Grease Fittings

In order to allow for relubrication of equipment or bearings, a variety of grease fittings are available to mate with a standard grease gun coupler.

When ordering the appropriate style of grease fitting, the following information should be provided:

• Thread style – tapered or straight
• Thread size – 1/4”-28; 1/8” PTF; 1/4” PTF; metric; no thread (drive fitting)
• Thread length
• Ball check – spring loaded ball for maintaining pressure & dirt exclusion
• Angle of ball to shank – straight; 30, 45, 90 degrees
• Material – steel, stainless, or monel
• Special styles – Button head; relief; flush type; air vents; plugs

Factors in proper fitting selection include:

• Contamination exposure
• Internal pressure required
• Corrosion resistance
• Housing aperature – threaded or drilled
• Accessibility

Grease fittings are relatively inexpensive accessories and as such are typically sold in small packs rather than individual pieces.