BABSL OIL Seals NBR Seal Design Overview BABSL high pressure rotary seals, available in metric and imperial sizes to suit a wide variety of applications. Pressure resistant style for use without back-up ring, dust lip to protect against outside contaminants, rated up to 10 bar (depending on other operating conditions). Applications Sealing in pressurized environments without additional backup rings, for example: rotational pressure sealing in hydraulic pumps, hydraulic motors, hydrodynamic couplings. Particularly suitable for sealing low viscosity and gaseous media. Materials NBR 72 Shore A Working Pressure Media: Mineral oils, Synthetic oils Temperature:-40°C to +100°C (Material 72 Nitrile NBR 902) Surface Speed: Up to 5 m/s