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Industrial pulley 550 mm, 2 grooves, section A
- Manufacturer Part Number
- POLEA 550 2A
- Brand
- EMMARIn-house manufacturing
- Category
- Power transmission
- Subcategory
- Pulleys
- Series
- Sección A
In-house manufacturing
We respond promptly.
Request your quote via WhatsApp or email, with the quantity and time frame you need.
Can't find the exact model? Write to us with the part number or model you're looking for: we'll find it and quote it, even if it's not listed in the catalog.
Description
EMMAR POLEA 550 2A is a pulleys reference, within Power transmission. Request a quote for POLEA 550 2A via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
The 550 2A pulley is a V-belt drive pulley manufactured by EMMAR Accesorios Industriales. It has a 550 mm diameter, two grooves and section A, which makes it suitable for transmitting power in equipment that runs with belts of that section. It is used in industrial machines, pumps, fans and drive systems where a defined transmission ratio and good belt grip are required.
This pulley has a 550 mm diameter, 2 grooves and section A. Section A corresponds to classic V-belts with a narrow profile, and the two grooves allow mounting two belts in parallel on the same shaft. It is manufactured by EMMAR, with dimensional and balancing control so that it rotates without vibration at the usual working speeds. The outside diameter and overall width are confirmed against a drawing or sample according to the application.
It is used in power transmissions of machine tools, compressors, centrifugal pumps, fans and conveyors. Also in process equipment where the driven shaft speed needs to be reduced or increased. Being section A with two grooves, it is common in installations that need some redundancy: if one belt fails, the other keeps transmitting until both are replaced.
To select it, take into account the pitch diameter, the number of grooves, the belt section and the shaft diameter. Check that the driving and driven pulleys have the same section and that the center distance allows correct tensioning. Mounting is done with a key and set screw, and it is advisable to align the pulleys with a straightedge or laser to avoid uneven belt wear.
If you need a different size or an equivalent pulley, send us the part number POLEA 550 2A or the shaft, groove and section dimensions. We can also manufacture a custom pulley to the dimensions you specify. We work with our own profiles and machining, which allows adapting the bore diameter, hub length and number of grooves to your equipment.
To request a quote for this pulley or ask about a variant, write to us on WhatsApp with the part number POLEA 550 2A and the quantity you need. We will reply shortly with manufacturing alternatives. MR Accesorios Industriales manufactures pulleys, split plummer block housings and ANSI roller chains, and distributes bearings, seals and power transmission products for industrial maintenance.
Dimensions
- Size
- 550mm
- Grooves
- 2
- Section
- A
Frequently Asked Questions
- What does it mean that it is section A and 2 grooves?
- Section A indicates the V-belt profile it accepts: classic belts with a 13 mm top width. The 2 grooves allow mounting two belts in parallel on the same pulley, which increases transmission capacity or provides backup if one fails.
- Can I order it with a different bore diameter?
- Yes. Since it is in-house manufacturing, EMMAR brand, we can machine the bore to your shaft size. Provide the shaft diameter, hub length and whether it has a keyway. We can also adjust the number of grooves or the outside diameter.
- How do I know if it replaces the pulley I have installed?
- Compare the pitch diameter, belt section, number of grooves and shaft diameter. If you have the old part number or a sample, send it by WhatsApp and we will confirm the equivalence or manufacture it to size.

