Internal Freewheels Fn for Keyway Connection on The Outer Ring

• Model: Fn55
• Type: Roller
• Outer Diameter: 140mm
• Inner Diameter: 55mm
• Weight: 6kg
• Width: 80mm
• Model NO.: FN55
• Material: Gcr15
• OEM: Accept
• Delivery: 10-15days
• Transport Package: Single Box or as Your Requirements
• Specification: P6
• Trademark: SUMA or OEM
• Origin: Changzhou, Jiangsu, China
• HS Code: 84836000
• Production Capacity: 10000PCS/Month

Product Description

Internal Freewheels FN
for keyway connection on the outer ring
with rollers
 
Features
Internal Freewheels FN are roller freewheels without bearing support. The freewheel is built into the customer housing. This makes compact, space-saving fitting solutions possible. The freewheels FN are used as:
 Backstops
 Overrunning Clutches
 Indexing Freewheels
Nominal torques up to 3 000 Nm. The faces of both sides of the outer ring are provided with
grooves for torque transmission. Bores up to 60 mm.
 

Freewheel Size		Nominal torque	Max. speed		Bore d	B	D	E		F	N	P	Weight
		MN	Inner ring freewheels/	Outer ring freewheels/	mm	mm	mm	mm		mm	mm	mm	kg
		Nm	overruns min-1	overruns min-1
FN	8	18	2 800	5 400	8	20	37	19		30	6	3,0	0,1
FN	12	18	2 800	5 400	12	20	37	19		30	6	3,0	0,1
FN	15	50	2 500	5 100	15	30	47	23		37	7	3,5	0,3
FN	20	112	1 900	4 350	20	36	62	35		50	8	3,5	0,6
FN	25	220	1 550	3 350	25	40	80	40		68	9	4,0	1,1
FN	30	410	1 400	3 050	30	48	90	45		75	12	5,0	1,6
FN	35	500	1 300	2 850	35	53	100	50		80	13	6,0	2,3
FN	40	750	1 150	2 500	40	63	110	55		90	15	7,0	3,1
FN	45	1 020	1 100	2 400	45	63	120	60		95	16	7,0	3,7
FN	50	1 900	950	2 050	50	80	130	70		110	17	8,5	5,3
FN	55	2 000	900	1 900	55	80	140	75		115	18	9,0	6,0
FN	60	3 000	800	1 800	60	95	150	80		125	18	9,0	8,4

 
Application example
Internal freewheel FN 20 as a backstop, on the drive shaft of running gears on a chain conveyor. In normal operation, the drive shaft drives and the freewheel works in freewheeling operation. The freewheel as a backstop prevents the running gears from being able to run backwards uncontrolled in the event of a fault.