Accessories for R987412696

PUMP CONTROL SYSTEM SYDFE1-2X/028R-PKC62N00-1834-A0X0XXX

Manufacturer: Bosch Rexroth

Material #: R987412696

Model : SYDFE1-2X/028R-PKC62N00-1834-A0X0XXX

$8,121.00 USD

More are expected on September 25, 2024

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Status: This product is temporarily out of stock.

Qty: Delivered as early as September 25, 2024 when ordered in

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PUMP CONTROL SYSTEM SYDFE1-2X/028R-PKC62N00-1834-A0X0XXX

Pump A10VSO BR31 with external analog electronics

Pump system, maximum operating pressure 280 bar, size 28, functionality: Swivel angle, pressure control, master/slave

Unpacked Weight: 21 kg

A SYDFE1-2X control system is used for the electro-hydraulic control of swivel angle, pressure and power (partially optional, see type key pilot control and preload valve and ordering code) of an axial piston variable displacement pump.
The control system consists of the following components: Axial piston variable displacement pump A10VSO.../31 VT-DFP-.2X proportional valve as pilot valve including inductive position transducer for valve position sensing. External control electronics VT 5041-3X for realizing all electric functions necessary for the SYDFE1-2X (separate order) Position transducer for sensing the swivel angle Pressure transducer with suitable signal level and dynamics (optionally HM 20, otherwise separate order) Preload valve with integrated pressure relief function SYDZ (optional)

1	Swash plate
2	Pilot valve
3	Counter piston
4	Actuating piston
5	Spring
6	Inductive position transducer for valve position
7	Swivel angle position sensor
8	Proportional solenoid
9	Valve spool
10	Spring
15	Drive shaft
16	Connection flange
17	Subplate, optionally with through-drive

Own supply
Component series 2X
28 cm³
Nominal pressure 280 bar
Communication: analog
Maximum operating pressure 280 bar
External control electronics
Function: Pressure, swivel angle control, torque limitation, master-slave
Size 18 … 100
With axial piston variable displacement pump A10VSO.../31

Data Sheet	Download Data Sheet
Manual	Download Manual
Manual	Download Manual
Manual	Download Manual

Max. pressure	280
Electrical connection description	Valve connector, valve position transducer connector, SWA connector
Size	28
Speed min.	250
Productgroup ID	9,10,11,12,13,14
Speed max.	3000
Mounting flange	ISO 2-hole
Max. flow	84
Displacement type	variable
Direction of rotation	clockwise rotation
Supply voltage	24 VDC
Through-drive	without
Weight	21
Seals	FKM
Connectivity	Analog
Hydraulic fluid	HLP
Hydraulic fluid	HLP

01		02	03		04	05	06	07	08		09		10	11	12	13		14
SYDFE1-2X	/			–	P			12		–		–		0	XX0XX		–	*

Pump of the SYDFE control system
Series
01	Control system for external analog electronics (separate order)								SYDFE1-2X
01	Pump combinations (see order example)								SY2DFE.-2X, SY3DFE.-2X
Size			018	028	045	071	100	140
02	Displacement cm³		18	28	45	71	100	140
Direction of rotation looking at the drive shaft
03	Right		●	●	●	●	●	●	R
03	Left		●	●	●	●	●	●	L
Hydraulic fluid
04	Mineral oil according to DIN 51524 (HL/HLP)		●	●	●	●	●	●	P
Drive shaft variant
05	Cylindrical with fitting key DIN 6885 (not in connection with through-drive)		Ø18	Ø22	Ø25	Ø32	Ø40	Ø45	P
	Splined shaft profile SAE J 744 1)		3/4"	–	–	–	1 1/2"	1 3/4"	S
	Splined shaft profile SAE J 744 (higher torque)		–	7/8"	1"	1 1/4"	–	–	R
Connection flange (centering in mm)			Ø18	Ø22	Ø25	Ø32	Ø40	Ø45
06	ISO 2-hole		80	100	100	125	125	–	A
	ISO 4-hole		–	–	–	–	–	180	B
	SAE 2-hole		82,55	101,6	101,6	127	127	–	C
	SAE 4-hole		–	–	–	–	–	152,4	D
Port for working lines pressure port B and suction port S
07	SAE, laterally opposite, mounting thread metric		●	●	●	●	●	●	12
Through-drive (All through-drives with single pumps come without a hub and are operationally safe, provided with an end cover)
08	Without through-drive		●	●	●	●	●	●	N00
	Centering	Attachment pump (examples) 2)
	ISO Ø100 mm	A10VSO..31 NG28/45	–	●	●	●	●	●	KD3
	ISO Ø125 mm	A10VSO..31 NG71/100	–	–	–	●	●	●	KD5
	ISO Ø180 mm	A10VSO..31 NG140	–	–	–	–	–	●	KD7
	SAE Ø82.55 mm	A10VSO..31 NG18, PGF2, PGH2, PGH3, AZPF	●	●	●	●	●	●	KC1
	SAE Ø101.6 mm	PGH4, 1PF2G3, PGF3	–	●	●	●	●	●	KC3
	SAE Ø127 mm	PGH5	–	–	–	●	●	●	KC5
	SAE Ø152.4 mm	A10VO140	–	–	–	–	–	●	KC6
Base pump variant
09	Standard (internal pilot oil)	●	●	●	●	●	●	●	0000
	External supply	–	●	●	●	●	●	–	0479
	External supply + regenerative operation	–	–	–	–	●	●	●	0487
Pilot and preload valve of the SYDFE1 control system
Spool design
10	Standard (NG28 ... NG140)								A
	2-groove spool (NG18 ... NG140, only for replacement requirement)								B
	4-groove spool (NG18)								C
Installation orientation, solenoid
11	Mating connector is orientated radially to the pump axis								0
12	Features currently not used								X0XX
Preload valve with integrated pressure limitation
13	Pressure limitation 200 bar (tolerance ± 8 bar)								1
	Pressure limitation 250 bar (tolerance ± 10 bar)								2
	Pressure limitation 300 bar (tolerance ± 12 bar)								3
	Without preload valve								X
14	Further details in the plain text e. g. SO variant								*

1)	ANSI B92.1a-1976, 30° pressure angle, flat root, side fit, tolerance class 5.
2)	Also observe the conditions for the attachment pumps.

●	available
-	not available

Ordering code pump combination SYHDFE1-2X

01		02		03		04		05
SY2HDFE1-2X	/		–		/		+

01	2-fold pump	SY2HDFE1-2X
02	Size of the main pump 1)
03	Size of the attachment pump or pump abbreviation if the attachment pump is not SYHDFE (e.g. PGF) 1)
04	Material number without "R9" for the main pump or type designation if material number is not known
05	Material number without "R9" for the attachment pump or type designation if material number is not known

1)	Detailed information see type key

01		02		03		04
SY3HDFE1-2X	/		+		+

01	3-fold pump	SY3HDFE1-2X
02	Material number without "R9" for the main pump or type designation if material number is not known
03	Material number without "R9" for the attachment pump or type designation if material number is not known
04	Material number without "R9" for the attachment pump or type designation if material number is not known

Example of name plate of a pump combination

For enquiries regarding the control system, material number, production order number, serial number, and date of production are necessary.

Accessories	Material number	Data sheet
External control electronics VT 5041-3X/1 without power limitation, without swivel angle display	R901236404	30242
External control electronics VT 5041-3X/2 without power limitation, with swivel angle display	R901263598	30242
External control electronics VT 5041-3X/3 with power limitation, with swivel angle display	R901196678	30242
Mating connector for solenoid plug	R901017011	08006
Mating connector for position transducer of valve	R900023126	08006
Mating connector for position transducer of pump	R900013674
Pressure transducer HM 20-2X, measurement range 315 bar (4 ... 20 mA)	R901342029	30272
Pressure transducer HM 20-2X, measurement range 315 bar (0.1 ... 10 V)	R901342030	30272
Card holder VT 3002-1-2X/32D	R900020153	29928
Compact power supply unit VT-NE32-1X	R900080049	29929
More accessories
Accessories for through-drives		See Accessories
Torsionally flexible couplings for attachment to a standard electric motor		See Accessories

mechanic and hydraulic

Size				18	28	45	71	100	140
Displacement		Vg max	cm³	18	28	45	71	100	140
Speed 1)	maximum at Vg max	nnom	rpm	3300	3000	2600	2200	2000	1800
Speed 1)	maximum at Vg < Vg max	nmax zul	rpm	3900	3600	3100	2600	2400	2100
Minimum speed		nmin	rpm	50
Max. flow (displacement)	at nnom and Vg max	qV max	l/min	59.4	84	117	156	200	252
Max. flow (displacement)	with nE = 1500 rpm and Vg max	qvE max	l/min	27	42	68	107	150	210
Max. power (Δp = 280 bar)	at nnom and Vg max	P max	kW	27.7	39	55	73	93	118
Max. power (Δp = 280 bar)	with nE = 1500 rpm and Vg max	PE max	kW	12.6	20	32	50	70	98
Max. torque (Δp = 280 bar)		Tmax	Nm	80.1	125	200	316	445	623
Maximum permissible drive torque	Fitting key	Ttotal	Nm	88	137	200	439	857	1206
	Splined shaft S overall torque	Ttotal	Nm	124	-			1104	1620
	Max. admissible through-drive torque	TD	Nm	108	-			778	1266
	Splined shaft R overall torque	Ttotal	Nm	-	225	400	644	-
	Max. admissible through-drive torque	TD	Nm	-	176	365	548	-
Drive shaft load	max. admissible axial force	Fax max	N	700	1000	1500	2400	4000	4800
Drive shaft load	max. admissible radial force	Fq	N 2)	350	1200	1500	1900	2300	2800
Mass	Pump without through-drive incl. pilot valve	m	kg	14	17	23	35	47	62
	in addition, preload valve	m	kg	3.3			6.3
	in addition, in case of external supply	m	kg	2
Moment of inertia around drive axis			kg·m²	0.0009	0.0017	0.0033	0.0083	0.0167	0.0242
Filling quantity of the housing			l	0.4	0.7	1	1.6	2.2	3
Maximum admissible operating pressure		pmax	bar	280 3)				280
Operating pressure, min. (without load)	with preload valve	pmin	bar	≥ 1
	without preload valve	pmin	bar	≥ 20
	in case of external supply (20 bar) 4)	pmin	bar	> 10
Admissible inlet pressure		p	bar	0.8 ... 10
Hydraulic fluid				Mineral oil (HL, HLP) to DIN 51524
Hydraulic fluid temperature range		ϑ	°C	-20 … +70
Maximum admissible degree of contamination of the hydraulic fluid according to ISO 4406				Class 18/16/13 (for particle size ≤ 4/6/14 μm)

1)	The values are applicable at an absolute pressure of 1 bar at the suction opening S. With a reduction of the displacement or an increase in the inlet pressure, the speed can be increased according to the following characteristic curve. With a reduced inlet pressure, the speed is to be reduced.
2)	In case of higher radial forces, please consult us
3)	In case of higher pressures, please consult us
4)	In continuous operation; in case of operation below 10 bar, observe the notes

Notice:

For information on the environment simulation testing for the areas of EMC (electro-magnetic compatibility), climate and mechanical load, see data sheet 30030-U.

Control loop quality

Notes:

The specified values are only valid when using the system-related components specified in this data sheet. At pressures < 20 bar, higher tolerances have to be anticipated due to lower actuating forces.

	Swivel angle control	Pressure control 1)
Linearity tolerance	≤ 1.0 %	≤ 1.5 % (≤ 1.0 %)
Temperature error	≤ 0.5 % / 10 K	≤ 0.5 % / 10 K
Hysteresis	≤ 0.2 %	≤ 0.2 %
Repetition accuracy	≤ 0.2 %	≤ 0.2 %

1)	Without considering the pump pulsation.

For applications outside these parameters, please consult us!

Transition function with pressure command value step with spool design "A"

The specified curve shapes and control times refer to a drive speed of 1500 rpm and are only reached with an optimization of the pressure controller.

T 95% in ms with a connected hydraulic fluid volume (lines and actuators)

Hydraulic fluid volume in l	T95% in ms
< 5	150
5 ... 10	200
15 ... 15	250

Transition function with swivel angle command value step with spool design "A"

Size 18, 28, 45, 71 p = 20 bar

Size 18, 28, 45, 71 p = 50 bar

Size 100 p = 50 bar

Size 140 p = 50 bar

For pressures up to 40 bar, the values of the response times are greater.

Valve switch-off in case of error	Jumper
Valve switch-off in case of error	J1
Active	OFF *
Inactive	ON
* compatible with VT 5041-2X

Schematic diagram: Actuating system supplied internally

1)	Separate order
2)	Optional

Schematic diagram: Actuating system supplied externally

The representation shows an example with integrated electronics. The external supply of the actuating system is also possible with external electronics.

1)	The use of an anti-cavitation valve (check valve with 0.2 bar spring) is essential in order to prevent dry-running in the error case.

2)	Pressure transducer	Mounting options	Comment
	HM 20-2X/315-F-C13-0.5 (cable version)	P	Only in connection with actual pressure value input "F"
	HM 20-2X/...-.-K35 (connector version)	P1	Preferably close to the actuator

	3) Maximum pressure limitation must be provided by the customer!
	4) Observe upper limit for external pilot oil pressure! (see operating instructions), recommendation: 20 bar absolute.

Important notes on external supply:

In the case of an actuating system with external supply, the pump adjustment will - in case of voltage failure - not switch to zero stroke but to the negative stop (displacement of 100 % flow from the system to the tank). With an active fault message, it is imperative that the machine control reacts (e. g. switching off the drive motor of the pump, interrupting the external supply of the actuating system). The command values for pressure and flow must always be greater than zero (pcommand ≥ 3 bar, αcommand ≥ 5 %) as due to drift or tolerances, there is no exact "zero" pressure or "zero" swivel angle. Under unfavorable conditions, smaller command value presettings can lead to cavitation. The actual pressure value must not be less than 10 bar for more than 10 minutes (lubrication).

Leakage compensation	Jumper
Leakage compensation	J6	J7
Off	OFF	OFF
4 %	OFF	ON
6 %	ON	OFF
10 %	ON	ON

Valve command value monitoring	Jumper
Valve command value monitoring	J9
On	ON
Off *	OFF

Diagnosis LEDs
For a description, see block diagram and the operating instructions 30011-B

Regenerative operation	Jumper
Regenerative operation	J3	J5
On	ON	OFF
Off	OFF	ON

Function pin 18a **	Jumper
Function pin 18a **	J4
Pressure control On/Off	OFF
Master/slave On/Off	ON
** Only for versions without power limitation (VT 5041-3X/1-0 and VT 5041-3X/2-0)

Selection for analog input at pin 18c	Jumper
	J2
	Bridge
Actual master swivel angle value	1-2
external power limitation	2-3

Pressure controller p amplification	Switch S3		Jumper
Pressure controller p amplification	.7	.8	J11
8,0	OFF	OFF	OFF
4,8	OFF	ON	OFF
4,0	OFF	OFF	ON
3,0	OFF	ON	ON
2,4	ON	OFF	ON
2,0	ON	ON	ON

Volume adjustment of pressure controller
Input switch TD = OFF	Switch S3
Input switch TD = OFF	.1	.2	.3
≤ 5,0 l	OFF	OFF	OFF
7,5 l	OFF	ON	OFF
10,0 l	ON	ON	OFF
15,0 l	ON	OFF	ON
20,0 l	OFF	ON	ON
25,0 l	ON	ON	ON

Input switch TD = ON	Switch S3
Input switch TD = ON	.4	.5	.6
12,5 l	OFF	OFF	OFF
30,0 l	OFF	ON	OFF
45 l	ON	ON	OFF
60 l	ON	OFF	ON
75 l	OFF	ON	ON
90 l	ON	ON	ON

Actual pressure value amplification	Jumper
Actual pressure value amplification	J10
1-fold	OFF
2-fold	ON

Signal adjustment of actual pressure value		Switch S2
Signal adjustment of actual pressure value		.1	.2	.3	.4	.5	.6	.7	.8
V	0...10 V	OFF	OFF	OFF	OFF	OFF	OFF	ON	ON
E	1...10 V	OFF	OFF	OFF	OFF	ON	OFF	OFF	ON
D	0...5 V	OFF	OFF	ON	ON	OFF	OFF	ON	ON
F	0,5...5 V	OFF	OFF	ON	ON	ON	OFF	OFF	ON
B	0...20 mA	ON	ON	OFF	OFF	OFF	OFF	ON	ON
C	4...20 mA	ON	ON	OFF	OFF	ON	ON	OFF	OFF

Explanations:
ON	Bridge closed
OFF	Bridge open
	Factory setting

For the meaning of the measuring sockets, display and adjustment elements (potentiometer) on the front plate, see front plate.

VT 5041-3X/1-0

LED displays
Ub (green)	Supply voltage available
En. (green)	Enable available
Err. (red)	Fault/collective error
p-control (yellow)	Pressure control enabled
	Swivel angle control enabled
FE1 contr. (yellow)	Pressure controller disabled
Adjustment elements (potentiometer)
R1	Zero point of actual pressure value
R2	Actual pressure value amplification
R6	Zero point of actual valve value
R8	Zero point of actual swivel angle value
R9	Amplification of actual swivel angle value
Measuring sockets (Ri = 2 kΩ)
1	Pressure command value 0…+10 V
2	Actual pressure value 0…+10 V
3	Swivel angle command value ±10 V
4	Swivel angle command value
5	Valve command value ±10 V
6	Actual valve value ±10 V
7	Active swivel angle command value ±10 V
8	Power limit 0…+10 V
⊥	Reference for measured values
⊥	Reference for measured values
Display (measuring instrument)
	Display of actual swivel angle value in %

VT 5041-3X/2-0

LED displays
Ub (green)	Supply voltage available
En. (green)	Enable available
Err. (red)	Fault/collective error
p-control (yellow)	Pressure control enabled
	Swivel angle control enabled
FE1 contr. (yellow)	Pressure controller disabled
Adjustment elements (potentiometer)
R1	Zero point of actual pressure value
R2	Actual pressure value amplification
R6	Zero point of actual valve value
R8	Zero point of actual swivel angle value
R9	Amplification of actual swivel angle value
Measuring sockets (Ri = 2 kΩ)
1	Pressure command value 0…+10 V
2	Actual pressure value 0…+10 V
3	Swivel angle command value ±10 V
4	Swivel angle command value
5	Valve command value ±10 V
6	Actual valve value ±10 V
7	Active swivel angle command value ±10 V
8	Power limit 0…+10 V
⊥	Reference for measured values
⊥	Reference for measured values
Display (measuring instrument)
	Display of actual swivel angle value in %

VT 5041-3X/3-0

LED displays
Ub (green)	Supply voltage available
En. (green)	Enable available
Err. (red)	Fault/collective error
p-control (yellow)	Pressure control enabled
	Swivel angle control enabled
Power Limiter (yellow)	Power limitation active
Adjustment elements (potentiometer)
R1	Zero point of actual pressure value
R2	Actual pressure value amplification
R3	Setting of the power limit
R6	Zero point of actual valve value
R8	Zero point of actual swivel angle value
R9	Amplification of actual swivel angle value
Measuring sockets (Ri = 2 kΩ)
1	Pressure command value 0…+10 V
2	Actual pressure value 0…+10 V
3	Swivel angle command value ±10 V
4	Swivel angle command value
5	Valve command value ±10 V
6	Actual valve value ±10 V
7	Active swivel angle command value ±10 V
8	Power limit 0…+10 V
⊥	Reference for measured values
⊥	Reference for measured values
Display (measuring instrument)
	Display of actual swivel angle value in %

Electrical properties of the SYDFE1 see VT 5041

The unit dimensions of the base pump (axial piston variable displacement pump A10VSO.../31) are contained in data sheet 92711.

Size 18 … 140

(Shaft design "S”; without through-drive “N00”)
Dimensions in mm

(representation Size 71)

									Dimensions with base pump variant "0479" or "0487"
Size	A1	A2	A3	A4	A5	A6	A6 I	A6 II	A7 I	A7 II	A7 III
Size	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm
18	98	110	161	158	63	178	63	115	196	125	100
28	106	110	171	158	63	195	80	115	206	135	115
45	112	110	181	158	63	205	90	115	216	145	125
71	124	110	195	158	63	254	104	150	230	159	150
100	129	110	200	158	63	247	100	147	235	164	150
140	140	110	213	143	78	257	110	147	248	182	150

Combination pumps

Attachment pump	Main pump
	A10VSO 18				A10VSO 28				A10VSO 45				A10VSO 71				A10VSO 100				A10VSO 140
	A1	A2	A3	A4	A1	A2	A3	A4	A1	A2	A3	A4	A1	A2	A3	A4	A1	A2	A3	A4	A1	A2	A3	A4
	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm
A10VSO 18	164	204	349	399	164	204	349	399	184	229	374	424	217	267	412	462	275	338	483	533	275	350	495	554
A10VSO 28					164	204	368.5	410	184	229	393.5	435	217	267	431.5	473	275	338	502.5	544	275	350	514	556
A10VSO 45									184	229	413	453	217	267	451	491	275	338	522	562	275	350	534	574
A10VSO 71													217	267	484	524	275	338	555	595	275	350	567	609
A10VSO 100																	275	338	613	664	275	350	625	679
A10VSO 140																					275	350	625	688

Ports

Size			18	28	45	71	100	140
B:	Working line (SAE J518) 1)
	Size		3/4"	3/4"	1"	1"	1 1/4"	1 1/4"
	Mounting thread (DIN 13)		M10 x 1.5; 17 deep			M14 x 2; 19 deep
	Maximum pressure 2)	bar	350
S:	Suction line (SAE J518) 1)
	Size		1"	1 1/4"	1 1/2"	2"	2 1/2"	2 1/2"
	Mounting thread (DIN 13)		M10 x 1.5; 17 deep		M12 x 1.75; 20 deep		M12 x 1.75; 17 deep
	Maximum pressure 2)	bar	10

1)	Dimensions according to SAE J518 only, metric mounting thread deviating from the standard.
2)	Application-specific short-time pressure peaks may occur. Please observe when selecting measuring devices and fittings. Specified pressures are in bar absolute.

Notes regarding size 71:

With pressure connection “B” of size 71, two SAE mounting connections rotated by 90° are available. SAE 1 1/4″ standard pressure series, 207 bar , for pressures up to 250 bar or SAE 1″ standard pressure series, 344 bar, for pressures up to 350 bar. For operating pressures exceeding 250 bar, the pressure flange SAE 1” must be used.

Dimensions in mm

Hubs for through-drives

Hubs for the combination of single pumps or the combination of SYDFE with other pumps. Observe that the attachment pump has a splined shaft SAE J744 with the specified diameter.

The following conditions apply to the attachment pumps listed in the table:

SYDFE and A10VSO with shaft S or R Internal gear pump PGH with shaft R, flange U2, see data sheet 10223 Internal gear pump PGF3 with shaft J, flange U2, see data sheet 10213 External gear pump AZPF with shaft R, front cover R, see data sheet 10089

Observe that the through-drive of the main pump and the flange of the attachment pump (see type key pump) are identical. Check in the current data sheet of the gear pump whether the shaft ends have the specified dimensions.

Main pump SYDFE or A10VSO...						Attachment pump
Size 18	Size 28	Size 45	Size 71	Size 100	Size 140	Ø shaft	Pump type (examples)
R902436099	R902436199	R902436100	R902436200	R902436201	R902436202	3/4" 19-4 (SAE A-B)	SYDFE-2X, A10VSO..31 Size 018 shaft S
	R902436098	R902436084	R902436083	R902436101	R902436102	7/8" 22-4 (SAE B)	SYDFE-2X, A10VSO..31 Size 028 shaft R; PGF3
		R902436103	R902436104	R902436105	R902436204	1" 25-4 (SAE B-B)	SYDFE-2X, A10VSO..31 Size 045 shaft R; PGH4
			R902436085	R902436105	R902436106	1 1/4" 32-4 (SAE C)	SYDFE-2X, A10VSO..31 Size 071 shaft R
				R902436086	R910943555	1 1/2" 38-4 (SAE C-C)	SYDFE-2X, A10VSO..31 Size 100 shaft S; PGH5
				R910943565	R910932172	1 3/4" 44-4 (SAE D)	SYDFE-2X, A10VSO..31 Size 140 shaft S
R910943528	R910986299	R910943529	R91094345	R910943560	R910943551	5/8" 16-4 (SAE A)	1PF2G2, PGF2, PGH2, PGH3, AZPF

Through-drives

KD3

Flange ISO 100, 2-hole for the attachment of

SYDFE.-2X (size 28 and size 45, flange A) A10VSO..31 (size 28 and size 45, flange A, see data sheet 92711)