Rigid Flange Coupling with Keyway for Tractor Pto

Rigid Flange Coupling with Keyway for Tractor Pto

High‑torque capacity, rigid connection, and zero backlash ensure reliable power transmission. Heat‑treated steel construction provides excellent wear and shock resistance. Easy to install and maintain

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Flange Coupling – Reliable Rigid Connection for Agricultural Machinery

Our flange coupling is engineered to provide a secure, high‑torque connection for a wide range of agricultural equipment. Its rigid, zero‑backlash design ensures precise power transmission, making it ideal for tractors, combines, harvesters, and other heavy‑duty farm machinery.

Constructed from durable carbon steel with heat‑treated surfaces, this coupling delivers excellent strength, wear resistance, and durability in dusty, high‑vibration environments. The compact flange structure allows for easy installation and accurate alignment, reducing maintenance time and improving overall system reliability.

With customizable bore sizes, keyways, and mounting configurations, our flange coupling can be tailored to fit various PTO systems, hydraulic pumps, gearboxes, and drive shafts. It is widely used in applications requiring stable, continuous power transfer, including tractor front‑end loaders, combine harvester drives, and sprayer pump systems.

Product parameters

Flange Coupling Size Table (mm)
outside diameter	inside diameter	height	keyway	Connection hole diameter	screw	Connection hole center distance	Number of connection holes	step diameter	Concave convex edge diameter
120	18-22	55	6	14	M12	95	4	70	60
120	24-30	55	8	14	M12	95	4	70	60
120	32-38	55	10	14	M12	95	4	70	60
120	40-42	55	12	14	M12	95	4	70	60
120	45	55	14	14	M12	95	4	70	60
150	28-30	75	8	15	M12/M14	110	5	87	85
150	32-38	75	10	15	M12/M14	110	5	87	85
150	40-42	75	12	15	M12/M14	110	5	87	85
150	45-50	75	14	15	M12/M14	110	5	87	85
150	55	75	16/18	15	M12/M14	110	5	87	85
150	60	75	18	15	M12/M14	110	5	87	85
190	38	105	10	16	M14	163	6	116	119
190	40-42	105	12	16	M14	163	6	116	119
190	45-50	105	14	16	M14	163	6	116	119
190	55	105	16	16	M14	163	6	116	119
190	60-65	105	18	16	M14	163	6	116	119
190	70-75	105	20	16	M14	163	6	120	119
190	80-85	105	22	16	M14	163	6	120	119
190	90	105	25	16	M14	163	6	120	119
240	60-65	135	18	18	M16	200	12	120	160
240	70-75	135	20	18	M16	200	12	135	160
240	80-90	135	22	18	M16	200	12	165	160
240	95-110	135	25	18	M16	200	12	165	160