Description
About the OPTIBELT TB SPZ 190/5 Pulley
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Design & Material
The TB‑SPZ range from OPTIBELT is made of high-quality cast iron (EN-GJL 200), designed for durability and precision power transmission -
Dimensional Specs for 190 mm Diameter, 5 Grooves
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• 190 mm pitch diameter
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• 5 grooves (for SPZ 10 belts, ~8–11 mm wide)
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• Weight around 6.3 kg
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• Works with TB taper bush 2517 (fits bore 16–65 mm)
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Performance & Use
Features Taper‑Lock system for quick, secure mounting to shafts. Benefits include easy belt tension adjustments, vibration damping, and suitability for industrial, agricultural, and automotive drives




