Motion Control Couplings
STAINLESS BELLOWS | ALUMINUM DISC MEMBRANE | OLDHAM COUPLING
UNIVERSAL LATERAL COUPLING | MULTI BEAM COUPLING | MINI JAW COUPLING
COMPARISON CHART

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ALUMINUM DISC MEMBRANE The membrane, or disc coupling is similar in nature to the bellows coupling in that it is torsionally stiff and also offers near infinite life as a zero backlash design. High speeds (up to 25,000 rpm) can be attained by this design. In fact, the membrane coupling offers the highest speed and highest torque capacity among the zero backlash range. These couplers exploit the flexural properties of heat-treated, cold rolled stainless spring steel membranes to furnish misalignment ability as well as torsional rigidity. Hubs and spacers are offered from aluminum alloy.

Coupler Size	Ref.	Peak Torque IN#	Misalignment			Flexural Stiffness
			Angular ± deg	Radial ± in.	Axial ± in.	Torsional IN#/rad	Angular lb./deg	Radial lb./0.001"	Axial lb./0.001"
19	460 & 462	8	2	0	0.004	1945	0.090	--	<0.040
	464 & 466		4	0.008	0.008	1325	0.056	0.080
	468 & 470		4	0.016	0.008	1280	0.067	0.023
26	460 & 462	20	2	0	0.004	5175	0.169	--	<0.040
	464 & 466		4	0.008	0.008	3405	0.112	0.211
	468 & 470		4	0.016	0.008	3540	0.090	0.040
33	460 & 462	50	1.5	0	0.004	13805	0.450	--	<0.046
	464 & 466		3	0.008	0.008	8275	0.225	0.274
	468 & 470		3	0.016	0.008	8670	0.270	0.074
41	460 & 462	100	1	0	0.004	23985	0.899	--	<0.046
	464 & 466		2	0.008	0.008	18520	0.450	0.571
	468 & 470		2	0.016	0.008	17875	0.450	0.143

Coupler Size	Set Screw Hubs	Clamp Hubs	ØD in.	L in.	L1 in.	ØB1,ØB2 max in.	ØB3 in.	Fasteners			Moment of inertia lb. in2x 10-5	Mass lb.
								Screw	Torque IN#	Wrench
	Coupler Ref
19	460.19	--	0.76	0.51	0.22	0.2500	N/A	M3	8.3	1.5mm	100	0.015
	464.19	--		0.77			0.28				170	0.022
	468.19	--		1.07							200	0.026
	--	462.19		0.79	0.36		N/A	M2.5	11.7	2mm	140	0.020
	--	466.19		1.05			0.28				200	0.029
	--	470.19		1.35							200	0.031
26	460.26	--	1.01	0.62	0.27	0.3937 (10mm)	N/A	M4	20.0	2mm	410	0.033
	464.26	--		0.88			0.43				550	0.040
	468.26	--		1.19							680	0.051
	--	462.26		0.86	0.39		N/A	M2.5	11.7	2mm	440	0.035
	--	466.26		1.12			0.43				550	0.044
	--	470.26		1.42							720	0.055
33	460.33	--	1.32	0.89	0.39	0.5000	N/A	M5	40.8	2.5mm	1910	0.082
	464.33	--		1.26			0.55				2730	0.115
	468.33	--		1.69							2840	0.121
	--	462.33		1.20	0.55		N/A	M3	21.5	2.5mm	1780	0.082
	--	466.33		1.58			0.55				2490	0.112
	--	470.33		2.00							2600	0.121
41	460.41	--	1.63	1.07	0.47	0.6299 (16mm)	N/A	M6	67.3	3mm	5260	0.152
	464.41	--		1.51			0.68				7690	0.214
	468.41	--		1.97							8370	0.236
	--	462.41		1.46	0.67		N/A	M4	50.0	3mm	5230	0.159
	--	466.41		1.91			0.68				7590	0.221
	--	470.41		2.37							8100	0.240

Coupler Size	inch bores +0.0012/-0						metric bores +0.03/-0mm
	0.125	0.1875	0.250	0.375	0.500	0.625	3	4	5	6	8	9	10	11	12	14	15	16
19
26
33
41
Bore Ref.	16	19	24	31	36	41	14	18	20	22	28	30	32	33	35	38	40	42
Corresponding bore adaptor			253		259				251		255		257					260

BOLTED SERIES

Coupler Size	Ref.	Peak Torque IN#	Misalignment			Flexural Stiffness
			Angular ± deg	Radial ± in.	Axial ± in.	Torsional IN#/rad	Angular lb./deg	Radial lb./0.001"	Axial lb./0.001"
41	660 & 662	100	1	0	0.004	35.4	0.831	--	<0.046
	664 & 666		2	0.008	0.008	24.7	0.360	0.564
	668 & 670		2	0.016	0.008	23.0	0.360	0.131
52	660 & 662	265	1	0	0.004	66.3	2.247	--	<0.050
	664 & 666		2	0.008	0.008	42.4	1.124	1.787
	668 & 670		2	0.016	0.008	42.4	1.124	0.325
66	660 & 662	530	1	0	0.004	168	18.880	--	<0.050
	664 & 666		2	0.008	0.008	106	5.169	2.163
	668 & 670		2	0.016	0.008	106	5.169	0.531

Coupler Size	Set Screw Hubs	Clamp Hubs	ØD in.	L in.	L1 in.	ØB1,ØB2 max in.	ØB3 in.	Fasteners			Moment of inertia lb. in2x 10-5	Mass lb.
								Screw	Torque IN#	Wrench
	Coupler Ref
41	660.41	--	1.63	1.45	0.67	0.6299 (16mm)	N/A	M6	67	3mm	3960	0.138
	664.41	--		1.89			0.66				5740	0.198
	668.41	--		2.35			0.68				6110	0.223
	--	662.41		1.45			N/A	M4	50	3mm	4780	0.163
	--	666.41		1.89			0.66				6860	0.223
	--	670.41		2.35			0.68				7680	0.247
52	660.52	--	2.05	1.74	0.79	0.7874 (20mm)	N/A	M6	67	3mm	12780	0.273
	664.52	--		2.17			0.86				18760	0.370
	668.52	--		2.85							23370	0.458
	--	662.52		1.97	0.90		N/A	M5	101	4mm	19340	0.362
	--	666.52		2.39			0.86				25525	0.459
	--	670.52		3.07							30310	0.545
66	660.66	--	2.60	2.38	1.10	1.133 (28mm)	N/A	M8	162	4mm	45685	0.599
	664.66	--		2.90			1.12				61640	0.793
	668.66	--		3.73			1.18				79960	0.985
	--	662.66		2.22	1.02		N/A	M5	101	4mm	48520	0.593
	--	666.66		2.74			1.12				65950	0.787
	--	670.66		3.57			1.18				83100	0.978

Coupler Size	inch bores +0.0012/-0						metric bores +0.03/-0mm
	0.250	0.375	0.500	0.625	0.750	1.000	8	9	10	11	12	14	15	16	18	19	20	24	25	28
41
52
66
Bore Ref.	24	31	36	41	47	53	28	30	32	33	35	38	40	42	45	46	48	51	52	54
Corresponding bore adaptor	253		259			262	255		257					260			261			263

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