Recommendations for Selection of Coupling Lubricating Oils and Greases

Single Tooth-Coupling

• At a circumferential speed of approx. 60 m/s:

   

  Lubricate with No. 0 or No. 1 grease. Fill the coupling completely.

   

  Regreasing interval: 6–12 months.

   

  Requirement: Good adhesion of lubricant; low sealing requirements.
   
• At a circumferential speed of approx. 60 m/s:

   

  Lubricate with N150 or N220 gear oil. Fill to half the coupling volume to prevent leakage at standstill.

   

  Oil change interval: 12 months. Use ordinary mineral oil; low sealing requirements.
   
• At a circumferential speed of approx. 30 m/s:

   

  Lubricate with No. 0 or No. 1 grease. Fill the coupling completely.

   

  Regreasing interval: 6 months.

   

  Requirement: Good adhesion; low sealing requirements.
   

Double Tooth-Coupling

• At a circumferential speed of approx. 60 m/s:

   

  Lubricate with No. 0 or No. 1 grease. Fill the coupling completely.

   

  Regreasing interval: 6–12 months.

   

  Requirement: Good adhesion; low sealing requirements.
   
• At a circumferential speed of approx. 60 m/s:

   

  Lubricate with N150 or N220 gear oil. Fill to half the coupling volume to prevent leakage at standstill.

   

  Oil change interval: 12 months; low sealing requirements.
   
• At a circumferential speed of approx. 150 m/s:

   

  Lubricate with N150 or N220 gear oil.

   

  Requirement: Sufficient flow rate, passing axially and continuously through the coupling. No sealing required.
   

Disc Spring Coupling

• At a circumferential speed of approx. 60 m/s:

   

  Lubricate with No. 2 or No. 3 grease. Fill the coupling completely.

   

  Regreasing interval: 12 months; low sealing requirements.
   
• At a circumferential speed of approx. 150 m/s:

   

  Lubricate with N150 or N220 gear oil.

   

  Requirement: Sufficient flow rate, passing axially and continuously through the coupling.
   

Jaw Coupling

• At a circumferential speed of approx. 150 m/s:
   
  Lubricate with N150 or N220 gear oil.
   
  Requirement: Sufficient flow rate, passing axially and continuously through the coupling. No sealing required.

Leaf Spring Coupling

• At a circumferential speed of approx. 30 m/s:
   
  Lubricate with No. 1 grease. Fill the coupling completely.
   
  Regreasing interval: 1000 hours; low sealing requirements.