The magnet thickness is more thickness better?

In permanent magnet motors and brushless motors, the thickness of the magnet is not better, but needs to be appropriately selected within a certain range to meet specific performance and design needs. The thickness of the magnet is an important parameter in motor design, affecting the performance and operating characteristics of the motor.
Requirements for the Splicing Magnets

Alignment and Precision: Spliced magnets require very precise alignment to ensure the magnetic field is evenly distributed in the motor.
To be part of a permanent magnetic motor, what are the magnets’ requirements?

Sintered Neodymium Iron Boron (NdFeB) magnets are very powerful magnets, often with high magnetic properties, but at the same time require special handling and design to meet the requirements of motor applications.
Your Magnet thickness is suitable for your Permanent magnetic motor?
When the inner or outer magnetic circuit ring is fixed, when the thickness increases, the air gap decreases and the effective magnetic flux increases.