Our BDU transmissions are available in three sizes, with displacement between 10 cm3 and 21 cm3 [0.37 in3 and 1.28 in3]. They contain variable-displacement pumps and fixed-displacement motors, both of which feature axial piston designs and spherical-nosed pistons.

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BDU transmissions FBA

<h2>Specifications</h2><div class="OutlineElement Ltr SCXW205495790 BCX0"><div class="TableContainer Ltr SCXW205495790 BCX0"><table border="1" data-tablestyle="MsoNormalTable" data-tablelook="1184" aria-rowcount="3" class="Table Ltr TableWordWrap SCXW205495790 BCX0"><tbody class="SCXW205495790 BCX0"><tr role="row" aria-rowindex="1" class="TableRow SCXW205495790 BCX0"><td role="rowheader" data-celllook="4369" class="TableCellBorderSelection FirstRow FirstCol SCXW205495790 BCX0"><div class="TableCellContent SCXW205495790 BCX0"><div class="OutlineElement Ltr SCXW205495790 BCX0">Model</div></div></td><td role="columnheader" data-celllook="4369" class="TableCellBorderSelection FirstRow SCXW205495790 BCX0"><div class="TableCellContent SCXW205495790 BCX0"><div class="OutlineElement Ltr SCXW205495790 BCX0">Displacement &nbsp;</div><div class="OutlineElement Ltr SCXW205495790 BCX0">cm3[in3] &nbsp;</div></div></td><td role="columnheader" data-celllook="4369" class="TableCellBorderSelection FirstRow SCXW205495790 BCX0"><div class="TableCellContent SCXW205495790 BCX0"><div class="OutlineElement Ltr SCXW205495790 BCX0">Max. working pressure&nbsp; &nbsp;</div><div class="OutlineElement Ltr SCXW205495790 BCX0">bar [psi]&nbsp;</div></div></td><td role="columnheader" data-celllook="4369" class="TableCellBorderSelection FirstRow SCXW205495790 BCX0"><div class="TableCellContent SCXW205495790 BCX0"><div class="OutlineElement Ltr SCXW205495790 BCX0">Rated&nbsp;input&nbsp;speed &nbsp;</div><div class="OutlineElement Ltr SCXW205495790 BCX0">rpm&nbsp;</div></div></td><td role="columnheader" data-celllook="4369" class="TableCellBorderSelection FirstRow LastCol SCXW205495790 BCX0"><div class="TableCellContent SCXW205495790 BCX0"><div class="OutlineElement Ltr SCXW205495790 BCX0">Max. output torque (theoretical)</div><div class="OutlineElement Ltr SCXW205495790 BCX0">Nm [lbf-in]</div></div></td></tr><tr><td>BDU-10S</td><td>10 [0.61]</td><td>150 [2,185]</td><td>3,000</td><td>23.4 [208]</td></tr><tr role="row" aria-rowindex="3" class="TableRow SCXW205495790 BCX0"><td role="rowheader" data-celllook="4369" class="TableCellBorderSelection FirstCol LastRow SCXW205495790 BCX0">BDU-10L</td><td data-celllook="4369" class="TableCellBorderSelection LastRow SCXW205495790 BCX0">10 [0.61]</td><td data-celllook="4369" class="TableCellBorderSelection LastRow SCXW205495790 BCX0">150 [2,185]</td><td data-celllook="4369" class="TableCellBorderSelection LastRow SCXW205495790 BCX0">3,000</td><td data-celllook="4369" class="TableCellBorderSelection LastCol LastRow SCXW205495790 BCX0">23.4 [208]</td></tr><tr><td>BDU-21L</td><td>21 [1.28]</td><td>150 [2,185]</td><td>3,600</td><td>49.2 [436]</td></tr><tr><td>BDU-21H</td><td>21 [1.28]</td><td>210 [3,059]</td><td>3,600</td><td>72.1 [639]</td></tr></tbody></table></div></div><div class="OutlineElement Ltr SCXW205495790 BCX0"></div>For more information, see&nbsp;<a href="https://assets.danfoss.com/documents/latest/216687/BC152886484098en-000208.pdf#page=11" target="_blank" rel="noopener">Technical Information</a>.&nbsp;

ps-BDU transmissions-CFH_5012656

BDU transmissions

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BDU transmissions

Features and benefits

Applications

Specifications

Model	Displacement cm³[in³]	Max. working pressure bar [psi]	Rated input speed rpm	Max. output torque (theoretical) Nm [lb_f-in]
BDU-10S	10 [0.61]	150 [2,185]	3,000	23.4 [208]
BDU-10L	10 [0.61]	150 [2,185]	3,000	23.4 [208]
BDU-21L	21 [1.28]	150 [2,185]	3,600	49.2 [436]
BDU-21H	21 [1.28]	210 [3,059]	3,600	72.1 [639]