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Артикул: RX9942

Axial piston fixed pump A2FO series 6x

Name: Axial piston fixed pump A2FO series 6x
Brand: Bosch Rexroth
SKU: RX9942
Price: 2850 RUB
Availability: InStock

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Description

All-purpose high pressure pump
Size 5 … 32, 160 … 1000
Nominal pressure up to 400 bar
Maximum pressure up to 450 bar
Open circuit

Features

Robust pump with long service life
Very high total efficiency
High power density
Large variety of available nominal sizes allows exact adjustment to the application
Optional with long-life bearings for the nominal sizes 250 to 1000
Bent-axis design

Type code

1)	Tapered shaft with threaded pin and woodruff key (DIN 6888). The torque must be transmitted via the tapered press fit.

Technical data

Table of values

Size				5	10	12	16	23	28	32	160	180	200	250	355	500	710	1000
Displacement geometric, per revolution		Vg	cm³	4.93	10.3	12	16	22.9	28.1	32	160.4	180	200	250	355	500	710	1000
Nominal pressure		pnom	bar	315	400	400	400	400	400	400	400	400	400	350	350	350	350	350
Maximum pressure		pmax	bar	350	450	450	450	450	450	450	450	450	450	400	400	400	400	400
Maximum speed		nnom 1)	rpm	5600	3150	3150	3150	2500	2500	2500	1450	1450	1550	1500	1320	1200	1200	950
Maximum speed		nmax 2)	rpm	8000	6000	6000	6000	4750	4750	4750	2650	2650	2750	1800	1600	1500	1500	1200
Flow	at nnom	qV	l/min	27.6	32	38	50	57	70	80	233	261	310	375	469	600	852	950
Power	at nnom and pnom	P	kW	14.5	22	25	34	38	47	53	155	174	207	219	273	350	497	554
Torque 3)	at pnom	M	Nm	24.7	66	76	102	146	179	204	1021	1146	1273	1393	1978	2785	3955	5570
Rotary stiffness		c	kNm/rad	0.63	0.92	1.25	1.59	2.56	2.93	3.12	17.4	18.2	57.3	73.1	96.1	144	270	324
Moment of inertia for rotary group		JTW	kg·m²	0006	004	004	004	012	012	012	0.022	0.022	0.0353	0.061	0.102	0.178	0.55	0.55
Case volume		V	l		0.17	0.17	0.17	0.2	0.2	0.2	1.1	1.1	2.7	2.5	3.5	4.2	8	8
Weight (approx.)		m	kg	2.5	6	6	6	9.5	9.5	9.5	45	45	66	73	110	155	325	336

1)	The values are applicable: – at an abs. pressure pabs = 1 bar at the suction port S – for the optimum viscosity range of vopt = 36 to 16 mm2/s - with hydraulic fluid on the basis of mineral oils
2)	Maximum speed (limiting speed) with increased inlet pressure pabs at suction port S, see the following diagram.
3)	Torque without radial force, with radial force see table "Permissible radial and axial forces of the drive shafts"

Maximum speed

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.

Determining the operating characteristics
Flow		[l/min]
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-resistan, water-containing hydraulic fluids (HFAE, HFAS, HFB, HFC)

90225: Restricted technical data for operation with fire-resistant hydraulic fluids

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)

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 (νopt; 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.
Rate of pressure change	RA max	16000 bar/s	Maximum permissible rate of pressure build-up and reduction during a pressure change over the entire pressure range.
Pressure at suction port S (inlet)			Definition
Minimum pressure	ps min	0.8 bar absolute	Minimum pressure at inlet (suction port S) that is required to avoid damage to the axial piston unit. The minimum required pressure is dependent on the speed of the axial piston unit. (see diagram "Maximum speed")
Maximum pressure	ps max	30 bar absolute
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)
Maximum differential pressure	ΔpT max	see diagram "Maximum differential pressure at the shaft seal"	Intermittent differential pressure at the shaft seal (permitted at reduced speed)
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.

Pressure definition

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

Rate of pressure change

Maximum differential pressure at the shaft seal

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
Direction of flow	S to B	S to A

Permissible radial and axial forces of the drive shaft

Size			5	10		12		16	23		28		32	160		180	200	250	355	500	710	1000
Drive shaft	Code		B, C	Z, P	A, B	Z, P	A, B	A, B	Z, P	A, B	Z, P	A, B	A, B	Z, P	A, B	A, B	A, B	Z, P	Z, P	Z, P	Z, P	Z, P
Drive shaft	⌀	mm	12	20	25	20	25	25	25	30	25	30	30	45	50	50	50	50	60	70	90	90
Maximum radial force at distance a (from shaft collar)	Fq max	kN	1.6	3	3.2	3	3.2	3.2	5.7	5.4	5.7	5.4	5.4	18.1	18.3	18.3	20.3	1.2 1)	1.5 1)	1.9 1)	3 1)	2.6 1)
Maximum radial force at distance a (from shaft collar)	a	mm	12	16	16	16	16	16	16	16	16	16	16	25	25	25	25	41	52.5	52.5	67.5	67.5
Permitted torque at Fq max	Tq max	Nm	24.7	66	66	76	76	102	146	146	179	179	204	1021	1021	1146	1273
Permitted differential pressure at Fq max	Δpq max	bar	315	400	400	400	400	400	400	400	400	400	400	400	400	400	400
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	0
	- Fax max	N	180	320	320	320	320	320	500	500	500	500	500	1600	1600	1600	1600	2000	2500	3000	4400	4400
Maximum axial force, per bar operating pressure	+ Fax max	N/bar	1.5	3	3	3	3	3	5.2	5.2	5.2	5.2	5.2	16.7	16.7	16.7	16.7

1)	When at a standstill or when axial piston unit operating in non-pressurized conditions. Higher forces are permissible when under pressure, please contact us.

General information

The specified values are maximum data and not approved for continuous operation.

The axial force in the direction of action -Fax is to be avoided as this reduces the bearing life cycle.

The output by means of belts requires special conditions. Please consult us.

Notes for sizes 250 ... 1000:

In case of radial forces limited performance data is valid. Please contact us.

In case of axial forces during operation of the unit 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, size 5 … 180

Toothed gear drive, size 200 … 1000

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

Long-life bearing

Size 250 to 1000

For long life cycle and use with HF hydraulic fluids. Identical external dimensions as design with standard bearing. Subsequent modification to long-life bearing is possible. Bearing and housing flushing via connection U is recommended.

Bearing flushing

Flushing flow (recommended)

Size		250	355	500	710	1000
Flushing flow qv	l/min	10	16	16	16	16

Dimensions

Size 5

1)	To shaft collar

Drive shafts

1)	Center bore according to DIN 332 (thread according to DIN 13)
2)	Thread according to DIN 3852, maximum tightening torque: 30 Nm

Ports

Size			5
B (A)	Working port	Size	M18 × 15; 12 mm deep
		Standard 1)	DIN 3852
		State on delivery	With protective cover (must be connected)
S	Suction port	Size	M22 × 15; 14 mm deep
		Standard 1)	DIN 3852
		State on delivery	With protective cover (must be connected)
T1	Drain port	Size	M10 × 1; 8 mm deep
		Standard 1)	DIN 3852
		State on delivery 2)	Plugged (observe installation instructions)
T2	Drain port	Size	M10 × 1; 8 mm deep
		Standard 1)	DIN 3852
		State on delivery 2)	With protective cover (observe installation instructions)

1)	The spot face can be deeper than specified in the appropriate standard.
2)	Unless otherwise specified. Other layouts on request.

Size 10 … 16

1)	To shaft collar

Drive shafts Z and A

1)	Center bore according to DIN 332 (thread according to DIN 13)

Drive shafts P and B

1)	Center bore according to DIN 332 (thread according to DIN 13)

Ports

Size			10	12	16
B (A)	Working port	Size	M22 × 15; 14 mm deep
		Standard 1)	DIN 3852
		State on delivery	With protective cover (must be connected)
S	Suction port	Size	M33 × 2; 18 mm deep
		Standard 1)	DIN 3852
		State on delivery	With protective cover (must be connected)
T1	Drain port	Size	M12 × 15; 12 mm deep
		Standard 1)	DIN 3852
		State on delivery 2)	Plugged (observe installation instructions)
T2	Drain port	Size	M12 × 15; 12 mm deep
		Standard 1)	DIN 3852
		State on delivery 2)	With protective cover (observe installation instructions)
R	Air bleed port	Size	M8 × 1; 8 mm deep
		Standard 1)	DIN 3852
		State on delivery	Plugged

1)	The spot face can be deeper than specified in the appropriate standard.
2)	Unless otherwise specified. Other layouts on request.

Size 23 … 180

1)	To shaft collar

Size	D1		D3	D4	D6	D8	D9	D10	D11	D12	D13	D14	D15	D16	D17	D18	D19	D20	D21	D22	D25	D28	D29	D32	D40	D41	D42	D43	D44
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
23	100	0 - 0.022	190	117	60	18	8	25	23.2	70	144	88	166	14	25	106	56	42	61	9	118	125	11	106	18.2	40.5	13	22.2	47.6
28	100	0 - 0.022	190	117	60	18	8	25	23.2	70	144	88	166	14	25	106	56	42	61	9	118	125	11	106	18.2	40.5	13	22.2	47.6
32	100	0 - 0.022	190	117	60	18	8	25	23.2	70	144	88	166	14	25	106	56	42	61	9	118	125	11	106	18.2	40.5	13	22.2	47.6
160	180	0 - 0.025	294	188	101	25	10	40	37.2	121	237	149	271	15	47	158	96	72	108	13	210	224	17.5	180	31.8	66.7	32	35.7	69.9
180	180	0 - 0.025	294	188	101	25	10	40	37.2	121	237	149	271	15	47	158	96	72	108	13	210	224	17.5	180	31.8	66.7	32	35.7	69.9

Drive shafts Z and A

1)	Center bore according to DIN 332 (thread according to DIN 13)

Splined shaft DIN 5480

NG	Code	Designation	Thread G	N2	N3	N4	N5	ØN6
NG	Code	Designation	Thread G	mm	mm	mm	mm	mm
23	Z	W25×1.25×18×9g	M8 × 1.25	6	19	28	43	35
23	A	W30×2×14×9g	M10 × 1.5	7.5	22	27	35	35
28	Z	W25×1.25×18×9g	M8 × 1.25	6	19	28	43	35
28	A	W30×2×14×9g	M10 × 1.5	7.5	22	27	35	35
32	A	W30×2×14×9g	M10 × 1.5	7.5	22	27	35	35
160	Z	W45×2×21×9g	M16 × 2	12	36	42	50	60
160	A	W50×2×24×9g	M16 × 2	12	36	44	55	60
180	A	W50×2×24×9g	M16 × 2	12	36	44	55	60

Drive shafts P and B

1)	Center bore according to DIN 332 (thread according to DIN 13)

Parallel keyed shaft DIN 6885

NG	Code	Designation	Thread G	⌀N1		N2	N3	N5	⌀N6	N7	N8
NG	Code	Designation	Thread G	mm	mm	mm	mm	mm	mm	mm	mm
23	P	⌀25, AS8×7×40	M8 × 1.25	25	+ 0.015 + 02	6	19	50	35	28	8
23	B	⌀30, AS8×7×40	M10 × 1.5	30	+ 0.015 + 02	7.5	22	50	35	33	8
28	P	⌀25, AS8×7×40	M8 × 1.25	25	+ 0.015 + 02	6	19	50	35	28	8
28	B	⌀30, AS8×7×40	M10 × 1.5	30	+ 0.015 + 02	7.5	22	50	35	33	8
32	B	⌀30, AS8×7×40	M10 × 1.5	30	+ 0.015 + 02	7.5	22	50	35	33	8
160	P	⌀45, AS14×9×70	M16 × 2	45	+ 0.018 + 02	12	36	90	60	48.5	14
160	B	⌀50, AS14×9×70	M16 × 2	50	+ 0.018 + 02	12	36	90	60	53.5	14
180	B	⌀50, AS14×9×70	M16 × 2	50	+ 0.018 + 02	12	36	90	60	53.5	14

Ports

Size			23	28	32	160	180
B (A)	Working port	Size	1/2 in			1 1/4 in
		Standard	Dimensions according to SAE J518
		Fastening thread 1)	M8 × 125; 15 mm deep			M14 × 2; 19 mm deep
		State on delivery	With protective cover (must be connected)
S	Suction port	Size	3/4 in			1 1/2 in
		Standard	Dimensions according to SAE J518
		Fastening thread 1)	M10 × 15; 17 mm deep			M12 × 175; 20 mm deep
		State on delivery	With protective cover (must be connected)
T1	Drain port	Size	M16 × 15; 12 mm deep			M22 × 15; 14 mm deep
		Standard 2)	DIN 3852
		State on delivery 3)	Plugged (observe installation instructions)
T2	Drain port	Size	M16 × 15; 12 mm deep			M22 × 15; 14 mm deep
		Standard 2)	DIN 3852
		State on delivery 3)	With protective cover (observe installation instructions)
R	Air bleed port	Size	M10 × 1; 12 mm deep			M14 × 15; 12 mm deep
		Standard 2)	DIN 3852
		State on delivery	Plugged

1)	Thread according to DIN 13
2)	The spot face can be deeper than specified in the appropriate standard.
3)	Unless otherwise specified. Other layouts on request.

Size 200

1)	To shaft collar

Drive shafts

1)	Center bore according to DIN 332 (thread according to DIN 13)

Ports

Size			200
B (A)	Working port	Size	1 1/4 in
		Standard	Dimensions according to SAE J518
		Fastening thread 1)	M14 × 2; 19 mm deep
		State on delivery	With protective cover (must be connected)
S	Suction port	Size	3 1/2 in
		Standard	Dimensions according to SAE J518
		Fastening thread 1)	M16 × 2; 24 mm deep
		State on delivery	With protective cover (must be connected)
T1	Drain port	Size	M22 × 15; 14 mm deep
		Standard 2)	DIN 3852
		State on delivery 3)	Plugged (observe installation instructions)
T2	Drain port	Size	M22 × 15; 14 mm deep
		Standard 2)	DIN 3852
		State on delivery 3)	With protective cover (observe installation instructions)
R	Air bleed port	Size	M14 × 15; 12 mm deep
		Standard 2)	DIN 3852
		State on delivery	Plugged

1)	Thread according to DIN 13
2)	The spot face can be deeper than specified in the appropriate standard.
3)	Unless otherwise specified. Other layouts on request.

Size 250

1)	To shaft collar

Drive shafts

1)	Center bore according to DIN 332 (thread according to DIN 13)

Ports

Size			250
B (A)	Working port	Size	1 1/4 in
		Standard	Dimensions according to SAE J518
		Fastening thread 1)	M14 × 2; 19 mm deep
		State on delivery	With protective cover (must be connected)
S	Suction port	Size	2 1/2 in
		Standard	Dimensions according to SAE J518
		Fastening thread 1)	M12 × 175; 17 mm deep
		State on delivery	With protective cover (must be connected)
T1	Drain port	Size	M22 × 15; 14 mm deep
		Standard 2)	DIN 3852
		State on delivery 3)	With protective cover (observe installation instructions)
T2	Drain port	Size	M22 × 15; 14 mm deep
		Standard 2)	DIN 3852
		State on delivery 3)	Plugged (observe installation instructions)
U	Bearing flushing	Size	M14 × 15; 12 mm deep
		Standard 2)	DIN 3852
		State on delivery	Plugged

1)	Thread according to DIN 13
2)	The spot face can be deeper than specified in the appropriate standard.
3)	Unless otherwise specified. Other layouts on request.

Size 355 … 1000

1)	To shaft collar

Size	D1		D3	D4	D5	D7	D8	D9	D10	D11	D12	D14	D15	D18	D20	D24	D25	D27	D28	D29	D30	D32	D40	D41	D42	D43	D44	D45	D47	D48
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
355	280	0 - 0.081	350	198	171	250	28	14	50	48	128	102	320	83	83	23.5	335	360	320	18	M18	245	36.5	79.4	40	50.8	88.9	63	60	50
500	315	0 - 0.081	396	220	192	276	30	14	50	48	142	112.5	362	98	111	27.5	375	400	360	22	M20	270	36.6	79.4	40	62	106.4	75	65	55
710	400	0 - 0.089	507	249	236	344	35	14	50	47	183	102	485	131	156	41.5	465	500	450	22	M24	340	44.5	96.8	50	77.8	130.2	100	85	70
1000	400	0 - 0.089	511	277	236	344	35	14	50	47	183	143	468	131	156	41.5	465	500	450	22	M24	340	44.5	96.8	50	77.8	130.2	100	85	70

Drive shaft Z

1)	Center bore according to DIN 332 (thread according to DIN 13)

Splined shaft DIN 5480

NG	Code	Designation	Thread G	N2	N3	N4	N5	⌀N6
NG	Code	Designation	Thread G	mm	mm	mm	mm	mm
355	Z	W60×2×28×9g	M20 × 2.5	15	42	71	82	70
500	Z	W70×3×22×9g	M20 × 2.5	15	42	67	80	80
710	Z	W90×3×28×9g	M24 × 3	18	50	91	105	100
1000	Z	W90×3×28×9g	M24 × 3	18	50	91	105	100

Drive shaft P

1)	Center bore according to DIN 332 (thread according to DIN 13)

Parallel keyed shaft DIN 6885

NG	Code	Designation	Thread G	⌀N1		N2	N3	N5	⌀N6	N7	N8
NG	Code	Designation	Thread G	mm	mm	mm	mm	mm	mm	mm	mm
355	P	⌀60, AS18×11×100	M20 × 2.5	60	+ 0.03 + 0.011	15	42	105	70	64	18
500	P	⌀70, AS20×12×100	M20 × 2.5	70	+ 0.03 + 0.011	15	42	105	80	74.5	20
710	P	⌀90, AS25×14×125	M24 × 3	90	+ 0.035 + 0.013	18	50	130	100	95	25
1000	P	⌀90, AS25×14×125	M24 × 3	90	+ 0.035 + 0.013	18	50	130	100	95	25

Ports

Size			355	500	710	1000
B (A)	Working port	Size	1 1/2 in		2 in
		Standard	Dimensions according to SAE J518
		Fastening thread 1)	M16 × 2; 21 mm deep		M20 × 25; 30 mm deep
		State on delivery	With protective cover (must be connected)
S	Suction port	Size	2 1/2 in	3 in	4 in
		Standard	Dimensions according to SAE J518
		Fastening thread 1)	M12 × 175; 17 mm deep	M16 × 2; 24 mm deep
		State on delivery	With protective cover (must be connected)
T1	Drain port	Size	M33 × 2; 18 mm deep		M42 × 2; 20 mm deep
		Standard 2)	DIN 3852
		State on delivery 3)	With protective cover (observe installation instructions)
T2	Drain port	Size	M33 × 2; 18 mm deep		M42 × 2; 20 mm deep
		Standard 2)	DIN 3852
		State on delivery 3)	Plugged (observe installation instructions)
U	Bearing flushing	Size	M14 × 15; 12 mm deep	M18 × 15; 12 mm deep
		Standard 2)	DIN 3852
		State on delivery	Plugged
MB (MA)	Measuring port pressure A, B	Size	M14 × 15; 12 mm deep
		Standard 2)	DIN 3852
		State on delivery	Plugged
MS	Measuring port suction pressure	Size	M14 × 15; 12 mm deep
		Standard 2)	DIN 3852
		State on delivery	Plugged

1)	Thread according to DIN 13
2)	The spot face can be deeper than specified in the appropriate standard.
3)	Unless otherwise specified. Other layouts on request.

Project planning information

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.

Particularly in the installation position "drive shaft upwards" filling and air bleeding must be carried out completely as there is, for example, a danger of dry running.

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 suction and drain lines must lead into the reservoir below the minimum fluid level. The permissible suction height hS results from the overall loss of pressure; it must not, however, be higher than hS max = 800 mm. The minimum suction pressure at port S must also not fall below 0,8 bar absolute during operation and during cold start.

When designing the reservoir, ensure adequate space between the suction line and the drain line.This provides a slow-down and desgasification of the fluid and prevents that heated return flow is being drawn directly back into the suction line.

Installation position

See the following examples 1 to 8.

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
4	R (U)	T2

Above-reservoir installation

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

Recommendation for installation position 8 (drive shaft upward): A check valve in the drain line (cracking pressure 0,5 bar) can prevent draining of the pump housing.

Installation position	Air bleeding	Filling
5	F	T1 (F)
6	F	T2 (F)
7	F	T1 (F)
8	R (U)	T2 (F)

Key
F	Filling / Air bleeding
R	Air bleed port
U	Bearing flushing / air bleed port
S	Suction port
T1, T2	Drain port
ht min	Minimum required immersion depth (200 mm)
hmin	Minimum required spacing to reservoir bottom (100 mm)
SB	Baffle (baffle plate)
hS max	Maximum permissible suction height (800 mm)

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

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 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.

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 only intended to accommodate hydraulic lines.

Safety Instructions

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).

Downloads

	Аксиально-поршневой насос с постоянным рабочим объемом A2FO/6x Data Sheet \| R-RS91401 \| 2012-06-01 \| Russian \| PDF \| 717k Product Groups: Fixed pumps, Fixed pumps
	Axial Piston Fixed Displacement Pump A2FO Data Sheet \| RE91401 \| 2012-06-01 \| English \| PDF \| 652k Product Groups: Fixed pumps, Fixed pumps Series 6
	Axialkolben-Konstantpumpe A2FO Data Sheet \| RD91401 \| 2012-06-01 \| German \| PDF \| 655k Product Groups: Fixed pumps, Fixed pumps Baureihe 6
	Pompa osiowa tłokowa o stałej objętości roboczej A2FO Data Sheet \| R-PL91401 \| 2012-06-01 \| Polish \| PDF \| 810k Product Groups: Fixed pumps, Fixed pumps Specyfikacja techniczna
	轴向柱塞定量泵 A2FO Data Sheet \| RC91401 \| 2012-06-01 \| Chinese \| PDF \| 877k Product Groups: Fixed pumps, Fixed pumps 技术数据表
	固定容量形アキシャルピストンポンプ A2FO Data Sheet \| RJ91401 \| 2012-06-01 \| Japanese \| PDF \| 790k Product Groups: Fixed pumps, Fixed pumps
	Axial piston fixed displacement pump AA2FO Data Sheet \| RE-A91401 \| 2014-07-01 \| English \| PDF \| 568k Product Groups: Fixed pumps, Fixed pumps Series 6
	固定容量形アキシャルピストンポンプ A2FO シリーズ 6 Manual \| RJ91401-01-B \| 2011-06-01 \| Japanese \| PDF \| 2MB Product Groups: Pumps, Fixed pumps 取扱説明書
	Axialkolben-Konstantpumpe A2FO Manual \| RD91401-01-B \| 2011-06-01 \| German \| PDF \| 2MB Product Groups: Pumps, Fixed pumps
	Axial Piston Fixed Pump A2FO Manual \| RE91401-01-B \| 2011-06-01 \| English \| PDF \| 2MB Product Groups: Pumps, Fixed pumps
	Axiáldugattyús, állandó szállítású szivattyú A2FO 6. gyártási sorozat Manual \| RU91401-01-B \| 2011-06-01 \| Hungarian \| PDF \| 2.1MB Product Groups: Pumps, Fixed pumps Kezelési útmutató

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	Аксиально-поршневой насос с постоянным рабочим объемом A2FO/6x Data Sheet \| R-RS91401 \| 2012-06-01 \| Russian \| PDF \| 717k Product Groups: Fixed pumps, Fixed pumps
	Axial Piston Fixed Displacement Pump A2FO Data Sheet \| RE91401 \| 2012-06-01 \| English \| PDF \| 652k Product Groups: Fixed pumps, Fixed pumps Series 6
	Axialkolben-Konstantpumpe A2FO Data Sheet \| RD91401 \| 2012-06-01 \| German \| PDF \| 655k Product Groups: Fixed pumps, Fixed pumps Baureihe 6
	Pompa osiowa tłokowa o stałej objętości roboczej A2FO Data Sheet \| R-PL91401 \| 2012-06-01 \| Polish \| PDF \| 810k Product Groups: Fixed pumps, Fixed pumps Specyfikacja techniczna
	轴向柱塞定量泵 A2FO Data Sheet \| RC91401 \| 2012-06-01 \| Chinese \| PDF \| 877k Product Groups: Fixed pumps, Fixed pumps 技术数据表
	固定容量形アキシャルピストンポンプ A2FO Data Sheet \| RJ91401 \| 2012-06-01 \| Japanese \| PDF \| 790k Product Groups: Fixed pumps, Fixed pumps
	Axial piston fixed displacement pump AA2FO Data Sheet \| RE-A91401 \| 2014-07-01 \| English \| PDF \| 568k Product Groups: Fixed pumps, Fixed pumps Series 6
	固定容量形アキシャルピストンポンプ A2FO シリーズ 6 Manual \| RJ91401-01-B \| 2011-06-01 \| Japanese \| PDF \| 2MB Product Groups: Pumps, Fixed pumps 取扱説明書
	Axialkolben-Konstantpumpe A2FO Manual \| RD91401-01-B \| 2011-06-01 \| German \| PDF \| 2MB Product Groups: Pumps, Fixed pumps
	Axial Piston Fixed Pump A2FO Manual \| RE91401-01-B \| 2011-06-01 \| English \| PDF \| 2MB Product Groups: Pumps, Fixed pumps
	Axiáldugattyús, állandó szállítású szivattyú A2FO 6. gyártási sorozat Manual \| RU91401-01-B \| 2011-06-01 \| Hungarian \| PDF \| 2.1MB Product Groups: Pumps, Fixed pumps Kezelési útmutató