耐用性好
551 系列足够坚固，能够抵御恶劣的环境。
性能高
此系列支持可变速度和扭矩，并能即时起动和停止，而不会产生过热。
<table>
<thead>
<tr>
<th>Model</th>
<th>Max. Power (hp)</th>
<th>Max. Power (kw)</th>
<th>Reversible</th>
<th>Torque Stall (ft-lb)</th>
<th>Torque Stall (Nm)</th>
<th>Free Speed (rpm)</th>
<th>Torque Output @ Max. H.P. (ft-lb)</th>
<th>Torque Output @ Max. H.P. (Nm)</th>
<th>Speed at Max. Power (rpm)</th>
<th>Starting Torque (ft-lb)</th>
<th>Starting Torque (Nm)</th>
<th>Air Consumption at Max. Power (scfm)</th>
<th>Air Consumption at Max. Power (m^3/m)</th>
<th>Weight (lb)</th>
<th>Weight (kg)</th>
<th>Length (in)</th>
<th>Length (mm)</th>
<th>Diameter/Width (in)</th>
<th>Diameter/Width (mm)</th>
<th>In Line Motor</th>
</tr>
</thead>
<tbody>
<tr>
<td>551S051-W/RC</td>
<td>5.6</td>
<td>4.18</td>
<td>Yes</td>
<td>885</td>
<td>1200</td>
<td>77</td>
<td>442.5</td>
<td>599.95</td>
<td>59</td>
<td>650</td>
<td>881</td>
<td>160</td>
<td>4.53</td>
<td>93</td>
<td>42.2</td>
<td>19.06</td>
<td>484.2</td>
<td>15</td>
<td>381</td>
<td>Yes</td>
</tr>
<tr>
<td>551SM51-W/RC</td>
<td>5.6</td>
<td>4.18</td>
<td>Yes</td>
<td>545</td>
<td>739</td>
<td>120</td>
<td>272.5</td>
<td>369.46</td>
<td>95</td>
<td>400</td>
<td>542</td>
<td>160</td>
<td>4.53</td>
<td>93</td>
<td>42.2</td>
<td>19.06</td>
<td>484.2</td>
<td>15</td>
<td>381</td>
<td>Yes</td>
</tr>
</tbody>
</table>
