INTERNAL FREEWHEELS FXN

The Internal Freewheels FXN one-way clutch from Germany features advanced Sprag Lift-Off X technology to minimize wear during overrunning. Designed for use in electric motors and inclined conveyors, it offers a compact build, high torque capacity up to 20,500 Nm, and speeds up to 5,000 rpm – ideal for high-performance, long-lasting power transmission systems.

Description

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1. Dai Hong Phat Corp. is a specialized representative providing all Ringspann Freewheels FXN products across Vietnam:

– Established since 1944 and with nearly 78 years of professional manufacturing experience in the power transmission and shock absorption industry, Ringspann possesses secret expertise and superior techniques in delivering top-quality products and services to customers.
– Our company, Dai Hong Phat, collaborates with Ringspann, a German-based partner known for producing high-quality power transmission equipment and shock absorption technology.
– Dai Hong Phat is the importer and distributor of all 100% genuine Freewheels FXN from the Ringspann brand in Vietnam.
– We commit to over 15 years of reliability, ensuring customers can purchase 100% genuine Integrated Freewheels FXN products with high quality and the best prices in the market.

2. Characteristics of the Ringspann Freewheels FXN:

– Internal Freewheels FXN is manufactured by Ringspann/Germany.
– Sprag-type one-way clutch (freewheel) without support bearings, equipped with sprag lift-off X technology to eliminate wear during overrunning operation.
– Operating principle – Sprag Lift-Off X: When the inner ring rotates at high speed, centrifugal force causes the sprags to lift off from the outer raceway (creating clearance “a”), resulting in near-zero contact and virtually no wear. This significantly increases the service life. When the speed decreases, springs return the sprags to their original position, ready to transmit torque.
– Mounting: The outer ring is press-fitted into the customer’s housing, allowing for a compact and space-saving design.
– Nominal torque capacity: Up to 20,500 Nm.
– Bore size: Up to 130 mm, with standard sizes available for quick delivery.
– Speed limit: The inner ring can freely overrun up to 5,000 rpm. At high speeds, sprags disengage from the outer ring to prevent wear. During load operation, the drive speed should not exceed 40% of the lift-off speed to ensure effective engagement.

View more product “Complete Freewheels FGR“

FOR ANY INQUIRIES OR QUOTATION REQUESTS, PLEASE CONTACT:
SALES DEPARTMENT
HOTLINE: +84906 955 057 – EMAIL: INFO@DHP-CORP.COM.VNb

3. Applications of the Integrated Freewheels FXN:

The FXN Backstop is designed for systems with high inner ring speeds during overrunning — such as electric motors or inclined conveyors — to prevent reverse rotation or backdriving when the machine stops.
Real-world examples:

In textile machinery, the FXN 66–25/100 NX freewheel is used in a creep drive system, enabling slow-speed start-up engagement and automatic disengagement at high speeds.
On inclined conveyors, the FXN 85–40/140 MX freewheel ensures the belt does not roll back when the motor stops.

4. Technical drawing of the Intergrated Freewheels FXN:

Catalogue Ringpann Freewheels FXN				Installation Ringpann Freewheels FXN

ringspann-freewheels-fxn-drawing

Freewheels size	Type	Bore d			B	D	F	J	K	L	Weight
Freewheels size	Type	Standard mm	mm	max. mm	mm						kg
FXN 31 – 17/60	NX	20*		20*	25	60P6	55	31	85	24	0,3
FXN 31 – 17/62	NX	20*		20*	25	62P6	55	31	85	24	0,4
FXN 38 – 17/70	NX	25*		25*	25	70P6	62	38	90	24	0,4
FXN 46 – 25/80	NX	30		30	35	80P6	70	46	95	35	0,8
FXN 51 – 25/85	NX	35		36	35	85P6	75	51	105	35	0,8
FXN 56 – 25/90	NX	35	40	40	35	90P6	80	56	110	35	0,9
FXN 61 – 19/95	NX	35	40	45*	26	95P6	85	61	120	25	0,9
FXN 61 – 19/106	NX	35	40		25	106P6	85	61	120	25	1,2
FXN 66 – 25/100	NX	40	45	48	30	100H7	90	66	132	35	1,1
FXN 66 – 25/110	NX	40	45	48	40	110P6	90	66	132	35	1,8
FXN 76 – 25/115	NX	50	55	60*	40	115P6	100	76	140	35	1,7
FXN 76 – 25/120	NX	50	55	60*	32	120P6	100	76	140	35	1,8
FXN 86 – 25/125	NX	50	60	70*	40	125J6	110	86	150	40	2,3
FXN 86 – 25/130	NX	50	60	70*	40	130P6	110	86	150	40	2,6
FXN 101 – 25/140	NX	75		80*	45	140P6	125	101	175	50	3,1
FXN 101 – 25/150	NX	75		80*	45	150P6	125	101	175	50	3,6
FXN 85 – 40/140	MX	60		65	45	140P6	125	85	175	60	3,2
FXN 85 – 40/150	MX	60		65	45	150P6	125	85	175	60	4,2
FXN 100 – 40/160	MX	70		80*	50	160P6	140	100	190	60	5,1
FXN 105 – 50/165	MX	80		85	62	165P6	145	105	195	62	5,8
FXN 120 – 50/198	MX	80		95	70	198H6	160	120	210	70	8,6
FXN 140 – 50/215	MX	90		110	69	215J6	180	140	245	70	14,0
FXN 170 – 63/258	MX	100		130	80	258H6	210	170	290	80	21,0

5. Why choose Dai Hong Phat Corp. as the supplier for Integrated Freewheels FXN?

– You will purchase genuine anti-reverse units directly imported from the manufacturer.
– Dai Hong Phat will protect you against the risks of counterfeit Freewheels FXN products.
– We provide full CO/CQ documentation for the anti-reverse units.
– Freewheels FXN are always available in our warehouse, ensuring prompt delivery to you.
– Technical drawings of Integrated Freewheels FXN will be provided upon request.
– Our dedicated technical team is ready to support and advise you on Ringspann Freewheels FXN products.
– We offer free consultation on optimizing solutions for your plant regarding genuine Ringspann Freewheels FXN products.
– You will receive the genuine product catalogue from Dai Hong Phat.
– We will freely convert the technical parameters and dimensions according to your requirements.
– Nationwide 24/7 delivery service is available to minimize downtime for your machinery.
– Our professional machining workshop can tailor products to your specific requirements.

Contact Dai Hong Phat now for consultation!
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———————————————–
DAI HONG PHAT ENGINEERING SERVICE TRADING MANUFACTURE COMPANY LIMITED
– HCMC Office: 22 Street 11, Khang Dien Residential Area, Duong Dinh Hoi Street, Phuoc Long B Ward, Thu Duc City.
– Ha Noi Office: No. 14-15A, 7th Floor, Charmvit Building, No. 117 Tran Duy Hung, Trung Hoa Ward, Cau Giay District.
– Tel HCM: +84.28.22536631 – 22536632 – 66818587
– Hotline: +84906 955 057 | Fax: 028.22536632
– Email: info@dhp-corp.com.vn
– Website: https://www.en.daihongphat.asia/
– Partner Website: https://www.ringspann.com/en/