Fdn15 Internal Freewheels with Sprags

• Customization: Available
• Model: Fdn15
• Type: Cfh
• Model NO.: FDN15
• Outer Diameter: 37mm
• Inner Diameter: 8mm
• Weight: 0.1kg
• Precision: P6
• Material: Gcr15
• OEM: Accept
• Port: Shanghai;Ningbo
• 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 FDN
for press fit on the outer ring
with sprags, available in three types
 
Features
Internal Freewheels FDN are sprag freewheels with anti-friction bearing dimensions.
The freewheels FDN are used as:
 Backstops
 Overrunning Clutches
 Indexing Freewheels
The standard type and the type with P-grinding for increased service life and indexing accuracy do not have bearing support. In the case of the standard type, every second sprag has been replaced by a cylindrical roller; this freewheel can accept radial forces.
Nominal torques up to 2 400 Nm. The torque is transmitted on the outer ring by press fit.
Bores up to 80 mm. Many standard bores are Available.
 

Freewheel Size	Type	Nominal t orque MN Nm	Max. speed Inner ring freewheels/ overruns min-1	Outer ring freewheels/ overruns min-1	Type	Nominal t orque MN Nm	Max. speed Inner ring freewheels/ overruns min-1	Outer ring freewheels/ overruns min-1	bearing support dynamic C N	Load rating of static C0 N	Type	Nominal t orque MN Nm	Bore d Standard    mm          mm		max. mm	B mm	D mm	K mm	Weight kg
FDN    15	CFH	16	3 875	3 925	CFR	8	3 875	3 925	7 800	4 200	CFP	7	8		8	20	37	50	0,1
FDN    20	CFH	28	3 375	3 450	CFR	14	3 375	3 450	8 300	4 200	CFP	12	12		12	20	42	55	0,1
FDN    25	CFH	48	2 900	3 050	CFR	24	2 900	3 050	10 700	5 600	CFP	21	15		15	20	47	60	0,1
FDN    30	CFH	75	2 525	2 675	CFR	36	2 525	2 675	12 900	7 000	CFP	32	20*		20*	20	52	65	0,2
FDN    40	CFH	160	1 900	2 150	CFR	71	1 900	2 150	15 000	8 400	CFP	71	25	28*	28*	22	62	80	0,2
FDN    50	CFH	260	1 475	1 775	CFR	120	1 475	1 775	18 400	11 300	CFP	120	30	35	35	22	72	95	0,4
FDN    65	CFH	430	1 200	1 550	CFR	200	1 200	1 550	21 400	14 100	CFP	210	40	50*	50*	25	90	120	0,7
FDN    80	CFH	650	950	1 350	CFR	300	950	1 350	23 800	17 800	CFP	320	50	60	60	25	110	140	1,2
FDN 105	CFH	2 400	800	1 175	CFR	1 100	800	1 175	48 600	45 000	CFP	1 200	60	80	80	35	130	165	3,2

 
 
. Application example
Internal Freewheel FDN 40 CFR in standard type with bearing support as an overrunning clutch on the shaft end of the main drive of a textile machine. The gear wheel is linked to an auxiliary drive. In normal operation (freewheeling oper ation) the inner ring overruns and the gear wheel with the pressed-in outer ring is at a standstill. During set-up, the machine is driven by the
slowly running auxiliary drive via the gear wheel and the freewheel that is working in driving
operation.
 
Mounting
Internal freewheels FDN in standard type and type with P-grinding are without bearing support.
Concentric alignment of inner and outer ring must be provided by the customer. The permissible run out (T.I.R.) must be observed. The torque is transmitted on the outer ring by
press fit. In order to transmit the torques specified in the table, the outer ring must be accommodated in a housing with an external diameter K. The housing is made of steel or grey
cast iron in minimum quality GG-20. When using other housing materials or smaller external
diameters, we urge you to contact us regarding the transmissible torque.
The tolerance of the housing bore D must be ISO P6 and the tolerance of the shaft must be
ISO h6 or j6. The permissible operating temperature of the freewheel is - 40°C to 80°C.
 
Lubrication
An oil lubrication of the specified quality must be provided.
 
Example for ordering
Freewheel size FDN 30, type with P-grinding with 20 mm bore:
FDN 30 CFP, d = 20 mm