Friction Rings and Guide Pulleys:
Truco’s range of friction rings is constructed from durable elastomer (elastic polymer) materials that offer optimal properties for high-performance rolling-contact drives with high transmission capacities.
Truco’s range of guide pulleys are made of solid rubber with damping elements making them are ideal for guiding hoisting cages and buckets, particularly in mining applications. The result is a high-performance guide pulley with a simple construction that achieves low-noise levels and is also maintenance-free.
Friction Ring and Guide Pulley Construction:
Both the friction ring and guide pulley are constructed from a natural, abrasion-resistant rubber compound ranging from 67 – 83 Shore A Hardness classification. Friction rings are well-suited for applications ranging from -30°C to 90°C. Guide pulleys are suitable for production with high speeds of up to 72 km per hour.
The base layer consists of a special hard elastomer material that is firmly bonded to the contact face by means of vulcanisation. The base layer is manufactured for both cylindrical and tapered hub finishes.
The strength member keeps the guide pulley under constant tension and ensures a firm fit on the hub.
The strength member consists of steel reinforcing wires that keep the friction ring under constant tension and ensure a firm fit on the hub.