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SPC Profile

Heavy-duty metric V-belt profile per ISO 4184 and DIN 7753 with 22 mm top width and 18 mm height, designed for high-power industrial transmissions. Approximate imperial equivalent: C profile. Minimum pulley diameter: 224 mm (raw-edge) to 250 mm (wrapped). Power range: 7.5-250+ kW per belt depending on speed and configuration; multiple belts common. Maximum peripheral speed: 42 m/s. Used in crushers, large fans, heavy compressors, mining conveyors, cement plants, and sugar mills. Available in wrapped, raw-edge, and cogged versions. Datum length (Ld) range: 2000-12500 mm typically. The SPC profile handles roughly 3x the power of SPA at equivalent speed. Brands: Optibelt, Gates, Continental, Mitsuboshi, Bando.

What you need to know

  • Heavy-duty metric V-belt profile per ISO 4184 and DIN 7753 with 22 mm top width and 18 mm height, designed for high-power industrial transmissions.
  • Approximate imperial equivalent: C profile.
  • Minimum pulley diameter: 224 mm (raw-edge) to 250 mm (wrapped).
  • Power range: 7.5-250+ kW per belt depending on speed and configuration; multiple belts common.
  • Maximum peripheral speed: 42 m/s.

Full definition

The SPC profile is a heavy-duty metric V-belt profile specified under ISO 4184 and DIN 7753 standards, characterized by its dimensions of 22 mm top width and 18 mm height. It is primarily designed for high-power industrial applications, making it suitable for demanding environments where reliability and efficiency are crucial. The SPC profile is often used in applications that require significant power transmission, such as crushers, large ventilation fans, heavy-duty compressors, mining conveyors, cement production facilities, and sugar mills. Its robust construction allows it to handle higher loads compared to smaller profiles, thus improving overall system performance and reducing the risk of failure.

The SPC profile's approximate imperial equivalent is the C profile, which serves a similar function in power transmission. A key feature of the SPC is its ability to accommodate a minimum pulley diameter of 224 mm for raw-edge belts and 250 mm for wrapped belts. This design flexibility allows for compatibility with various pulley systems commonly found in industrial setups. The power transmission capacity of the SPC profile ranges from 7.5 kW to over 250 kW per belt, depending on the specific speed and configuration of the installation, and it is not uncommon to use multiple belts in parallel to meet higher power requirements. With a maximum peripheral speed of 42 m/s, the SPC profile is engineered for high-speed applications, ensuring efficient energy transfer.

Additionally, the SPC profile is available in several variations, including wrapped, raw-edge, and cogged versions, allowing for customizable options based on application needs. The datum length (Ld) of the SPC profile typically ranges from 2000 mm to 12500 mm, providing versatility in design and installation. Notably, the SPC profile can handle approximately three times the power of the SPA profile at the same operational speed, making it an ideal choice for high-demand industrial tasks. Brands recognized for producing SPC profiles include Optibelt, Gates, Continental, Mitsuboshi, Bando, and Rexon, ensuring a wide availability of quality options for industrial engineers and maintenance personnel.

What you need to know

  • What you need to know:
  • The SPC profile measures 22 mm in top width and 18 mm in height, making it suitable for heavy-duty applications.
  • Minimum pulley diameter for SPC belts is 224 mm (raw-edge) and 250 mm (wrapped), accommodating various pulley configurations.
  • Power transmission capabilities range from 7.5 kW to over 250 kW per belt, depending on the setup, with multiple belts often utilized.
  • Maximum peripheral speed is 42 m/s, allowing for high-speed applications in industrial settings.
  • SPC profiles are available in wrapped, raw-edge, and cogged versions, with datum lengths typically between 2000 mm and 12500 mm.

Industrial applications

  • 1Used in crushers for breaking down materials in mining operations.
  • 2Applied in large ventilation fans within HVAC systems in industrial plants.
  • 3Utilized in heavy-duty compressors for efficient air compression in manufacturing.
  • 4Commonly found in mining conveyors for transporting bulk materials.
  • 5Employed in cement plants for various equipment including grinding mills and mixers.

Common mistakes

  • ✕Incorrect pulley size selection can lead to premature belt wear and failure.
  • ✕Neglecting proper alignment of belt drives may result in uneven tension and reduced efficiency.
  • ✕Overlooking the need for multiple belts in high-power applications can lead to insufficient power transmission.
  • ✕Failing to consider the specific belt type (wrapped vs. raw-edge) for the application may affect performance.
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Pro tip

Ensure proper alignment and tensioning of SPC belts during installation to maximize lifespan and efficiency.

Technical standards

  • ISO 4184 - Specification for V-belts and belt drives.
  • DIN 7753 - Standard for V-belts, including standardized profiles and dimensions.

Suppliers of belts & drives in Mexico

AguascalientesVer Bandas Industriales
Ciudad JuárezVer Bandas Industriales
Ciudad de MéxicoVer Bandas Industriales
GuadalajaraVer Bandas Industriales
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Applicable standards

ISO 4184DIN 7753
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