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| Place of Origin | CHINA |
| Brand Name | SUMA |
| Certification | ISO SGS |
| Model Number | FBO72 |
Feature of FBO Freewheel Backstop Clutch
for assembly with connecting parts
with sprags, available in five types
Features
Basic Freewheels FBO are sprag freewheels with ball bearings to be assembled with customer connecting parts. The freewheels are particularly suitable for installation in housings with oil lubrication and seals. The freewheels FBO are used as:
Backstops
Overrrunning Clutches
Indexing Freewheels
In addition to the standard type, four other types are available for extended service life and
indexing accuracy. Nominal torques up to 160 000 Nm. Bores up to 300 mm. Many standard bores are available.
indexing accuracy. Nominal torques up to 25 000 Nm. Bores up to 155 mm. Many standard bores are available.
Dimension and Capacity of FBO Freewheel Backstop Clutch
| Freewheel Size | Type |
Torque MN Nm |
Max. speed Inner ring overruns min-1 |
Outer ring / overruns min-1 |
Type |
Torque MN Nm |
Max. speed Inner ring / overruns min-1 |
Outer ring overruns min-1 |
Type |
Torque MN Nm |
Sprag lift-off at inner ring speed min-1 |
Max. speed Inner ring / overruns min-1 |
Outer ring drives min-1 | Type |
Torque MN Nm |
Sprag lift-off at outer ring speed min-1 |
Max. speed Outer ring overruns min-1 |
Inner ring drives min-1 | Type |
Torque MN Nm |
| FBO37 | SF | 200 | 2 500 | 2 600 | SFT | 200 | 2 500 | 2 600 | CZ | 110 | 850 | 3 000 | 340 | SFP | 120 | |||||
| FBO44 | SF | 320 | 1 900 | 2 200 | SFT | 320 | 1 900 | 2 200 | DX | 130 | 860 | 1 900 | 344 | CZ | 180 | 800 | 2 600 | 320 | SFP | 180 |
| FBO57 | SF | 630 | 1 400 | 1 750 | SFT | 630 | 1 400 | 1 750 | DX | 460 | 750 | 1 400 | 300 | LZ | 430 | 1 400 | 2 100 | 560 | SFP | 310 |
| FBO72 | SF | 1 250 | 1 120 | 1 600 | SFT | 1 250 | 1 120 | 1 600 | DX | 720 | 700 | 1 150 | 280 | LZ | 760 | 1 220 | 1 800 | 488 | SFP | 630 |
| FBO82 | SF | 1 800 | 1 025 | 1 450 | SFT | 1 800 | 1 025 | 1 450 | DX | 1 000 | 670 | 1 050 | 268 | SFZ | 1 700 | 1 450 | 1 600 | 580 | SFP | 750 |
| FBO 107 | SF | 2 500 | 880 | 1 250 | SFT | 2 500 | 880 | 1 250 | DX | 1 500 | 610 | 900 | 244 | SFZ | 2 500 | 1 300 | 1 350 | 520 | SFP | 1 250 |
| FBO 127 | SF | 5 000 | 800 | 1 150 | SFT | 5 000 | 800 | 1 150 | SX | 3 400 | 380 | 800 | 152 | SFZ | 5 000 | 1 200 | 1 200 | 480 | SFP | 3 100 |
| FBO 140 | SF | 10 000 | 750 | 1 100 | SFT | 10 000 | 750 | 1 100 | SX | 7 500 | 320 | 750 | 128 | SFZ | 10 000 | 950 | 1 150 | 380 | SFP | 6 300 |
| FBO 200 | SF | 20 000 | 630 | 900 | SFT | 20 000 | 630 | 900 | SX | 23 000 | 240 | 630 | 96 | SFZ | 20 000 | 680 | 900 | 272 | SFP | 12 500 |
| FBO 270 | SF | 40 000 | 510 | 750 | SFT | 40 000 | 510 | 750 | SX | 40 000 | 210 | 510 | 84 | SFZ | 37 500 | 600 | 750 | 240 | SFP | 25 000 |
| FBO 340 | SF | 80 000 | 460 | 630 | SFT | 80 000 | 460 | 630 | ||||||||||||
| FBO 440 | SF | 160000 | 400 | 550 | SFT | 160000 | 400 | 550 |
| Freewheel Size | mm | mm |
Bore d Standard mm mm |
mm | max. mm |
B mm |
C1*** mm |
C2*** mm |
C3*** mm |
D mm |
E mm |
F mm |
G** |
L mm |
T mm |
Z** | Weight kg | |
| FBO 37 | 14 | 16 | 18 | 20 | 22* | 22* | 25 | 3,7 | 4,3 | 85 | 30 | 55 | M 6 | 48 | 70 | 6 | 0,9 | |
| FBO 44 | 20 | 22 | 25* | 25* | 25 | 3,7 | 4,7 | 4,4 | 95 | 35 | 62 | M 6 | 50 | 80 | 8 | 1,3 | ||
| FBO 57 | 25 | 28 | 30 | 32* | 32* | 30 | 4,2 | 7,7 | 7,4 | 110 | 45 | 75 | M 8 | 65 | 95 | 8 | 1,9 | |
| FBO 72 | 35 | 38 | 40 | 42* | 42* | 38 | 3,7 | 4,9 | 4,4 | 132 | 55 | 90 | M 8 | 74 | 115 | 12 | 3,5 | |
| FBO 82 | 35 | 40 | 45 | 50* | 50* | 40 | 6,6 | 6,6 | 6,6 | 145 | 65 | 100 | M 10 | 75 | 125 | 12 | 4,0 | |
| FBO 107 | 50 | 55 | 60 | 65* | 65* | 45 | 8,1 | 8,1 | 8,1 | 170 | 80 | 125 | M 10 | 90 | 150 | 12 | 7,7 | |
| FBO 127 | 50 | 60 | 70 | 75* | 75* | 68 | 6,9 | 7,9 | 6,9 | 200 | 95 | 145 | M 12 | 112 | 180 | 12 | 13,3 | |
| FBO 140 | 65 | 75 | 80 | 90 | 95* | 68 | 19,1 | 20,1 | 19,1 | 250 | 120 | 180 | M 16 | 150 | 225 | 12 | 31,5 | |
| FBO 200 | 110 | 120 | 120 | 85 | 14,1 | 15,1 | 14,1 | 320 | 160 | 240 | M 16 | 160 | 288 | 16 | 46,5 | |||
| FBO 270 | 140 | 150 | 100 | 22,5 | 22,5 | 22,5 | 420 | 200 | 310 | M 20 | 212 | 370 | 18 | 105,0 | ||||
| FBO 340 | 180 | 240 | 125 | 25,6 | 497 | 300 | 380 | M 20 | 265 | 450 | 24 | 190,0 | ||||||
| FBO 440 | 220 | 300 | 150 | 34,1 | 627 | 380 | 480 | M 30 | 315 | 560 | 24 | 360,0 | ||||||
Application example
Basic Freewheel FBO 127 SF as an overrunning clutch between the creep drive and the main drive of a cement mixer. In the case of creep operation, the outer ring is driven by the shaft coupling. The freewheel works in driving oper - ation and drives the unit at a low speed via the main gearbox. In normal operation (freewheel - ing operation), the inner ring overruns and the
creep drive is automatically disengaged. The freewheel is connected to the oil lubrication of the main gearbox and does not require any special maintenance. The arrangement of the seals between the freewheel and the main gear box is advantageous. In normal operation(freewheeling operation), this is at a standstill and hence generates no additional frictionrelated temperature rise.
Mounting
The customer connecting parts are centered on the ball bearing external diameter F and assembled via the outer ring. The tolerance of the shaft must be ISO h6 or j6 and the tolerance of the pilot diameter F of the connecting part must be ISO H7 or J7. The centering depth C must be observed.
Lubrication
An oil lubrication of the specified quality must be provided.
Example for ordering
Freewheel size FBO 72, type with P-grinding
and 38 mm bore:
• FBO 72 SFP, d = 38 mm
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