Eye Type
- A Gin Wheel Block Eye Type is a type of pulley system used to increase mechanical advantage during lifting and pulling operations.
- It consists of a grooved wheel (sheave) mounted in a frame, with an eyelet for attachment.
| WLL (lb) | Sheave Diameter (in) | Rope Diameter (in) | Approx N.W. (kg/pc) |
|---|---|---|---|
| 1000 | 8 | 7/8 | 4.5 |
| 1000 | 10 | 1 | 5.6 |
| 1000 | 12 | 1 | 7.2 |
| 1000 | 14 | 1 | 10 |
Functions
- Sheave: The grooved wheel redirects the rope or cable, reducing friction and increasing efficiency.
- Frame: The housing for the sheave, providing a sturdy structure.
- Eyelet: For attaching the gin wheel block to a fixed point or another piece of rigging equipment.
- Material: Typically made from high-strength steel.
- Working Load Limit (WLL): The maximum safe load the gin wheel block can handle.
Key Features
Mechanical Advantage:
- Reducing Effort: By redirecting the line of pull, a gin wheel block can significantly reduce the amount of force required to lift or pull a load.
- Increasing Lifting Capacity: With multiple sheave configurations, a gin wheel block can multiply the lifting capacity of a system.
Changing Direction of Pull:
- Flexibility in Operations: The sheave allows for redirecting the line of pull, enabling lifting and pulling in different directions.
- Overcoming Obstacles: This function is particularly useful when obstacles or obstructions prevent direct pulling.
