OPTIBELT SPZ 112-2

Optibelt V-Belt Pulley 112mm 2-Groove SPZ 112-2

Description

This is a high-quality V-belt pulley manufactured by Optibelt, designed for reliable mechanical power transmission. It is engineered for use with SPZ profile V-belts and features two grooves for increased torque capacity. The pulley is constructed from durable cast iron, ensuring a long service life in demanding industrial environments. This unit has a pilot bore and may require machining to fit your specific application.

Specifications

• Manufacturer: Optibelt
• Model: SPZ 112-2
• Product Type: V-Belt Pulley / Sheave
• Belt Profile: SPZ
• Pitch Diameter: 112 mm
• Number of Grooves: 2
• Material: Cast Iron (EN-GJL-200 or similar)
• Bore: Pilot Bore (requires machining)

Label Info

• Brand: optibelt
• Part Number: SPZ 112-2

Application

Ideal for a wide range of power transmission systems in industrial machinery, including pumps, fans, conveyors, and machine tools where SPZ V-belts are used.

Country of Origin

Germany

CO2 Impact

By purchasing this pre-owned pulley, you contribute to a circular economy and help avoid approximately 2.4 kg of CO2 emissions associated with the production of a new unit. This saving is comparable to the emissions from driving a standard car for 12 kilometers.

Availability

This item is in stock and ready for immediate dispatch. Order now from spareparts2day for expert support and fast delivery.

FAQ

Question?
What does “SPZ” signify in the model number SPZ 112-2?

SPZ refers to the specific V-belt profile the pulley is designed for. It is a narrow section V-belt with a top width of approximately 9.7 mm and a height of 8 mm. It is crucial to match the pulley profile with the correct V-belt profile for optimal performance and longevity.

Question?
Does this pulley come with a taper lock bush or is it a pilot bore?

This particular pulley appears to have a standard pilot bore. This means it needs to be machined (bored and keywayed) to fit the specific diameter and key of your motor or drive shaft. It is not compatible with taper lock bushes out of the box.

Question?
What is the recommended maintenance for a cast iron pulley like this?

Maintenance for cast iron pulleys is straightforward. Regularly inspect the grooves for wear, which can look like “dishing” or a polished, concave shape. Worn grooves can damage belts and reduce efficiency. Also, ensure the pulley is clean and free from oil, grease, or debris, and check for proper alignment with other pulleys in the drive system.

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Last Update: Friday, March 13, 2026