I'm in the process of building a gear pump cream machine. I'm hung up on what gear pump I can use. Oberdorfer makes a couple different bronze 1" pumps. OBN9000 and a N9000L. The only difference i can see between them is the obn9000 has no grease zerks and uses carbon graphite bearings. Whereas the N9000L has grease zerks and I can't find what type of bearing it uses,if any.
Woukd the carbon graphite bearings in the obn9000 bronze pump be safe for cream making? Thank you!