The Sealmaster suffixes indicates specific modifications made to a base unit to fit specific applications, the pricing of which varies depending on the modification needed. Please contact Customer Service (800 626 2120) or Application Engineering (800-626-2093) for more information. Also, you may browse our offerings through our online catalog.If you are not familiar with Sealmaster's suffixes, you should be aware that over 30% of our business are specials and half of that is handled via a suffix; The suffix indicates specific modifications made to a base unit; It is worth your time to understand the Sealmaster suffix system. Start with Power Transmission Solutions Customer Service; They have guidelines and confidentials to price suffix modified bearings with existing part numbers. Often, Engineering need to be consulted to ensure the design is appropriate for the application.