When I rewind the 29cm reels on my Tascam 34 it looks and sounds a bit like a turbine spooling up and can take almost 10 seconds to stop.
Another issue is the tension of the take up reel at playback.
The tape machine is also the main reason why tapes can suffer from demagnetisation. Regular service with a demagnetisation tool is important however improper use of the tool can make things worse.
A tape that experiences wear from a lot of use was backed up with another tape and/or is grandfathered with a master tape.