GLN-Aluminum alloy double diaphragm coupling

>The shaft sleeve is made of high-strength aluminum alloy

>The round diaphragm adopts 304 stainless steel

>High torque rigidity, can accurately control the rotation of the shaft, can carry out high precision control

> Designed specifically for servo, stepper motor

>The gap-free shaft and shaft sleeve connection is suitable for forward and reverse rotation

> Low inertia, suitable for high-speed operation

> Clamping screw tightening method

>Long service life

Product Introduction

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型号举例/Example: GLG - □□ × □□ - □□ × □□

Series Diameter Length d1Bore d2Bore

Note: If additional keyways are required, there can be customized in non-standard form. Please add K after the model shaft diameter size. For example, GLN-32 × 40-8K × 9K means that both inner holes have keyway openings

External dimensions table Unit:mm

Products model	The inner diameter dimensions of the common used d1/d2	ΦD	L	LF	LP	S	F	M	Tighten torque (n.m)
GLN-19×27	4-5-6-6.35-7-8	19	27	9.1	5.2	1.8	3.3	M2.5	1
GLN-25×31	5-6-6.35-7-8-9-9.252-10-11-12	25	31	10.7	4.4	2.6	3.9	M3	1.5
GLN-32×40	8-9-9.525-10-11-12-12.7-14-15-16	32	40	12.25	8.5	3.5	4.5	M3	1.5
GLN-40×44	8-9-9.525-10-11-12-12.7-14-15-16-18-19	40	44	14.25	6.0	4.5	5	M4	3.5
GLN-50×57	8-9-9.525-10-11-12-12.7-14-15-16-18-19-20-22-24	50	57	18.6	10.2	4.8	5	M4	3.5

Note:The inner diameters of the inner holes at both ends of the coupling can be freely combind from small to large.The inner holes are machined with H7 standard tolerance,and the inner diameter dimensions marked in the table are for reference only.Please contact us for detailed parameters of the aperture you require.

Technical parameter table Unit:mm

Products model	Torque (N.m)	Allowable eccentricity (mm)	Allowable deviation angle (∠°)	Allowable axial deviation (mm)	Allowable rotational speed (RPM)	Static torsional stiffness (N.m/rad)	Moment of inertia (N.m)	Coupling weight (g)
GLN-19×27	1	0.15	2	±0.20	15000	450	6.7×10⁻⁷	20
GLN-25×31	2	0.2	2	±0.40	10000	850	2.3×10⁻⁶	38
GLN-32×40	2.2	0.25	2	±0.60	10000	1600	9.0×10⁻⁶	80
GLN-40×44	3.5	0.3	2	±0.60	10000	3200	2.1×10⁻⁵	120
GLN-50×57	9	0.3	2	±0.60	10000	3900	3.5×10⁻⁵	160

Note: The above inertia moment and various technical parameters are measured from the standard of large aperture to the value of large fixed torque, which is related to the durability of the coupling itself. The larger the outer diameter, the greater the force, and the smaller the outer diameter, the higher the allowable speed.

Keyway Processing Dimensions table Unit:mm

Shaft diameter size	Standard machining dimensions for keyways				Keyway size (b×h)	Standard drawing for keyway processing
d1/d2	b		t		(b×h)
d1/d2	Slot width	Tolerance	Slot depth	Tolerance	(b×h)
Φ6~Φ7.9	2	±0.0125	1.0	0.10	2×2
Φ8~Φ10	3	±0.0125	1.4		3×3
Φ10.1~Φ12	4	±0.0150	1.8		4×4
Φ12.1~Φ17	5		2.3		5×5
Φ17.1~Φ22	6		2.8		6×6
Φ22.1~Φ30	8	±0.0180	3.3	0.20	8×7
Φ30.1~Φ38	10	±0.0180	3.3		10×8
Φ38.1~Φ44	12	±0.0215	3.3		12×8
Φ44.1~Φ50	14		3.8		14×9
Φ50.1~Φ58	16		4.3		16×10
Φ58.1~Φ65	18		4.4		18×11