Dai Hong Phat

Shrink Discs RfN 4091

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Key Features of Shrink Discs RfN 4091

The Ringfeder RfN 4091 series have a wider structure and particularly strong outer rings, offering the highest transfer values, also has Vietnamese name "thiết bị bóp trục RfN 4091". This makes it ideal for applications with extremely static or dynamic loads. Additionally, the preload force can be precisely adjusted to suit the specific application requirements.

- Heaviest, Highly Robust Series: Designed for maximum transmission values even under extreme loads, ensuring reliable performance in demanding applications.

- 3-Part Design: The three-part construction offers enhanced stability and durability, making it suitable for heavy-duty applications.

- Inner Diameter (d): 50-500 mm, accommodates a wide range of shaft sizes, providing flexibility for various industrial uses.

- Outer Diameter (D): 95-850 mm, suitable for a broad range of hub sizes, ensuring compatibility with different mechanical systems.

- Overall Length (L): 44.5-291 mm, the robust and substantial design allows for efficient installations and reliable performance in diverse settings.

- Torque (T): 1,800-2,000,000 Nm, capable of handling an exceptionally broad range of torque values, from moderate to extremely high, making it ideal for various demanding industrial applications.

Shrink Discs RfN 4091 product specifications

RfN 4091 Catalogue	RfN 4091 Installation Instruction

Shrink Discs dimensions [mm]				T_A	T	Gw	^Tmax
d x D	d_w	d₁	L	[Nm]	[Nm]	[kg]	[mm]
50 x 95	38	73	44.4	25	1800	1.4	2250
	40				2100		2625
	42				2400		3000
55 x 105	42	78	44.5	28	2250	1.7	2813
	45				2700		3375
	48				3200		4000
62 x 115	48	85	44.5	30	2950	2	3688
	50				3400		4250
	52				3600		4500
68 x 118	50	93	49	30	3600	2.1	4500
	55				4600		5750
	60				5700		7125
75 x 145	55	105	53	59	4600	3.8	5750
	60				5700		7125
	65				7000		8750
80 x 145	60	105	53	59	5700	3.6	7125
	65				7000		8750
	70				8400		10500
90 x 160	65	116	57	59	6700	4.8	8375
	70				8100		10125
	75				9600		12000
100 x 170	70	126	61	59	8800	5.6	11000
	75				10000		12500
	80				12200		15250
110 x 185	75	138	67	59	11000	7.6	13750
	80				12900		16125
	85				14700		18375
125 x 215	85	160	73	100	15000	11	18750
	90				17500		21875
	95				20000		25000
135 x 212	90	172	85	100	18800	10.7	22500
	95				21600		27000
	105				27800		34750
140 x 300	90	220	106	250	36700	35.5	45850
	100				47000		58750
	110				58700		73350
155 x 263	105	197	91.5	100	28900	19.6	36100
	110				32400		40500
	115				36200		45250
---	---	---	---	---	---	---	---

...See more at: Specification of Ringfeder RfN 4091...

Why Choose Shrink Discs RfN 4091?

The Shrink Disc RfN 4091 connections are suitable for securing all types of hubs onto shafts and axles, replacing traditional fits like keys and polygon connections. They are highly reliable for static, dynamic, and impact loads, offering easy mounting with standard tools and quick installation. Additionally, they ensure low susceptibility to contamination and easy removal, making them a versatile and efficient solution.

Ringfeder RfN 4091 is mainly used in cases where the wall thickness of hollow shafts is extremely thin or where hollow shafts have low yield limits due to the material being grey cast iron or aluminium such as: aluminium conveyor pulleys or thin-walled levers.

Dai Hong Phat Corp is a representative specializing in providing all Ringfeder Shrink Discs throughout Vietnam:

- Dai Hong Phat is an importer and distributor of all 100% genuine shaft tightening equipment of the Ringfeder brand throughout Vietnam and Southeast Asia.

- Dai Hong Phat commits to more than 15 years of prestige, ensuring that customers can buy 100% genuine Ringfeder RfN 4091 with high quality and the best price on the market.

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