Espey WDK-BHS

Espey WDK-BHS For a larger view, please mouseover the image.
For a larger view, please mouseover the image.
Item Description
1 Flat seal
2 Housing, 2-piece
3 Seal ring
4 Tension spring
5 Detent
6 Spring
  • Multi-part seal rings, radially cut
  • Split housing design
  • Short axial installation length (max. 36 mm)
  • Very small operation gap
  • Dry running
  • Self-adjusting seal rings
  • Seal rings bear radial shaft movements
  • Compensates axial shaft movements
  • Seals on both sides of the shaft
  • Resistant to sea water
  • No sealing components mounted on the shaft and hence no additional shaft vibrations
  • Seal rings running contact-free - sliding faces and machine consume no additional power
  • Easy installation by split housing design (shaft removal not required)
  • Long-term operation time
  • Maintainability
  • Segmented seal rings for easy replacement
Shaft diameter:
d = 40 ... 800 mm (1.57" … 31.5")
Operating pressure:
p = vacuum ... 3 bar (43 PSI) abs.
Operating temperature:
t = max. 225 °C (437 °F)
Sliding velocity: vg = max. 40 m/s (131 ft/s)
Radial play: ±5.0 mm (±0.2") (depending on shaft diameter)
Axial movement: theoretically unlimited
Angular deviation: ±2° (central installation, depending on shaft diameter)
Seal ring: PTFE compound
Housing: 1.4571, others
Tension spring / detent: 1.4571
  • ISO 9001
  • American Bureau of Shipping (ABS),
  • Bureau Veritas, Lloyd's Register EMEA,
  • Det Norske Veritas, Russian Maritime Register of Shipping,
  • Germanischer Lloyd and others
  • Shipbuilding
  • Sea water, water
  • Drive shafts in ships, bulkheads