BOSCH REXROTH
R902269716

$5,876.00 USD

BOSCH REXROTH
Material:R902269716
Model:A2FEM056/70NWVP2Z611C0J-0

Due to extremely high demand, please call 920-337-0234 for availability

***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Bosch Rexroth directly.***
The Bosch Rexroth A2FEM056/70NWVP2Z611C0J-0 (R902269716) is a compact high-pressure motor renowned for its robust bent-axis technology, tailored to integrate seamlessly into mechanical gearboxes. This motor is designed to deliver very high power density and total efficiency, which makes it an ideal solution for applications requiring a reliable and efficient hydraulic power source. Its size is optimized for space-saving due to the recessed mounting flange, making it suitable for environments where space is at a premium. With nominal pressure capabilities up to 400 bar and maximum pressure reaching up to 450 bar, the A2FEM056/70NWVP2Z611C0J-0 caters to a wide range of customer requirements and applications. The motor's high starting efficiency is particularly beneficial in applications that demand quick and responsive starts. Additionally, the option of an integrated flushing valve extends the potential uses of this motor by allowing for better heat dissipation and contamination control within hydraulic systems. The bent-axis design not only contributes to the motor's compactness but also enhances its durability, ensuring that it can withstand the rigors of demanding operational conditions. Whether used in open or closed circuits, this model from Bosch Rexroth stands out as a high-performance component in hydraulic systems requiring precise control and longevity.

technical illustration-R902269716-3 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

1)	Only available for A2FEN
2)	Not available for A2FEH
3)	Not available for A2FEN

1)	Not available for A2FEH

Table of values

Size				56	63	80	90	107	45	56	63	80	90	45	56	63	80	90
Version				A2FEN					A2FEM					A2FEH
Displacement geometric, per revolution		Vg	cm³	56.6	63	81.7	90.5	108.8	44.9	56.6	63	79.8	90.5	44.9	56.6	63	79.8	90.5
Nominal pressure		pnom	bar	300	300	300	300	300	400	400	400	400	400	450	450	450	450	450
Maximum pressure		pmax	bar	350	350	350	350	350	450	450	450	450	450	500	500	500	500	500
Maximum speed		nnom 1)	rpm	3750	3750	3375	3375	3000	5000	5000	5000	4500	4500	5000	5000	5000	4500	4500
Maximum speed		nmax 2)	rpm	4125	4125	3700	3700	3300	5500	5500	5500	5000	5000	5500	5500	5500	5000	5000
Inlet flow	at nnom	qV	l/min	212	236	276	305	326	225	283	315	359	407	225	283	315	359	407
Torque 3)	at pnom	M	Nm	270	301	390	432	519	286	360	401	508	576	322	405	451	571	648
Rotary stiffness		c	kNm/rad	6.83	8.09	7.94	9.84	10.9	4.52	6.83	8.09	9.09	9.84	4.52	6.83	8.09	9.09	9.84
Moment of inertia for rotary group		JTW	kg·m²	0.0032	0.0032	0.0034	0.0054	0.0061	0.0032	0.0032	0.0032	0.0058	0.0054	0.0032	0.0032	0.0032	0.0058	0.0054
Maximum angular acceleration		ɑ	rad/s²	10000	12200	19800	4500	6000	5400	9000	11100	4500	4500	5000	8550	10500	4500	4500
Case volume		V	l	0.6	0.6	0.6	0.65	0.65	0.6	0.6	0.6	0.65	0.65	0.6	0.6	0.6	0.65	0.65
Weight (approx.)		m	kg	17	17	17	23	23	17	17	17	23	23	17	17	17	23	23

1)	These values are valid at: - for the optimum viscosity range from vopt = 36 to 16 mm2/s - with hydraulic fluid based on mineral oils
2)	Intermittent maximum speed: overspeed for unload and overhauling processest, 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.

Speed range

No limit to minimum speed nmin. If uniformity of motion is required, speed nmin must not be less than 50 rpm.

Determining the operating characteristics
Inlet flow		[l/min]
Rotational speed		[rpm]
Torque		[Nm]
Power		[kW]

Key
Vg	Displacement per revolution [cm3]
Δp	Differential pressure [bar]
n	Rotational speed [rpm]
ηv	Volumetric efficiency
ηhm	Hydraulic-mechanical efficiency
ηt	Total efficiency (ηt = ηv • ηhm)

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

90222: Fire-resistant, water-free hydraulic fluids (HFDR, HFDU)

90223: Fire-resistant, water-containing hydraulic fluids (HFAE, HFAS, HFB, HFC)

The axial piston unit is not suitable for operation with HFA hydraulic fluid.

Viscosity and temperature of hydraulic fluids

	Viscosity	Shaft seal	Temperature1)	Comment
Cold start	νmax ≤ 1600 mm²/s	NBR2)	ϑSt ≥ -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	νmax ≤ 1600 mm²/s	FKM	ϑSt ≥ -25 °C
Warm-up phase	ν = 400 … 1600 mm²/s			t ≤ 15 min, p ≤ 0.7 • pnom and n ≤ 0.5 • nnom
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
	νopt = 16 … 36 mm²/s			range of optimum operating viscosity and efficiency
Short-term operation	νmin = 7 … 10 mm²/s	NBR2)	ϑ ≤ +78 °C	t ≤ 3 min, p ≤ 0.3 • pnom measured at port T
Short-term operation	νmin = 7 … 10 mm²/s	FKM	ϑ ≤ +103 °C	t ≤ 3 min, p ≤ 0.3 • pnom 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).

Explanatory note regarding the selection of hydraulic fluid

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

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	pnom	see table of values	The nominal pressure corresponds to the maximum design pressure.
Maximum pressure	pmax	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	pHP 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)	pE 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	pSu	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	RA 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	RA max	16000 bar/s
Case pressure at port T			Definition
Continuous differential pressure	ΔpT cont	2 bar	Maximum averaged differential pressure at the shaft seal (case to ambient)
Pressure peaks	pT 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 vopt = 16 to 36 mm2/s

Please contact us if these conditions cannot be satisfied.

Pressure definition

1)	Total operating period = t1 + t2 + ... + tn

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.

Direction of flow

Direction of rotation, viewed on drive shaft
clockwise	counter-clockwise
A to B	B to A

Permissible radial and axial forces of the drive shaft

Size			56		63	80	90	107	45	56		63	80		90	45	56	63	80		90
Version			A2FEN						A2FEM							A2FEH
Drive shaft	Code		Z6	Z8	Z8	Z8	Z9	Z9	Z6	Z6	Z8	Z8	Z8	Z9	Z9	Z6	Z8	Z8	Z8	Z9	Z9
Drive shaft	⌀	mm	30	35	35	35	40	40	30	30	35	35	35	40	40	30	35	35	35	40	40
Maximum radial force at distance a (from shaft collar)	Fq max		7.1 kN	6.1 kN	6.9 kN	8.7 kN	8.6 kN	10.4 kN	7.6 kN	9.5 N	8.1 N	9.2 N	11.6 N	10.2 N	11.5 N	8.6 N	9.2 N	10.3 N	13.1 N	10.2 N	11.5 N
Maximum radial force at distance a (from shaft collar)	a	mm	18	18	18	18	20	20	18	18	18	18	20	20	20	18	18	18	20	20	20
Permitted torque at Fq max	Tq max	Nm	270	270	301	390	432	519	286	360	360	401	508	508	576	322	405	451	571	571	645
Permitted differential pressure at Fq max	Δpq max	bar	300	300	300	300	300	300	400	400	400	400	400	400	400	450	450	450	450	450	450
Maximum axial force, when standstill or in non-pressurized conditions	+ Fax max	N	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
	- Fax max	N	800	800	800	800	1000	1000	800	800	800	800	1000	1000	1000	800	800	800	1000	1000	1000
Maximum axial force, per bar operating pressure	+ Fax max	N/bar	8.7	8.7	8.7	8.7	10.6	10.6	8.7	8.7	8.7	8.7	10.6	10.6	10.6	8.7	8.7	8.7	10.6	10.6	10.6

General notes

The values given are maximum values and do not apply to continuous operation. The axial force in direction -Fax is to be avoided as the lifetime of the bearing is reduced. Special requirements apply in the case of belt drives. Please contact us.

Effect of radial force Fq on the service life of bearings

By selecting a suitable direction of radial force Fq the load on the bearings caused by the internal rotary group forces can be reduced, thus optimizing the service life of the bearings. Recommended position of mating gear is dependent on direction of rotation. Examples:

Toothed gear drive

1	Direction of rotation "counter-clockwise", pressure at port B
2	Direction of rotation "clockwise", pressure at port A
3	Direction of rotation "bidirectional"

Port plate 11

SAE working ports at bottom

1)	To shaft collar
2)	The O-ring is not included in the delivery contents.

Version	Size	D1		D2	D3	D4	D7	D8	D10	D11	D12	D14	D15	D16	D17	D18	D19	D20	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
A2FEN	56	160	- 0.025	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	- 0.025	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	- 0.025	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	- 0.029	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	- 0.029	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	45	160	- 0.025	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	- 0.025	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	- 0.025	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	- 0.029	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	- 0.029	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
A2FEH	45	160	- 0.025	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	- 0.025	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	- 0.025	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	- 0.029	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	- 0.029	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

Port plate 02

SAE working ports at side, opposite

1)	To shaft collar
2)	The O-ring is not included in the delivery contents.

Version	Size	D1		D2	D3	D4	D7	D8	D10	D11	D12	D14	D15	D16	D17	D18	D19	D20	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
A2FEN	56	160	- 0.025	118	112.4	127.5	235	18	92.3	90	86	125	88.4	10	30	65.9	123	32.9	200	18	5.2	141	23.8	50.8	19	75	20	Ø150 × 4
	63	160	- 0.025	118	112.4	127.5	235	18	92.3	90	86	125	88.4	10	30	65.9	123	32.9	200	18	5.2	141	23.8	50.8	19	75	20	Ø150 × 4
	80	160	- 0.025	118	112.4	127.5	235	18	92.3	90	86	125	88.4	10	30	65.9	123	32.9	200	18	5.2	141	23.8	50.8	19	75	20	Ø150 × 4
	90	190	- 0.029	140.3	120.5	148.5	260	20	110	106	101.5	145	93.5	10	30	67.5	127	33	224	22	5.2	159	27.8	57.2	25	84	25	Ø182 × 4
	107	190	- 0.029	140.3	120.5	148.5	260	20	110	106	101.5	145	93.5	10	30	67.5	127	33	224	22	5.2	159	27.8	57.2	25	84	25	Ø182 × 4
A2FEM	45	160	- 0.025	118	112.4	127.5	235	18	92.3	90	86	125	88.4	10	30	65.9	123	32.9	200	18	5.2	141	23.8	50.8	19	75	20	Ø150 × 4
	56	160	- 0.025	118	112.4	127.5	235	18	92.3	90	86	125	88.4	10	30	65.9	123	32.9	200	18	5.2	141	23.8	50.8	19	75	20	Ø150 × 4
	63	160	- 0.025	118	112.4	127.5	235	18	92.3	90	86	125	88.4	10	30	65.9	123	32.9	200	18	5.2	141	23.8	50.8	19	75	20	Ø150 × 4
	80	190	- 0.029	140.3	120.5	148.5	260	20	110	106	101.5	145	93.5	10	30	67.5	127	33	224	22	5.2	159	27.8	57.2	25	84	25	Ø182 × 4
	90	190	- 0.029	140.3	120.5	148.5	260	20	110	106	101.5	145	93.5	10	30	67.5	127	33	224	22	5.2	159	27.8	57.2	25	84	25	Ø182 × 4
A2FEH	45	160	- 0.025	118	112.4	127.5	235	18	92.3	90	86	125	88.4	10	30	65.9	123	32.9	200	18	5.2	141	23.8	50.8	19	75	20	Ø150 × 4
	56	160	- 0.025	118	112.4	127.5	235	18	92.3	90	86	125	88.4	10	30	65.9	123	32.9	200	18	5.2	141	23.8	50.8	19	75	20	Ø150 × 4
	63	160	- 0.025	118	112.4	127.5	235	18	92.3	90	86	125	88.4	10	30	65.9	123	32.9	200	18	5.2	141	23.8	50.8	19	75	20	Ø150 × 4
	80	190	- 0.029	140.3	120.5	148.5	260	20	110	106	101.5	145	93.5	10	30	67.5	127	33	224	22	5.2	159	27.8	57.2	25	84	25	Ø182 × 4
	90	190	- 0.029	140.3	120.5	148.5	260	20	110	106	101.5	145	93.5	10	30	67.5	127	33	224	22	5.2	159	27.8	57.2	25	84	25	Ø182 × 4

Drive shafts

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

Splined shaft DIN 5480

1)	Center bore according to DIN 332 (thread according to DIN 13)
2)	For size 80, pressure range "M" and "H": ⌀45 mm

Ports

Size			56	63	80	90	107	45	56	63	80	90	45	56	63	80	90
Version			A2FEN					A2FEM					A2FEH
A, B	Working port	Size	3/4 in			1 in		3/4 in			1 in		3/4 in			1 in
		Standard	Dimensions according to SAE J518
		Fastening thread	M10 × 1,5; 17 mm deep			M12 × 1,75; 17 mm deep		M10 × 1,5; 17 mm deep			M12 × 1,75; 17 mm deep		M10 × 1,5; 17 mm deep			M12 × 1,75; 17 mm deep
		State on delivery	With protective cover (must be connected)
T1	Drain port	Size	M18 × 1,5; 12 mm deep
		Standard 1)	DIN 3852
		State on delivery	Plugged (observe installation instructions)
T2	Drain port	Size	M18 × 1,5; 12 mm deep
		Standard 1)	DIN 3852
		State on delivery	With protective cover (observe installation instructions)

1)	The spot face can be deeper than specified in the appropriate standard.

Flushing and boost pressure valve

The integrated flushing and boost pressure valve is used in closed circuits for the removal of heat and to ensure a minimum boost pressure level.

Hydraulic fluid is directed from the respective low pressure side into the motor housing. This is then fed into the reservoir, together with the leakage. The removed hydraulic fluid must be replaced by cooled hydraulic fluid from the boost pump.

Cracking pressure of pressure retaining valve

(observe when setting the primary valve)

fixed setting: 16 bar

Switching pressure of flushing piston Δp

8±1 bar

Circuit diagram

Flushing flow qv

Orifices can be used to adjust the flushing flows as required. The following information is based on:
ΔpND = pND – pG = 25 bar und ν = 10 mm2/s

(pND = low pressure, pG = case pressure)

Size	Flushing flow qv	Orifice-⌀
Size	l/min	mm
all	2.6	1.0
	6	1.5
	7.4	1.7
	8,5	1.8
	11.4	2.3
	12.5	3

Speed sensor DSA

The speed sensor DSA scans contactless a specific spline on the rotary group and thus generates an output signal with constant amplitude and a frequency proportional to the motor speed. In addition to the speed also the direction of rotation is detected. The sensor is mounted on the port provided for this purpose with one mounting bolt.

The version A2F...A ("prepared for speed sensor", i.e. without sensor) is equipped with the splines on the rotary group needed for future speed measurement. On deliveries without sensor, the port is plugged with a pressure-resistant cover.

Technical data and further specifications of the sensor DSA can be found in the relevant data sheet 95133.

We recommend ordering the fixed motor A2F complete with mounted sensor.

Ports Metric version (code N)

Motor		Number of teeth	N1	N3	N4
Version	Size	Number of teeth	mm	mm	mm
A2FEN	56 … 80	47	32	36.3	54.6
A2FEN	90 … 107	53	32	30.4	58.8
A2FEM A2FEH	45 … 63	47	32	36.3	54.6
A2FEM A2FEH	80 … 90	53	32	30.4	58.8

Installation instructions

General

During commissioning and operation, the axial piston unit must be filled with hydraulic fluid and air bled. This must also be observed following a relatively long standstill as the axial piston unit may drain back to the reservoir via the hydraulic lines. The case drain fluid in the housing must be directed to the reservoir via the highest available drain port (T1,T2). If a shared drain line is used for several units, make sure that the respective case pressure is not exceeded. The shared drain line must be dimensioned to ensure that the maximum permissible case pressure of all connected units is not exceeded in any operating conditions, specifically on cold start. If this is not possible, separate reservoir lines must be laid as required. To achieve favorable noise values, all connecting lines should be decoupled by using elastic elements and above-reservoir installation is to be avoided. In all operating conditions, the drain line must flow into the reservoir below the minimum fluid level.

Note

The “shaft upwards” installation position is not permissible..

Installation position

See the following examples 1 to 6.

Further installation positions are possible upon request. Recommended installation position: 1 and 2.

Below-tank installation (standard)

Below-tank installation is at hand if the axial piston unit is installed below the minimum liquid level outside the tank.

Installation position	Air bleeding	Filling
1	‒	T1
2	‒	T2
3	‒	T1

Above-reservoir installation

Above-reservoir installation means that the axial piston unit is installed above the minimum fluid level of the reservoir.

Installation position	Air bleeding	Filling
4	F	T1 (F)
5	F	T2 (F)
6	F	T1 (F)

Key
F	Filling / Air bleeding
T1, T2	Drain port
ht min	Minimum required immersion depth (200 mm)
hmin	Minimum required spacing to reservoir bottom (100 mm)

Note

Connection F is part of the external piping and must be provided on the customer side to simplify the filling and bleeding.

General project planning notes

The axial piston unit is designed to be used in open and closed circuits. The project planning, installation and commissioning of the axial piston unit require the involvement of qualified skilled personnel. Before using the axial piston unit, please read the corresponding instruction manual completely and thoroughly. If necessary, request it from Bosch Rexroth. Before finalizing your design, request a binding installation drawing. The specified datas and notes must be observed. Preservation: Our axial piston units are supplied as standard with preservative protection for a maximum of 12 months. If longer preservative protection is required (maximum 24 months), please specify this in plain text when placing your order. The preservation times are valid under optimal storage conditions. Details of these conditions can be found in the data sheet 90312 or the instruction manual. Not all versions of the product are approved for use in a safety function according to ISO 13849. Please consult the responsible contact person at Bosch Rexroth if you require reliability parameters (e.g. MTTFD) for functional safety. A pressure relief valve is to be provided in the hydraulic system. Observe the instructions in the instruction manual regarding tightening torques of connection threads and other threaded joints used. The notes in the instruction manual on tightening torques of the port threads and other screw joints must be observed. The ports and fastening threads are designed for the permissible maximum pressure pmax (see instruction manual). The machine or system manufacturer must ensure that the connecting elements and lines correspond to the specified operating conditions (pressure, flow, hydraulic fluid, temperature) with the necessary safety factors. The working ports and function ports are designated only to accommodate hydraulic lines.

During and shortly after operation, there is a risk of burns on the axial piston unit. Take appropriate safety measures (e.g. by wearing protective clothing).

BOSCH REXROTHR902269716

Table of values

Note

Speed range

Hydraulic fluids

Viscosity and temperature of hydraulic fluids

Note

Explanatory note regarding the selection of hydraulic fluid

Selection diagram

Filtration of the hydraulic fluid

Operating pressure range

Note

Minimum pressure at inlet (pump operating mode)

Pressure definition

Rate of pressure change

Note

Direction of flow

Permissible radial and axial forces of the drive shaft

Effect of radial force Fq on the service life of bearings

Toothed gear drive

Port plate 11

Port plate 02

Drive shafts

Overview of available drive shafts

A2FEN

A2FEM

A2FEH

Splined shaft DIN 5480

Ports

Flushing and boost pressure valve

Circuit diagram

Flushing flow qv

Speed sensor DSA

Ports Metric version (code N)

Installation instructions

General

Note

Installation position

Below-tank installation (standard)

Above-reservoir installation

Note

General project planning notes

BOSCH REXROTH
R902269716