70x110x20 Bearing Isolators are mechanical devices designed to seal and protect bearings from infiltration by fluid and airborne contaminants. Chain and Bearing Lubricators are mechanical devices used to deliver oils, grease, or other lubricants to moving or contacting parts or joints for the purpose of reducing friction.The use of bearings, simplistic as they may have been then, dates back to at least the ancient Egyptians, and perhaps even predated the invention of the wheel. Today bearings can be found wherever there is relative motion between two surfaces, which includes virtually everything from household appliances to industrial machinery.

The bearings are used to allow rotation or linear movement and to reduce friction between two objects. The ease of movement (rotary or linear) reduces friction and improves the speed and efficiency of the object.