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Befenybay 2PCS 5mm to 8mm Aluminium Plum Flexible Shaft Coupling D25 L30 5x8mm Connector Flexible Coupler for 3D Printer CNC Machine and Servo Stepped Motor（5x8mm）

4.5 4.5 out of 5 stars 90 ratings
$13.99 $7.00 per Item
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D25 L30
5-8mm
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Purchase options and add-ons

Material Aluminum
Fastener Type Coupling
Exterior Finish Silver
Metal Type Aluminum
Brand Befenybay

About this item

  • Size:L30mm x D25mm/1.18inch x 0.98inch( L*D) Bore Diameter: 5mm to 8mm / 0.19inch to 0.31inch
  • Material: Aluminum alloy Type: Plum shaped
  • Super torque can absorb vibration, appropriate a large torque transmission.High hardness,and excellent response,not easy to loosen
  • Flexibility of coupling shaft removes stress between the motor and driving components
  • The shaft couplers are mainly used for CNC machines,servo motors, spindle, step motor etc
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Befenybay 2PCS 5mm to 8mm Aluminium Plum Flexible Shaft Coupling D25 L30 5x8mm Connector Flexible Coupler for 3D Printer CNC
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Befenybay 2PCS 5mm to 8mm Aluminium Plum Flexible Shaft Coupling D20 L25 Connector Flexible Coupler for CNC Machine and Servo
$12.99
Get it as soon as Monday, May 13
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Sold by Befenybay and ships from Amazon Fulfillment.
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Product details

  • Package Dimensions ‏ : ‎ 2.4 x 1.9 x 0.5 inches; 2.4 ounces
  • Item model number ‏ : ‎ BE-048-1-fba
  • Date First Available ‏ : ‎ July 31, 2019
  • Manufacturer ‏ : ‎ befenybay
  • ASIN ‏ : ‎ B07VVH3647
  • Customer Reviews:
    4.5 4.5 out of 5 stars 90 ratings

Product Description

PLEASE NOTE: The shaft coupler is not elastic, can not modify the concentricity.Shaft must be located in a straight line. If your equipment is eccentric already, then it will make noise and cause off-centering. Please be cautious before your final purchasing, thank you. Product Name: Shaft Plum Coupling Type: Plum Shaped Shaft Usage: 5mm to 8mm / 0.19inch to 0.31inch Size: :L30mm x D25mm/1.18inch x 0.98inch( L*D) Material: Aluminum Alloy,Polyurethane Main Color: Silver Tone,Red Weight: 31.5g x 2pcs The shaft couplers are mainly used for CNC machines,servo motors, spindle, step motor etc Package Content: 2 x Shaft Plum coupling 1x Allen Key

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Customer reviews

4.5 out of 5 stars
4.5 out of 5
90 global ratings

Top reviews from the United States

Amazon Customer
5.0 out of 5 stars They Good
Reviewed in the United States on September 21, 2023
Size: D25 L30Style: 8-10mmVerified Purchase
They came fast and are good quality.
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Jared
5.0 out of 5 stars Great Holding Power
Reviewed in the United States on January 1, 2021
Size: D25 L30Style: 5-8mmVerified Purchase
Fits nicely on the A8-Plus, I just had to bias them slightly towards the motor to let the carriage descend all the way down.
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Ashley Alvarado
5.0 out of 5 stars So far they have been pretty good
Reviewed in the United States on September 12, 2020
Size: D25 L30Style: 6.35-8mmVerified Purchase
Only issue i've had it seemed to lose hold once, not sure how but i did see it off. Other than that just fine.
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Kurt Bilinski
3.0 out of 5 stars If disassembled, expect creaking noises
Reviewed in the United States on October 23, 2023
Size: D25 L30Style: 8-12mmVerified Purchase
If you disassemble it for any reason, expect it to make clicking and creaking sounds once put into service, which is apparently common with this design. Searching online found that putting some oil or grease in it should help.
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AP
5.0 out of 5 stars Works well
Reviewed in the United States on January 14, 2021
Size: D25 L30Style: 8-10mmVerified Purchase
So far so good!
One person found this helpful
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Kindle Customer
5.0 out of 5 stars 3d Printer
Reviewed in the United States on September 26, 2019
Size: D25 L30Style: 5-8mmVerified Purchase
Massive improvement over the original couplers.
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Oldguy
3.0 out of 5 stars Seperates
Reviewed in the United States on March 12, 2021
Size: D25 L30Style: 5-8mmVerified Purchase
I purchased the coupler because it looked strong and of good quality. For some reason one of them started to separate the upper part from the lower. Yes, I do have Z-axis wobble but not to an extend that the forces would separate the couple and the lead screw is true. The coupler need extreme force on the clamping screws to stay and hold securely. Not sure if they should be mounted butt on or if there is supposed to be a gap between.
As with most components these days, there is little or no instruction, at least not easy to find.
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Keith Gadberry
2.0 out of 5 stars Causes wobble
Reviewed in the United States on January 28, 2021
Size: D25 L30Style: 5-8mmVerified Purchase
The tolerances on these couplings is too loose, causing them to require excessive force to properly tighten and the holes to not be aligned.
One person found this helpful
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Top reviews from other countries

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RexusLexus
5.0 out of 5 stars Good Quality
Reviewed in Canada on August 7, 2022
Size: D25 L30Style: 10-10mmVerified Purchase
Not much to say, they work well for my purpose. Connecting NEMA23 10mm shaft motors to SFU1610 ball screws.
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Peter Bielik
5.0 out of 5 stars nice
Reviewed in Germany on March 9, 2022
Size: D25 L30Style: 8-8mmVerified Purchase
better than expected
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Jan B.
2.0 out of 5 stars Eine Kupplung weder konzentrisch, noch parallel
Reviewed in Germany on March 16, 2023
Size: D25 L30Style: 5-8mmVerified Purchase
Eine der beiden Kupplungen ist weder konzentrisch, noch parallel, was bei einer 600mm Trapezgewindespindel zu einem fast amüsanten, sicher aber beachtlichen Rundlauffehler geführt hat.

Die andere ist mehr oder minder okay, einmessen möchte ich die aber auch nicht. Insgesamt vielleicht für Systeme geeignet, die Genauigkeiten im Millimeterbereich benötigen, nicht aber für irgendeine Art von Präzision.
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