Method to fabricate a tolerance ring with edge rounding from opposite major faces

A method of fabricating a tolerance ring, comprising:

• stamping a sheet metal section from a strip of sheet metal, the strip of sheet metal having first and second edges that are parallel to a strip axis, the strip of sheet metal having a first major face that is opposite a second major face;
• rounding the first edge from the first major face and from the second major face by coining;
• forming a plurality of bumps protruding from the first major face;
• and
• bending the sheet metal section into a substantially cylindrical shape having a central axis that is normal to the strip axis.

A method of fabricating a tolerance ring, comprising:

• stamping a sheet metal section from a strip of sheet metal, the strip of sheet metal having first and second edges that are parallel to a strip axis, the strip of sheet metal having a first major face that is opposite a second major face;
• rounding the first edge from the first major face and from the second major face by skiving prior to the stamping;
• forming a plurality of protrusions from the first major face;
• and
• bending the sheet metal section into a substantially cylindrical shape having a central axis that is normal to the strip axis.