Shimano Hub Overhaul (Cup and Cone) | Mountain Bike Maintenance
Bicycle Repair Maintenance & Cycling Traveller - The common Shimano® freehub uses internal loose ball bearing, pawls and springs. Be aware that it is not recommend to completely dismantling the freehub itself.
Hub Overhaul and Adjustment: Cup and Cone Style | Park Tool
Shimano Hub Overhaul (Cup and Cone) | Mountain Bike Maintenance
Shimano says RIP to cup-and-cone bearings with new hubs - BikeRadar