The 122 Series U-cup seal offers good low-pressure sealing due to its non-beveled lip design. The symmetrical design utilizes an O-ring loader to maximize lip force, making it the preferred choice in lower-pressure applications. The symmetrical design ensures that the seal lip forces are equal for every cross section and diameter. The 122 is widely used in standard- to moderate-duty hydraulic applications. Manufactured in a variety of materials and sizes from 6 mm up to 2100 mm in standard and custom diameters.