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Triple pulley in side view, three V-grooves and central bore for mounting · EMMAR POLEA 140 3A
Industrial pulley 140 mm, 3 grooves, section A

EMMARIn-house manufacturingIn-house manufacturing

Industrial pulley 140 mm, 3 grooves, section A

Manufacturer part numberPOLEA 140 3AAlso known as: POLEA1403A · POLEA140 3A
Brand
EMMAR
Subcategory
Pulleys
Section
A
Series
Sección A
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Description

EMMAR POLEA 140 3A belongs to pulleys, part of our Power transmission range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for POLEA 140 3A and any equivalents.

The EMMAR 140 3A is a V-belt pulley with a 140 mm diameter, three grooves, and section A profile. It is manufactured in-house by MR, so the groove machining and balance are controlled. This pulley transmits power between parallel shafts in industrial equipment, and its three grooves allow multiple belts to share the load for stable operation.

When selecting this pulley, focus on three key specifications: the 140 mm diameter, the three grooves, and the section A profile. The diameter, together with the driving pulley, sets the speed ratio. The number of grooves determines how many belts can run in parallel. Section A defines the belt profile that fits the groove. The pulley mounts on the equipment shaft and is secured according to its bushing or keyway configuration.

Typical applications include fans, exhausters, centrifugal pumps, screw compressors, conveyor belts, and various factory machines. In these systems, the pulley works with a section A belt to transmit motion to another pulley of the same profile. The three grooves help distribute the load across multiple belts, reducing slippage when the equipment starts under load, provided the pulleys are properly aligned.

During installation, inspect the shaft for burrs, clean the seat, and follow the specified torque for the fixing screws. The pulley must sit perpendicular to the shaft and align with the driving pulley. Angular or parallel misalignment accelerates wear on both the groove and the belt. Check belt tension using the deflection method, and ensure no groove has dents or burrs that could damage the belt cord.

To request a quote for an equivalent, send the code MR-POLEA-A3-140 or provide the diameter, number of grooves, and section from your original pulley. With that information, we can suggest a suitable pulley from our manufacturing or from the power transmission line we supply. If space is limited, we can also evaluate a smaller diameter pulley with more grooves.

MR manufactures this pulley and offers it alongside belts, bushings, and housings to complete the assembly. If you are unsure which pulley fits your equipment, contact us on WhatsApp with the part code or a photo of the old pulley. Our team provides technical support and responds promptly to quote requests.

Dimensions

Size
140mm
Grooves
3
Section
A

Frequently asked questions

What does section A mean for this pulley?
Section A refers to the standardized V-belt profile that fits the groove. If your belt is section A, it will fit this pulley. Belts of other sections, such as B or C, will not work because the groove angle and width are different.
How can I confirm this pulley replaces the one on my equipment?
Compare the outside diameter, number of grooves, and belt section. If these three match and the shaft bore is compatible, it is a direct replacement. If unsure, send a photo and the code via WhatsApp for assistance.
Does the pulley include a bushing or keyway?
The mounting configuration depends on your order. The pulley is manufactured to suit your equipment's requirements. When requesting a quote, specify the shaft diameter and fixing type, and we will confirm the available variant.
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