Industrial pulley 330 mm, 4 grooves, section B
- Brand
- EMMAR
- Category
- Power transmission
- Subcategory
- Pulleys
- Section
- B
- Series
- Sección B
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Description
EMMAR POLEA 330 4B 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 330 4B and any equivalents.
The EMMAR 330 4B is a four-groove V-belt pulley with a 330 mm diameter, designed for section B belts. It transmits power between parallel shafts in fixed-ratio drives, handling moderate to high loads. Because it is manufactured in-house, the bore, keyway and balancing can be machined to match your equipment.
The part number breaks down into three key specifications: 330 for the outer diameter in millimeters, 4 for the number of grooves, and B for the belt section. Section B is a classic V-belt profile, distinct from sections A, C or narrow SPB. With four grooves, you can run four belts in parallel on the same sheave, increasing transmission capacity without a larger diameter.
This pulley suits fixed-speed drives where speed changes between a motor and driven machine: fans, compressors, centrifugal pumps, conveyors, mixers and mills. It is also common in agricultural and industrial equipment already set up for section B belts. Four grooves are typical when a single belt would be near its limit and the load is better shared across multiple belts.
When selecting, confirm the pitch diameter, groove count and belt section, plus the shaft diameter and keyway type. The 330 mm diameter and 4 grooves are fixed for this item; the bore, keyway and balancing are customized to the shaft. Check pulley alignment and belt tension to prevent uneven wear and vibration.
Need a different groove count, diameter or section? We can source an equivalent. Just provide the part number POLEA 330 4B or the equipment details: pulley diameter, belt section, grooves, shaft diameter and keyway. If you don't have the part number, send a photo or measurements taken with a caliper and we'll identify it.
MR Industrial Accessories LLC manufactures this pulley and other power transmission components. To request a quote, send the part number via WhatsApp or email. We also supply bearings, mounted units and housings, ANSI chains, sprockets, sheaves, belts, couplings, seals, lubrication and maintenance tools.
Dimensions
- Size
- 330mm
- Grooves
- 4
- Section
- B
Frequently asked questions
- What does POLEA 330 4B indicate?
- It indicates a pulley with a 330 mm diameter, 4 grooves and section B. The naming order is diameter, number of grooves, then belt section.
- Which belts fit this pulley?
- It uses section B V-belts, a classic profile different from sections A, C or narrow SPB. Four belts are mounted, one per groove; for best results, use belts of the same brand and condition.
- How do I request a different diameter or more grooves?
- Send the part number POLEA 330 4B via WhatsApp and specify your requirements: diameter, number of grooves, belt section, shaft diameter and keyway. We will find an equivalent or manufacture to your specifications.