SPZ 2120-2 LP KB

Optibelt Kraftband belts consist of multiple individual wrapped V-belts joined by a cover plate—typically incorporating up to five belts per assembly, with variants exceeding this count available for specialized needs. This arrangement delivers enhanced resistance to impact loads, enables the use of compact pulley diameters across extensive center distances, and performs reliably even with vertical shaft configurations

Characteristics

• Constructed by linking 2 to 5 (and in special situations, even more) wrapped V‑belts using a rigid cover plate. This creates a unified and durable power band.
• Designed to endure extreme impact loads, especially effective in setups with large center distances, small pulley diameters, and vertical shaft orientations.
• Offers greater flexibility compared to traditional wedge belts, resulting in better vibration characteristics. Suited for drives with clutches and variable load dynamics.
• Built to maintain reliability across temperatures from approximately –40 °C to +70 °C.
• Certain models support electrical conductivity (antistatic functionality), meeting specific safety requirements.
• Tailored for industrial environments with sudden load changes and mechanical shocks. Functions well under vertical shafts and in long-span drives.
• Effective in systems constrained by space, small pulley sizes, or requiring clutch interactions and dynamic load accommodation.
• Employed extensively in agricultural machinery and mechanical engineering where robustness, reliability, and endurance are critical.

Standards

• DIN 2211 / ISO 4183
• ISO 5290
• ISO 5291
• ASAE S211