Wheel Technical Information
Bell and Nose Halves
Douglas Wheel halves come in two different shapes, commonly referred to as a “BELL” and a “NOSE”.
Each completed wheel must contain at least one NOSE half for ease of tire mounting.
Understanding Part Numbers
Following each part number will be a description that might look like this:
8X8 3B+5N 4/110 .125 10MM
| Part Number | Explanation |
| 8X8 3B+5N 4/110 .125 10MM | This 8 refers to the wheel diameter, measured from the tire bead seat. |
| 8X8 3B+5N 4/110 .125 10MM | This 8 refers to the wheel width, measured from the inside bead to inside bead. |
| 8X8 3B+5N 4/110 .125 10MM | This 3B refers to the width of the inside half of the wheel, in this case in a BELL shape. |
| 8X8 3B+5N 4/110 .125 10MM | This 5N refers to the width of the outside half of the wheel, in this case in a NOSE shape. |
| 8X8 3B+5N 4/110 .125 10MM | This 4/110 refers to the bolt pattern. It has 4 bolt holes, equally spaced around a 110 millimeter diameter circle. |
| 8X8 3B+5N 4/110 .125 10MM | This .125 refers to the thickness of the material used in the wheels, in this case .125 in. thick. |
| 8X8 3B+5N 4/110 .125 10MM | This 10MM refers to the size of the bolt hole, in this case 10 millimeters. |
