Rexroth A2FE107/61W-VZL181 Hydraulic Pump

Rexroth A2FE107/61W-VZL181 Hydraulic Pump are essential for providing fluid power in most industrial applications. They are also used in a wide range of other machines and devices, such as agricultural tractors, irrigation systems and even cars. To ensure the long-term reliability of these products, Rexroth offers an extensive range of hydraulic pump spares that include replacement and repair parts.

Contents hide

Features

Dimensions

Technical data

Hydraulic fluids

Operating pressure range

Rexroth A2FE107/61W-VZL181 Hydraulic Pump service mar

Features

3 pressure ranges to fit to different customer requirements and applications
Space-saving construction due to recessed mounting flange
Very high power density
Very high total efficiency
High starting efficiency
Optional with integrated flushing valve
Robust 40° bent-axis technology
Bent-axis design

Dimensions

SAE working ports at bottom

Dimensions

¹⁾To shaft collar

²⁾The O-ring is not included in the delivery contents.

Version	Size	D1	D2	D3	D4	D7	D8	D9	D10	D11	D12	D13	D14	D15	D16	D17	D18	D19	D20	D25	D26	D28	D29	D31	D33	D40	D41	D42	D46	D47	O-ring
Version	Size	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm
A2FEN	28	125		172.7	122	160	20	10	32	30	86	148.7	125	148.7		30	126.2	121.5	93.2	150	145		13.5		147	23.8	50.8	19	75	25
	32	125		172.7	122	160	20	10	32	30	86	148.7	125	148.7		30	126.2	121.5	93.2	150	145		13.5		147	23.8	50.8	19	75	25
	37	125		172.7	122	160	20	10	32	30	86	148.7	125	148.7		30	126.2	121.5	93.2	150	145		13.5		147	23.8	50.8	19	75	25
	45	100		157	100		15	8	25	23	59	130	125	148.7		30	126.2	121.5	93.2	150	145		13.5		147	23.8	50.8	19	75	25
	56	160	118	112.4	122	235	18		92.3	90	86		125	88.4	10	30	65.9	121.5	32.9			200	18	5.2	147	23.8	50.8	19	75	20	Ø150 × 4
	63	160	118	112.4	122	235	18		92.3	90	86		125	88.4	10	30	65.9	121.5	32.9			200	18	5.2	147	23.8	50.8	19	75	20	Ø150 × 4
	80	160	118	112.4	122	235	18		92.3	90	86		125	88.4	10	30	65.9	121.5	32.9			200	18	5.2	147	23.8	50.8	19	75	20	Ø150 × 4
	90	190	140.3	120.5	142	260	20		110	106	101.5		145	93.5	10	30	67.5	127	33			224	22	5.2	165	27.8	57.2	25	84	25	Ø182 × 4
	107	190	140.3	120.5	142	260	20		110	106	101.5		145	93.5	10	30	67.5	127	33			224	22	5.2	165	27.8	57.2	25	84	25	Ø182 × 4
A2FEM	23	125		172.7	122	160	20	10	32	30	86	148.7	125	148.7		30	126.2	121.5	93.2	150	145		13.5		147	23.8	50.8	19	75	25
	28	125		172.7	122	160	20	10	32	30	86	148.7	125	148.7		30	126.2	121.5	93.2	150	145		13.5		147	23.8	50.8	19	75	25
	32	125		172.7	122	160	20	10	32	30	86	148.7	125	148.7		30	126.2	121.5	93.2	150	145		13.5		147	23.8	50.8	19	75	25
	45	160	118	112.4	122	235	18		92.3	90	86		125	88.4	10	30	65.9	121.5	32.9			200	18	5.2	147	23.8	50.8	19	75	20	Ø150 × 4
	56	160	118	112.4	122	235	18		92.3	90	86		125	88.4	10	30	65.9	121.5	32.9			200	18	5.2	147	23.8	50.8	19	75	20	Ø150 × 4
	63	160	118	112.4	122	235	18		92.3	90	86		125	88.4	10	30	65.9	121.5	32.9			200	18	5.2	147	23.8	50.8	19	75	20	Ø150 × 4
	80	190	140.3	120.5	142	260	20		110	106	101.5		145	93.5	10	30	67.5	127	33			224	22	5.2	165	27.8	57.2	25	84	25	Ø182 × 4
	90	190	140.3	120.5	142	260	20		110	106	101.5		145	93.5	10	30	67.5	127	33			224	22	5.2	165	27.8	57.2	25	84	25	Ø182 × 4
	107	140		198.5	142	180	20	10	32	29	101.5	171.5	145	171.5		30	145.5	127	111	165	160		13.5		165	27.8	57.2	25	84	25
	125	140		198.5	142	180	20	10	32	29	101.5	171.5	145	171.5		30	145.5	127	111	165	160		13.5		165	27.8	57.2	25	84	25
	160	200	160	175	157	286	20		122.8	119	120		150	126.7			88.2	131.5	47.2			250	22	5.2	194	31.8	66.7	32	99	30
	180	200	160	175	157	286	20		122.8	119	120		150	126.7			88.2	131.5	47.2			250	22	5.2	194	31.8	66.7	32	99	30
A2FEH	45	160	118	112.4	122	235	18		92.3	90	86		125	88.4	10	30	65.9	121.5	32.9			200	18	5.2	147	23.8	50.8	19	75	20	Ø150 × 4
	56	160	118	112.4	122	235	18		92.3	90	86		125	88.4	10	30	65.9	121.5	32.9			200	18	5.2	147	23.8	50.8	19	75	20	Ø150 × 4
	63	160	118	112.4	122	235	18		92.3	90	86		125	88.4	10	30	65.9	121.5	32.9			200	18	5.2	147	23.8	50.8	19	75	20	Ø150 × 4
	80	190	140.3	120.5	142	260	20		110	106	101.5		145	93.5	10	30	67.5	127	33			224	22	5.2	165	27.8	57.2	25	84	25	Ø182 × 4
	90	190	140.3	120.5	142	260	20		110	106	101.5		145	93.5	10	30	67.5	127	33			224	22	5.2	165	27.8	57.2	25	84	25	Ø182 × 4
	107	140		198.5	142	180	20	10	32	29	101.5	171.5	145	171.5		30	145.5	127	111	165	160		13.5		165	27.8	57.2	25	84	25
	125	140		198.5	142	180	20	10	32	29	101.5	171.5	145	171.5		30	145.5	127	111	165	160		13.5		165	27.8	57.2	25	84	25

Dimensions

Overview of available drive shafts

A2FEN

Size			56		63	80	90	107
Drive shafts		Code	Z6	Z8	Z8	Z8	Z9	Z9

A2FEM

Size			45	56		63	80		90
Drive shafts		Code	Z6	Z6	Z8	Z8	Z8	Z9	Z9

A2FEH

Size			45	56	63	80		90
Drive shafts		Code	Z6	Z8	Z8	Z8	Z9	Z9

Dimensions

Technical data

Size				28	32	37	45	56	63	80	90	107	23	28	32	45	56	63	80	90	107	125	160	180	45	56	63	80	90	107	125
Version				A2FEN									A2FEM												A2FEH
Displacement geometric, per revolution		V_g	cm³	28.1	32	36.8	44.2	56.6	63	81.7	90.5	108.8	22.9	28.1	32	44.9	56.6	63	79.8	90.5	106.7	125	160.4	180	44.9	56.6	63	79.8	90.5	106.7	125
Nominal pressure		p_nom	bar	300	300	300	300	300	300	300	300	300	400	400	400	400	400	400	400	400	400	400	400	400	450	450	450	450	450	450	450
Maximum pressure		p_max	bar	350	350	350	350	350	350	350	350	350	450	450	450	450	450	450	450	450	450	450	450	450	500	500	500	500	500	500	500
Maximum speed		n_nom ¹⁾	rpm	4725	4725	4200	4200	3750	3750	3375	3375	3000	6300	6300	6300	5000	5000	5000	4500	4500	4000	4000	3600	3600	5000	5000	5000	4500	4500	4000	4000
Maximum speed		n_max ²⁾	rpm	5175	5175	4650	4650	4125	4125	3700	3700	3300	6900	6900	6900	5500	5500	5500	5000	5000	4400	4400	4000	4000	5500	5500	5500	5000	5000	4400	4400
Inlet flow	at n_nom	q_V	l/min	133	151	155	186	212	236	276	305	326	144	177	202	225	283	315	359	407	427	500	577	648	225	283	315	359	407	427	500
Torque ³⁾	at p_nom	M	Nm	134	153	176	211	270	301	390	432	519	146	179	204	286	360	401	508	576	679	796	1021	1146	322	405	451	571	648	764	895
Rotary stiffness		c	kNm/rad	2.2	2.46	4.29	4.84	6.97	8.11	8.47	9.85	10.96	1.76	2.2	2.46	4.65	6.97	8.11	9.1	9.85	12.49	13.65	21.32	23.04	4.65	6.97	8.11	9.1	9.85	12.49	13.65
Moment of inertia for rotary group		J_TW	kg·m²	0.001	0.0011	0.0012	0.0012	0.0034	0.0035	0.0037	0.0058	0.0061	0.001	0.001	0.0011	0.0033	0.0034	0.0035	0.0056	0.0058	0.0088	0.0091	0.0248	0.0254	0.0033	0.0034	0.0035	0.0056	0.0058	0.0088	0.0091
Case volume		V	l	0.3	0.3	0.3	0.3	0.6	0.6	0.6	0.65	0.65	0.3	0.3	0.3	0.6	0.6	0.6	0.65	0.65	1.1	1.1	0.8	0.8	0.6	0.6	0.6	0.65	0.65	1.1	1.1
Weight (approx.)		m	kg	10.7	10.7	10.7	10.7	17	17	17	23	23	10.7	10.7	10.7	17	17	17	23	23	32.8	32.8	41	41	17	17	17	23	23	32.8	32.8

¹⁾	These values are valid at: – for the optimum viscosity range from v_opt = 36 to 16 mm²/s – with hydraulic fluid based on mineral oils
²⁾	Intermittent maximum speed: overspeed for unload and overhauling processes, t < 5 s and Δp < 150 bar
³⁾	Torque without radial force, with radial force see table “Permissible radial and axial forces of the drive shafts”

Note

The values in the table are theoretical values, without consideration of efficiencies and tolerances. The values are rounded.
Exceeding the maximum or falling below the minimum permissible values can lead to a loss of function, a reduction in operational service life or total destruction of the axial piston unit. Other permissible limit values, such as speed variation, reduced angular acceleration as a function of the frequency and the permissible angular acceleration at start (lower than the maximum angular acceleration) can be found in data sheet 90261.

Hydraulic fluids

The axial piston unit is designed for operation with mineral oil HLP according to DIN 51524. Application instructions and requirements for hydraulic fluids should be taken from the following data sheets before the start of project planning:

90220: Hydraulic fluids based on mineral oils and related hydrocarbons
90221: Environmentally acceptable hydraulic fluids

For operation with HF fluids please consult us.

Viscosity and temperature of hydraulic fluids

	Viscosity	Shaft seal	Temperature¹⁾	Comment
Cold start	ν_max ≤ 1600 mm²/s	NBR²⁾	ϑ_St ≥ -40 °C	t ≤ 3 min, without load (p ≤ 50 bar), n ≤ 1000 rpm, permissible temperature difference between axial piston unit and hydraulic fluid max. 25 K
Cold start	ν_max ≤ 1600 mm²/s	FKM	ϑ_St ≥ -25 °C
Warm-up phase	ν = 400 … 1600 mm²/s			t ≤ 15 min, p ≤ 0.7 • p_nom and n ≤ 0.5 • n_nom
Continuous operation	ν = 10 … 400 mm²/s³⁾	NBR²⁾	ϑ ≤ +78 °C	measured at port T
	ν = 10 … 400 mm²/s³⁾	FKM	ϑ ≤ +103 °C	measured at port T
	ν_opt = 16 … 36 mm²/s			range of optimum operating viscosity and efficiency
Short-term operation	ν_min = 7 … 10 mm²/s	NBR²⁾	ϑ ≤ +78 °C	t ≤ 3 min, p ≤ 0.3 • p_nom measured at port T

¹⁾	If the specified temperatures cannot be maintained due to extreme operating parameters, please contact us.
²⁾	Special version, please contact us.
³⁾	Equates e.g. with the VG 46 a temperature range of +5 °C to +85 °C (see selection diagram)

Note

To reduce high temperature of the hydraulic fluid in the axial piston unit we recommend the use of a flushing and boost pressure valve (see chapter Extended functions and versions).

Selection of hydraulic fluid

Bosch Rexroth evaluates hydraulic fluids on the basis of the Fluid Rating according to the technical data sheet 90235.

Hydraulic fluids with positive evaluation in the Fluid Rating are provided in the following technical data sheet:

90245: Bosch Rexroth Fluid Rating List for Rexroth hydraulic components (pumps and motors)

The hydraulic fluid should be selected so that the operating viscosity in the operating temperature range is within the optimum range (ν_opt; see selection diagram).

Filtration of the hydraulic fluid

Finer filtration improves the cleanliness level of the hydraulic fluid, which increases the service life of the axial piston unit.

A cleanliness level of at least 20/18/15 is to be maintained according to ISO 4406.

At a hydraulic fluid viscosity of less than 10 mm²/s (e.g. due to high temperatures in short-term operation) at the drain port, a cleanliness level of at least 19/17/14 according to ISO 4406 is required.

For example, the viscosity is 10 mm²/s at:

HLP 32 a temperature of 73°C

HLP 46 a temperature of 85°C

Operating pressure range

Pressure at working port A or B (high-pressure side)			Definition
Nominal pressure	p_nom	see table of values	The nominal pressure corresponds to the maximum design pressure.
Maximum pressure	p_max	see table of values	The maximum pressure corresponds to the maximum operating pressure within the single operating period. The sum of the single operating periods must not exceed the total operating period.
Single operating period		10 s
Total operating period		300 h
Minimum pressure	p_HP min	25 bar	Minimum pressure on high-pressure side (port A or B) required to prevent damage to the axial piston unit.
Minimum pressure at inlet (pump operating mode)	p_E min	see diagram	To prevent damage to the axial piston motor in pump mode (change of high-pressure side with unchanged direction of rotation, e.g. when braking),a minimum pressure must be guaranteed at the working port (inlet). The minimum pressure depends on the rotational speed and displacement of the axial piston unit.
Total pressure	p_Su	700 bar	The summation pressure is the sum of the pressures at both work ports (A and B).
Rate of pressure change			Definition
with integrated pressure relief valve	R_A max	9000 bar/s	Maximum permissible rate of pressure build-up and reduction during a pressure change over the entire pressure range.
without pressure relief valve	R_A max	16000 bar/s
Case pressure at port T			Definition
Continuous differential pressure	Δp_T _cont	2 bar	Maximum averaged differential pressure at the shaft seal (case to ambient pressure)
Pressure peaks	p_T _peak	10 bar	t < 0.1 s

Note

Working pressure range valid when using hydraulic fluids based on mineral oils. Values for other hydraulic fluids, please contact us.

Minimum pressure at inlet (pump operating mode)

This diagram is only valid for the optimum viscosity range of v_opt = 16 to 36 mm²/s.

If the above mentioned conditions cannot be ensured, please contact us.

Pressure definition

¹⁾	Total operating period = t₁ + t₂ + … + t_n

Rate of pressure change

Note

The service life of the shaft seal is influenced by the speed of the axial piston unit and the case pressure.

The service life decreases with an increase of the mean differential pressure between the case and the ambient pressure and with a higher frequency of pressure spikes.

The case pressure must be equal to or higher than the ambient pressure.