
Industrial pulley 300 mm, 1 groove, section A
- Brand
- EMMAR
- Category
- Power transmission
- Subcategory
- Pulleys
- Section
- A
- Series
- Sección A
We reply promptly.
Tell us the quantity you need and request a quote by WhatsApp or email.
Can't find the exact model? Tell us the part number or model you need. We'll track it down and quote it, whether or not it appears in our catalog.
Description
EMMAR POLEA 300 1A 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 300 1A and any equivalents.
This EMMAR pulley has a 300 mm diameter, one groove, and section A. It mounts on a shaft to drive a single V-belt in fans, compressors, conveyors, and other plant equipment. The commercial designation is POLEA 300 1A. MR manufactures it, so you get consistent groove geometry and reliable alignment in continuous duty.
The 300 mm diameter sets the speed ratio when paired with another pulley in the same drive. Section A is a narrow V-belt profile, so the groove is cut to match that belt only. With one groove, mounting and tensioning are straightforward. MR produces this pulley with dimensional control to keep the belt seated evenly and running true.
Typical applications are single-belt drives: axial and centrifugal fans, screw compressors, centrifugal pumps, light conveyor belts, and machine tools. You also see it in plant setups where a shaft speed needs a simple change. Because it is section A, it suits small to medium power runs where a multi-groove pulley is not required.
For installation, check that the shaft diameter and key match the pulley bore. The pulley is secured with a set screw or a taper bushing, depending on the setup. Align the pulleys with a straightedge or laser to prevent uneven belt wear. Set tension per the belt manufacturer's recommendation. If the pulley runs at high speed, it should be balanced.
Need a different size? We can manufacture a pulley with another diameter, groove count, or section. Send the equipment data: pitch diameter, number of grooves, belt section, and shaft diameter. We can also machine the bore and keyway to match. With that information, we will provide a quote.
To order this pulley or an equivalent, message us on WhatsApp and mention POLEA 300 1A. If you are unsure about the section or diameter, send a photo of the old pulley or the shaft measurements. The MR team will help you confirm the fit so the drive runs properly.
Dimensions
- Size
- 300mm
- Grooves
- 1
- Section
- A
Frequently asked questions
- What does section A mean for this pulley?
- Section A is a narrow V-belt profile. The groove is machined to fit that belt and transmit motion. It is not compatible with other sections like B or C because the groove angle and width differ.
- Can I get a pulley with more grooves?
- Yes. We manufacture pulleys with the number of grooves you need. Just tell us the groove count, diameter, and section. We can also make the bore and keyway to match your shaft. Send the details and we will quote.
- How do I check if this pulley replaces the one I have?
- Compare the outside or pitch diameter, the number of grooves, and the belt section. If they match, it is likely to work. Also verify the shaft diameter and key. If in doubt, send a photo and measurements via WhatsApp and we will help.

