Description
OPTIBELT TB SPZ 250/5 PULLEY OPTIBELT | V-grooved Pulley
🔧 Key Specifications
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Brand & Model: OPTIBELT TB SPZ 250/5 (for taper‑lock bush 2517)
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Belt Section: SPZ (narrow profile, approximately 9 mm top width)
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Number of Grooves: 5
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Pitch Diameter: ≈ 250 mm
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Outside Diameter: ~257 mm
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Bore Type: Taper‑Lock bushing, series 2517 (bore range varies accordingly)
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Material: Cast iron, precision machined
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Weight: ~6.4 kg (approx., without bushing)
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Balance Grade: G6.3 per ISO 1940, suitable for up to 1500 rpm (bis 400 mm)
⚙️ Features
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Precise 5-groove SPZ profile for compact, high-density belt drives
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Taper‑Lock mounting enables quick, tool‑free installation and removal
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High cast‑iron rigidity ensures long service life and vibration resistance
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Balanced factory machining (G6.3) minimizes vibration for smoother operation
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Shock‑absorbing design reduces belt wear and noise
🏭 Applications
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Multi‑groove belt drives in industrial machinery, such as pumps, compressors, fans, and blowers
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Packaging, food & beverage, textile, and material‑handling systems requiring compact and reliable power transmission
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Suitable for agricultural, automotive, or maintenance equipment where quick assembly and accurate alignment matter
