工作原理，当压力油经固定的配油轴4的窗口进入缸体内柱塞的底部时，柱塞向外伸出，紧紧顶住定子的内壁，由于定子与缸体存在一偏心距。在柱塞与定子接触处，定子对柱塞的反作用力为 。力可分解为和 两个分力。当作用在柱塞底部的油液压力为p，柱塞直径为d，力和之间的夹角为X时，力对缸体产生一转矩，使缸体旋转。缸体再通过端面连接的传动轴向外输出转矩和转速。以析的一个柱塞产生转矩的情况，由于在压油区作用有好几个柱塞，在这些柱塞上所产生的转矩都使缸体旋转，并输出转矩。径向柱塞液压马达多用于低速大转矩的情况下。
折叠高速马达
额定转速高于500r/min的马达属于高速马达。高速马达的基本形式有齿轮式、叶片式和轴向柱塞式。它们主要特点是转速高，转动惯量小，便于启动、制动、调速和换向。

工作原理，当压力油经固定的配油轴4的窗口进入缸体内柱塞的底部时，柱塞向外伸出，紧紧顶住定子的内壁，由于定子与缸体存在一偏心距。在柱塞与定子接触处，定子对柱塞的反作用力为 。力可分解为和 两个分力。当作用在柱塞底部的油液压力为p，柱塞直径为d，力和之间的夹角为X时，力对缸体产生一转矩，使缸体旋转。缸体再通过端面连接的传动轴向外输出转矩和转速。以析的一个柱塞产生转矩的情况，由于在压油区作用有好几个柱塞，在这些柱塞上所产生的转矩都使缸体旋转，并输出转矩。径向柱塞液压马达多用于低速大转矩的情况下。E-A4VS0180DR/30R-PPB13N00
A4VS0250DRG/30R-PPB13N00
E-A4VS0180DR/30R-PPB13N00
A4VG125EP2DT1/32R-NAF02F011S
A4VG125HD1D2/32R-NTF02F691P
A4VG125HD1D2/32R-NSF02F02F021P
A4VG125HDDT1/32R-N2F02F011S
A4VG125EP2DT1/32R-NAF02F011S
E-A4VSO125DRPPB13NOO
A4VG56HD1D2-32R-NSF001S
A4VG90HD1D2-32R-NSF001S
A4VG125HD1D2-32R-NSF001S
A4VG125HDDT1/32R-N2F02F011S
A4VSO180DR/30R-PPB12NOOS1057
A4VG125HD1D2/32R-NTF02F691P
A4VG125HD1D2/32R-NSF02F02F021P
E-A4VSO125DRPPB13NOO
A4VS0250DR/22R-PPB13N00
A4VS0180DR/22R-PPB13N00
A4VSO40DR10RPPB13100N
A4VG125DA2D2/32L-PZE02E001D
A4VTG90HW/32R-NLD10F001S
A4VG125EP2ST1/32R-NAF02F011S
A4VTG90HW/32R-NLD10F001S
A4VS071DR/22R-PPB13NOO
A4VG125HD1D2-32R-NSF001S 
A10VSO18DFR1/31R-PPA12NOO
A10VSO28DFR1/31R-PPA12NOO
A10VSO45DFR1/31R-PPA12NOO
A10VSO71DFR1/31R-PPA12NOO
A10VSO100DFR1/31R-PPA12NOO
A10VSO140DFR1/31R-PPB12NOO

齿轮马达
齿轮马达在结构上为了适应正反转要求，进出油口相等、具有对称性、有单外泄油口，将轴承部分的泄漏油引出壳体外;为了减少启动摩擦力矩，采用滚动轴承;为了减少转矩脉动，齿轮液压马达的齿数比泵的齿数要多。
齿轮液压马达由干密封性差、容积效率较低、输入油压力不能过高、不能产生较大转矩。并且瞬间转速和转矩随着啮合点的位置变化而变化，因此齿轮液压马达仅适合于高速小转矩的场合。一般用于工程机械、农业机械以及对转矩均匀性要求不高的机械设备上。
MR2800I-N1N1N1N1N0500/58037
MR2800I-P1N1N1N1N0500/58152
MR1800H-F1N1N1S2NX0800/33970
MR1800H-P1T1N1N1N0800/33967
MR1800H-P1N1N1N1N0800/33964
MR1600H-X2N1N1S1NX0800/33963
MR1100G-F1N1N1S2NX1000/33960
MRE1400G-D1N1N1N1NX1000/33959
MR1100G-F1Q1N1N1N1000/33956
MR1100G-N1T1N1N1N1000/33946
MR1100P*/33944
MR250D-P1N1N1N1N
MR1800H-P1N1N1N1N
MR700F-N1N1N1N1N
MR600F-N1N1N1N1N
MRA3500I-P2N1N1N1N
MR1100G-N1N1N1N1N
MR2800I-N1N1N1N1N
MRE3100I-N1N1N1N1N
MR1100G-F1N1N1C1N
MR1100G-F1N1N1S1N
MRTF21500Q-F1N1N1N1N
MRTF21500Q-F1N1N1G1N
MRE5400L-N1N1N1N1N
MR2800I-N1B1V1C1N
MR190C-N1N1N1N1N
MR250D-P1N1N1C1N
MRE1400G-F1N1N1C1N
MRE8200M-F1N1N1N1N
MRE2100H-F1N1N1N1N
HMR4500L-F1N1N1N1N
MR160C-P1N1N1C1N
MR700F-P1N1N1N1N
MR4500L-F1Q1N1N1N
MR700F-F1N1N1S1N
MR4500L-F1Q2N1N1NX
MRC500BN
MRC800BN
MRTF21500Q-F1N1N1G1NX
MRE5400L-F1N1N1N1NX
MRD1100G527-F1N1N1N1NX
MR700F-F1N1N1N1N
MR1100G-F1N1N1N1N
MR73B-N1N1N1N1N
MR300D-N1N1N1N1N
MR600F-D1N1U1N1NX
MR300D-P1N1N1N1N
MRC3500P-D3
MR700F-N1N1N1S1N
MR450E-F1N1N1S1N
MR4500L-P1N1N1N1NX
MR4500L-N1N1N1N1NX
MR160C-P1N1N1N1N
MR450E-F1N1N1N1N
MRTE23000Q-F1N1N1G1NX
MRE2100H-P1Q1N1N1N
MRE800F-N1N1N1N1N
MRE800F-D1N1N1N1N
MR1100G-F1N1N1N1N1000/33943
MRE1400G-F1N1N1N1N1000/33942
MRE1400/1333/233898
MR2800IN1N1N1T1N0401
MR2800P*T/33835
MRE1400N*$B620N*/33818
MR4500/4503/33714
MR3600L-F1N1N1S2NX0301/33620
MR4500L-F1Q2N1N1N0501/33596
MR2800I-F1N1N1S2NX0401/33490
MRE1400P*/33454
MR1800P*T*/33442
MR350P*/33349
MR93B-P1N1N1N1N0000/33325

轴向柱塞泵除阀式配流外，其它形式原则上都可以作为液压马达用，即轴向柱塞泵和轴向柱塞马达是可逆的。轴向柱塞马达的工作原理为，配油盘和斜盘固定不动，马达轴与缸体相连接一起旋转。当压力油经配油盘的窗口进入缸体的柱塞孔时，柱塞在压力油作用下外伸，紧贴斜盘，斜盘对柱塞产生一个法向反力p，此力可分解为轴向分力及和垂直分力Q。Q与柱塞上液压力相平衡，而Q则使柱塞对缸体中心产生一个转矩，带动马达轴逆时针方向旋转。轴向柱塞马达产生的瞬时总转矩是脉动的。若改变马达压力油输入方向，则马达轴按顺时针方向旋转。斜盘倾角a的改变、即排量的变化，不仅影响马达的转矩，而且影响它的转速和转向。斜盘倾角越大，产生转矩越大，转速越低。轴向柱塞泵 E-A4VSO250EO2/30R-VPB25N00-SO3
轴向柱塞泵 E-A4VSO250EO2/30R-VPB25N00-SO3 
柱塞泵 A4VSO180DR/30R-FPB13N00
恒压变量泵 E-A4VS0125DR/22R-VPB13N00 
柱塞泵 A4VSO180DR/30R-FPB13N00 
柱塞泵 A4VS0180LR2G/30R-PPB13NOO
柱塞泵 A4VSO250LR2D/30R-PPB13NOO 
柱塞泵 A4VSO250DR/30R-PPB13NOO
泵 A4VG56EZ2DM1/32-NSC02F003F
柱塞泵 A4VS0250DR/30RPPB13N00
阀柱塞泵 A4VTG71HW/32R-NLD10F001S
柱塞泵 A4VSG750HD/22R-PPH10NOO 
轴向柱塞泵 A4VS07IDR/3XR 
轴向柱塞泵 A4VS0125DR/3XR 
柱塞泵 A4VG90EP2DT1/32R-NAF02F00
柱塞泵 A4VSO-250E02/30R-PPB13N00 
柱塞泵 A4VSO-250DR/30R-PPB13N00
液压马达 A4VG40EP4DMT1/32L-NSC02F015PH 
柱塞泵 A4VG71DWDMT2/23L-NZF02F041D 
泵 A4VG250HD1D1/32LNZD10F001S 
柱塞泵 A4VS0125DR30R-PPB13N00 
柱塞泵 A4VG125HD1D2/32R-NTF02F691P 
柱塞泵 A4VG125HD1D2/32R-NSF02F02F021P
串泵 A4VG125HDMT1-32R-NSF02F691S-
柱塞泵（二串泵） A4VG125EP2/32+A10V028DR/31 
A4VS0125DR/30R-PPB13N00
A4VS0125LR2N/22L-PZB13A00
A4VG125HDMT1/32R-NSFO21S-S
A4VTG90HW/32R
A4VG125HD1D2/32R-NSF001S
A4VSO180DR/3XR-PPB13N00
A4VSO125DR/3DR-PPB13NOO
A4VS0125LR2N/22L-PZB13A00
A4VTG90HW/3IR-NLD10F001S
A4VG56EZ1DMV32R-PSC02F023E-S
A4VG90EP2DT1/32R-NAF02F001F
A4VG90EP2DT1/32L-NAFO2F001D
E-A4VS0250DR/30RPPB13N00
A4VS0125DR/22R-PPB13N00
A4VS0180DR/30R-PPB13N00
A4VG125HDDT132L-PZF02F001D
EA4VS0125DFR/30R-PPB13N00
A4VS040DR-PPB13N00
A4VS0180DR/22R-PPB13N00
A4VSO40EO/31L-P2BBN00
A4VSO180EO/30L-P2B13N00
A4VS040DR/10X-PPB13N00
AE-A4VS0250E01/30R-PPBN00-S036
A4V125HW10R0C101A-K
AHA4VS0250HD1GB/30R-PZB13K35-S
AHA4VS0250LR3G/30R-PZB13K35-S0
AHA4VS0250LR3G/30R-PZB13N00-S0
A4VG180HDMT1/32R-NSD02F021SG-S
A4VG180EP2DT1/32R-NTD02F021SH
AHA4VS0250HD1GB/30R-PZB13K35-S
AHA4VS0250LR3G/30R-PZB13K35-S0
AHA4VS0250LR3G/30R-PZB13N00-S0
A4VG250HD1D1/32LNZD10F001S
A4VG125HDDT1/32L-PZF02F001D
A4V125HW10R0C101A-K