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Fixed Couplers are used to Connect Stepper Servo AC DC motors to Ball screw or Lead screw they are widely used to build CNC Router, CNC Plasma, CNC Mill, CNC Laser and many automation machines.
Widely used in hardware,, and the occasion of the mechanical transmission.
Specification:
Material: Aluminum
Color: Silver Tone
Suitable For: connecting two axis with different diameters, can also be connected with a motor axis, or connecting shafts of different diameters. Between the transmission member can do both screw can do model remote control boat propeller shaft and the motor power.
Connection diameter: 4mm to 6mm
Top Thread Size: M3
Through Angle:180 Degree
Dimensions: 12 x 26mm/0.47 x 1.02 inch(D*L))
Note: The color of the item may vary slightly due to photography and your own computer
Package included:
1 x Motor Rigid Coupling
1 x Hex Head Spanner
4 x Screws
NP-HOBBYZ
2025-08-18 18:37:09
Used this in a brushless Traxxas blast build to replace the awful plastic coupler. Held up great until the boat caught on fire, was one of the few parts that remained intact.
M. Hurt
2025-08-04 15:19:45
Well made... I ordered the wrong size, but you never know when I might use it!
Mark
2025-08-01 13:13:04
Works perfect
Moggie
2025-06-29 10:31:14
Used it to replace a broken antenna base
Tom Contos
2025-05-11 17:55:23
Worked perfect for my application. Connecting drive shafts on a small motor.Used to connect 2mm shaft to 1/8 shaft. I had to bore out one end to .125 to adapt the product. Simple fix to get my unit going.
DSC
2025-03-28 10:13:59
Using this for a Proboat Jet Jam brushless motor mod, it's a drop in replacement for the stock part. Fitment was perfect.
albert bloch
2025-03-27 15:17:07
Perfect fit for the cost. I used it to connect prop shaft and motor for my Billing model boat.
HENRY BUCKI
2025-03-05 14:51:06
i drilled the shaft hole to 1/8 all the way thru coupler .I connected one end to a dremel tool grinding stone and tightened set screw. I used a 1/8 hardened wire stock from hardware store a made a perfect extension that i needed to get inside a gun magazine to get rid of a ruff spot .
Bernard Dandurand
2025-02-07 13:49:49
Do not buy this. This is a plastic piece AND the dimensions are NOT accurate. The 5 mm side is actually 4.8 mm so a 5 mm rod does not fit. Chineseum typical.
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