OKS 491 – Open Gear Spray, dry

OKS 491 is an open gear spray for dry lubrication of slowly-turning, open pinion gears and steel cables etc. subjected to high pressures, dust or corrosive influences, such as outdoor weathering.

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Areas of application

  • Lubrication of open pinion gears which are highly subject to wearing due to corrosion and continuous soiling, e.g. on construction machines, spindle presses, crushers, mills, windlasses, rubbish disposal devices, ship´s lifting jaws or water structures
  • Wire cables subject to outdoor weathering, e.g. on crane systems, lifts and aerial tramways, ship´s and offshore equipment for diverse types of sealing lubrication, including of coarse chains and chain transporters

Advantages and benefits

  • Highly effective due to outstanding wetting and lubricating properties
  • Decreased friction and wear, and therefore reduction of necessary repair times
  • Economical due to thrifty consumption as a result of small application quantities and time-saving use due to advantageous spray form
  • Dry, elastic film with high adhesive strength prevents adhesion of dust and dirt
  • Waterproof and has good corrosion protection properties

Technical specifications

  • lower operating temperature: -30 °C
  • upper operating temperature: 100 °C


For highest effectiveness, carefully clean the unstressed lubrication point, e.g. with OKS 2610 or OKS 2611 universal cleaner. Shake well before use. Spray from 20 - 30 cm distance to the prepared surface. The gear- and machine manufacturer´s instructions should be observed. Assess the lubrication frequency and quantity on basis of service conditions. Only mix with suitable lubricants.

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