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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OLDHAM COUPLING The Oldham coupling is a 3-piece design, consisting of aluminum alloy hubs and a back-lash-free acetal disc, which slides along 2 axes. Misalignment is accomplished thru sliding contact, not by flexure. This coupling design is used for general purpose applications up to 4,000 rpm. The serviceable acetal disc can be replaced at low cost, and outlasts fatigue-prone monobloc couplings.

(At 68°F with standard acetal disc)

Coupler Size	Peak Torque IN#	Misalignment @ 3,000 rpm			Torsional		Static break torque IN#
		Angular ± deg	Radial ± in.	Axial ± in.	Rate deg/IN#	Stiffness IN#/rad
06	0.5	0.5	0.004	0.002	0.65	88	6
09	1.8		0.004	0.002	0.22	265	18
13	4.4		0.004	0.002	0.10	575	35
19	15		0.008	0.004	0.056	1017	88
25	35		0.008	0.004	0.032	1814	115
33	80		0.008	0.006	0.011	5443	465
41	150		0.010	0.006	0.0054	10620	500
50	265		0.010	0.008	0.0047	12170	840
57	390		0.010	0.008	0.0028	23100	1325

Coupler Type & Size		Set Screw Style	Clamp Style	ØD in.	L in.	L1 in.	L2 in.	ØB1 max bores	Fasteners		Moment of inertia lb. in2 x 10-5	Mass lb.	Acetal(black) standard
													DISC REF
		Hub ref							Screw	Torque IN#
	06	232.06	--	0.25	0.50	0.15	0.20	0.1250	M3	8.3	20	0.006	236.06
	09	232.09	--	0.38	0.50	0.15	0.20	0.1969 (5mm)	M3	8.3	60	0.009	236.09
	13	232.13	--	0.50	0.63	0.17	0.29	0.2500	M3	8.3	90	0.024	236.13
	19	232.19	--	0.75	0.87	0.25	0.37	0.3150 (8mm)	M3	8.3	230	0.029	236.19
		--	235.19						4-40	20.6
	25	232.25	--	1.00	1.12	0.34	0.44	0.4724 (12mm)	M4	20	860	0.067	236.25
		--	234.25						M3	21.5
	33	243.33	--	1.31	1.89	0.51	0.87	0.6299 (16mm)	M4	20	4370	0.190	236.33
		--	245.33						M3	21.5
	41	232.41	--	1.63	2.00	0.66	0.69	0.7874 (20mm)	M5	62	11370	0.326	236.41
		--	234.41						M4	50
	19	450H19	--	0.75	1.02	0.37	0.28	0.3150 (8mm)	M4	20	201	0.029	236.19
		--	453H19						4-40	20.6
	25	450H25	--	1.00	1.28	0.46	0.36	0.4724 (12mm)	M5	62	860	0.068	236.25
		--	452H25						M3	21.5
	33	454H33	--	1.31	1.89	0.59	0.71	0.6299 (16mm)	M6	67	3872	0.163	236.33
		--	456H33						M3	21.5
	41	450H41	--	1.63	2.00	0.70	0.60	0.7874 (20mm)	M6	67	10860	0.313	236.41
		--	452H41						M4	50
	50	450H50	--	1.97	2.35	0.81	0.72	1.0000 (25mm)	M8	162	25805	0.459	236.50
		--	452H50						M5	100
	57	450H57	--	2.25	3.07	1.12	0.83	1.181 (30mm)	M8	162	59503	0.796	236.57
		--	452H57						M6	170

Coupler Size	inch bores +0.0012/-0								metric bores +0.03/-0mm
	0.125	0.1875	0.250	0.375	0.500	0.625	0.7500	1.000	2	3	4	5	6	8	10	12	14	15	16	18	19	20	24	25	30
06			.								.	.	.
09													.	.	.	.	.
13														.	.	.	.	.	.	.
19															.	.	.	.	.	.	.	.	.	.	.
25
33
41
50									.
57									.
Bore Ref.	16	19	24	31	36	41	47	53	11	14	18	20	22	28	32	35	38	40	42	45	46	48	51	52	56

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