TOOTHED RING PUMP PGZ4-1X/040RA07VE4

Manufacturer: Bosch Rexroth

Material #: R901230028

Model : PGZ4-1X/040RA07VE4

***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 PGZ4-1X/040RA07VE4 (R901230028) is a gerotor pump renowned for its constant displacement and exceptional performance in cooling, filtration, and lubrication circuits. This pump is designed to accommodate a wide range of viscosities and speeds, ensuring versatility across various industrial applications. With its robust aluminum housing and FKM seals, it is built to handle maximum pressures up to bar with ease while maintaining a low noise level and minimal pulsation. The PGZ4-1X/040RA07VE4 pump features a size of cm³, indicating the volume displaced per revolution, which contributes to its efficiency in open circuit operations. The speed range of the pump varies from a minimum speed of min⁻¹ to a maximum speed of max⁻¹, supporting a maximum flow rate that ensures optimal performance for the intended applications. Its clockwise rotation direction and hole mounting flange conform to ISO and VDMA standards for secure installation. This model's superior design includes an inner rotor driven by the shaft through a driving disk, engaging with the gerotor to facilitate fluid intake in the suction range and effectively transferring it to the pressure port during operation. The cycloid contour tooth profile allows for extended meshing lengths, further enhancing flow stability and reducing operational noise. Constructed with high-quality materials such as steel for the shaft, inner rotor, gerotor, and driving disk; aluminum for the flange housing; and cast iron for the cover—this pump promises longevity and wear-free performance when used as intended. Additionally, its self-priming capability underscores its reliability in various industrial scenarios without requiring throughdrive. In summary, the Bosch Rexroth PGZ4-1X/040RA07VE4 gerotor pump is an essential component for systems requiring dependable low-pressure fluid transfer. It excels in environments such as plastic processing machinery, machine tools, presses, wind turbines, or any application where cooling or filtering at low pressures is critical.

$2,059.00 USD

More are expected on May 26, 2025

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Status: This product is temporarily out of stock.

Qty: Delivered as early as May 26, 2025 when ordered in

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TOOTHED RING PUMP PGZ4-1X/040RA07VE4

Gerotor pump, size 40 cm³, pressure 15 bar for cooling or filter circuits

For cooling, filtration and lubrication circuits. Suitable for a broad viscosity and speed range. Low noise and low pulsation level.

Unpacked Weight: 6.02 kg

Low-pressure pump with fixed displacement Very low operating noise Suitable for broad viscosity and speed ranges Excellent suction characteristics Can be combined with axial piston pumps, internal gear pumps and vane pumps Use for: Cooling, filter or lubricant circuits with low pressures in industrial or mobile applications, e.g. plastics processing machines, machine tools, presses and wind turbines.

Set-up

Hydraulic pumps of type PGZ type are gerotor pumps with constant displacement.

They basically comprise of: Flange housing (1), shaft (2), the displacer element inner rotor (3) and gerotor (4) as well as driving disk (5) and cover (6).

Suction and displacement procedure

Via the driving disk, the shaft drives the inner rotor in the indicated direction of rotation. The inner rotor cogs with the gerotor to turn it.

The tooth clearances opening in the suction range (S) suck in the hydraulic fluid. The separation of suction and pressure range is implemented on the opposite side of the meshing area (Z) by means of a radial gap (R) created by the

tooth profile of the gerotor and the inner rotor sliding against each other.

Within the pressure range (P), the hydraulic fluid is pumped into the pressure port by means of the chambers becoming smaller.

Properties

The toothing with cycloid contour has a large meshing length. Filling and displacement areas cover a large angle of rotation. This allows for little flow pulsation and thus very low operating noise.

The shaft and the displacer are supported by a slide bearing and work in a wear-free manner when they are used as intended.

Gerotor pumps PGZ are self-priming.

Materials used

Flange housing (1): aluminum Shaft (2), inner rotor (3), gerotor (4) and driving disk (5): steel Cover (6): Cast iron

Hydraulic pumps of type PGZ type are gerotor pumps with constant displacement. Via a driving disk, the shaft drives the inner rotor in the indicated direction of rotation. The inner rotor cogs with the gerotor to turn it. The tooth clearances opening in the suction range suck in the hydraulic fluid. The separation of suction and pressure range is implemented on the opposite side of the meshing area by means of a radial gap created by the tooth profile of the outer and the inner rotor sliding against each other. Within the pressure range, the hydraulic fluid is pumped into the pressure port by means of the chambers becoming smaller.

Aluminum housing
Gerotor pump with constant displacement
For industrial applications in open circuit
FKM seals
Size 20 … 140
Maximum operating pressure 15 bar
Frame size 4, 5

Data Sheet	Download Data Sheet
3D CAD	Download 3D CAD
Manual	Download Manual
Manual	Download Manual
Manual	Download Manual
Manual	Download Manual
Manual	Download Manual

Max. pressure	15
Shaft end	Cylindrical Ø 25 mm with fitting key, ISO 3019-2
Size	40
Speed min.	200
Productgroup ID	9,10,11,12,13,14
Speed max.	3000
Mounting flange	2-hole mounting flange 100A2HW according to ISO 3019-2
Max. flow	120
Displacement type	constant
Direction of rotation	clockwise rotation
Through-drive	without
Weight	6.02
Seals	FKM
Hydraulic fluid	HLP,HLPD,HVLP,HVLPD

01	02		03		04	05	06	07	08	09	10
PGZ		–	1X	/		R		07	V		*

Type
01	Gerotor pump , low-pressure			PGZ
Frame size
02	BG4			4
	BG5			5
Component series
03	Component series 10 ... 19 (10 ... 19: unchanged installation and connection dimensions)			1X
Size
04	BG4	NG	Displacement/rotation
		20	21,0 cm3	20
		32	33,4 cm3	32
		40	42,1 cm3	40
		50	52,0 cm3	50
		63	64,4 cm3	63
		80	84,2 cm3	80
	BG5	63	64,4 cm3	63
		80	84,2 cm3	80
		100	105,3 cm3	100
		140	136,3 cm3	140
Direction of rotation
05	clockwise rotation (looking at the shaft end)			R
Shaft design
06	cylindrical			A
	SAE involute gear 11T			T
	SAE involute gear 13T			R
Line connection
07	SAE flange standard pressure series			07
Seal material
08	FKM seals			V
Flange design
09	ISO 4-hole mounting flange according to ISO 3019-2 and VDMA 24560			E4
	SAE 2-hole mounting flange			U2
	ISO 2-hole mounting flange according to ISO 3019-2, secondary pump for through-drive KB2			B2
	ISO 2-hole mounting flange according to ISO 3019-2, secondary pump for through-drive KB3			B3
Type of connection
10	further details in the plain text e.g. special versions			*

Preferred types PGZ-1X
Type	NG	Part number
PGZ4-1X/020RA07VE4		R901230020
PGZ4-1X/032RA07VE4		R901230024
PGZ4-1X/040RA07VE4		R901230028
PGZ4-1X/050RA07VE4		R901230032
PGZ4-1X/063RA07VE4		R901230036
PGZ4-1X/080RA07VE4		R901230040
PGZ5-1X/100RA07VE4		R901230052
PGZ5-1X/140RA07VE4		R901230056

For the possible flange shaft configurations, please refer to the selection tables.

Frame size				4						5
Size				20	32	40	50	63	80	63	80	100	140
Mounting type				ISO 4-hole mounting flange according to ISO 3019-2 and VDMA 24560 SAE 2-hole mounting flange ISO 2-hole mounting flange according to ISO 3019-2, secondary pump for through-drive KB2 ISO 2-hole mounting flange according to ISO 3019-2, secondary pump for through-drive KB3
Line connections				Flange connection
Shaft load				Radial and axial forces cannot be transmitted
Direction of rotation				Clockwise rotation (looking at the shaft end)
Drive speed		n	rpm	200 ... 3,000				200 ... 2,300	200 ... 1,800	200 ... 3,000	200 ... 2,300	200 ... 1,800	200 ... 1,500
Displacement		Vg	cm³	21	33.4	42.1	52	64.4	84.2	64.4	84.2	105.3	136.3
Minimum drive power required	at Δp ≈ 1 bar, n ≈ 1450 rpm		kW	0.75	1.1							1.5
Minimum drive power required	at Δp ≈ 10 bar, n ≈ 1450 rpm		kW	1.5	2.2			3				4	5.5
Flow, max. 1)		qV	l/min	28	46	58	71	88	116	88	116	144	186
Operating pressure, absolute 2)	Inlet	pmin-max	bar	0.7 ... 2
Nominal pressure, permanent	Outlet	pN	bar	15
Mass		m	kg	4.7	5.3	5.6	6	6.7	7.8	6.6	7.7	8.9	10.7

1)	Measured n = 1450 rpm, p = 10 bar and v = 30 mm²/s
2)	Short-time, during start 0,5 bar

Hydraulic fluid

Hydraulic fluid
Permissible hydraulic fluid 1)		Mineral oil (HLP) to DIN 51524-2
Hydraulic fluid temperature range 2)	°C	-20 … +80
Ambient temperature range	°C	-20 … +80
Viscosity range	mm²/s	10 … 2,000
Maximum admissible degree of contamination of the hydraulic fluid 3)		Class 21/18/15 according to ISO 4406 (c)

1)	Other hydraulic fluids on request
2)	Observe the admissible viscosity range!
3)	The cleanliness classes specified for the components must be adhered to in hydraulic systems. Effective filtration prevents faults and simultaneously increases the life cycle of the components. For the selection of the filters, see www.boschrexroth.com/filter.

For applications outside these parameters, please consult us!

Frame sizes 4 and 5, type...VE4

PGZ 4-1X/ … RA07VE4

PGZ 5-1X/ … RA07VE4

Drive shaft cylindrical,

4-hole mounting flange according to ISO 3019-2 and VDMA 24560

Dimensions in mm

Type	NG	Part number	L1	L2	H1	H2	S1)	P1)
PGZ4-1X/020RA07VE4		R901230020	116,5 mm	42,5 mm	77,4 mm	79,6 mm	1 1/2“	1“
PGZ4-1X/032RA07VE4		R901230024	121,5 mm	42,5 mm	77,4 mm	79,6 mm	1 1/2“	1“
PGZ4-1X/040RA07VE4		R901230028	125 mm	42,5 mm	77,4 mm	79,6 mm	1 1/2“	1“
PGZ4-1X/050RA07VE4		R901230032	129 mm	42,5 mm	77,4 mm	79,6 mm	1 1/2“	1“
PGZ4-1X/063RA07VE4		R901230036	134 mm	42,5 mm	77,4 mm	79,6 mm	1 1/2“	1“
PGZ4-1X/080RA07VE4		R901230036	142 mm	42,5 mm	77,4 mm	79,6 mm	1 1/2“	1“
PGZ5-1X/063RA07VE4		R901230044	134 mm	48,5 mm	72,9 mm	76,1 mm	2“	1 1/4“
PGZ5-1X/080RA07VE4		R901230044	142 mm	48,5 mm	72,9 mm	76,1 mm	2“	1 1/4“
PGZ5-1X/100RA07VE4		R901230052	150,5 mm	48,5 mm	72,9 mm	76,1 mm	2“	1 1/4“
PGZ5-1X/140RA07VE4		R901230056	163 mm	48,5 mm	72,9 mm	76,1 mm	2“	1 1/4“

1)	For the exact dimensions see Connections

Frame sizes 4 and 5, type ...VU2

PGZ 4-1X/ … RT07VU2

PGZ 5-1X/ … RT07VU2

Drive shaft geared,

SAE 2-hole mounting flange

Dimensions in mm

Type	NG	Part number	L1	L2	H1	H2	S1)	P1)
PGZ4-1X/020RT07VU2		R901230021	116,5 mm	42,5 mm	77,4 mm	79,6 mm	1 1/2“	1“
PGZ4-1X/032RT07VU2		R901230025	121,5 mm	42,5 mm	77,4 mm	79,6 mm	1 1/2“	1“
PGZ4-1X/040RT07VU2		R901230029	125 mm	42,5 mm	77,4 mm	79,6 mm	1 1/2“	1“
PGZ4-1X/050RT07VU2		R901230033	129 mm	42,5 mm	77,4 mm	79,6 mm	1 1/2“	1“
PGZ4-1X/063RT07VU2		R901230037	134 mm	42,5 mm	77,4 mm	79,6 mm	1 1/2“	1“
PGZ4-1X/080RT07VU2		R901230041	142 mm	42,5 mm	77,4 mm	79,6 mm	1 1/2“	1“
PGZ5-1X/063RT07VU2		R901230045	134 mm	48,5 mm	72,9 mm	76,1 mm	2“	1 1/4“
PGZ5-1X/080RT07VU2		R901230049	142 mm	48,5 mm	72,9 mm	76,1 mm	2“	1 1/4“
PGZ5-1X/100RT07VU2		R901230053	150,5 mm	48,5 mm	72,9 mm	76,1 mm	2“	1 1/4“
PGZ5-1X/140RT07VU2		R901230057	163 mm	48,5 mm	72,9 mm	76,1 mm	2“	1 1/4“

1)	For the exact dimensions see Connections

Frame sizes 4 and 5, type ...VB2

PGZ 4-1X/ … RT07VB2

PGZ 5-1X/ … RT07VB2

Drive shaft geared,

ISO 2-hole mounting flange according to ISO 3019-2

(secondary pump for through-drive KB2)

Dimensions in mm

Type	NG	Part number	L1	L2	H1	H2	S1)	P1)
PGZ4-1X/020RT07VB2		R901230022	116,5 mm	42,5 mm	77,4 mm	79,6 mm	1 1/2“	1“
PGZ4-1X/032RT07VB2		R901230026	121,5 mm	42,5 mm	77,4 mm	79,6 mm	1 1/2“	1“
PGZ4-1X/040RT07VB2		R901230030	125 mm	42,5 mm	77,4 mm	79,6 mm	1 1/2“	1“
PGZ4-1X/050RT07VB2		R901230034	129 mm	42,5 mm	77,4 mm	79,6 mm	1 1/2“	1“
PGZ4-1X/063RT07VB2		R901230038	134 mm	42,5 mm	77,4 mm	79,6 mm	1 1/2“	1“
PGZ4-1X/080RT07VB2		R901230042	142 mm	42,5 mm	77,4 mm	79,6 mm	1 1/2“	1“
PGZ5-1X/063RT07VB2		R901230046	134 mm	48,5 mm	72,9 mm	76,1 mm	2“	1 1/4“
PGZ5-1X/080RT07VB2		R901230050	142 mm	48,5 mm	72,9 mm	76,1 mm	2“	1 1/4“
PGZ5-1X/100RT07VB2		R901230054	150,5 mm	48,5 mm	72,9 mm	76,1 mm	2“	1 1/4“
PGZ5-1X/140RT07VB2		R901230058	163 mm	48,5 mm	72,9 mm	76,1 mm	2“	1 1/4“

1)	For the exact dimensions see Connections

Frame sizes 4 and 5, type ...VB3

PGZ 4-1X/ … RR07VB3

PGZ 5-1X/ … RR07VB3

Drive shaft geared,

ISO 2-hole mounting flange according to ISO 3019-2

(secondary pump for through-drive KB3)

Dimensions in mm

Type	NG	Part number	L1	L2	H1	H2	S1)	P1)
PGZ4-1X/020RR07VB3		R901230023	116,5 mm	42,5 mm	77,4 mm	79,6 mm	1 1/2“	1“
PGZ4-1X/032RR07VB3		R901230027	121,5 mm	42,5 mm	77,4 mm	79,6 mm	1 1/2“	1“
PGZ4-1X/040RR07VB3		R901230031	125 mm	42,5 mm	77,4 mm	79,6 mm	1 1/2“	1“
PGZ4-1X/050RR07VB3		R901230035	129 mm	42,5 mm	77,4 mm	79,6 mm	1 1/2“	1“
PGZ4-1X/063RR07VB3		R901230039	134 mm	42,5 mm	77,4 mm	79,6 mm	1 1/2“	1“
PGZ4-1X/080RR07VB3		R901230043	142 mm	42,5 mm	77,4 mm	79,6 mm	1 1/2“	1“
PGZ5-1X/063RR07VB3		R901230047	134 mm	48,5 mm	72,9 mm	76,1 mm	2“	1 1/4“
PGZ5-1X/080RR07VB3		R901230051	142 mm	48,5 mm	72,9 mm	76,1 mm	2“	1 1/4“
PGZ5-1X/100RR07VB3		R901230055	150,5 mm	48,5 mm	72,9 mm	76,1 mm	2“	1 1/4“
PGZ5-1X/140RR07VB3		R901230059	163 mm	48,5 mm	72,9 mm	76,1 mm	2“	1 1/4“

1)	For the exact dimensions see Connections

Ports

Porting pattern suction port “S”

Dimensions in mm

Porting pattern pressure port “P”

Dimensions in mm

BG	Porting pattern / suction port S	D1	D2	S1	S2	Porting pattern / pressure port P	D3	D4	P1	P2
4	1 1/2“	Ø38,1 mm	M12; 21 mm	69,9 mm	35,7 mm	1“	Ø25,4 mm	M10; 16 mm	52,4 mm	26,2 mm
5	2“	Ø50,8 mm	M12; 21 mm	77,8 mm	42,9 mm	1 1/4“	Ø31,8 mm	M10; 18 mm	58,7 mm	30,2 mm

1. General information

This project planning information refers to the specific properties of the Rexroth PGZ.-1X gerotor pump. Comprehensive general information and suggestions are contained in the Hydraulics Trainer, volume 3 "Project planning information and design of hydraulic systems", RE 00281.

1.1 Intended use

Rexroth gerotor pumps are intended for use in cooling, filter and lubricating circuits in machine and plant construction. During project planning, the basic principles of the EU Machinery Directive or comparable national regulations outside the EU must be observed. They must not be used in potentially explosive environments in accordance with directive 94/9/EC (ATEX). Use as hydraulic motor is not admissible!

1.2 Technical data

The plant or machine manufacturer must ensure compliance with the admissible technical data and operating conditions. The pump itself does not contain a device to prevent operation outside the admissible data.

All specified technical performance features are average values and apply with the specified boundary conditions. In case of modifications to the basic conditions (e.g. viscosity), the technical data may change as well. Distribution corresponding to the relevant state-of-the-art is possible.

Operating the pump outside of the admissible Technical data is possible to a certain extent, however, this requires the explicit written approval by Bosch Rexroth.

2. Hydraulic project planning

2.1 Place of installation

When installing the pump more than 10 m below the tank, the reduction of the inlet pressure to the maximum admissible value must be ensured by means of additional measures.

2.2 Suction line

The line cross-sections must be rated for the designed flows in a manner that an ideal suction speed of 0.6 to 1.2 m/s is achieved on average. The suction speed must not exceed a maximum value of 2 m/s.

The suction cross-sections at the pump itself are designed for the maximum flow and can therefore only be used as reference. In case of continuous operation with speeds lower than the admissible maximum speed, the suction tube diameter is to be dimensioned smaller than the suction port of the pump in accordance with the actual suction speed.

All in all, the suction line is to be designed so that the admissible input operating pressure is complied with (0.7 to 2 bar abs.)! Bends and the combination of the suction pipes of several pumps are to be avoided.

If suction filters must be used, make sure that the lowest admissible inlet operating pressure is not exceeded on the system side, even if the filter is contaminated.

Please ensure air tightness of the transitions and dimensional stability of the suction tube to the external air pressure.

The immersion depth of the suction pipe should be as large as possible. Dependent on the internal tank pressure, the viscosity of the hydraulic fluid and the flow ratios within the tank, no vortex must be formed even during maximum flow. Otherwise, there is the risk that air is sucked in.

We recommend selecting suction pipes according to AB 23-03.

Dimensions in mm

2.3 Pressure limitation

The PGZ gerotor pump does not comprise any device for compliance with the maximum operating pressure. Setting and limiting the admissible operating pressure has to be ensured on the system side.

3. Mechanical project planning

3.1 Disassembly and installation option

For disassembling and mounting the pump on the drive, accessibility has to be ensured on the system side. Screws of property class 8.8 or 10.9 have to be provided for mounting purposes.

3.2 Mounting

The screws must be accessible on the machine side so that the required tightening torque can be applied. The tightening torque of the screws is based on the operating conditions and involved elements of the

screw connection and has to be specified by the manufacturer in the power unit, machine or system project planning.

3.3 Required power unit functions

Hydraulic power units should at least be equipped with the following features:

Tanks, the internal pressure of which corresponds to the ambient pressure in accordance with the design, have to be equipped with breathing filters for pressure compensation purposes. The hydraulic fluid should only be filled in using filling connections excluding filling with unfiltered hydraulic fluid. The ingress of contamination or humidity must be avoided. In case of use in highly contaminated environments, the tank must to this end be pre-tensioned by means of air pressure. If cleansing of the external tank side is intended or to be expected during the period of use, tank fittings for pipes, lines, or hoses have to be selected, which ensure safe sealing against external pressurization with water jet.

3.4. Environmental conditions

When operating the pump in salt-containing or corrosive environments or when pressure loading with strongly abrasive substances is possible, it has to be ensured on the system side that the shaft seal ring and the sealing area of the shaft do not make direct contact with the environment and that the pump is provided with suitable corrosion protection.

3.5 Installation positions

B3

B5

V1

IM V2

4. Maintenance schedule and operational safety

For safe operation and a long life cycle of the pump, a maintenance schedule has to be developed for the power unit, the machine, or the system. The maintenance schedule must ensure that the intended or admissible operating conditions of the pump are complied with over the entire period of use.

In particular, compliance with the following operating parameters has to be ensured:

the required oil cleanliness the operating temperature range the hydraulic fluid filling level

Furthermore, the pump and the system have to be checked for modifications of the following parameters on a regular basis:

Vibrations Noise Temperature pump – hydraulic fluid in the tank Foam formation in the tank Leak-tightness Operating pressure for use in lubrication systems

Modifications of these parameters indicate wear of components (e.g. drive motor, coupling, pump, etc.). The cause must be identified and remedied immediately. In order to achieve high operational safety of the pump in the machine or system, we recommend checking the parameters mentioned above continuously and automatically

and shutting the system off automatically in case of modifications exceeding the usual fluctuations in the intended operating range.

Plastic components of drive couplings should be replaced regularly, however, after 5 years at the latest. The relevant manufacturer's specifications must be considered and be given priority.

For preventive maintenance of the pump, we recommend having the seals replaced after a maximum operating time of 5 years by an authorized Bosch Rexroth service company.

5. Accessories

5.1 SAE connection flanges

We recommend selecting the SAE flanges for suction and pressure port according to AB 22-15 (with welded connection) or AB 22-13 (with threaded connection).

5.2 Other accessories

To install the Rexroth PGZ.-1X gerotor pump on electric motors, we recommend selecting the pump carriers according to AB 41-20 and torsionally flexible couplings according to AB 33-22.

Notice!

Please also observe the following documentation:

Data sheet RE 07008 General information on hydraulic products Data sheet RE 07900 General information on assembly, commissioning

and maintenance of hydraulic systems

Data sheet RE 90220 General information on hydraulic fluids on mineral oil basis

TOOTHED RING PUMP PGZ4-1X/040RA07VE4

Manufacturer: Bosch Rexroth

Material #: R901230028

Model : PGZ4-1X/040RA07VE4

More are expected on May 26, 2025

This product is eligible for factory repair.

Frame sizes 4 and 5, type...VE4

PGZ 4-1X/ … RA07VE4

PGZ 5-1X/ … RA07VE4

Frame sizes 4 and 5, type ...VU2

PGZ 4-1X/ … RT07VU2

PGZ 5-1X/ … RT07VU2

Frame sizes 4 and 5, type ...VB2

PGZ 4-1X/ … RT07VB2

PGZ 5-1X/ … RT07VB2

Frame sizes 4 and 5, type ...VB3

PGZ 4-1X/ … RR07VB3

PGZ 5-1X/ … RR07VB3

Ports

Porting pattern suction port “S”

Porting pattern pressure port “P”

B3

B5

V1

IM V2

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