Shrink Discs RfN 4071 Stainless Steel

The RfN 4071 Stainless Steel shrink disc features a corrosion-resistant design that creates a secure shaft-hub connection by applying uniform clamping pressure for reliable torque transmission.

In Vietnam & some Southeast Asian countries, Dai Hong Phat is an authorized distributor of Ringfeder Power Transmission.

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Key Features of Shrink Discs RfN 4071 Stainless Steel

Ringfeder RfN 4071 SST is a modern method of creating a mechanical contraction fit, also known as "thiết bị bóp trục RfN 4071 SST" or "External clamping set". It consists of one or two push rings with tapered holes and a tapered inner ring. By tightening the locking screws, the push rings are drawn together compressing the inner ring and applying pressure to the outside of the hub to clamp it to the shaft.

- Hollow Shaft Diameter: 850 mm, accommodates large hollow shafts, providing flexibility for various heavy-duty industrial applications.

- Clamp Length: 119 mm, a moderate length that ensures a secure fit on the shaft, enhancing stability and reliability.

- Shaft Diameter: 170 mm - 420 mm, suitable for a wide range of shaft sizes, offering versatility in different mechanical systems.

- Maximum Torque: 1.45E6 Nm (1,450,000 Nm), capable of handling extremely high torque values, making it ideal for demanding industrial applications that require significant force transmission.

Learn more about: Features and Advantages of Shrink Discs in Industrial Applications

Shrink Discs RfN 4071 SST product specifications

RfN 4071 SST Catalogue	RfN 4071 SST Installation Instruction

Shrink Discs dimensions [mm]				T_A	Torques or axial forces		Gw	^Tmax
d x D	d_w	d₁	L	[Nm]	T [Nm]	Fax [kN]	[kg]	[Nm]
220 x 370	160	270	114	250	95000	1190	54	118750
	165				102000	1239		127500
	170				110000	1290		137500
240 x 405	170	295	122	490	120000	1464	67	150000
	180				138000	1576		172500
	190				156000	1675		195000
260 x 430	190	321	133	490	164000	1760	82	205000
	200				184000	1880		230000
	210				205000	2010		256250
280 x 460	210	346	147	490	217000	2090	102	271250
	220				244000	2220		305000
	230				270000	2350		337500
300 x 485	230	364	155	490	275000	2431	118	343750
	240				295000	2567		368750
	245				315000	2636		393750
320 x 520	240	386	155	490	312000	2647	131	390000
	250				340000	2786		425000
	260				374000	2900		467500
340 x 570	250	408	169	490	390000	3119	186	487500
	260				422500	3249		528125
	270				460000	3400		575000
350 x 580	270	432	175	490	442000	3276	195	552500
	280				480000	3430		600000
	285				500000	3500		625000
360 x 590	280	432	175	490	463000	3310	204	578750
	290				502000	3461		627500
	295				522000	3536		652500
380 x 645	290	458	183	840	567000	3910	239	708750
	300				610000	4080		762500
	310				658000	4248		822500
---	---	---	---	---	---	---	---	---

...See more at: Specifications of Ringfeder RfN 4071 SST...

Why Choose Shrink Discs RfN 4071 SST?

Shrink Discs arranged around a hub, with only one transmission interface gives the shaft squeeze device method distinct advantages such as providing a very concentric and balanced connection suitable for high speed applications.

Shrink Discs minimize surface tension in connected parts. The Ringfeder RfN 4071 SST are used mainly in cases where the wall thickness of hollow shafts is extremely thin or where hollow shafts have low yield strength due to the material being grey cast iron or aluminium such as: aluminium conveyor pulleys or thin-walled levers.

Dai Hong Phat Corp specializes in the supply of genuine Ringfeder Shrink Discs RfN 4071 SST throughout Vietnam

As an importer and distributor, we offer 100% genuine Ringfeder brand shaft tightening equipment across Vietnam and Southeast Asia.

With over 15 years of reputable service, Dai Hong Phat guarantees that customers can purchase high-quality, authentic Ringfeder RfN 4091 products at the best market prices.

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