輪徑 Wheel Diameter (inches) | 輪寬 Wheel Width (inches) | 載重 Load Capacity (lbs) | 軸承類(lèi)型 Bearing type | 軸寬 hub length (inches) | 軸徑 plain bore size (inches) | 輪子代號(hào) wheel # | 4 | 2 | 700 | 滾針軸承 Roller bearing | 2 3/16 | 1 3/16 | MN420W
| 5 | 2 | 800 | 滾針軸承 Roller bearing | 2 3/16 | 1 3/16 | MN520W | 6 | 2 | 900 | 滾針軸承 Roller bearing | 2 3/16 | 1 3/16 | MN620W | 8 | 2 | 1100 | 滾針軸承 Roller bearing | 2 3/16 | 1 3/16 | MN820W |
|