Some race balls had flat areas that resulted in frictional and torsional bindings. I found several SKF bearings of the same type that were just great. SKF is a true bearing manufacturer.
Bearing 608- ZZ1MC3E (8x22x7) NSK//80018
4 Review
π Wheels Manufacturing Ball Retainer Bag: Convenient Storage and Protection for Your Ball Retainers
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Xiaomi Air 2 Pro Wireless Headphones, Black
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Linear Clamping Support Bearing by Sydien
Muffler Deflector 18331 ZE3 810 For HONDA
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Stens 285 556 Caster Yoke
Experience Ultimate Comfort with Happybuy Electric Recliner Massage Actuator
Stens 150 260 Recoil Starter Assembly: Efficient and Reliable for Easy Start-ups