Integrated Freewheels FXM
for bolting to the face
with sprag lift-off X
Features
Integrated Freewheels FXM are sprag freewheels without bearing support and with sprag
lift-off X from Suma bearing vendor. 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:
Backstops
Overrunning Clutches
for applications with high speed freewheel ing operation and when used as an overrunning
clutch with low speed driving operation. Nominal torques up to 888 000 Nm. 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 FC 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 liftoff X in freewheeling operation. The sprags which are supported in a cage connected with the inner ring, rotate with the inner ring. Thecentrifugal force FC 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 FF , the sprag again rests on the outer ring and the freewheel is ready to lock. If used as an overrunning clutch, the driving speed must not exceed 40% of the lift-off speed.
TORQUE CAPACITY
| Torque | Max Speed r/min | Bore d | |||||||
Nm | Inner race | Outer race | mm | mm | mm | mm | mm | mm | mm | |
FXM 31 -17 | 110 | 5 000 | 356 | 20* | 20* | |||||
FXM 38 -17 | 180 | 5 000 | 344 | 25* | 25* | |||||
FXM 46 -25 | 460 | 5 000 | 328 | 25 | 30 | |||||
FXM 51 -25 | 560 | 5 000 | 300 | 25 | 30 | 35 | 36 | |||
FXM 56 -25 | 660 | 5 000 | 292 | 35 | 40 | |||||
FXM 61 -19 | 520 | 5 000 | 300 | 30 | 35 | 40 | 45* | |||
FXM 66 -25 | 950 | 5 000 | 280 | 35 | 40 | 45 | 48* | |||
FXM 76 -25 | 1200 | 5 000 | 268 | 45 | 55 | 60* | ||||
FXM 86 -25 | 1600 | 5 000 | 252 | 40 | 45 | 50 | 60 | 65 | 70* | |
FXM 101 -25 | 2100 | 5 000 | 244 | 55 | 70 | 80* | ||||
FXM 85 -40 | 2500 | 6 000 | 172 | 45 | 50 | 60 | 65 | 65 | ||
FXM 100 -40 | 3700 | 4 500 | 160 | 45 | 50 | 55 | 60 | 70 | 75 | 80* |
FXM 120 -50 | 7700 | 4 000 | 128 | 60 | 65 | 70 | 75 | 80 | 95 | 95 |
FXM 140 -50 | 10100 | 3 000 | 128 | 65 | 90 | 100 | 110 | 110 | ||
FXM 170 -63 | 20500 | 2 700 | 100 | 70 | 85 | 90 | 100 | 120 | 130 | |
FXM 200 -63 | 31000 | 2 100 | 96 | 130 | 155 |
DIMENSIONS
| A | B | D | E | F | G | J | L | P | T | U | Weight |
mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | kg | ||
FXM 31 -17 | 17 | 25 | 85 | 41 | 55 | M6 | 31 | 24 | 1,0 | 70 | 15 | 0,8 |
FXM 38 -17 | 17 | 25 | 90 | 48 | 62 | M6 | 38 | 24 | 1,0 | 75 | 15 | 0,9 |
FXM 46 -25 | 25 | 35 | 95 | 56 | 70 | M6 | 46 | 35 | 1,0 | 82 | 15 | 1,3 |
FXM 51 -25 | 25 | 35 | 105 | 62 | 75 | M6 | 51 | 35 | 1,0 | 90 | 15 | 1,7 |
FXM 56 -25 | 25 | 35 | 110 | 66 | 80 | M6 | 56 | 35 | 1,0 | 96 | 15 | 1,8 |
FXM 61 -19 | 19 | 27 | 120 | 74 | 85 | M8 | 61 | 25 | 1,0 | 105 | 15 | 1,8 |
FXM 66 -25 | 25 | 35 | 132 | 82 | 90 | M8 | 66 | 35 | 1,0 | 115 | 15 | 2,8 |
FXM 76 -25 | 25 | 35 | 140 | 92 | 100 | M8 | 76 | 35 | 1,0 | 125 | 15 | 3,1 |
FXM 86 -25 | 25 | 40 | 150 | 102 | 110 | M8 | 86 | 40 | 1,0 | 132 | 15 | 4,2 |
FXM 101 -25 | 25 | 50 | 175 | 117 | 125 | M10 | 101 | 50 | 1,0 | 155 | 20 | 6,9 |
FXM 85 -40 | 40 | 50 | 175 | 102 | 125 | M10 | 85 | 60 | 1,0 | 155 | 20 | 7,4 |
FXM 100 -40 | 40 | 50 | 190 | 130 | 140 | M10 | 100 | 60 | 1,5 | 165 | 25 | 8,8 |
FXM 120 -50 | 50 | 60 | 210 | 150 | 160 | M10 | 120 | 70 | 1,5 | 185 | 25 | 12,7 |
FXM 140 -50 | 50 | 70 | 245 | 170 | 180 | M12 | 140 | 70 | 2,0 | 218 | 25 | 19,8 |
FXM 170 -63 | 63 | 80 | 290 | 200 | 210 | M16 | 170 | 80 | 2,0 | 258 | 28 | 33,0 |
FXM 200 -63 | 63 | 80 | 310 | 230 | 240 | M16 | 200 | 80 | 2,0 | 278 | 32 | 32,0 |
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