Description

OPTIBELT TB SPZ 250/3 PULLEY OPTIBELT | V-grooved Pulley

🔧 Key Specifications

• Brand & Model: OPTIBELT TB SPZ 250/3

• Belt Profile: SPZ (narrow V‑belt, ~9 mm top width)

• Grooves: 3

• Pitch Diameter: 250 mm

• Outside Diameter: 254 mm

• Face/Overall Width: 40 mm

• Bore Type: Taper‑Lock, using bush series 2012, accommodating shaft bores from approximately 14–50 mm

• Material & Construction: Cast iron, spoked design, precision-machined

• Length Through Bore (Hub): ~32 mm

• Weight: ~9.5 lb (≈ 4.3 kg)

• Balance Grade: Typically G6.3 (one-plane) for up to 400 mm or 1500 rpm; can be two-plane balanced per ISO if needed

⚙️ Features

• Three precise SPZ grooves ensure reliable belt tracking and efficient power transmission.

• Taper‑Lock bush simplifies installation and removal—just tighten a few screws to mount securely.

• Spoked cast iron design offers durability while minimizing mass and inertia.

• Factory-balanced (G6.3) for reduced vibration; opt for two-plane balancing for high-speed applications per ISO guidelines

• Corrosion-resistant finish, typical of Optibelt’s standard phosphated surface treatment.

🏭 Applications

• Ideal for industrial machinery, including pumps, compressors, blowers, and fans.

• Common in packaging, textile, material handling, and food & beverage systems.

• Well-suited to agricultural equipment and general-purpose drives requiring compact multi-groove pulleys.

• Great for maintenance-intensive environments with frequent pulley swaps, thanks to the easy taper-bush system.