Rexnord's Falk Long Term Grease - LTG: Falk's long term grease (LTG) for flexible shaft couplings. The results of extensive research indicated that greases with high viscosities and low bleed rates produce the longest life. Falk LTG is specially formulated to provide superior lubrication for flexible shaft couplings. Falk LTG is compatible with most coupling lubricants. For optimum performance it is recommended that couplings be cleaned of old grease before packing with Falk LTG. When Falk Steelflex Grid Couplings are initially lubricated with Falk LTG, scheduled periodic maintenance is not needed. You can now get the superior protective features of these couplings, plus the toughness of steel, and eliminate periodic maintenance expense. Rexnord recommends that such couplings be inspected and re-lubed only when the connected equipment is being serviced or the coupling is opened for alignment checks. Falk Lifelign Gear Couplings' re-lube intervals for sensitive gear couplings have been extended from six months to three years. When a new Falk Steelflex grid coupling or gear coupling is aligned, installed, lubricated and operated within the limits specified in the Falk Lifelign Gear Coupling or Falk Steelflex Grid Coupling installation instructions, the following warranties apply from date of purchase. Falk Steelflex Grid Couplings are warranted for five years and Falk Lifelign Gear Couplings for three years when LTG is used. If other approved coupling greases are used, our standard one-year warranty applies to both coupling designs.