One Diaphragm Coupling, 6mm to 14mm

5 out of 5 based on 1 reviews | Write a review

$116.98

Low cost one diaphragm shaft coupler for sale, bore 6mm to 14mm, diameter 34mm, length 32mm, low inertia, high running speed, used to connect CNC machines, stepper motors and servo motors.

φd1 Inner Diameter Size (mm) *
φd2 Inner Diameter Size (mm) *
WIth Keyway *

SKU: ATO-SC-GSM3432

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Delivery date: 6-12 days

Overview
Proposition 65 Warning

High torque flexible shaft coupling bore 6mm to 14mm, rated torque 5N.m, speed of 10000rpm, length 32mm, diameter 34mm, shaft coupling has elastic elements that play the role of buffering and damping to protect the prime mover and the working machine from damage or damage.

Specification

Model	ATO-SC-GSM3432
Length	32mm
Width	34mm
Bore	6mm to 14mm
Rated Torque	5 N.m
Allow Eccentricity	0.1mm
Allowable Deflection Angle	1∠°
Allowable Axial Deviation	±0.18
Allowable Speed	10000 RPM
Static Torsional Stiffness	5700N.m/rad
Moment of Inertia	8.0 x 10^-6
Weight	61g
Certificate	ISO9001, REACH, RoHS
Warranty	12 Months

Single Diaphragm Flexible Coupling Dimension (unit: mm)

Diaphragm coupling dimension

d1/d2 Inner Diameter Size	Φd	L	LF	S	F	M	Tightening Torque
5-6-6.35-7-8-9-9.52-10-11-12-12.7-14	34	32	14.25	3.5	4.85	M4	3.5 N.m

Details

Diaphragm coupling detail

Keyway

Shaft Diameter	Keyway Standard Machining Dimensions				Keyway Size
d1/d2	b		t		(bXh)
d1/d2	Width of groove	Tolerance	Depth of groove	Tolerance	(bXh)
φ6~φ7.9	2	±0.0125	1	±0.10	2x2
φ8~φ10	3	±0.0125	1.4		3x3
φ10.1~φ12	4	±0.0150	1.8		4x4
φ12.1~φ17	5		2.3		5x5
φ17.1~φ22	6		2.8		6x6
φ22.1~φ30	8	±0.0180	3.3	±0.20	8x7
φ30.1~φ38	10	±0.0180	3.3		10x8
φ38.1~φ44	12	±0.0215	3.3		12x8
φ44.1~φ50	14		3.8		14x9
φ50.1~Ф58	16		4.3		16x10
φ58.1~φ65	18		4.4		18x11

Keyway Machining Standard Drawing

Tips for choosing a shaft coupling type

1. The size and nature of the torque to be transmitted, the requirements for buffering and damping functions, and whether resonance may occur.
2. The relative displacement of the axis of the two shafts caused by manufacturing and assembly errors, shaft load and thermal expansion deformation, and relative movement between components.
3. The allowable dimensions and installation methods are the operating space necessary for ease of assembly, adjustment and maintenance. For large shaft couplings, it should be possible to disassemble and assemble without the need for axial movement of the shaft.

*WARNING: This product can expose you to chemicals, including lead, which is known to the State of California to cause birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.

Existing reviews of One Diaphragm Coupling, 6mm to 14mm

It performed excellently

I've been using this diaphragm coupling on my CNC equipment for a while, and it performs exceptionally well. It connects firmly, runs stably at high RPM with little vibration, and offers great damping. The flexible design effectively protects motors and machines.

From: Roy | Date: 17/03/2026

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