This deep groove ball bearing carries radial and moderate axial loads through a single row of balls running in a raceway with a bore of 35.0 mm, an outside diameter of 80.0 mm, and a width of 21.0 mm. The design uses steel sheet metal shields on both sides (bore type Z) and a steel sheet metal cage (JN), giving a net mass of 0.465 kg. It runs at a limiting speed of 10500 1/min and a reference speed of 9900 1/min, with the radial internal clearance set to C3 (Group 3), wider than standard. The C3 clearance suits applications where thermal expansion or a press fit on the shaft would otherwise tighten the running clearance too much, keeping the bearing free-running under such conditions. The steel shields restrict the ingress of larger contaminants while allowing the bearing to be lubricated with grease as required, without providing a sealed barrier against fine dust or moisture. Dimensional and constructional equivalents are SKF 6307-2Z/C3, NSK 6307ZZC3, and NTN 6307ZZC3.