Mechanical Seals

Conical Spring

Directional single conical spring seal that self-tightens with shaft rotation.

Compact mechanical seal employing a tapered conical spring that grips the shaft or sleeve, transmitting torque without set screws or drive pins. Complies with DIN 24960 (EN 12756) installation dimensions.

Conical Spring — Mechanical Seals
Product photo · Conical Spring
Specifications

Technical profile

Design
Conical tapered spring, rotation directional (RH / LH)
Standard
DIN 24960 / EN 12756 L1k short housing
Shaft size
10 mm to 80 mm
Face materials
Steatite Ceramic / Carbon / Silicon Carbide
Secondary seal
FKM / EPDM / NBR O-rings
Pressure rating
Up to 10 bar
Temperature
-20 °C to +180 °C

Specifications are typical and vary by variant. Share your duty conditions for an exact recommendation.

Key benefits

Why this product

  • Extremely compact axial length fits tight centrifugal pump housings
  • Positive torque transmission via spring grip prevents shaft fretting
  • No set screws required, eliminating shaft scoring and damage
  • Widely standardized across European and DIN chemical pumps
Applications

Typical industries

ChemicalFoodBeverages

Related categories

Need this conical spring for your line?

Share your duty conditions and drawings — our team responds with a technical recommendation and a firm quote.