
Pulley
Pulley of various kinds and in different types of materials.
Visit our webshop, ropestore.com:
Buy at ropestore.com(opens in a new tab)Contact us with an inquiry
Contact usIndustry & Infrastructure, Construction, Exercise, Other products
Description
Steel pulley
Galvanized steel pulleys are designed to enable smooth and reliable hoisting systems for various applications in boating, industry, construction and the theater industry.
Material and properties: These pulleys are made of high-quality galvanized steel with durable polyamide discs to ensure optimal performance and durability. Available with 1 or 2 discs.
Applications: Pulleys are used for hoisting, pulling, lifting and changing the direction of applied force in ropes or wires. Some examples include:
- Mechanical advantage: Pulleys can be used to reduce the effort needed to lift or pull an object using a system known as a “block and tackle”. Using multiple pulleys reduces the force required but increases the length of rope needed due to mechanical advantage principles.
- Force direction: Pulleys allow for redirection of the pulling force without significant loss of force. For instance, one might lift a stone by attaching a pulley to a tree branch and pulling downward on the rope. The force changes direction over the pulley with minimal loss due to low friction compared to a fixed loop or ring.
Advantages: Steel pulleys with polyamide discs provide strength and mechanical advantage where needed using ropes or wires, minimizing power losses in mechanical movements of pulling and lifting.
Specification
| For rope diameter [mm] | Disc diameter [mm] | Total length [mm] | Loop [mm] | MBL [kg] |
|---|---|---|---|---|
| 5 | 15 | 50 | 10 | 300 |
| 6 | 20 | 60 | 11 | 400 |
| 7 | 25 | 70 | 12 | 600 |
| 8 | 30 | 80 | 13 | 800 |
| 10 | 40 | 93 | 14 | 1000 |
| 12 | 50 | 113 | 16 | 1200 |
| 14 | 65 | 135 | 20 | 1500 |
MBL: minimum breaking load. Stated breaking loads apply to new rope.
Wooden block
Wooden pulleys are designed to facilitate smooth and reliable hoisting mechanisms for various applications where aesthetics are also a crucial component.
Materials and features: These pulleys are made from untreated ash with durable black polyamide sheaves to ensure optimal performance and durability even under demanding conditions. Available with 1 or 2 sheaves. The wooden pulleys feature brass fittings and galvanized forged details, providing a rustic and authentic appearance.
Applications: Pulleys are used for hoisting, pulling, lifting and changing the direction of applied force in rope or wire. Examples include:
- Wooden boats: Wooden pulleys have been utilized for thousands of years to leverage the laws of physics. On boats and sailing vessels, they have been and still are an essential component for handling the forces required to tension both standing and running rigging. Wooden pulleys are perfectly suited for both new and old wooden boats where an exclusive and authentic appearance is desired.
- Decoration: The attractive appearance and functionality of wooden pulleys make them suitable for use in interior design, commercial decor, and various personal projects.
Advantages: Wooden pulleys offer the same functionality as steel pulleys but with a more attractive and appealing appearance.
Specification
| For rope diameter [mm] | Disc diameter [mm] | Total length [mm] |
|---|---|---|
| 8-10 | 45 | 75 |
| 12-14 | 57 | 100 |
| 16 | 70 | 125 |
| 18 | 82 | 150 |
| 20 | 98 | 175 |
| 22 | 118 | 200 |
| 24-25 | 138 | 225 |
| 26-27 | 157 | 250 |
