4 different bearing blocks in one pack. Blocks are obviously from different manufacturers with different tolerances. See image. Pay attention to the orientation and processing.
Xiaomi Air 2 Pro Wireless Headphones, Black
86 Review
π Wheels Manufacturing Ball Retainer Bag: Convenient Storage and Protection for Your Ball Retainers
6 Review
π§ Maximizing Performance: VOLV Precision Chrome Steel Bearing for Optimal Efficiency
3 Review
FKG 99502HNR Bearing Width Pre Lubricated
5 Review