SKF 1238257 HDL / HDS / HS radial shaft seal for heavy industrial service

SKF 1238257 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 1238257 HS code: 4016.93 Shaft diameter: 314.325 mm Housing bore diameter: 352.43 mm Housing groove width: 19.05 mm Limiting speed: 456 r/min Maximum operating temperature: 100 °C minimum operating temperature: -35 °C Permissible circumferential speed: 7.5 m/s Rotational speed: 456 r/min Design: HS7 Auxiliary lip: No Sealing lip material: Nitrile rubber (NBR) Type of outside diameter: All-rubber Unit system: Inch Product net weight: 1.16 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 1238257
• Trelleborg 1238257
• Chesterton 1238257
• Garlock 1238257
• Equivalent: 1238257 (Freudenberg)
• Equivalent: 1238257 (Trelleborg)
• Equivalent: 1238257 (Chesterton)
• Equivalent: 1238257 (Garlock)