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A10FE series 52

Medium pressure motor for integration in mechanical gearboxes.
Size 10 … 63.
Nominal pressure 280 bar.
Maximum pressure 350 bar.
Open and closed circuits.

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Model:
A A10F E 10 /52L-VCH16N002
Brand:
Rexroth
Code:
R902449895

Space-saving construction due to recessed mounting flange
Approved for high speeds
Long service life
High power density
Low operating noise
Optional with integrated anti-cavitation valve, e.g. for fan drives
Optional with speed sensor
Swashplate design

Table of values

Size				10	11	14	16	18	23	28	37	45	58	63
Displacement geometric, per revolution		Vg	cm³	10.6	11.5	14.1	16.1	18	23.5	28.5	36.7	44.5	58	63.1
Nominal pressure		pnom	bar	280	280	280	280	280	280	280	280	280	280	280
Maximum pressure		pmax	bar	350	350	350	350	350	350	350	350	350	350	350
Maximum speed 1)		nnom	rpm	5000	4200	4200	4200	4200	4900	4700	4200	4000	3600	3400
Inlet flow	at nnom	qV	l/min	53	48	59	68	76	115	134	154	178	209	215
Power	at nnom and pnom	P	kW	24.7	22.5	27.6	31.6	35.3	53.6	62.5	71.8	83.1	97.4	100.1
Starting torque	at nnom and pnom	M0	Nm	37.5	30	45	53	67.5	75	105	125	170	205	230
Torque	at pnom	M	Nm	47	51	63	72	80	105	127	163	198	258	281
Rotary stiffness	Drive shaft R	c	kNm/rad					14.835	28.478	28.478	46.859	46.859	80.59	80.59
	Drive shaft W	c	kNm/rad								38.489	34.489	60.907	60.907
	Drive shaft C	c	kNm/rad	15.084	18.662	18.662	18.662	18.662	30.017	30.017	46.546	46.546	87.667	87.667
Moment of inertia for rotary group		JTW	kg·m²	0.0006	0.00093	0.00093	0.00093	0.00093	0.0017	0.0017	0.0033	0.0033	0.0056	0.0056
Maximum angular acceleration		ɑ	rad/s²	8000	6800	6800	6800	6800	5500	5500	4000	4000	3300	3300
Case volume		V	l	0.1	0.15	0.15	0.15	0.15	0.6	0.6	0.7	0.7	0.8	0.8
Weight (approx.)		m	kg	5	6.5	6.5	6.5	6.5	12	12	17	17	22	22

1)	At least 18 bar required at low pressure side

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. We recommend testing the loads by means of experiment or calculation / simulation and comparison with the permissible values.

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

For operation with environmentally acceptable fluids please consult us.

Viscosity and temperature of hydraulic fluids

	Viscosity	Shaft seal	Temperature1)	Comment
Cold start	νmax ≤ 1600 mm²/s	NBR2)	ϑSt ≥ -40 °C	t ≤ 1 min, without load (p ≤ 30 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 L
	ν = 10 … 400 mm²/s3)	FKM	ϑ ≤ +103 °C	measured at port L
	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 L
Short-term operation	νmin = 7 … 10 mm²/s	FKM	ϑ ≤ +103 °C	t ≤ 3 min, p ≤ 0.3 • pnom measured at port L

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			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		2.5 s
Total operating period		300 h
Minimum pressure (high-pressure side)	pHP min	10 bar	Minimum pressure on high- or low-pressure side (port A or B) required to prevent damage to the axial piston unit.
Minimum pressure (low-pressure side)	pLP min	see diagram "Permissible rotational speed in relation to outlet pressure"
Rate of pressure change			Definition
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.
Case pressure at port L			Definition
Motor operation mode	pL max	4 bar absolute	Maximum permissible case pressure measured at port L or L1
Pump operating mode	pL max	2 bar absolute	Maximum permissible case pressure measured at port L or L1

Note

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

Permissible rotational speed in relation to outlet pressure

Pressure definition

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

Rate of pressure change

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			10	11	14	16	18	23	28	37	45	58	63
Splined shaft	Code		R	R	R	R	R	R, W	R, W	R, W	R, W	R, W	R, W
Tapered shaft	Code		C	C	C	C	C	C	C	C	C	C	C
Maximum radial force at distance a = x/2 (from shaft collar)	Fq max	N	250	350	350	350	350	1200	1200	1500	1500	1700	1700
Maximum axial force	± Fax max	N	400	700	700	700	700

Size	10	11	14	16	18	23	28	37	45	58	63
Displacement geometric, per revolution	Vg	cm³	10.6	11.5	14.1	16.1	18	23.5	28.5	36.7	44.5	58	63.1
Nominal pressure	pnom	bar	280	280	280	280	280	280	280	280	280	280	280
Maximum pressure	pmax	bar	350	350	350	350	350	350	350	350	350	350	350
Maximum speed 1)	nnom	rpm	5000	4200	4200	4200	4200	4900	4700	4200	4000	3600	3400
Inlet flow	at nnom	qV	l/min	53	48	59	68	76	115	134	154	178	209	215
Power	at nnom and pnom	P	kW	24.7	22.5	27.6	31.6	35.3	53.6	62.5	71.8	83.1	97.4	100.1
Starting torque	at nnom and pnom	M0	Nm	37.5	30	45	53	67.5	75	105	125	170	205	230
Torque	at pnom	M	Nm	47	51	63	72	80	105	127	163	198	258	281
Rotary stiffness	Drive shaft R	c	kNm/rad					14.835	28.478	28.478	46.859	46.859	80.59	80.59
Drive shaft W	c	kNm/rad								38.489	34.489	60.907	60.907
Drive shaft C	c	kNm/rad	15.084	18.662	18.662	18.662	18.662	30.017	30.017	46.546	46.546	87.667	87.667
Moment of inertia for rotary group	JTW	kg·m²	0.0006	0.00093	0.00093	0.00093	0.00093	0.0017	0.0017	0.0033	0.0033	0.0056	0.0056
Maximum angular acceleration	ɑ	rad/s²	8000	6800	6800	6800	6800	5500	5500	4000	4000	3300	3300
Case volume	V	l	0.1	0.15	0.15	0.15	0.15	0.6	0.6	0.7	0.7	0.8	0.8
Weight (approx.)	m	kg	5	6.5	6.5	6.5	6.5	12	12	17	17	22	22

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)

	Viscosity	Shaft seal	Temperature1)	Comment
Cold start	νmax ≤ 1600 mm²/s	NBR2)	ϑSt ≥ -40 °C	t ≤ 1 min, without load (p ≤ 30 bar), n ≤ 1000 rpm, permissible temperature difference between axial piston unit and hydraulic fluid max. 25 K
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 L
FKM	ϑ ≤ +103 °C
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 L
FKM	ϑ ≤ +103 °C

Pressure at working port A or B	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	2.5 s
Total operating period	300 h
Minimum pressure (high-pressure side)	pHP min	10 bar	Minimum pressure on high- or low-pressure side (port A or B) required to prevent damage to the axial piston unit.
Minimum pressure (low-pressure side)	pLP min	see diagram "Permissible rotational speed in relation to outlet pressure"
Rate of pressure change	Definition
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.
Case pressure at port L	Definition
Motor operation mode	pL max	4 bar absolute	Maximum permissible case pressure measured at port L or L1
Pump operating mode	pL max	2 bar absolute

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

Size	10	11	14	16	18	23	28	37	45	58	63
Splined shaft	Code	R	R	R	R	R	R, W	R, W	R, W	R, W	R, W	R, W
Tapered shaft	Code	C	C	C	C	C	C	C	C	C	C	C
Maximum radial force at distance a = x/2 (from shaft collar)			Fq max	N	250	350	350	350	350	1200	1200	1500	1500	1700	1700
Maximum axial force		± Fax max	N	400	700	700	700	700

Port plate 16

1)	Flange ISO 3019-1

Drive shaft

Ports

Size			10
A, B	Working port	Size	M18 × 15; 17 mm deep
		Standard	DIN 3852
		State on delivery	With protective cover (must be connected)
L	Drain port	Size	M14 × 15; 13 mm deep
		Standard	DIN 3852
		State on delivery	With protective cover (must be connected)

Sizes 11 … 18

Mounting flange H

Mounting flange C

1)	Flange ISO 3019-1

Drive shafts

1)	Involute spline according to ANSI B92.1a, 30° pressure angle, flat root, side fit, tolerance class 5

Dimensions

Mounting flange	N1	N2	N3
H	126.6	144.2	19
C	‒	151.8	24

Ports

Size			11	14	16	18
A, B	Working port	Size	M18 × 15; 12 mm deep
		Standard	DIN 3852
		State on delivery	With protective cover (must be connected)
L	Drain port	Size	M14 × 15; 12 mm deep
		Standard	DIN 3852
		State on delivery 1)	With protective cover (observe installation instructions)
L1	Drain port	Size	M14 × 15; 12 mm deep
		Standard	DIN 3852
		State on delivery 1)	Plugged (observe installation instructions)

1)	Unless otherwise specified. Other layouts on request.

Sizes 23 and 28