OPTIBELT SPB 250-2 2517 V-Belt Pulley

Optibelt SPB 250-2 2517 V-Belt Pulley

Description

This is a robust V-belt pulley from Optibelt, designed for reliable and efficient power transmission in industrial machinery. It is manufactured from high-grade cast iron for durability and long service life. This model is pre-bored to accept a 2517 taper lock bush for easy and secure shaft mounting.

Specifications

• Manufacturer: Optibelt
• Type: V-Belt Pulley for Taper Bush
• Model: SPB 250-2
• Taper Bush Size: 2517
• Belt Profile: SPB
• Number of Grooves: 2
• Pitch Diameter: 250 mm
• Outer Diameter: approx. 257 mm
• Material: Cast Iron EN-GJL-200

Label Info

• optibelt
• SPB 250-2
• 2517

Application

Suitable for a wide range of applications including conveyor systems, industrial fans, pumps, compressors, and general machine building where V-belt drives are used for power transmission.

Country of Origin

Germany

CO2 Impact

Choosing this reused component prevents the emission of approximately 14 kg of CO2, which is comparable to driving a car for 70 km. This is achieved by avoiding the production of a new cast iron part.

Availability

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

FAQ

What is the correct procedure for mounting a 2517 taper bush on this SPB 250-2 pulley?

Ensure the bore of the pulley and the outside of the bush are clean and free of oil or dirt. Align the unthreaded holes in the pulley with the threaded holes in the bush, insert the screws, and tighten them evenly and progressively until the specified torque is reached and the bush is securely locked in the hub.

What is the maximum permissible speed (RPM) for this cast iron pulley?

The maximum speed depends on the balancing quality and application, but for a standard pulley of this size (250mm), it is typically around 4750 RPM. Always consult the manufacturer’s technical datasheet for the exact limits for your specific application.

How can I ensure proper V-belt tension when using this two-groove pulley?

Proper tension is crucial. Use a tension gauge to measure the force required to deflect the belts at the midpoint of their span. Both belts in a dual-groove setup should have similar tension to ensure even load distribution and prevent premature wear. Refer to Optibelt’s guidelines for SPB profile belts for specific tension values.

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Last Update: Friday, March 13, 2026