180x210x15mm R21/SC Single Lip Viton Rotary Shaft Oil Seal with Garter Spring Shields thus protecting it

thus protecting it

They are basically deep-groove ball bearings

Cone part number: X30311M

C - Cup width: 20

180x210x15mm R21/SC Single Lip Viton Rotary Shaft Oil Seal with Garter Spring Shields thus protecting itSingle lip Viton metric rotary shaft oil seal with garter spring 180mm inside x 210mm outside x 15mm 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