81J

It’s a rubber bellow seal. Widely used in water application pumps. Suitable for light duties and low-pressure applications.
 
Seal Characteristics
Single Acting
Internal Mounted
Dependent of Direction of Rotation
Unbalanced
 
Operating Limits
Shaft Diameter    : 10….38mm
Pressure        : 6 Bar
Temperature    : 10° to 80° C
 
Materials
Rotary Face : Carbon
Stationary Seat : Cearmic/SiC
Elastomer : NBR