the shaft tightly; high torque with rigidity, low inertia and excellent sensitivity.
NOTE: The rigid type basically does not allow eccentricity, and it must be fully adjusted during use.
Single piece set screw clamp design makes it easy to set up the items on the shaft and control the holding capacity of the coupling.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| dmiotech | 8.47 | ✅ | ✅ | ✅ |
APPLICATION: Widely used in blowers,3D printers, DIY robots, CNC machines, stepper motors, etc. Similar to rigid clamp couplings, shaft couplers are used to hold bearings and sprockets tightly on the shaft, and are used in motor and gearbox assemblies.
SIZE: Connection Diameter: 8-8mm, Total Length: 25mm /0.98 inch, Outside Diameter : 14mm/ 0.55 inch
FEATURE: Single piece set screw clamp design makes it easy to set up the items on the shaft and control the holding capacity of the coupling.
FUNCTION: Top tight type rigid coupling with 2/4 screws to hold the shaft tightly; high torque with rigidity, low inertia and excellent sensitivity.
NOTE: The rigid type basically does not allow eccentricity, and it must be fully adjusted during use.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| FunitricUUU | 8.90 | ✅ | ✅ | ✅ |
【Size&Package】Bore Diameter: 1/4 inch to 1/4 inch; Total Length: 25mm/0.98 inch, Outside Diameter: 20mm/0.78 inch
【Excellent Performance】Bore rigid coupling is made of stainless steel to reduce inertia, has high torque with rigidity, low inertia, and excellent sensitivity. No rotation gap and elastic action can make up for symmetrical angular misalignment.
【Durable Steel Material】Shaft coupler connector is oil proof, corrosion-resistant, corrosion-resistant, and does not rust, having a long service life.
【Wide Applications】The rigid shaft coupler is used to hold bearings and sprockets tightly on the shaft to ensure the normal operation of the machine. Widely used in blowers, 3D printer, DIY robots, CNC machine, stepper motors, mechanical drive situations, etc.
【NOTE】 The rigid type shaft coupling basically does not allow eccentricity, so it must be fully adjusted during use.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| FunitricUUU | 8.90 | ✅ | ✅ | ✅ |
【Size&Package】Bore Diameter: 5mm to 5mm, Total Length: 20mm /0.78 inch, Outside Diameter : 12mm/ 0.47 inch, Through Angle: 180 Degree; 2 x shaft coupler connector
【Excellent Performance】Bore rigid coupling is made of aluminum alloy to reduce inertia, has high torque with rigidity, low inertia, and excellent sensitivity. No rotation gap and elastic action can make up for symmetrical angular misalignment.
【Durable Aluminum Material】Shaft coupler connector is oil proof, corrosion-resistant, corrosion-resistant, and does not rust, having a long service life.
【Wide Applications】The rigid shaft coupler is used to hold bearings and sprockets tightly on the shaft to ensure the normal operation of the machine. Widely used in blowers, 3D printer, DIY robots, CNC machine, stepper motors, mechanical drive situations, etc.
【NOTE】 The rigid type shaft coupling basically does not allow eccentricity, so it must be fully adjusted during use.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Summit Collars & Industrial Supply | 7.03 | ❌ | ❌ | ❌ |
Effective on hard and soft shafts
Design fully engages the shaft without marring
High axial load and torque capacity
Black oxide provides some corrosion resistance
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| dmiotech | 9.34 | ✅ | ✅ | ✅ |
APPLICATION: Widely used in blowers,3D printers, DIY robots, CNC machines, stepper motors, etc. Similar to rigid clamp couplings, shaft couplers are used to hold bearings and sprockets tightly on the shaft, and are used in motor and gearbox assemblies.
SIZE: Connection Diameter: 5-8mm, Total Length: 25mm /0.98 inch, Outside Diameter : 14mm/ 0.55 inch
FEATURE: Single piece set screw clamp design makes it easy to set up the items on the shaft and control the holding capacity of the coupling.
FUNCTION: Top tight type rigid coupling with 2/4 screws to hold the shaft tightly; high torque with rigidity, low inertia and excellent sensitivity.
NOTE: The rigid type basically does not allow eccentricity, and it must be fully adjusted during use.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Ruland oldham couplings have a zero-backlash balanced design for reduced vibration at speeds up to 4,500 RPM. Keyway is used on this coupling for additional torque transmission capabilities and to prevent slippage on the shaft.
Can accommodate high amounts of parallel misalignment (up to 10% of the hub OD). Acts as a mechanical fuse stopping power transmission during a torque overload.
User can combine clamp or set screw hub with inch, metric, keyed, or keyless bore for a high level of customization. Proprietary hub machining process for smooth interaction between the hub and disk allowing for significantly longer life
Made from high strength 2024 aluminum with a black anodized finish for light weight and low inertia.
Hardware exceeds DIN 912 12.9 standards for maximum torque capabilities. Ruland oldham couplings are carefully made from select North American bar stock in our Marlborough, Massachusetts factory and are RoHS3 and REACH compliant.
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| Uxcell | 28 |
| Climax Metals | 21 |
| Dmiotech | 4 |
| Ta-Vigor | 3 |
| Ruland | 1 |
| Summit Collars & Industrial Supply | 1 |
| Supplying Demand | 1 |
We've carried out a comprehensive analysis of 2,898 reviews on rigid couplings, using our selection criteria to identify the best options in the categories. Our findings reveal that most customers typically select rigid couplings priced around $19.81, with top brands including and climax metals
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