This is high pressure Hydraulic pump Shaft seal 50*72*5 OR 50-72-5 OR 50x72x5, mainly used in Shaft of Hydraulic pump, especially is hydraulica pump / mortors JOHN DEERE WHEEL MOTOR,  those pumps usually are usred in roader roller, land scraper, shovel loader, self-discharging car, mixer truck and excavators etc. 
 
High pressure pressure seals, such as the BAKHDSN, can be used in many applications including pumps and motors in hydro-units,
 
Progression: High pressure seal withextremely stable lip and low wear
Advantage: Singnificantly increases pressure capability limited follow ablity
 
More details please contact salesman online service:
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Email: info@hydraulicpumpseal.com