Product Details

FXM56-25 One way Overrunning Clutch Backstop Bearing for Gearbox

Product Description

Data Sheet

Item	FXM
Material	GCr15
Outer Diameter	110 mm
Inner Diameter	35 mm
Width	35 mm
Weight	1,8 kg
Port	Shanghai;Ningbo
Delivery Time	15-20 days

Feature

Integrated Freewheels FXM are sprag free -wheels without bearing support and with sprag

lift-off X.

The sprag lift-off X ensures a wear-free freewheeling operation when the inner ring rotates at high speed.

The freewheels FXM are used as:

1. Backstops

2. Overrunning Clutches

for applications with high speed freewheeling operation and when used as an overrunning clutch with low

speed driving operation.

Nominal torques up to 888 000 N.m.

Bores up to 460 mm. Many standard bores are available.

Sprag lift-off X

Integrated Freewheels FXM are equipped with sprag lift-off X. The sprag lift-off X is used for backstops and overrunning clutches, provided that in freewheeling operation the inner ring is rotating at high speed and

providing with overrunning clutches that the driving operation is conducted at low speed. In freewheeling

operation, the centrifugal force F C causes the sprag to lift off from the outer track. In this operating state, the

freewheel works wear-free, i.e. with unlimited service life.

Figure 64-2 shows a freewheel with sprag lift-off X in freewheeling operation . The sprags, which are supported in a cage connected with the inner ring, rotate with the inner ring. The centrifugal force F C that is

applied in the center of gravity S of the sprag turns the sprag counterclockwise and rests against the support

ring of the cage. This results in the gap a between the sprag and the outer track; the freewheel works with out

contact. If the inner ring speed decreases to such an extent that the effect of the centrifugal force on the sprag

is less than that of the spring force F F , the sprag again rests on the outer ring and the freewheel is ready to

lock (figure 64-3). If used as an overrunning clutch, the driving speed must not exceed 40% of the lift-off speed.

Freewheel		mm	mm	Stan	Bored dard mm	mm	mm	max.	A	B	D	E	F	G**	J	L	P	T	U	V	W	Z**	Wei ght
Size				mm				mm	mm	mm	mm	min.	mm		mm	mm	mm	mm	mm	mm	mm		kg
												mm
FXM	31 -17	20*						20*	17	25	85	41	55	M 6	31	24	1,0	70	15	6	21	6	0,8
FXM	38 -17	25*						25*	17	25	90	48	62	M 6	38	24	1,0	75	15	6	21	6	0,9
FXM	46 -25	25						30	25	35	95	56	70	M 6	46	35	1,0	82	15	6	21	6	1,3
FXM	51 -25	25	30	35				36	25	35	105	62	75	M 6	51	35	1,0	90	15	6	21	6	1,7
FXM	56 -25	35						40	25	35	110	66	80	M 6	56	35	1,0	96	15	6	21	8	1,8
FXM	61 -19	30	35	40				45*	19	27	120	74	85	M 8	61	25	1,0	105	15	6	21	6	1,8
FXM	66 -25	35	40	45				48*	25	35	132	82	90	M 8	66	35	1,0	115	15	8	23	8	2,8
FXM	76 -25	45	55					60*	25	35	140	92	100	M 8	76	35	1,0	125	15	8	23	8	3,1
FXM	86 -25	40	45	50	60	65		70*	25	40	150	102	110	M 8	86	40	1,0	132	15	8	23	8	4,2
FXM	101 -25	55	70					80*	25	50	175	117	125	M 10	101	50	1,0	155	20	8	28	8	6,9
FXM	85 -40	45	50	60	65			65	40	50	175	102	125	M 10	85	60	1,0	155	20	8	28	8	7,4
FXM	100 -40	45	50	55	60	70	75	80*	40	50	190	130	140	M 10	100	60	1,5	165	25	10	35	12	8,8
FXM	120 -50	60	65	70	75	80	95	95	50	60	210	150	160	M 10	120	70	1,5	185	25	10	35	12	12,7
FXM	140 -50	65	90	100	110			110	50	70	245	170	180	M 12	140	70	2,0	218	25	12	35	12	19,8
FXM	170 -63	70	85	90	100	120		130	63	80	290	200	210	M 16	170	80	2,0	258	28	12	38	12	33,0
FXM	200 -63	130						155	63	80	310	230	240	M 16	200	80	2,0	278	32	12	42	12	32,0

Certifications