
Industrial pulley 90 mm, 3 grooves, section C
- Brand
- EMMAR
- Category
- Power transmission
- Subcategory
- Pulleys
- Section
- C
- Series
- Sección C
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Description
EMMAR POLEA 90 3C 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 90 3C and any equivalents.
The EMMAR 90 3C is a three-groove C-section pulley with a 90 mm diameter, manufactured in-house. It transfers motion between shafts using V-belts in machines that require a dependable transmission ratio with minimal upkeep. The three grooves share the load across three belts, which raises torque capacity compared to a single-groove pulley.
This pulley has a 90 mm diameter, 3 grooves, and C section. C section matches wide-profile V-belts for medium and high power transmission. Distributing the load over three belts increases capacity and adds redundancy: if one belt fails, the remaining two continue to drive. The 90 mm diameter sets the transmission ratio when paired with the driven pulley. It is an in-house manufactured EMMAR part built for continuous service.
Typical uses include belt-driven equipment such as compressors, fans, pumps, mills, conveyors, mixers, and machine tools. It also appears in agricultural implements and process plants. Installations that vary driven shaft speed by changing pulley diameter often rely on this type. The C-section, three-groove design suits applications needing smooth running and vibration absorption, which the V-belt itself provides.
During mounting, verify that the shaft and keyway are clean and free of burrs, and that the pulley slides on without force. Align pulleys with a straightedge or laser to prevent uneven wear on belts and grooves. Use the belt manufacturer's recommended tension; loose belts slip and wear, while over-tight belts stress shaft bearings. For selection, consider the power to transmit, drive shaft rpm, and driven pulley diameter to calculate ratio and peripheral speed.
If you need an equivalent pulley, provide the full part number, section, number of grooves, and diameter. Shaft diameter and keyway type also help. With that information, we propose a pulley with similar characteristics or manufacture it. We handle standard sizes and custom work within our power transmission line.
To request a quote for this pulley or ask about another size, send the part number POLEA 90 3C by WhatsApp or email. We reply with the alternatives that best fit your application. If you are unsure about section or number of grooves, we can advise you so you select the right pulley without oversizing the system.
Dimensions
- Size
- 90mm
- Grooves
- 3
- Section
- C
Frequently asked questions
- What does C section mean?
- C section is a V-belt profile wider than A or B sections. It transmits more power per groove. This pulley has three C-section grooves, so it accepts three belts of that profile.
- How do I know if a 90 mm pulley works for my application?
- It depends on the motor rpm and the speed you need on the driven shaft. With the diameters of the drive and driven pulleys, the transmission ratio is calculated. Send us that data and we will help you verify it.
- Can I order a pulley with a different number of grooves?
- Yes. We manufacture C-section pulleys with different numbers of grooves and diameters. Tell us the size, grooves, and shaft diameter, and we will quote the option you need.

