LFR5206-20NPP 25mm ID x 20mm U-Groove Sealed Track Roller Bearing Track Inner Diameter - 49.721mm it features a ball-joint swivel

it features a ball-joint swivel design for flexible movement and comes equipped with two rubber seals to block dust and debris in demanding environments

Bearing is made from Silicon Nitride Ceramic

reduced drag

5302-2RS Angular Contact Ball Bearing

6904BNLS Nachi Open Ball Bearing

LFR5206-20NPP 25mm ID x 20mm U-Groove Sealed Track Roller Bearing Track Inner Diameter - 49.721mm it features a ball-joint swivelLFR5206 20NPP 25mm U Groove Sealed Guide Bearing One Bearing LFR5206 20NPP 25mm ID x 20mm U Groove Sealed Track Roller Bearing. LFR5206 20NPP Bearing UGroove Track Roller Bearing Quantity: One bearing Load rating Cw: 29. 5 KN Load rating Cow: 16. 6 KN Dimensions (mm) dw d D C B A rs 20 25 72 23. 8 25. 8 41 0. 6