You searched for "parallel bore"
RS PRO
Yoke Cam Follower 6mm ID, 19mm OD
Part: 471-281
Small yoke cam follower with 6mm bore for light machinery applications.
RS PRO
Stud Cam Follower 8mm ID, 19mm OD
Part: 471-314
Stud-mounted cam follower, 8mm bore, 19mm roller for eccentric cams.
IKO Nippon Thompson
Miniature Type Cam Follower Cam Follower CFSFU8B, 4mm ID, 8mm OD
Part: CFSFU8B
Miniature cam follower for small precision machinery and automation.
IKO Nippon Thompson
Ring Slide & Track System Cam Follower CF8WBUUR/SG, 8mm ID, 19mm OD
Part: CF8WBUUR/SG
Ring slide track system cam follower for guided machinery applications.
INA
INA HK0910-B 9mm I.D Drawn Cup Needle Roller Bearing, 13mm O.D
Part: HK0910-B
INA compact drawn cup needle bearing for tight space machinery applications.