Complete Freewheels FBL|Suma

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Complete Freewheels FBL

Complete Freewheels FBL with shaft coupling are sealed sprag freewheels with ball bearings for coupling two shafts.

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Product Detail

Features

Complete Freewheels FBL with shaft coupling are sealed sprag freewheels with ball bearings for coupling two shafts. They are supplied oil-filled and ready for installation The freewheels FBL are used as:

➧Overrunning Clutches

In addition to the standard type, two other types are available for extended service life.

Nominal torques up to 8 000 Nm.

Bores up to 140 mm. Many standard bores are available.

The torsionally stiff shaft coupling can accept large radial and angular misalignments, without reactive forces affecting neighbouring bearings. We can provide you with performance data upon request.

Application example

Complete Freewheel FBL 82 SFZ as an overrunning clutch in the drive unit of a conveyor belt system with additional creep drive. The free wheel with shaft coupling is arranged in between the main motor and the creep drive. When the creep drive operates, the freewheel is in driving operation and drives the belt at low speed. In normal operation (freewheeling operation), the main motor drives and the outer ring overruns, whereupon the creep drive is automatically disengaged. With the high speed here, the type sprag lift-off Z is used; the sprags work in freewheeling operation without contact and hence are wear-free.

Freewheel Size	Type	Nominal Torque M_N Nm	Max. Inner ring overruns min^-1	speed Outer ring overruns min^-1	Type	Nominal Torque M_N Nm	Max. Inner ring overruns min^-1	speed Outer ring overruns min^-1	Type	Nominal Torque M_N Nm	Sprag lift-off at outer ring speed min^-1	Max. speed Outer ring overruns min^-1	Inner ring drives min^-1
FBL37	SF	85	2 500	2 600	SFT	85	2 500	2 600	CZ	85	850	3 000	340
FBL44	SF	190	1 900	2 200	SFT	190	1 900	2 200	CZ	180	800	2 600	320
FBL57	SF	500	1 400	1 750	SFT	500	1 400	1 750	LZ	430	1 400	2 100	560
FBL72	SF	500	1 120	1 600	SFT	500	1 120	1 600	LZ	500	1 220	1 800	488
FBL82	SF	1 000	1 025	1 450	SFT	1 000	1 025	1 450	SFZ	1 000	1 450	1 600	580
FBL107	SF	2 000	880	1 250	SFT	2 000	880	1 250	SFZ	2 000	1 300	1 350	520
FBL127	SF	4 000	800	1 150	SFT	4 000	800	1 150	SFZ	4 000	1 200	1 200	480
FBL140	SF	8 000	750	1 050	SFT	8 000	750	1 050	SFZ	8 000	950	1 050	380

The maximum transmissible torque is 2 times the specified nominal torque. See page 14 for determination of selection torque.

Freewheel Size	mm	mm	Bore d1 Standard mm mm		mm	max. mm	Bore d3 min. mm	max. mm	A mm	B mm	C mm	D mm	E mm	F mm	H mm	L mm	M mm	O mm	Weight kg
FBL37	14	16	18	20	22*	22*	16	35	110	62,0	12	75	53	0,5	33	48	42	124	3,0
FBL44	20	22	25*			25*	20	42	135	65,0	14	90	66	0,5	41	50	53	140	4,6
FBL57	25	28	30	32*		32*	30	50	160	82,5	16	100	85	0,5	51	65	62	170	6,9
FBL72	35	38	40	42*		42*	30	50	160	89,5	16	125	85	1,0	51	74	62	178	10,0
FBL82	35	40	45	50*		50*	40	70	200	92,0	20	135	104	2,0	65	75	79	204	14,2
FBL107	50	55	60	65*		65*	50	90	250	111,5	25	170	150	2,5	81	90	100	250	28,0
FBL127	50	60	70	75*		75*	60	110	315	138,0	32	200	175	3,0	101	112	124	313	48,8
FBL140	65	75	80	90		95*	75	140	400	183,5	40	250	216	5,0	130	150	160	410	102,2

Sizes of Complete Freewheels FBL

Different types of Complete Freewheels FBL

For bore d1: Keyway according to DIN 6885, page 1 • Keyway width tolerance JS10. * Keyway according to DIN 6885, page 3 • Keyway width tolerance JS10.

For bore d3: Keyway according to DIN 6885, page 1 • Keyway width tolerance P9

Mounting
The flexible disk of the shaft coupling must be
axially free when fitted so that the ball bearings
in the freewheel are not distorted due to heat
expansion.
The shaft coupling including the fastening
screws are supplied loose. Depending on the
desired freewheeling direction, the shaft coup-
ling can be fitted on the right or the left of the
freewheel.
The tolerance of the shaft must be ISO h6 or j6.

Example for ordering
Freewheel size FBL 72, type with sprag lift-off Z
and 38 mm bore in the freewheel and 40 mm
bore in the shaft coupling:
• FBL 72 LZ, d1 = 38 mm, d3 = 40 mm