SKF 557644 HDL / HDS / HS radial shaft seal for heavy industrial service

SKF 557644 hdl / hds / hs radial shaft seal for heavy industrial service. SKF wide-cross-section radial shaft seal for heavy industrial shafts, generally above 200 mm bore. Wider seal face improves fatigue life on paper mills, marine deck machinery, steel mills, cement mills and mining conveyors. Standard elastomer nitrile (NBR) or hydrogenated nitrile (HNBR); FKM available. Full metal case (HS type) or rubberised outside diameter (HMS variants). Dimensioned per ISO 6194 and OEM engineering drawings.

Type

HDL / HDS / HS radial shaft seal for heavy industrial service Designation: SKF 557644 HS code: 4016.93 Shaft diameter: 247.65 mm Housing bore diameter: 290.53 mm Housing groove width: 15.88 mm Limiting speed: 771 r/min Maximum operating temperature: 100 °C minimum operating temperature: -35 °C Permissible circumferential speed: 10 m/s Rotational speed: 771 r/min Design: HS8 Auxiliary lip: No Sealing lip material: Nitrile rubber (NBR) Type of outside diameter: All-rubber Unit system: Inch Product net weight: 0.334 kg eClass code: 23-07-08-01 UNSPSC code: 31181602

Standard

SKF designation convention (see description for governing ISO / DIN)

Material

As declared by SKF designation suffix

Temperature Range

Per SKF product data

HS Code

4016.93

• Freudenberg 557644
• Trelleborg 557644
• Chesterton 557644
• Garlock 557644
• Equivalent: 557644 (Freudenberg)
• Equivalent: 557644 (Trelleborg)
• Equivalent: 557644 (Chesterton)
• Equivalent: 557644 (Garlock)