Tyre Couplings

Couplings connect two shafts for the purposes of power transmission between the driver and the driven device.

The type of coupling used depends on factors including speed power and shaft alignment.

NBC offers an an extensive range of coupling systems to meet the specific requirements of customers, we can provide specific solutions across a diverse range of industries.

Our range includes

Rigid
HRC
JAW
Grid

Key Features

Wide stock range for most industrial purposes
Can absorb shock loading & drive misalignment resulting in extended machine life
Maintenance-free with long life expectancy
Effective operation

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Our engineers design, manufacture, and supply components to your exact specification. Contact us to discuss your project.

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Product Overview

Tyre couplings consist of a torsionally elastic tyre mounted between two cast iron flanges which are shaft mounted by way of taper bushes. They can accommodate up to 4° shaft misalignment as well as some parallel and axial misalignments, although extremes will limit service life of both coupling and supporting bearings. Easy to inspect visually and replace without effort. Tyre couplings are suitable for use from -50C to +50C

What are the Typical Uses for Couplings?

Conveyor drives
Compressors
Roller table drives
Mixers
Pumps
Generator Sets
Line Shafts

Dimensions

Coupling size	Bush size	Max bore		A	B	C	E	G	Types F&H		Type B		Clamping screw	Weight	Inertia
		Max bore							F	D	F	D		Weight	Inertia
		mm	in						F	D	F	D		kg	2
040B		32		104		82	11	29			33	22	M5	0.8	0.0007
040F	1008	25	1″	104		82	11	29	33	22				0.8	0.0007
040H	1008	25	1″	104		82	11	29	33	22				0.8	0.0007
050B		38		133	79	100	12.5	38			45	32	M5	1.2	0.0012
050F	1210	32	1.1/4″	133	79	100	12.5	38	38	25				1.2	0.0012
050H	1210	32	1.1/4″	133	79	100	12.5	38	38	25				1.2	0.0012
060B		45		165	70	125	16.5	38			55	38	M6	2	0.0052
060F	1610	42	1.5/8″	165	103	125	16.5	38	42	25				2	0.0052
060H	1610	42	1.5/8″	165	103	125	16.5	38	42	25				2	0.0052
070B		50		187	80	144	11.5				47	35	M10	3.1	0.009
070F	2012	50	2″	187	80	144	11.5	42	44	32				3.1	0.009
070H	1610	42	1.5/8″	187	80	144	11.5	38	42	25				3	0.009
080B		60		211	98	167	12.5				55	42	M10	4.9	0.018
080F	2517	60	2.1/2″	211	97	167	12.5	48	58	45				4.9	0.018
080H	2012	50	2″	211	98	167	12.5	42	45	32				4.6	0.017
090B		70		235	112	188	13.5				63.5	49	M12	7.1	0.032
090F	2517	60	2.1/2″	235	108	188	13.5	48	59.5	45				7	0.031
090H	2517	60	2.1/2″	235	108	188	13.5	48	59.5	45				7	0.031
100B		80		254	125	216	13.5				70.5	56	M12	9.9	0.055
100F	3020	75	3″	254	120	216	13.5	55	65.5	51				9.9	0.055
100H	2517	60	2.1/2″	254	113	216	13.5	48	59.5	45				9.4	0.054
110B		90		279	128	233	12.5				75.5	63	M12	12.5	0.081
110F	3020	75	3″	279	134	233	12.5	55	63.5	51				11.7	0.078
110H	3020	75	3″	279	134	233	12.5	55	63.5	51				11.7	0.078
120B		100		314	143	264	14.5				84.5	70	M16	16.9	0.137
120F	3525	100	4″	314	140	264	14.5	67	79.5	65				16.5	0.137
120H	3020	75	3″	314	140	264	14.5	55	65.5	51				15.9	0.13
140B		130		359	178	311	16				111	94	M20	22.2	0.254
140F	3525	100	4″	359	178	311	16	67	81.5	65				22.3	0.255
140H	3525	100	4″	359	178	311	16	67	81.5	65				22.3	0.255
160B		140		402	187	345	15				117	102	M20	35.8	0.469
160F	4030	115	4.1/2″	402	197	345	15	80	92	77				32.5	0.38
160H	4030	115	4.1/2″	402	197	345	15	80	92	77				32.5	0.38
180B		150		470	200	398	23				137	114	M20	49.1	0.871
180F	4535	125	5″	470	205	398	23	89	112	89				42.2	0.847
180H	4535	125	5″	470	205	398	23	89	112	89				42.2	0.847
200B		150		508	200	429	24				138	114	M20	58.2	1.301
200F	4535	125	5″	508	205	429	24	89	113	89				53.6	1.281
200H	4535	125	5″	508	205	429	24	89	113	89				53.6	1.281
220B		160		562	218	474	27.5				155	127	M20	79.6	2.142
220F	5040	125	5″	562	223	474	27.5	92	129.5	102				72	2.104
220H	5040	125	5″	562	223	474	27.5	92	129.5	102				72	2.104
250B		190		628	254	532	29.5				162	132	M20	104	3.505

Coupling size	Flange face spacing	Gap between tyre ends	Nominal torque	Max speed	Max Parallel Misalignment	Max end float	Clamping screw
	Flange face spacing	Gap between tyre ends	Nominal torque	Max speed	Max Parallel Misalignment	Max end float	Size	Torque
	mm	mm	Nm	rpm	mm	mm	Size	Nm
40	22	2	24	4500	1.1	1.3	M6	15
50	25	2	66	4500	1.3	1.7	M6	15
60	33	2	127	4000	1.6	2	M6	15
70	23	3	250	3600	1.9	2.3	M8	24
80	25	3	375	3100	2.1	2.6	M8	24
90	27	3	500	3000	2.4	3	M10	40
100	27	3	675	2600	2.6	3.3	M10	40
110	25	3	875	2300	2.9	3.7	M10	40
120	29	3	1330	2050	3.2	4	M12	50
140	32	5	2325	1800	3.7	4.6	M12	55
160	30	5	3770	1600	4.2	5.3	M16	80
180	46	6	6270	1500	4.8	6	M16	105
200	48	6	9325	1300	5.3	6.6	M16	120
220	55	6	11600	1100	5.8	7.3	M20	165
250	59	6	14675	1000	6.6	8.2	M20	165

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Technical

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Selection of Tyre Couplings

1. Design power = motor power x service factor

2. Select suitable coupling based on shaft speed and power from the table below

3. Check that this coupling can accommodate taper bushes big enough for your shaft, if not select a larger coupling.

Service factors

	Electric motors			Internal Combustion Engines
Hours/day	<10	10-16	>16	<10	10-16	>16
Class I	0.8	0.9	1	1.3	1.4	1.5
Class II	1.3	1.4	1.5	1.8	1.9	2
Class III	1.8	1.9	2	2.3	2.4	2.5
Class IV	2.3	2.4	2.5	2.8	2.9	3

Coupling speed and power ratings

Speed	Coupling size
rpm	F40	F50	F60	F70	F80	F90	F100	F110	F120	F140	F160	F180	F200	F220	F250
100	0.25	0.69	1.33	2.62	3.93	5.24	7.07	9.16	13.9	24.3	39.5	65.7	97.6	121	154
200	0.5	1.38	2.66	5.24	7.85	10.5	14.1	18.3	27.9	48.7	79	131	195	243	307
300	0.75	2.07	3.99	7.85	11.8	15.7	21.2	27.5	41.8	73	118	197	293	364	461
400	1.01	2.76	5.32	10.5	15.7	20.9	28.3	36.6	55.7	97.4	158	263	391	486	615
500	1.26	3.46	6.65	13.1	19.6	26.2	35.3	45.8	69.6	122	197	328	488	607	768
600	1.51	4.15	7.98	15.7	23.6	31.4	42.4	55	83.6	146	237	394	586	729	922
700	1.76	4.84	9.31	18.3	27.5	36.6	49.5	64.1	97.5	170	276	460	684	850	1076
720	1.81	4.98	9.57	18.8	28.3	37.7	50.9	66	100	175	284	473	703	875	1106
800	2.01	5.53	10.6	20.9	31.4	41.9	56.5	73.3	111	195	316	525	781	972	1229
900	2.26	6.22	12	23.6	35.3	47.1	63.6	82.5	125	219	355	591	879	1093	1383
960	2.41	6.63	12.8	25.1	37.7	50.3	67.9	88	134	234	379	630	937	1166	1475
1000	2.51	6.91	13.3	26.2	39.3	52.4	70.7	91.6	139	243	395	657	976	1215	1537
1200	3.02	8.29	16	31.4	47.1	62.8	84.8	110	167	292	474	788	1172
1400	3.52	9.68	18.6	36.6	55	73.3	99	128	195	341	553	919
1440	3.62	9.95	19.1	37.7	56.5	75.4	102	132	201	351	568	945
1600	4.02	11.1	21.3	41.9	62.8	83.8	113	147	223	390	632
1800	4.52	12.4	23.9	47.1	70.7	94.2	127	165	251	438
2000	5.03	13.8	26.6	52.4	78.5	105.5	141	183	279
2200	5.53	15.2	29.3	57.6	86.4	115	155	202
2400	6.03	16.6	31.9	62.8	94.2	126	170
2600	6.53	18	34.6	68.1	102	136	184
2800	7.04	19.4	37.2	73.3	110	147
2880	7.24	19.9	38.3	75.4	113	151
3000	7.54	20.7	39.9	78.5	118	157
3600	9.05	24.9	47.9	94.2

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Enquire Now About Tyre Couplings

For any enquiries regarding Tyre Couplings, please complete our enquiry form, and a member of our technical team will respond promptly. Alternatively, you can reach out directly to one of our offices using the contact details here. Our specialists are ready to provide guidance and support tailored to your machinery and engineering needs.