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+1 (217) 579-8045557809ADL 55 x 78 x 09ADL NBR Specifications Category: Rotary Shaft Seals Inner Diameter: 55 Outer Diameter: 78 Width: 9 Construction: Elastomer Covered Steel Material: Polyurethane Min Temperature: -40F Max Temperature: 248F Spring Material: Carbon Spring RPM: Call for Data Shaft Tolerance: 0 / -. 19mm Housing Tolerance: +0.046 / -0.000mm O. D. Tolerance: . 20 -. 35mm