Complete Freewheels FGRN … R A5A6

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Complete Freewheels FGRN … R A5A6

Product information

INTRODUCTION

Features

Complete Freewheels FGRN… R A5A6 are

sealed roller freewheels with ball bearings. They

are oil lubricated.

The freewheels FGRN… R A5A6 are used as:

➧ Backstops

➧ Overrunning Clutches

➧ Indexing Freewheels

Nominal torques up to 6 800 Nm.

Bores up to 80 mm.

Application example

Complete Freewheel FGRN 45 R as an overrunning clutch on the shaft end of a mobile fan. In normal operation, the fan is driven by a diesel motor via the V-belt drive. By doing so, the freewheel works in driving operation. When the motor is turned off, the freewheel automatically disengages the rotating flywheel mass of the fan from the drive. In this operating state, the inner ring overruns the stationary outer ring; the freewheel works in freewheeling operation.

Freewheel Size	Type	Cover combination	Nominal Torque 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	L mm	M mm	N mm	P mm	O mm	Weight kg
FGRN 12	R	A5A6	55	2 500	5 400	12	70	62	1	42	10,0	4	2,5	20	1,2
FGRN 15	R	A5A6	130	2 200	4 800	15	76	68	1	52	11,0	5	3,0	28	1,6
FGRN 20	R	A5A6	180	1 900	4 100	20	84	75	1	57	10,5	6	3,5	34	1,9
FGRN 25	R	A5A6	290	1 550	3 350	25	99	90	1	60	11,5	8	4,0	35	2,9
FGRN 30	R	A5A6	500	1 400	3 050	30	109	100	1	68	11,5	8	4,0	43	3,9
FGRN 35	R	A5A6	730	1 300	2 850	35	119	110	1	74	13,5	10	5,0	45	4,9
FGRN 40	R	A5A6	1 000	1 150	2 500	40	135	125	1	86	15,5	12	5,0	53	7,5
FGRN 45	R	A5A6	1 150	1 100	2 400	45	140	130	1	86	15,5	14	5,5	53	7,8
FGRN 50	R	A5A6	2 100	950	2 050	50	160	150	1	94	14,0	14	5,5	64	10,8
FGRN 55	R	A5A6	2 600	900	1 900	55	170	160	1	104	18,0	16	6,0	66	14,0
FGRN 60	R	A5A6	3 500	800	1 800	60	182	170	1	114	17,0	18	7,0	78	16,8
FGRN 70	R	A5A6	6 000	700	1 600	70	202	190	1	134	18,5	20	7,5	95	20,8
FGRN 80	R	A5A6	6 800	600	1 400	80	222	210	1	144	21,0	22	9,0	100	27,0

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.

Mounting
Basic Freewheel, covers, seals and screws are
supplied loose. These must be assembled by the
customer with regard to the required free-
wheeling direction into the Complete Free -
wheel. 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.
The customer attachment part is connected via
a keyway connection with the outer ring. The
customer must provide the key required for as-
sembling the attachment part.
The tolerance of the shaft must be ISO h6 or j6
and the tolerance of the pilot diameter D of the
attachment part must be ISO H7 or J7.

Example for ordering
Freewheel size FGRN 60, standard type with
flange A5 and cover A6:
• FGRN 60 R A5A6
Basic Freewheel, covers, 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
freewheeling direction of the inner ring when
viewed in direction X:
• counterclockwise free or
• clockwise free