65x85x10mm R21/SC Single Lip Viton Rotary Shaft Oil Seal with Garter Spring Shields The pulley grooves are of

The pulley grooves are of a special design to give this correct meshing of the timing belt teeth with minimal friction

Reference speed: 17000 r/min

laquer or dirt

Series 18700

If the nut is still not loosened after the first blasting attempt

65x85x10mm R21/SC Single Lip Viton Rotary Shaft Oil Seal with Garter Spring Shields The pulley grooves are ofSingle lip Viton metric rotary shaft oil seal with garter spring 65mm inside x 85mm outside x 10mm wide. Viton oil seals feature excellent resistance to petroleum products and solvents. They have good high temperature and low compression set characteristics. They are suited for use with wide chemical exposure situations and for hard vacuum service. Viton is used because it has a lower probability of catching fire, even with the increased percentages