Industrial pulley 130 mm, 4 grooves, section A
- Brand
- EMMAR
- Category
- Power transmission
- Subcategory
- Pulleys
- Section
- A
- Series
- Sección A
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Description
EMMAR POLEA 130 4A 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 130 4A and any equivalents.
The POLEA 130 4A is a V-belt drive pulley from EMMAR, built for power transmission between parallel shafts on industrial machinery. It measures 130 mm in diameter and carries 4 grooves in section A, so up to four belts can run side by side on the same sheave. Because EMMAR produces this pulley in-house, machining and balancing options can be reviewed against the requirements of the application.
Reading the designation is straightforward: 130 is the diameter in millimeters, 4 is the number of grooves and A is the belt section. Section A is the classic narrow-profile V-belt, so the grooves are cut to seat that profile only. Running four belts on one pulley spreads the transmitted power across the grooves instead of concentrating it on a single belt.
The part is made of cast iron or machined steel, with ground grooves so each belt seats evenly and does not slip. The 130 mm diameter sets the transmission ratio once the pulley is paired with another pulley in the same drive. Typical installations include machine tools, compressors, fans, pumps, conveyor belts, process equipment, mills, mixers and elevators.
Mounting is normally on a shaft with a keyway, held by a set screw or a taper bushing, depending on how the equipment is designed. In a multi-belt drive, a 4-groove pulley also lets the machine keep running on the remaining belts if one breaks, until the belt is replaced.
Before ordering, confirm the outside or pitch diameter the machine calls for, the number of grooves and the belt section. Section A does not interchange with other profiles: a B or SPZ belt will not fit this pulley. Check the shaft diameter, the fastening method and the balancing needed for high-speed operation. At assembly, align the pulleys with a straightedge or laser and tension the belts per the equipment manual to avoid premature wear.
If the exact size is not what you need, another diameter, groove count or section can be requested. Send the original part number, a photo of the part and the shaft details, meaning diameter, keyway and fastening system, along with the belt you use and the center distance. With that information, EMMAR can evaluate in-house production of an equivalent pulley. To request a quote, send the part number POLEA 130 4A by WhatsApp or email.
Dimensions
- Size
- 130mm
- Grooves
- 4
- Section
- A
Frequently asked questions
- What does section A mean on this pulley?
- Section A is the classic V-belt profile, 13 mm wide at the top. It is not compatible with section B, SPZ or other belts. If the machine runs a different section, the pulley has to be requested with the matching profile.
- Can this pulley be supplied in another diameter or groove count?
- Yes. Since EMMAR manufactures it in-house, other sizes can be requested. Provide the diameter you need, the number of grooves and the belt section, plus the shaft data to define the fastening.
- How does the pulley mount on the shaft?
- It mounts on a shaft with a keyway and is secured with a set screw, a taper bushing or a similar system depending on the design. Aligning the pulleys and tensioning the belts per the equipment manual helps prevent wear.