Tyre Coupling

What is a Tyre Coupling?

Tyre couplings, also known as tire-type flexible couplings, are specialized flexible transmission components for industrial applications requiring high vibration damping and large misalignment compensation. Their core structure utilizes a vulcanized rubber tire-like elastic element, transmitting torque through the torsional deformation of the tire body. They can absorb vibrations, buffer impacts, and compensate for misalignment errors across three shafts. Mainstream models include UL, LLA, and LLB types, strictly adhering to the GB/T 5844 national standard. They possess core characteristics such as excellent vibration damping, high alignment tolerance, no lubrication required, maintenance-free operation, and strong adaptability to forward and reverse rotation. Widely applicable to industrial environments with high vibration, frequent start-stop cycles, and harsh operating conditions, such as mining, metallurgy, fans and pumps, chemicals, mixing, and conveying equipment, they are the preferred coupling for heavy-duty vibration-damping transmission systems.

 

Size	Type	Bush No.	MaxBore		Type F&H		Type H		Serve over Key	A	C	D	F	M
			mm	Inch	L	E	L	E
F40	B	-	32	-	-	-	33	22	M5	104	82	-	-	11
F40	F	1008	25	1"	33	22	-	-	-	104	82	-	-	11
F40	H	1008	25	1"	33	22	-	-	-	104	82	-	-	11
F50	B	-	38	-	-	-	43	32	M5	133	100	79	-	12.5
F50	F	1210	32	1 1/4"	38	25	-	-	-	133	100	79	-	12.5
F50	H	1210	32	1 1/4"	38	25	-	-	-	133	100	79	-	12.5
F80	B	-	45	-	-	-	55	33	M6	165	125	70	-	16.5
F80	F	1610	42	1 5/8"	42	25	-	-	-	165	125	103	-	16.5
F60	H	1610	42	1 5/8"	42	25	-	-	-	165	125	103	-	16.6
F70	B	-	50	-	-	-	47	35	M8	187	142	80	60	11.5
F70	F	2012	50	2"	44	32	-	-	-	187	142	80	50	11.5
F70	H	1810	42	1 5/8"	42	25	-	-	-	187	142	80	50	11.5
F80	B	-	60	-	-	-	55	42	M8	211	165	98	54	12.5
F80	F	2517	80	2 1/2"	58	45	-	-	-	211	165	98	54	12.5
F80	H	2012	50	2"	45	32	-	-	-	211	165	98	54	12.5
F90	H	-	70	-	-	-	63.5	49	M10	235	188	108	62	13.5
F90	F	2517	60	2 1/2"	58.5	45	-	-	-	235	188	108	62	13.5
F90	H	2517	60	2 1/2"	58.5	45	-	-	-	235	188	108	62	13.5
F100	H	-	80	-	-	-	63.5	49	M10	235	188	120	62	13.5
F100	F	3020	75	3"	64.5	51	-	-	-	235	188	125	62	13.5
F100	H	2517	60	2 1/2"	58.5	45	-	-	-	235	188	113	62	13.5
F110	B	-	90	-	-	-	75.5	63	M12	279	233	128	62	12.5
F110	F	3020	75	3"	63.5	51	-	-	-	279	233	134	62	12.5
F110	H	3020	75	3"	63.5	51	-	-	-	279	233	134	62	12.5
F120	B	-	100	-	-	-	84.5	70	M12	314	264	140	67	14.5
F120	F	3525	100	4"	79.5	65	-	-	-	314	264	144	67	14.5
F120	H	3020	75	4"	85.5	51	-	-	-	314	264	144	67	14.5
F140	B	-	130	-	-	-	110.5	4	M16	359	311	178	73	16
F140	F	3525	100	4"	81.5	65	-	-	-	359	311	178	73	16
F140	H	3525	100	4"	81.5	65	-	-	-	359	311	178	73	18
F160	B	-	140	-	-	-	117	102	M20	402	345	187	78	16
F160	F	4030	115	4 1/2"	92	77	-	-	-	402	345	197	78	16
F160	H	4030	115	4 1/2"	92	77	-	-	-	402	345	197	78	16
F180	B	-	150	-	-	-	137	114	M16	470	394	205	94	23
F180	F	4536	125	5"	112	89	-	-	-	470	394	205	94	23
F180	H	4535	125	5"	112	89	-	-	-	470	394	205	94	23
F200	B	-	150	-	-	-	138	114	M20	508	429	205	103	24
F200	F	4535	125	5"	113	89	-	-	-	508	429	205	103	24
F200	H	4535	125	5"	113	89	-	-		508	429	205	103	24
F220	B	-	160	-	-	-	154.5	127	M20	562	474	223	118	27.5
F220	F	5010	125	5"	129.5	102	-	-	-	562	474	223	118	27.5
F220	H	5010	125	5"	129.5	102	-	-	-	562	474	223	118	27.5
F250	H	-	190	-		-	161.5	132	M20	628	522	254	125	29.5

 

- Superior shock absorption and cushioning, with significant noise reduction and vibration damping effects.

The highly elastic rubber tire body possesses excellent damping characteristics, low torsional stiffness, and strong shock absorption capacity. It can efficiently absorb the impact of equipment start-up and shutdown, load vibration, and torsional oscillation, significantly reducing equipment operating noise and resonance problems. It effectively mitigates resonance damage in the transmission system, stabilizes equipment operating conditions, and improves the smoothness of overall machine operation.

- Completely lubrication-free, zero maintenance costs.

Compared to chain and gear couplings, which require regular lubrication and maintenance, tire couplings feature a pure rubber flexible transmission and a frictionless structure, requiring no lubrication or frequent maintenance. Daily routine checks only require visual inspection, significantly reducing downtime and making them suitable for 24-hour continuous production.

- Fatigue-resistant and aging-resistant with a long service life.

Made with high-elasticity, wear-resistant natural rubber and a special reinforcing formula, it is integrally molded under high temperature and pressure, resulting in high bonding strength, resistance to delamination and cracking, and strong resistance to deformation. It can withstand long-term alternating forward and reverse rotation, high-frequency start-stop, and fluctuating load conditions, exhibiting excellent fatigue resistance. Under standard operating conditions, its service life is 2-3 times that of ordinary flexible couplings.

 

 

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