Bearing surfaces are made from hardened steel.
Cup and cone ball bearings.
The cones are conical nuts that screw onto the axle.
The combination of cup cone and balls forms the bearing.
In the left image below is a high quality cone magnified two hundred times.
The surfaces are cut typically by grinding.
Round ball bearings roll on the curved surface of the cup and cone.
Even the highest quality bearing surfaces will have slight grinding marks.
A broad range of ball cup cone bearings can be sourced using this comprehensive vertical portal dedicated to helping in research and purchasing.
If the cones are screwed on too far they exert pressure on the bearing balls.
Top quality ball cup cone bearings are offered in this comprehensive source of manufacturers distributors and service companies for the industrial marketplace.
Angular contact bearings also allow easier maintenance adjustability and serviceability.
Cup cone sets bearings lm11749 lm11710 cup cone tapered bearing set brand new dura roll tapered bearing cup and cone set.
Cup cone bearing.
The cups are built into the shell of the hub.