360-Pack LM20UU Linear Motion 20mm Ball Bushing Linear Motion Systems - 3/8 inch (0.375") Machined type needle roller bearing

Machined type needle roller bearing NKI22/20

6210-2ZNR Ball Bearing with Snap Ring this is a popular size that could be used in any application that uses this size 50mm x 90mm x 20mm

Item Sku : RLS 8-2RS1

Bearing Inner Diameter: 289mm

Spring Ball Transfer Unit

360-Pack LM20UU Linear Motion 20mm Ball Bushing Linear Motion Systems - 3/8 inch (0.375") Machined type needle roller bearingLM20UU Linear Ball Bushings Works with 20mm Shafts 20mm x 32mm x 42mm Pack of 360 LM20UU Linear Ball Bushing works with 20mm Shafts, Bearing inner Diameter is 20mm, Bearing outer Diameter is 32mm and Bearing Length is 42mm. LM20UU Bearing Linear Ball Bushings Ball circuit: 4 Size: 20mm x 32mm x 42mm Quantity: Pack of 360