Single Component Seal for General Purpose Sealing

With proven Chesterton® quality, the RBS seal is the ideal choice for sealing small pumps where axial space is limited. Designed with a robust friction drive and large spring format, the RBS provides reliable sealing for a large range of fluids.

Literature & Datasheets


  • Product Advantages
  • Product Characteristics Parameters
  • Product Installation View
Bidirectional seal with short axial length—fits most small pumps
Robust frictional drive makes seal tolerant to unfavorable conditions
Versatile enough to meet the needs of many applications
Features a large spring that does not clog—suitable for media containing solids
Operating Conditions Materials
Sizes 10 mm ─ 60 mm Faces CB, SSC
Pressure 12 bar g (174 psig) O-rings FKM, EPDM
Temperature -15°C ─ 200°C (5°F ─ 392°F) Springs 1.4301 (304SS)
Speed 10 m/s (2000 ft/min) Bellows EPDM, FKM
Fits EN12756, ISO-3069-S