1623550: SEAL Hose Part Name: Butterfly Plate Part Name: Butterfly Plate FLS# (New Old): A HP00 278A 0306A HP00 199 0306A **Product Description: Radial Shaft Seal** **Technical Specifications:** **Type:** Radial shaft seal **Function:** Prevents leakage of lubricants and ingress of contaminants in rotating machinery **General Characteristics:** Flexible sealing lip that maintains contact with the shaft Metal case or outer ring for structural support and ease of installation Garter spring to maintain consistent lip pressure on the shaft **Performance Parameters:** **Shaft Speed:** Generally up to 3 000 feet per minute **Temperature:** Often less than or equal to 185°F (85°C) for standard elastomers **Shaft Hardness:** Recommended above Rockwell C 45 for optimal seal life **Shaft Finish:** 10 20 micro inches for best performance **Materials:** **Elastomers:** Nitrile (NBR)