Stieber CSK25-M-C5 Bearing
A nice touch is that the ball bearing fits perfectly without any shimmy or wobble.
STIEBER CSK25-M-C5 FREEWHEEL CLUTCH BEARING-CSK25-MC5
STIEBER CSK25-M-C5 FREEWHEEL CLUTCH BEARING. Manufacturer: STIEBER. STIEBER CSK20-F3111B-C4 FREEWHEEL CLUTCH BEARING. Type: Freewheel Clutch Bearing. Radial internal clearance: C5. INA RWU45-E-L G2 V3 RECIRCULATING ROLLER BEARING CARRIAGE.