SKF integral seals for spherical plain bearings

RS design

Double-lip contact seal made of

• polyester elastomer for metric bearings with a bore diameter d < 320 mm,
  –30 to +130 °C (-20 to +265 °F)
  
• acrylonitrile-butadiene rubber for metric bearings with a bore diameter d ≥ 320 mm,
  –35 to +100 °C (-30 to +210 °F)
  
• polyurethane for inch bearings,
  –20 to +80 °C (-5 to +175 °F)
  
  

• for compact bearing arrangements, mainly indoors
• for cramped spaces
• for high sealing demands when combined with an outboard seal
• for long service life with minimal maintenance
• for arrangements with bearings that rotate

LS design

• for compact bearing arrangements
• for high sealing demands
• for long service life with minimal maintenance
• for arrangements with bearings that rotate
• for difficult operating conditions in the presence of sand or mud