Walkersele^® X‑Gen Helix

• Helical design actively pumps grease back towards the bearing and away from escaping to atmosphere, whilst dust lip acts to contain grease and prevent contamination ingress.
• Validated to operate at dynamic radial eccentricities of up to +/- 2mm (1/16”) at surface speeds of up to 2 m/s.
• Fatigue testing shows consistent response even at high speed, ensuring the sealing lip remains in contact with the sealing surface at all times.
• Available in endless or Walkersele X-Gen Helix OSJ format for on-site joining, no limit to diameter – fits 32 x 25 mm standard radial seal housing.
• Savings in maintenance, clean-up and lubrication through minimising grease loss.
• Grease retained in the bearing improving lubrication performance, reducing risk of bearing failure or damage and extending component life.
• OSJ variant available for simple on-site joining saving downtime and maintenance costs involved with retro-fitting seals.

Main bearing seals on large diameter wind turbines.

• A broad range of industry standard bearing greases.
• Resistant to water, sea-water and mineral oils.

• Temperature: -35°C to +125°C (-31°F to +257°F) dependent on material choice.
• Pressure: pressure differential of up to 10 kPa / 0.1 bar (1.5 psi).
• Surface speed: 2.0 m/s (394 fpm) dependent on material choice.
• Eccentricity: ± 2 mm (1/16”).

Please contact us for operating conditions outside these parameters.