Deliver toUnited Arab Emirates
uxcell 8mm to 8mm Bore Rigid Coupling Set Screw L22XD14 Stainless Steel,Shaft Coupler Connector for 3D Printers, Motor Accessories,2pcs

Description:

  • Connection Diameter: 8mm to 8mm, Total Length: 22mm /0.87 inch, Outside Diameter : 14mm/ 0.55 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.

  • Specification:
    8 pcs screws design
    Thread Size: M4
    Color: Silver Tone
    Material: Steel
    Connection Diameter: 8mm to 8mm
    Total Length: 22mm /0.87 inch
    Outside Diameter : 14mm/ 0.55 inch
    Through Angle: 90 Degree

    Package List:
    2 Pcs x Rigid Shaft Coupler
    8 Pcs x M4 Screws

    Description:
    Made from Steel material to reduce inertia
    Rigid coupling,high torque with rigidity,low inertia and excellent sensitivity
    No rotation gap, elastic action can make up for symmetrical angular misalignment
    Maintenance-free, oil proof and corrosion resistance
    Suitable for model car, model boat, hardware, , mechanical drive situations etc

    Note:
    Please allow 1-3mm differs due to manual measurement
    Due to the different display and different light, the picture may not reflect the actual color of the item. Thanks for your understanding

    Reviews:

    5.0 out of 5 stars Great item

    B. · September 7, 2025

    Fits like it ahould

    5.0 out of 5 stars Works for 1/4 to 3/8 inch shaft

    W.J.J. · June 22, 2024

    I figured that I would give this a shot to join a 1/4 to 3/8 inch shaft for a drill. 3/8 is about half a millimeter smaller than the 10mm spec but I managed to get it set just fine. After a few tests I noticed a slight wobble. This was quickly resolved with a thin shim to steady and center the 3/8 in shaft in the 10mm hole. Precision demands such things. Now I know how tolerances are important if you want a quality tool.I’m really happy with how it turned out. Good coupling sleeve for mating two odd shafts. If I need another one in the future, I wouldn’t hesitate to order more of the same.Highly recommended.

    5.0 out of 5 stars Almost Perfect!!

    I.P.S. · April 1, 2024

    Yep, I said "Almost". But it's my shortcomings not the product's shortcomings that make me say "almost". The set screws are really small and hard to see or insert. You have to put them in the right way or you cannot use an allen wrench to tighten them. In my younger days, before cataracts, I wouldn't have had any problem seeing these set screws. But today, it was difficult getting them screwed in and tightened. I would have liked the set screws to be locked into the holes so I only had to tighten them and couldn't take them out or lose them.I am building a linear stage which uses a 5/16" threaded rod and a 12VDC motor with a 4mm shaft. I needed to connect them together. I talked with employees at the big box hardware stores and department stores -- they had no idea what to use to make the connection. It wasn't until I realized that the motor manufacturer would probably have good ideas for how to make the connection that I found these connectors.

    4.0 out of 5 stars good product

    p.s. · September 6, 2025

    works as expected

    5.0 out of 5 stars good value for the money

    D.C. · April 15, 2025

    size was excellent, they fit what I used them for. They feel tight with no slipping and did not strip out .

    5.0 out of 5 stars Good quality

    B.P. · August 13, 2025

    Good quality

    3.0 out of 5 stars Missing one of the set screws

    F.Y. · January 31, 2024

    Connectors came in a small plastic bag inside a sealed box. Fortunately for me, I had other set screws to compensate for the missing part but unfortunate for you if you do not.

    5.0 out of 5 stars Well made, works as it should

    s. · September 7, 2024

    Honestly it would be hard not to make a good set of shaft couplers like these. They work great, and will probably be reusable forever unless you make the mistake of stripping the threads somehow. The set screws (grub screws) included could be a mm or more longer depending on how you use the part, but if you are coupling shafts that fill the holes entirely then they will work just fine. In my case I was trying to grip a shaft that was undersized and this was the closest coupler I could find for my application.

    High Quality, Good Product

    s. · August 18, 2025

    Worked perfect to connect two ends in a stereo amplifier I was trying to fix.

    Does the job so far.

    R.M. · August 20, 2024

    Using this to connect a motor to a bike trainer to create a generator. Seems OK so far but needs to be aligned correctly. I have a flexible one on order just in case.

    bien fait.

    J.F.D. · October 3, 2025

    Qualité!

    Adapter

    W.G. · February 8, 2025

    Works great from round shaft to hex

    Good product. Well made

    D. · May 25, 2024

    Works as described.

    uxcell 8mm to 8mm Bore Rigid Coupling Set Screw L22XD14 Stainless Steel,Shaft Coupler Connector for 3D Printers, Motor Accessories,2pcs

    Product ID: UO07C5LMXL5
    Condition: New

    4.5

    AED5715

    Price includes VAT & Import Duties
    Color: Silver Tone
    Product imageProduct image
    Size: 8mm to 8mm
    Availability: In Stock

    Quantity:

    |

    Order today to get by 7-14 business days

    Delivery fee of AED 20. Free for orders above AED 200.

    Returns & Warranty policies

    Imported From: United States

    At BOLO, we work hard to ensure the products you receive are new, genuine, and sourced from reputable suppliers.

    BOLO is not an authorized or official retailer for most brands, nor are we affiliated with manufacturers unless specifically stated on a product page. Instead, we source verified sellers, authorized distributors or directly from the manufacturer.

    Each product undergoes thorough inspection and verification at our consolidation and fulfilment centers to ensure it meets our strict authenticity and quality standards before being shipped and delivered to you.

    If you ever have concerns regarding the authenticity of a product purchased from us, please contact Bolo Support. We will review your inquiry promptly and, if necessary, provide documentation verifying authenticity or offer a suitable resolution.

    Your trust is our top priority, and we are committed to maintaining transparency and integrity in every transaction.

    All product information, images, descriptions, and reviews originate from the manufacturer or from trusted sellers overseas. BOLO is not affiliated with, endorsed by, or an authorized retailer for most brands listed on our website unless stated otherwise.

    While we strive to display accurate information, variations in packaging, labeling, instructions, or formulation may occasionally occur due to regional differences or supplier updates. For detailed or manufacturer-specific information, please contact the brand directly or reach out to BOLO Support for assistance.

    Unless otherwise stated, all prices displayed on the product page include applicable taxes and import duties.

    BOLO operates in accordance with the laws and regulations of United Arab Emirates. Any items found to be restricted or prohibited for sale within the UAE will be cancelled prior to shipment. We take proactive measures to ensure that only products permitted for sale in United Arab Emirates are listed on our website.

    All items are shipped by air, and any products classified as “Dangerous Goods (DG)” under IATA regulations will be removed from the order and cancelled.

    All orders are processed manually, and we make every effort to process them promptly once confirmed. Products cancelled due to the above reasons will be permanently removed from listings across the website.

    Similar suggestions by Bolo

    More from this brand

    Similar items from “Set Screw”

    uxcell 8mm to 8mm Bore Rigid Coupling Set Screw L22XD14 Stainless Steel,Shaft Coupler Connector for 3D Printers, Motor Accessories,2pcs

    Product ID: UO07C5LMXL5
    Condition: New

    4.5

    uxcell 8mm to 8mm Bore Rigid Coupling Set Screw L22XD14 Stainless Steel,Shaft Coupler Connector for 3D Printers, Motor Accessories,2pcs-0
    Color: Silver Tone
    Product imageProduct image
    Size: 8mm to 8mm

    AED5715

    Price includes VAT & Import Duties
    Availability: In Stock

    Quantity:

    |

    Order today to get by 7-14 business days

    Delivery fee of AED 20. Free for orders above AED 200.

    Returns & Warranty policies

    Imported From: United States

    At BOLO, we work hard to ensure the products you receive are new, genuine, and sourced from reputable suppliers.

    BOLO is not an authorized or official retailer for most brands, nor are we affiliated with manufacturers unless specifically stated on a product page. Instead, we source verified sellers, authorized distributors or directly from the manufacturer.

    Each product undergoes thorough inspection and verification at our consolidation and fulfilment centers to ensure it meets our strict authenticity and quality standards before being shipped and delivered to you.

    If you ever have concerns regarding the authenticity of a product purchased from us, please contact Bolo Support. We will review your inquiry promptly and, if necessary, provide documentation verifying authenticity or offer a suitable resolution.

    Your trust is our top priority, and we are committed to maintaining transparency and integrity in every transaction.

    All product information, images, descriptions, and reviews originate from the manufacturer or from trusted sellers overseas. BOLO is not affiliated with, endorsed by, or an authorized retailer for most brands listed on our website unless stated otherwise.

    While we strive to display accurate information, variations in packaging, labeling, instructions, or formulation may occasionally occur due to regional differences or supplier updates. For detailed or manufacturer-specific information, please contact the brand directly or reach out to BOLO Support for assistance.

    Unless otherwise stated, all prices displayed on the product page include applicable taxes and import duties.

    BOLO operates in accordance with the laws and regulations of United Arab Emirates. Any items found to be restricted or prohibited for sale within the UAE will be cancelled prior to shipment. We take proactive measures to ensure that only products permitted for sale in United Arab Emirates are listed on our website.

    All items are shipped by air, and any products classified as “Dangerous Goods (DG)” under IATA regulations will be removed from the order and cancelled.

    All orders are processed manually, and we make every effort to process them promptly once confirmed. Products cancelled due to the above reasons will be permanently removed from listings across the website.

    Description:

  • Connection Diameter: 8mm to 8mm, Total Length: 22mm /0.87 inch, Outside Diameter : 14mm/ 0.55 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.

  • Specification:
    8 pcs screws design
    Thread Size: M4
    Color: Silver Tone
    Material: Steel
    Connection Diameter: 8mm to 8mm
    Total Length: 22mm /0.87 inch
    Outside Diameter : 14mm/ 0.55 inch
    Through Angle: 90 Degree

    Package List:
    2 Pcs x Rigid Shaft Coupler
    8 Pcs x M4 Screws

    Description:
    Made from Steel material to reduce inertia
    Rigid coupling,high torque with rigidity,low inertia and excellent sensitivity
    No rotation gap, elastic action can make up for symmetrical angular misalignment
    Maintenance-free, oil proof and corrosion resistance
    Suitable for model car, model boat, hardware, , mechanical drive situations etc

    Note:
    Please allow 1-3mm differs due to manual measurement
    Due to the different display and different light, the picture may not reflect the actual color of the item. Thanks for your understanding

    Reviews:

    5.0 out of 5 stars Great item

    B. · September 7, 2025

    Fits like it ahould

    5.0 out of 5 stars Works for 1/4 to 3/8 inch shaft

    W.J.J. · June 22, 2024

    I figured that I would give this a shot to join a 1/4 to 3/8 inch shaft for a drill. 3/8 is about half a millimeter smaller than the 10mm spec but I managed to get it set just fine. After a few tests I noticed a slight wobble. This was quickly resolved with a thin shim to steady and center the 3/8 in shaft in the 10mm hole. Precision demands such things. Now I know how tolerances are important if you want a quality tool.I’m really happy with how it turned out. Good coupling sleeve for mating two odd shafts. If I need another one in the future, I wouldn’t hesitate to order more of the same.Highly recommended.

    5.0 out of 5 stars Almost Perfect!!

    I.P.S. · April 1, 2024

    Yep, I said "Almost". But it's my shortcomings not the product's shortcomings that make me say "almost". The set screws are really small and hard to see or insert. You have to put them in the right way or you cannot use an allen wrench to tighten them. In my younger days, before cataracts, I wouldn't have had any problem seeing these set screws. But today, it was difficult getting them screwed in and tightened. I would have liked the set screws to be locked into the holes so I only had to tighten them and couldn't take them out or lose them.I am building a linear stage which uses a 5/16" threaded rod and a 12VDC motor with a 4mm shaft. I needed to connect them together. I talked with employees at the big box hardware stores and department stores -- they had no idea what to use to make the connection. It wasn't until I realized that the motor manufacturer would probably have good ideas for how to make the connection that I found these connectors.

    4.0 out of 5 stars good product

    p.s. · September 6, 2025

    works as expected

    5.0 out of 5 stars good value for the money

    D.C. · April 15, 2025

    size was excellent, they fit what I used them for. They feel tight with no slipping and did not strip out .

    5.0 out of 5 stars Good quality

    B.P. · August 13, 2025

    Good quality

    3.0 out of 5 stars Missing one of the set screws

    F.Y. · January 31, 2024

    Connectors came in a small plastic bag inside a sealed box. Fortunately for me, I had other set screws to compensate for the missing part but unfortunate for you if you do not.

    5.0 out of 5 stars Well made, works as it should

    s. · September 7, 2024

    Honestly it would be hard not to make a good set of shaft couplers like these. They work great, and will probably be reusable forever unless you make the mistake of stripping the threads somehow. The set screws (grub screws) included could be a mm or more longer depending on how you use the part, but if you are coupling shafts that fill the holes entirely then they will work just fine. In my case I was trying to grip a shaft that was undersized and this was the closest coupler I could find for my application.

    High Quality, Good Product

    s. · August 18, 2025

    Worked perfect to connect two ends in a stereo amplifier I was trying to fix.

    Does the job so far.

    R.M. · August 20, 2024

    Using this to connect a motor to a bike trainer to create a generator. Seems OK so far but needs to be aligned correctly. I have a flexible one on order just in case.

    bien fait.

    J.F.D. · October 3, 2025

    Qualité!

    Adapter

    W.G. · February 8, 2025

    Works great from round shaft to hex

    Good product. Well made

    D. · May 25, 2024

    Works as described.

    Similar suggestions by Bolo

    More from this brand

    Similar items from “Set Screw”