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3 D Inkjet Flexible Coupling Stepper Motor (5x8x25 mm, Silver) - Pack of 2 - 3D Printer Part

4.0 out of 5 stars 36 ratings

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  • Size: 5x8x25 mm, Silver
  • Also known as: Beam coupling, helical coupling, Flexible coupling Used in Different Projects
  • (PACK OF 2) Flexible Coupling 5*8 mm
  • Outer Diameter:19mm
  • Shaft coupler Often used to connect servo motor, stepper motor,encoder, screw driving, machine platform, etc
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Product details

  • Package Dimensions : 8.99 x 8 x 2.01 cm; 100 Grams
  • Date First Available : 8 January 2018
  • Manufacturer : unknown
  • ASIN : B078WT2QSV
  • Item part number : CJET58
  • Manufacturer : unknown
  • Item Weight : 100 g
  • Customer Reviews:
    4.0 out of 5 stars 36 ratings

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Product description

3D printer Stepper Motor Flexible Coupling Coupler /Shaft Couplings 5 mm*8mm*25 mm (2Pcs)

Our Precision made, High Quality, Aluminium Helical Shaft coupling is commonly used in 3D Printers, CNC machines and other DIY projects to couple Stepper motors and 8 MM rods / threaded rods / precision trapezoidal rods. The coupler takes care of small misalignment, deviations and twists in the system. Our coupling comes with 4 grub screws installed. 

One Packet Contains 2 Coupling 

  • Please note that the bore diameter of this product is 5 MM and 8 MM on other side.

Note: A beam coupling, also known as helical coupling, is a flexible coupling for transmitting torque between two shafts while allowing for angular misalignment, parallel offset and even axial motion, of one shaft relative to the other. This design utilizes a single piece of material and becomes flexible by removal of material along a spiral path resulting in a curved flexible beam of helical shape. Since it is made from a single piece of material, the Beam Style coupling does not exhibit the backlash found in some multi-piece couplings. Another advantage of being an all machined coupling is the possibility to incorporate features into the final product while still keep the single piece integrity. Changes to the lead of the helical beam provide changes to misalignment capabilities as well as other performance characteristics such as torque capacity and torsional stiffness. It is even possible to have multiple starts within the same helix.


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Reviewed in India on 9 July 2020
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Reviewed in India on 14 February 2021
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4.0 out of 5 stars Little bit pricey
By Pruthviraj chavan on 14 February 2021
Product is fine but price is more.
Similar product is available for ₹100 - ₹120 per piece on other websites.
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Reviewed in India on 9 October 2019
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