lipped seal / circular / U-shaped / NBR
51k series

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lipped seal lipped seal - 51k series


  • Type:


  • Configuration:

    circular, U-shaped

  • Material:


  • .application:

    for rotating shafts, compression, bearing protection

  • Other characteristics:

    dynamic, radial

  • Temperature limit:

    Max.: 200 °C (392 °F)

    Min.: -20 °C (-4 °F)

  • Pressure limit:

    7 psi, 58 psi

  • Diameter:

    Max.: 1,200 mm (47 in)

    Min.: 300 mm (12 in)


Chesterton 51K seals are high-performance radial seals for heavy duty, dynamic rotary seal applications. These seals provide long-lasting sealing and superior protection against ingress of solid particles, dust and fluids. They protect bearing houses and gearboxes across the heavy indiustries—even in the most hostile working environments.​High-performance elastomers used in these seals create resistance to compression setting, wear, and aging. A broad range of engineered elastomers allow use in high and low ​temperature conditions and provide excellent fluid compatibility. The 51K is manufactured by compression molding technology that provides accurate dimensional, geometrical tolerances and improved fitting. The seal body is equipped with a strong, flexible fabric back for tight fitting within the seal cavity. A helical garter spring maintains the seal lip contact and sealing force on the shaft.