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Complete Freewheels FGR

Complete Freewheels FGR … R A1A2 and FGR … R A2A7 with mounting flange are sealed roller freewheels with ball bearings. They are oil
lubricated.

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Product Detail

Features

Complete Freewheels FGR … R A1A2 and

FGR … R A2A7 with mounting flange are sealed

roller freewheels with ball bearings. They are oil

lubricated.

The freewheels FGR … R A1A2 and FGR … R

A2A7 are used as:

➧ Backstops

➧ Overrunning Clutches

➧ Indexing Freewheels

Nominal torques up to 68 000 Nm.

Bores up to 150 mm.

Application example

Complete Freewheel FGR 50 R A1A2, used in a

hydraulically released, spring actuated multi-

disk brake for winch drives. When the load is lif-

ted, the multiple-disk brake is closed and the

inner ring is freewheeling. At a standstill, the

freewheel functions as a backstop. The load is

held by the brake and the locked freewheel.

When lowering, the brake is released with

control and the load is lowered via the locked

freewheel. By using the freewheel, the hydraulic

control could be designed in an simpler and

more cost-effective manner.

Sizes of Complete Freewheels FGR

Different types of Complete Freewheels FGR

Freewheel Size		Type	Flange and cover combination		Nominal t orque M_N Nm	M Inner ring freewheels/ overruns min^-1	ax. speed Outer ring freewheels/ overruns min^-1	Bore d mm	A mm	D mm	F mm	G**	K mm	L mm	L1 mm	N mm	N1 mm	R mm	T mm	Z**	Weight kg
FGR	12	R	A1A2	A2A7	55	2 500	5 400	12	85	62	1	M 5	3,0	42	44	10,0	10,0	42	72	3	1,2
FGR	15	R	A1A2	A2A7	130	2 200	4 800	15	92	68	1	M 5	3,0	52	54	11,0	11,0	47	78	3	1,6
FGR	20	R	A1A2	A2A7	180	1 900	4 100	20	98	75	1	M 5	3,0	57	59	10,5	10,5	55	85	4	1,9
FGR	25	R	A1A2	A2A7	290	1 550	3 350	25	118	90	1	M 6	3,0	60	62	11,5	11,5	68	104	4	2,9
FGR	30	R	A1A2	A2A7	500	1 400	3 050	30	128	100	1	M 6	3,0	68	70	11,5	11,5	75	114	6	3,9
FGR	35	R	A1A2	A2A7	730	1 300	2 850	35	140	110	1	M 6	3,5	74	76	13,5	13,0	80	124	6	4,9
FGR	40	R	A1A2	A2A7	1 000	1 150	2 500	40	160	125	1	M 8	3,5	86	88	15,5	15,0	90	142	6	7,5
FGR	45	R	A1A2	A2A7	1 150	1 100	2 400	45	165	130	1	M 8	3,5	86	88	15,5	15,0	95	146	8	7,8
FGR	50	R	A1A2	A2A7	2 100	950	2 050	50	185	150	1	M 8	4,0	94	96	14,0	13,0	110	166	8	10,8
FGR	55	R	A1A2	A2A7	2 600	900	1 900	55	204	160	1	M 10	4,0	104	106	18,0	17,0	115	182	8	14,0
FGR	60	R	A1A2	A2A7	3 500	800	1 800	60	214	170	1	M 10	4,0	114	116	17,0	16,0	125	192	10	16,8
FGR	70	R	A1A2	A2A7	6 000	700	1 600	70	234	190	1	M 10	4,0	134	136	18,5	17,5	140	212	10	20,8
FGR	80	R	A1A2	A2A7	6 800	600	1 400	80	254	210	1	M 10	4,0	144	146	21,0	20,0	160	232	10	27,0
FGR	90	R	A1A2	A2A7	11 000	500	1 300	90	278	230	1	M 12	4,5	158	160	20,5	19,0	180	254	10	40,0
FGR 100		R	A1A2	A2A7	20 000	350	1 100	100	335	270	1	M 16	5,0	182	184	30,0	28,0	210	305	10	67,0
FGR 130		R	A1A2	A2A7	31 000	250	900	130	380	310	1	M 16	5,0	212	214	29,0	27,0	240	345	12	94,0
FGR 150		R	A1A2	A2A7	68 000	200	700	150	485	400	1	M 20	5,0	246	248	32,0	30,0	310	445	12	187,0

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

Keyway according to DIN 6885, page 1 • Tolerance of keyway width JS10.

** Z = Number of fastening holes for screws G (DIN EN ISO 4762) on pitch circle T.

Mounting
Basic Freewheel, flange, cover, seals and screws
are supplied loose. These must be assembled by
the customer with regard to the required
freewheeling direction into the Complete
Freewheel. Prior to commissioning, the
freewheel must be filled with oil of the specified
quality. Upon request, assembled Complete
Freewheels already oil-filled can be supplied.
With Complete Freewheels FGR … R A1A2, the
customer attachment part is centered on the
external diameter D and bolted on to the face
via flange A1.
With Complete Freewheels FGR … R A2A7, the
customer attachment part is centered on the
pilot diameter R and bolted on to the face via
flange A7. Hence, Complete Freewheels FGR …
SF A2A7 are particularly suitable for attaching
smaller and narrower parts (sprockets, gear
wheels etc.).
The tolerance of the shaft must be ISO h6 or j6
and the tolerance of the pilot diameter D or R
of the attachment part must be ISO H7 or J7.

Example for ordering
Freewheel size FGR 25, standard type with
flange A1 and cover A2:
• FGR 25 R A1A2
Basic Freewheel, flange, cover, seals and screws
are supplied loose provided nothing else is
stated in the order.
If assembled, oil-filled, Complete Freewheels are
to be supplied, this must be specified in the
order. When ordering, please also specify the
free wheeling direction of the inner ring when
view ed in direction X:
• counterclockwisefree or
• clockwise free