1.Product Overview The 6301-2RSH/C3 is single row deep groove ball bearing equipped with double low-friction RSH reinforced NBR contact rubber seals and C3 enlarged radial clearance. The RSH lip seals tightly fit the raceway surface to block dust, water mist and liquid splashes, perfectly suited for damp, dusty and polluted working environments. C3 extra internal clearance reserves expansion space to eliminate thermal expansion jamming during continuous high-speed and high