7221AVH Nilos Ring for 7221 Series Bearings 105x183x4mm

Nilos AVH Sealing Rings: A Nilos ring that seals the outer roller bearing ring of an angular contact bearing is described as an AVH type. They are used to provide sealing for bearings that have no shields or seals. A Nilos ring of suitable dimensions can be installed so that the Nilos ring fully encloses the open area of the bearing.
Nilos rings are required in particular installations where excess dirt or debris may be present that could penetrate up to the bearing, if some further mechanical protection is required or if condensation is formed.
Sealing is produced by placing the sealing edge of the Nilos ring under light pressure at the outer bearing ring so that it rubs to a greater or lesser depth into the hardened roller bearing ring. The fine labyrinth produced as a result prevents the leakage of grease and the penetration of dirt into the bearing.
Note: If sealing is required around the inner raceway then a JVH type Nilos ring should be used.

Brand / Quality:

Nilos - High Quality

Inside Diameter:

105mm

Outside Diameter:

183mm

Width:

4mm

Thickness:

0.5mm

Item Type:

AVH Nilos Ring