Alec124c41 wrote:Have you cleaned and oiled the main bearing?
Is the main bearing what the platter sits on?
The platter sits on a sub-platter that the belt goes around. Remove the belt, lift the sub-platter so the spindle slides up out of the main bearing.
Clean out the bearing with a Q-Tip. (House brand knock-offs use shorter fibers that shed.) Also wipe the spindle.
Add about 10 drops of oil. You can use #20 machine oil, 10w30, or something in that area. Don't use WD-40 except for cleaning.
Replace all parts. be sure to wipe up any spilled oil with alcohol, and do not get any oil on the belt.
Your platter should now turn freely.
BTW, Rega motors are deliberately not very strong, and will slow and stop when you try to clean a record with other than the lightest touch. Thus a well-oiled bearing is essential.