Difference between bearings 6104 and 104
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For a pump that requires bearing replacement, the manufacturer specified model 104. After checking online, I found that 104 is equivalent to 6004. But is model 104 the same as 6104?
104 is an old designation; it corresponds to 6004. Its dimensional parameters are the same as those of 6104: inner diameter of 12 mm, outer diameter of 42 mm, and width of 12 mm.
In other words, do 104 and 6004, 6104 have the same dimensions?
This post was last edited by 3983596_FPPZ on 2018-10-29 at 15:35. The 104 and 6004 bearings are the same; both are deep groove ball bearings with an inner diameter of 20, an outer diameter of 42, and a thickness of 12. The 104 follows the old standard (GB272-88), while the 6004 follows the new standard (GB272-93)； I’ve never heard of 6104; it’s probably the common name for the first two types of bearings (likely a result of a model upgrade bug). Download the manual yourself to check it out: https://bbs.hcbbs.com/thread-1762496-1-1.html
Using your standards, I have found the latest standard, GBT272-2017 Code Method for Rolling Bearings: lol
Everyone can download the reference material for study: https://bbs.hcbbs.com/thread-2121881-1-1.html
Is there a table comparing old and new bearing numbers? This way, it can be checked right away.