BOTTOM BRACKET BEARING 5/16X10.

  1. Use: Crank-American

    • The bottom bracket bearing is designed for use in a crank with an American-style bottom bracket. American bottom brackets are a type of threaded bottom bracket commonly used on BMX bikes and some older American-made bicycles.

  2. Fits: 1/Piece

    • Indicates that the bearing is suitable for use in a one-piece crankset. One-piece cranks are often found on BMX bikes and some entry-level or vintage bicycles. The "1/Piece" specification means it's designed for this specific crank type.

  3. Ball Size: 5/16

    • Specifies the size of the balls in the bearing. In this case, the ball size is 5/16 of an inch. This measurement is crucial for ensuring compatibility with the specific components it interacts with, such as the races in the bottom bracket.

  4. Ball Qty: 12

    • Indicates the quantity of balls in the bearing. In this case, there are 12 balls. The number of balls in a bearing can affect its load-carrying capacity and overall durability. A higher ball count is often associated with increased load capacity.