Quality matches the price. I assumed it was the more common right-hand thread, but it's a left-hand thread. A timely replacement is recommended that does not require the stem bearing to be returned. Add an LH thread to the descriptive one and it will be 5 IMHO.
Bearing 608- ZZ1MC3E (8x22x7) NSK//80018
4 Review
Enhanced Performance Sydien SCS12UU Bearing Bushing Diameter for Precision Machinery
4 Review
Linear Clamping Support Bearing by Sydien
4 Review
π Wheels Manufacturing Ball Retainer Bag: Convenient Storage and Protection for Your Ball Retainers
6 Review