EPDM Coated Pulley 696RS

Item Number: BLH0111
Brand: BLH
Specifications: 6mm*22mm*5mm
Bearing Material: GcR15
Coating Material: EPDM (Black)
Coating Hardness: 85A
Outer Diameter: 22mm
Shape: Flat
Packaging: Industrial packaging, OEM available upon request
Minimum Order Quantity: 10,000 sets

EPDM pulleys refer to 696-2RS pulleys made primarily of ethylene propylene diene monomer (EPDM) rubber. They combine the excellent properties of EPDM rubber and are widely used in industrial transmission, food machinery, chemical machinery, and other fields. They are often used in conjunction with various bearing pulleys to further improve transmission efficiency and stability.

EPDM pulleys can withstand the corrosive effects of natural factors such as sunlight, rain, and ozone for extended periods. Under conditions of 50 pphm ozone concentration and 35% tensile strength, they can remain crack-free for over 150 hours and show no cracks after 3 years of exposure to sunlight. This characteristic makes them an ideal choice for large outdoor equipment, especially suitable for oversized pulley wheel ceramic bearings. In outdoor lifting equipment and outdoor sunshade systems, the combination of these two materials effectively resists the wear and tear on transmission components caused by harsh weather, extending the overall service life of the equipment.

EPDM rubber has a stable molecular structure, allowing EPDM pulleys to maintain stable performance in high-temperature environments. They can be used continuously at 150℃ and can withstand intermittent use up to 200℃. In high-temperature applications, such as transmission systems for chemical reactors, EPDM pulleys are often combined with hydraulic bearing pulleys. The lubrication characteristics of the hydraulic bearings complement the heat resistance of EPDM, preventing component jamming at high temperatures and ensuring smooth operation of the transmission system. Furthermore, EPDM pulleys paired with precision-grade roller bearings can achieve high-precision transmission in high-temperature production lines, meeting stringent production requirements.

EPDM pulleys exhibit excellent resistance to a variety of polar chemicals, including alcohols, acids, alkalis, and oxidants, and are specifically designed for corrosive environments such as chemical equipment and pipelines. In these applications, the combination of pulleys with bearings and EPDM pulleys is a core configuration. The structural design employing nylon roller bearings windows further enhances the corrosion resistance of the bearing components, preventing chemical media from corroding the bearing's interior. Furthermore, EPDM pulleys paired with Japanese Koyo roller bearings, due to their superior corrosion resistance and wear resistance, have become the preferred solution for transmission components in the chemical industry.

EPDM possesses excellent elasticity and tensile strength, enabling it to withstand significant deformation and stress, while also exhibiting outstanding wear resistance. This characteristic allows it to effectively buffer impact forces during transmission when paired with single-row tapered roller bearings, reducing frictional losses between the bearings and pulleys. Meanwhile, SKF single-row tapered roller bearings, as a high-quality bearing product in the industry, when combined with EPDM pulleys, achieve low-wear, low-noise operation in high-frequency, high-load transmission scenarios such as logistics conveyor lines and robotic arm joints, significantly extending equipment maintenance cycles.

EPDM pulleys have a volume resistivity on the order of 10¹⁶ Ω·cm and a breakdown voltage of 30-40 MV/m, exhibiting excellent electrical insulation properties and corona resistance, making them suitable for applications requiring high electrical insulation. In electrical equipment and high-voltage drive systems, EPDM pulleys paired with insulated bearing pulleys can prevent static electricity accumulation or leakage risks. They are particularly suitable for transmission mechanisms in precision electronic equipment with extremely high insulation requirements, ensuring safe equipment operation.

EPDM pulleys show no significant change in appearance after being placed in superheated steam at 230℃ for 100 hours, demonstrating superior resistance to water vapor compared to fluororubber and silicone rubber. They are suitable for use in humid environments or applications involving contact with water vapor. In steam boiler equipment and food processing steam sterilization lines, EPDM pulleys combined with pulley wheels with bearings can resist water vapor corrosion. When paired with precision-grade roller bearings or Japanese Koyo roller bearings, they maintain transmission accuracy and stability even in high-humidity environments, meeting stringent production requirements.

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