Sounds like you'll need to replace your motor bearings. Did it recently the bearing cost $8 for a pair.
Changing out bearings. Noisy motor.
You state you have a hayward 1hp single speed pump. What does the motor plate say? It my be AO Smith? Also what frame size? it may also be on the plate? If you provide an image of the data plate on the motor. You'll be able to confirm what bearing you'll need.
More than likely 6203 2RS like these:
Qty 1 6203 2RS Premium 6203 2RS Seal Bearing hch Ball Bearings 6203 RS ABEC3 | eBay
You do not want metal shields. (Ending with ZZ or Z)
2RS is the same as 6203DD 6203UU 6203EE 6203DD 6203VV 6203DD 6203VV 6203LL 6203LLB Ball Bearing (6302 is the bearing size the last digits are the shields)