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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
