AV20 AV25 Holdback Backstop Clutch Bearing One Way for Conveyor System
AV20 AV25 Holdback Backstop Clutch Bearing One Way for Conveyor System
Features of holdback backstop clutch
Type AV20 Backstop Clutch is a roller type freewheel. It is self-contained, centered by plain bearings for low rotational speeds , and sealed using shield protected metallic labyrinth seals.Goods widely used on Elevator, Conveyor, Grain Hoist, etc
Unit is delivered grease lubricated, ready to install in a horizontal or vertical position.
Primarily used as a backstop, the torque capacity is high for a minimum space requirement.
The torque arm and the bearings must not be prestressed. The roller design makes the AV type ideal for light indexing applications.
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Dimensions and Capacities of holdback backstop clutch
| Type | Size | TKN1) | Overrunning speed | Weight | Drag torque | ||||||||||
| AV | dH7 | nimax | D | D2 | L 1 | L | B | F | bB11 | N | E | f | TR | ||
| [mm] | [Nm] | [min-1] | [mm] | [mm] | [mm] | [mm] | [mm] | [mm] | [mm] | [mm] | [mm] | [mm] | [kg] | [Ncm] | |
| 20 | 265 | 450 | 83 | 42 | 35 | 12 | 40 | 90 | 15 | 35 | 5 | 0.8 | 1.3 | 18 | |
| 25 | 265 | 450 | 83 | 42 | 35 | 12 | 40 | 90 | 15 | 35 | 5 | 0.8 | 1.3 | 18 | |
| 30 | 1200 | 320 | 118 | 60 | 54 | 15 | 40 | 110 | 15 | 35 | 8 | 1 | 3.5 | 130 | |
| 35 | 1200 | 320 | 118 | 60 | 54 | 15 | 40 | 110 | 15 | 35 | 8 | 1 | 3.4 | 130 | |
| 40 | 1200 | 320 | 118 | 60 | 54 | 15 | 40 | 110 | 15 | 35 | 8 | 1 | 3.3 | 130 | |
| 45 | 2150 | 280 | 155 | 90 | 54 | 20 | 80 | 140 | 18 | 47 | 10 | 1 | 5.5 | 240 | |
| 50 | 2150 | 280 | 155 | 90 | 54 | 20 | 80 | 140 | 18 | 47 | 10 | 1 | 5.4 | 240 | |
| 55 | 2150 | 280 | 155 | 90 | 54 | 20 | 80 | 140 | 18 | 47 | 10 | 1 | 5.3 | 240 | |
| 60 | 2150 | 280 | 155 | 90 | 54 | 20 | 80 | 140 | 18 | 47 | 10 | 1 | 5.2 | 240 | |
| 70 | 2150 | 280 | 155 | 90 | 54 | 20 | 80 | 140 | 18 | 47 | 10 | 1 | 5 | 240 | |
| 80 | 2900 | 200 | 190 | 110 | 64 | 20 | 80 | 155 | 20 | 40 | 10 | 1.5 | 8.7 | 360 | |
| 90* | 7125 | 150 | 260 | 160 | 90 | 25 | 120 | 220 | – | – | – | 3 | 24.5 | 360 | |
| 100* | 7125 | 150 | 260 | 160 | 90 | 25 | 120 | 220 | – | – | – | 3 | 23.5 | 360 | |
| 110* | 7125 | 150 | 260 | 160 | 90 | 25 | 120 | 220 | – | – | – | 3 | 22.5 | 360 | |
| 120* | 11000 | 130 | 300 | 180 | 110 | 30 | 140 | 260 | – | – | – | 3 | 42 | 600 | |
Mounting Example
Pictures of holdback backstop clutch
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