Tyre Couplings F50 - Industrial Tyre Couplings

Size	TYPE F & H								TYPE B								A	C	‡ G	† M	No. of screws per flange
Size	Bush No.	Max Bore	L	D	E	F	ξ J	Approx Weight Kg *	Max Bore	Min Bore	L	D	E	F	Set Screw on key	Approx Weight Kg *	A	C	‡ G	† M	No. of screws per flange
F50	1210	32	78	79.0	25	39.0	38	3.1	38	16.00	92	79	32	46.0	M5	4.0	133.5	100	43	28	4

The F50 Tyre Coupling is a robust flexible coupling designed for medium-duty power transmission applications. Stepping up in capacity from the smaller F45, the F50 model offers higher torque transmission while maintaining the superior shock absorption and misalignment capabilities that define the F-Series range.

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Key Specifications

The F50 offers increased power capacity for demanding setups. Below are the standard technical specifications:

Parameter	Value
Model Size	F50
Nominal Torque	160 Nm
Max. Torque (Peak)	390 Nm
Max. Rotational Speed	4,500 RPM
Power Rating (at 1440 RPM)	~24 kW (approx)
Taper Lock Bush Size	1210
Max. Bore Size	32 mm (with 1210 Bush) / 50 mm (Max with B Flange)
Misalignment Capability	4° Angular \| 1.1mm Parallel \| 1.3mm End Float

How It Works

The F50 operates on the same proven "shear" principle as the rest of the tyre coupling family.

Power Transfer: Torque is transmitted from the motor side flange, through the heavy-duty rubber tyre, to the driven flange.
Cushioning Effect: The substantial rubber element acts as a buffer. When the system experiences a sudden surge in load (shock load), the tyre twists to absorb the impact energy, protecting shafts and bearings from stress.
Flexibility: It handles simultaneous misalignment (angular, parallel, and axial) without exerting high reaction forces on the support bearings.

Benefits of F50 Couplings

Higher Torque Capacity: Delivers 160 Nm of nominal torque, making it suitable for slightly larger motor frames than the F45.
"Fit and Forget": Requires no lubrication or regular maintenance, significantly lowering operational costs.
Quick Element Replacement: The split tyre can be changed in minutes without disturbing the alignment of the motor or driven machine.
Equipment Protection: Acts as a mechanical fuse; in the event of a catastrophic jam, the tyre will fail sacrificially to save expensive gears and shafts.
Fire Resistance Options: Available with FRAS (Fire Resistant Anti-Static) tyres for use in hazardous environments like underground mining.

Typical Applications

The F50 is a workhorse for general industrial machinery, commonly found in:

Process Pumps: Medium-sized centrifugal and positive displacement pumps.
Compressors: Reciprocating compressors where shock damping is critical.
Conveyors: Belt drives in manufacturing and quarrying.
Fans & Blowers: Extraction fans and air handling units.
Crushers & Screens: Light-duty auxiliary drives in mining.

Summary

The F50 Tyre Coupling strikes a perfect balance between size and performance. With a 160 Nm torque rating and a max speed of 4,500 RPM, it serves as a reliable, lubrication-free solution for medium-power drive systems. Its ability to forgive misalignment and dampen vibration makes it an industry standard for protecting valuable plant assets.