Cookies on the SKF website

SKF uses cookies on our websites to align the information shown as closely as possible to our visitors’ preferences, such as country and language choices.

Will you accept SKF cookies?


Coupling greases, unlike bearing or general purpose grease, must withstand the centrifugal forces created by a rotating coupling. These greases – KSG and KHP – are specifically formulated to resist the heavy centrifugal forces associated with all applications. These forces can cause the all-important base oil to separate from the soap thickeners and additives. Unlike greases with lithium-based thickeners, KSG and KHP greases use polyethylene thickeners, with a density closer to that of the base oil, and therefore much less susceptible to separation.
KSG grease is intended for speeds up to 3 600 r/min and KHP is best suited for speeds above 3 600 r/min.

KSG standard coupling grease

KSG is an NLGI Grade 1 coupling grease with EP additives for use in any grease-packed coupling, such as gear, grid and chain-type couplings, in standard industrial service. Superior to commonly available greases adapted to coupling use, KSG was developed specifically as a coupling lubricant.

KHP high performance coupling grease

KHP is an NLGI Grade 1 grease with EP additives which exceeds the design requirements needed for extended operating and relubrication intervals. KHP grease is recommended for high-speed grease lubricated gear couplings in petrochemical, process, and utility industries.
Minimum requirements for other greases:
  • NLGI 1 (speeds below 300 r/min, NLGI 0 or 00)
  • max 13% soap
  • min base oil viscosity 600 mm2/s at 40 °C
  • the soap in the grease must not separate from the base oil due to centrifugal forces
SKF logo