In engineering discussions, precision and specificity are paramount, especially when deciphering technical nuances. The statement "No the 7202s are angular contact so I think the author meant 2 basic grade angular contact bearings with preload will still give backlash..." delves into the intricacies of bearing mechanics, particularly angular contact bearings and their implications on backlash.

Angular contact bearings, like the 7202s mentioned, are designed to withstand axial and radial loads simultaneously, offering enhanced performance in machinery requiring both. The mention of "2 basic grade angular contact bearings with preload" alludes to a configuration strategy aimed at reducing backlash, a crucial concern in mechanical systems where minimizing play and ensuring precision is essential.

The assertion indicates a scrutiny of the author's statement, suggesting a potential misunderstanding or misinterpretation regarding the type and configuration of bearings required to mitigate backlash effectively. By pointing out the specific type of bearings and their preload, the speaker aims to clarify and refine the discussion, emphasizing the importance of accuracy and precision in engineering discourse.

Overall, this snippet encapsulates the meticulous nature of engineering discussions, where even minor details like bearing types and preload configurations can significantly impact the performance and functionality of mechanical systems.