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Three-groove pulley, machined steel part with V-grooves and central bore · EMMAR POLEA 340 3C
Industrial pulley 340 mm, 3 grooves, section C

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Industrial pulley 340 mm, 3 grooves, section C

Manufacturer Part Number
POLEA 340 3C
Brand
EMMARIn-house manufacturing
Category
Power transmission
Subcategory
Pulleys
Series
Sección C

EMMARIn-house manufacturing

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Description

EMMAR POLEA 340 3C is a pulleys reference, within Power transmission. Request a quote for POLEA 340 3C via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The 340 mm industrial pulley with 3 grooves section C is a power transmission component that is mounted on a machine shaft to receive a V-belt and transmit motion. Manufactured by MR Accesorios Industriales, it is designed for equipment that needs several belt lines in parallel, such as mills, compressors, fans and conveyors. Its diameter and number of grooves are defined according to the speed and power that must be moved.

This item is a pulley with a 340 mm diameter, 3 grooves and section C. The designation POLEA 340 3C summarizes those three data points: size, number of grooves and belt profile. Section C corresponds to V-belts with a high profile, the ones used when significant power must be transmitted with few lines. Because it is in-house manufactured, EMMAR brand, it is machined at the factory with dimensional control on the grooves and the central bore.

Typical applications of a 3-groove section C pulley appear in machines that work with high and continuous loads: mills, mixers, screw compressors, industrial fans, screens and belt conveyors. In those machines, the three grooves allow the power to be distributed among several belts, which reduces the load on each one and provides some tolerance to the failure of one line. It is also used to replace cast iron pulleys with a machined steel part.

To mount and select this pulley, first check the pitch diameter required by the machine and the number of grooves of the existing assembly. Then check the central bore: if it does not match the shaft, it can be machined to the corresponding size and key. Alignment between drive and driven pulleys is key so that the belts do not wear on one side. Balancing should also be checked if the pulley will rotate at high speed.

If you need a nearby size or an equivalent pulley, send us the full part number, the diameter, the number of grooves and the belt section. With that data we can see whether there is an in-house manufactured pulley that fits or whether it is better to machine it to measure. We can also advise you on the type of belt and the central bore. The more precise the information, the faster we can give you a useful answer.

To request a quote for this pulley or ask about a variant, write to us by WhatsApp and send us the part number POLEA 340 3C. At MR Accesorios Industriales we have more than 80 years in the field and we can advise you on the pulley that best suits your equipment. If you have doubts about the section, the number of grooves or the diameter, ask us before buying: it is cheaper to review the data than to change a poorly chosen pulley.

Dimensions

Size
340mm
Grooves
3
Section
C

Frequently Asked Questions

What does section C mean on a pulley?
Section C is the groove profile for type C V-belts, which have greater height and width than sections A or B. It is used in drives that handle more power per belt. The 340 mm pulley with 3 grooves section C works with three belts of that profile.
Can I replace a 2-groove pulley with this 3-groove one?
Yes, as long as the diameter and central bore match the shaft and the available space. Going from 2 to 3 grooves allows better power distribution, but it also requires checking the alignment and tension of the belts. Ask us with your machine data.
Does the pulley come with the bore for my shaft?
The central bore is defined according to the machine shaft. If you send us the shaft size and the type of key, the pulley is machined to measure. If not, it is supplied with the bore corresponding to the order. Write to us by WhatsApp to confirm.
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