Single row ball bearings #6202 and 6203
Solvents, ink, and water got past the seal. Bearing life 3 months. Speed 1725 & 3450 RPM.
Bearing life extended to at least 6 months.
Ink and water got past the seal. Bearing life 1-4 months. Speed 500 RPM.
Bearing life increased to at least 2-8 months.
Needle roller bearing, HJ4055228
Too much heat generated with previous lubrication method, and a severe housekeeping problem existed. Speed up to 1200 RPM.
Totally eliminated housekeeping problem. Greatly improved the performance of the printing press by reducing the thermal changes in the press, due to the bearings operating at much cooler temperatures.