V-belt pulley SPC 250/6, 6 grooves, for Taper-Lock 3535, cast iron

Product Description

V-belt pulley SPC 250/6, 6 grooves, for Taper-Lock 3535, cast iron is a V-belt pulley with SPC grooves made to ISO 4183 and DIN 2211, with a datum diameter of 250 mm. Number of grooves: 6. It is made of EN-GJL-200 grey cast iron, phosphated and statically balanced for a peripheral speed of up to 35 m/s.

The pulley has a seat for a Taper-Lock 3535 clamping bush (bush sold separately) - the bush bore is chosen to suit the shaft, up to 90 mm, without boring the pulley. The face width is 161.5 mm with a groove pitch of 25.5 mm.

Technical data

Applications

Drives of mining machinery, cement plants, sawmills and high power production lines.

Frequently asked questions

Which V-belt pulley has the SPC profile, a datum diameter of 250 mm and 6 grooves?

This is the v-belt pulley SPC 250/6, 6 grooves, for Taper-Lock 3535, cast iron. The outside diameter is 259.6 mm and the face width 161.5 mm.

Which V-belt fits this pulley?

A narrow SPC V-belt (22 × 18 mm) to ISO 4184 / DIN 7753. Classical C belts (22 mm) to DIN 2215 also run in SPC grooves, but transmit less power. The number of belts equals the number of grooves (6).

Which Taper-Lock bush do I need for this pulley?

A Taper-Lock 3535 bush. The bush is bought separately and its bore is chosen to match the shaft diameter - up to 90 mm for this pulley. The bush clamps onto the shaft when the screws are tightened, so the pulley does not need to be bored and removal is easy.

How do I calculate the belt speed on this pulley?

Belt speed v = π × dp × n / 60 000, where dp is the datum diameter in mm and n is the speed in rpm. On this pulley at 1450 rpm the belt runs at approx. 19 m/s. The pulley is statically balanced up to 35 m/s.

How do I calculate the ratio of a drive with this pulley?

The ratio is the datum diameter of the driven pulley divided by that of the driving pulley, e.g. 250 / 125 = 2. Because of the slight slip of the V-belt, the actual speed is approx. 1-2% lower.

What does the lead time depend on?

When ordering, please check the current stock level of this pulley - the lead time depends on it and is clearly stated according to the quantity available in each warehouse. The stock level is shown above the product price and may differ between warehouses.

Product photos are for illustration purposes only.