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Description
- Platform N
- Fixed displacement
- Size 20 … 36
- Continuous pressure up to 250 bar
- Intermittent pressure up to 280 bar
Features
- Consistent high quality based on large-volume production
- Long service life
- Slide bearings for high loads
- Drive shafts according to ISO or SAE and customer-specific solutions
- Line ports: connection flange or screw thread
- Combination of several pumps possible
Product description
General information
It is the central task of external gear pumps to convert mechanical energy (torque and speed) into hydraulic energy (flow and pressure). To reduce heat losses, Rexroth’s external gear units offer very high efficiencies. They are realized by pressure-dependent gap sealing and highly precise production technology.
Rexroth external gear pumps are built in four frame sizes: Platform B, F, N and G. Within each platform different sizes can be realized by different gear widths. The pumps are available in the versions Standard, High-Performance, SILENCE und SILENCE PLUS. Further configuration variants are given by different flanges, shafts, valve arrangements and multiple pump combinations.
Construction
The external gear pump consists essentially of a pair of gear wheels supported in bearing bushings and the housing with a front cover and an end cover.
The drive shaft protrudes from the front cover where it is usually sealed by the shaft seal. The bearing forces are absorbed by slide bearings. These bearings were designed for high pressures and have excellent emergency running properties, especially at low rotational speeds.
The gear wheels have 12 teeth. This keeps both flow pulsation and noise emission to a minimum. The sealing of the pressure chambers is achieved by forces depending on the working pressure. This ensures optimum efficiency. The working pressure generated in the gear chambers is transferred to the outside of the bearing bushings in specifically designed pressure fields in such a way that they are pressed against the gears and seal them up. The pressurized compression areas are limited by special seals. The seal in the area between the gear teeth and the housing is ensured by the smallest of gaps that are set depending on the pressure between the gear teeth and housing.
External gear pump layout
| 1 | Retaining ring | 8 | Housing seal ring |
| 2 | Shaft seal | 9 | Pump housing |
| 3 | Front cover | 10 | Bearing bushing |
| 4 | Slide bearings | 11 | Axial field seal |
| 5 | Centering pin | 12 | Supporting element |
| 6 | Gear wheel | 13 | Rear cover |
| 7 | Drive shaft | 14 | Torx screws |
Gear pumps with integrated valves
In order to reduce piping complexity, a flow control valve or pressure-relief valve can be integrated in the cover of the gear pump. Such solutions are used, for instance, for the hydraulic oil supply of power steering systems. The pump delivers a constant flow or maximum
pressure irrespective of the rotational speed. The residual flow distributed externally to other consumers.
3-way flow control valve, residual flow returned in suction line
qconst = 2 to 30 l/min
3-way flow control valve, residual flow distributed externally, loadable
qconst = 2 to 30 l/min
3-way flow control valve with pressure relief valve, residual flow returned in suction line
qconst = 2 to 30 l/min; p1 = 100 to 180 bar
Pressure relief valve, pressure discharge into suction line
p1 = 5 to 250 bar
Type code
Note
- Not all of the variants according to the type code are possible.
- Please select the desired pump with the help of the selection table (preferred types ) or after consultation with Bosch Rexroth.
- Special options are available on request.
Type code multiple pump
| 1) | A letter is to be selected for each pump stage, e.g. 3-way pump AZPJ + AZPJ + AZPB: JJB |
| 2) | A numerical value is to be selected for each pump stage, e.g.3-way pump 028/016/2.0 |
| 3) | A numerical value is to be selected for each pump stage, e.g.3-way pump 202020 |
Note
- Not all of the variants according to the type code are possible.
- Please select the desired pump with the help of the selection table (preferred types ) or after consultation with Bosch Rexroth.
- Special options are available on request.
Example 4-way pump:
AZPG…032… + AZPG…022… + AZPJ…016… + AZPJ…012…
Technical data
Table of values
| Size | 20 | 22 | 25 | 28 | 32 | 36 | 20 | 22 | 25 | 28 | 32 | 36 | ||||
| Series | Series 1x | Series 2x | ||||||||||||||
| Displacement | Vg | cm³ | 20 | 22.5 | 25 | 28 | 32 | 36 | 20 | 22.5 | 25 | 28 | 32 | 36 | ||
| Pressure at suction port S 1) | absolute | pe | bar | 0.7 ... 3 | ||||||||||||
| Maximum continuous pressure | p1 | bar | 230 | 230 | 230 | 210 | 180 | 160 | 250 | 250 | 250 | 230 | 210 | 180 | ||
| Maximum intermittent pressure | p2 | bar | 250 | 250 | 250 | 230 | 200 | 180 | 280 | 280 | 280 | 260 | 240 | 210 | ||
| Maximum pressure peaks | p3 | bar | 270 | 270 | 270 | 250 | 220 | 200 | 300 | 300 | 300 | 280 | 260 | 230 | ||
| Minimum speed at | ν = 12 mm²/s | p < 100 bar | nmin | rpm | 500 | 500 | 500 | 500 | 500 | 500 | 500 | 500 | 500 | 500 | 500 | 500 |
| p = 100 bar … 180 bar | nmin | rpm | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | ||
| p = 180 bar … p2 | nmin | rpm | 800 | 800 | 800 | 800 | 800 | 800 | 800 | 800 | 800 | 800 | 800 | 800 | ||
| ν = 25 mm²/s | at p2 | nmin | rpm | 500 | 500 | 500 | 400 | 400 | 400 | 500 | 500 | 500 | 500 | 500 | 500 | |
| Maximum speed | at p2 | nmax | rpm | 3000 | 3000 | 3000 | 2800 | 2800 | 2800 | 3000 | 3000 | 3000 | 2800 | 2800 | 2800 | |
| 1) | In the case of tandem pumps, the suction-side pressure difference between the individual pump stages must not exceed 0.5 bar. |
Note
- Safety requirements pertaining to the whole systems are to be observed.
- Please contact us for applications with frequent load changes.
Pressure definition
| p1: Continuous pressure max. | |
| p2: Intermittent pressure max. | |
| p3: Pressure peaks max. |
| 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) |
Note
You can find diagrams for a rough calculation in chapter "Diagrams / Characteristic curves".
General technical data
| Weight | m | kg | See chapter Dimensions |
| Installation position | No restrictions | ||
| Mounting type | Flange or through-bolting with spigot | ||
| Line connections | See chapter Dimensions | ||
| Direction of rotation, viewed on drive shaft | Clockwise or counter-clockwise, the pump may only be driven in the direction indicated | ||
| Drive shaft loading | Axial and radial forces only after consultation | ||
| Ambient temperature range | t | °C | -30 to +80 with NBR seals (NBR = nitrile rubber) |
| -20 to +110 with FKM seals (FKM = fluoroelastomer) | |||
Hydraulic fluids
The external gear unit is designed for operation with HLP mineral oil according to DIN 51524, 1-3. Under higher load, however, Bosch Rexroth recommends at least HLP compliant with DIN 51524 Part 2.
See the following data sheet for application instructions and requirements for selecting hydraulic fluid, behavior during operation as well as disposal and environmental protection before you begin project planning:
- 90220: Hydraulic fluids based on mineral oils and related hydrocarbons
Other hydraulic fluids on request.
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).
Viscosity and temperature of hydraulic fluids
| Viscosity range | |
| Permissible in continuous operation | ν = 12 … 800 mm²/s |
| Recommended in continuous operation | νopt = 20 … 100 mm²/s |
| Permissible for cold start | νmax ≤ 2000 mm²/s |
| Temperature range | |
| With NBR seals (NBR = nitrile rubber) | t = -30 °C … +80 °C |
| With FKM seals (FKM = fluoroelastomer) | t = -20 °C … +110 °C |
Observe the instructions for the filtration of the hydraulic fluid (see chapter Project planning information).
Direction of rotation
The dimensional drawings in the chapter Dimensions represent pumps for clockwise rotation. The position of the drive shaft or the position of suction and pressure port changes for counter-clockwise rotation.
Direction of rotation, viewed on drive shaft
Drives
1. Elastic couplings
- The coupling must not transfer any radial and axial forces onto the pump.
- The maximum admissible radial run-out deviation from the shaft to the fitting slot is 0.2 mm.
- Admissible shaft shifting see installation information of the coupling manufacturers.
2. Coupling sleeve
- To be used on splined shaft profile according to DIN and SAE.
- Attention: No radial or axial forces are permitted on the pump shaft or coupling sleeve. The coupling sleeve must be free to move axially.
- The distance between the pump drive shaft and drive shaft on the customer side must 2+1 mm.
- Provide installation space for the snap ring.
- Oil-bath or oil-mist lubrication is required.
3. Tang drive coupling
- For direct attachment of the pump at electric or combustion motor, gears, etc.
- Pump drive shaft with special tang drive and driver (3)
- No shaft sealing
- Installation on drive side and sealing according to the following recommendations and dimensions
- Customer-side drive shaft (1)
- Case-hardened steel DIN EN 10084, e.g. 20MnCrS5 case-hardened 1.0 mm deep; HRA 83±2
- Seal ring sliding surface ground without twist Rmax ≤ 4 μm
- Customer-side radial shaft seal ring (2)
- Provide with rubber sheathing (see DIN 3760, form AS, or double-lip ring)
- Provide installation edges with 15° incline and/or assemble shaft seal ring with protective sleeve
4. V-belts and straight gear wheels or helical toothed gear drives without outrigger bearing
For V-belt or gear wheel drives, please contact us specifying the application and mounting conditions (dimensions a, dm, dw and angle α). For helical toothed gear drives, details of the helix angle β are also required.
Maximum transferable drive torques
Splined shafts
| Drive shaft | Mmax | Size | p2 max | p2 max | |
| Code | Designation | Nm | bar | bar | |
| P | SAE J744 19-4 11T | 180 | 20 … 25 | 250 | 280 |
| 28 | 230 | 260 | |||
| 32 | 200 | 240 | |||
| 36 | 180 | 210 | |||
| D | SAE J744 22-4 13T | 320 | 20 … 25 | 250 | 280 |
| 28 | 230 | 260 | |||
| 32 | 200 | 240 | |||
| 36 | 180 | 210 | |||
Tapered shafts
| Drive shaft | Mmax | Size | p2 max | p2 max | |
| Code | Type | Nm | bar | bar | |
| C | 1 : 5 | 200 | 20 … 25 | 250 | 280 |
| 28 | 230 | 260 | |||
| 32 | 200 | 240 | |||
| 36 | 180 | 210 | |||
Tang drive
| Drive shaft | Mmax | Size | p2 max | |
| Code | Designation | Nm | bar | |
| N | Tang drive | 95 | 20 | 250 |
| 22 | 230 | |||
| 25 | 210 | |||
| 28 | 190 | |||
| 32 | 160 | |||
| 36 | 140 | |||
Multiple gear pumps
Gear pumps are well-suited to multiple arrangements, whereby the drive shaft of the first pump stage is extended to a second and possibly third pump stage. The shaft of the individual pump sections are normally connected via a driver or via a splined coupling (reinforced
through drive).
The individual pump stages are usually hydraulically isolated and have separate suction ports. On request a common suction port or separated but hydraulically connected suction ports are available.
For the configuration of multiple pumps, Bosch Rexroth recommends arranging the pump stage with the largest displacement on the drive side.
Note
Basically, the parameters of the single pumps apply, however certain restrictions need to be observed:
- Maximum rotational speed: This is determined by the largest pump stage used.
- Pressures: These are restricted by the maximum transmissible torques of the drive shaft, the through drive and the driver.
Addition of drive torques
Please note, that in multiple pump arrangements the drive torques of the single pumps stages will add up according to the following formula:
| 1) | Mmax: see table above "Maximum transferable drive torques" |
This may result in pressure restrictions for the respective pump stages.
Standard through drive (coupling dog)
In the case of pumps of the platform N (AZPN,AZPT), the driver for the following pump stage can carry a load of up to Mmax = 95 Nm. Please note possibly resulting pressure restrictions for the following pump stages.
| Following pump | Mmax [Nm] | |
| Platform N | AZPN | 95 |
| AZPT | 95 | |
| Platform F | AZPF | 65 |
| AZPS | 65 | |
| AZPJ | 65 | |
| Platform B | AZPB-3x | 25 |
Reinforced through drives
For applications with higher transfer torques or torsional vibrations reinforced through drives up to Mmax = 160 Nm are available. Lay out design on request.
Diagrams/characteristic curves
Flow characteristic curves
Power diagrams
Size 20
Size 22
Size 25
Size 28
Size 32
Size 36
Note
- Characteristic curves measured at ν = 32 mm²/s and t = 50 °C.
Noise charts
Noise levels dependent on the rotational speed, pressure range between 10 bar and pressure value p2 (see chapter "Technical data").
These are typical characteristic values for the respective size. They describe the airborne sound emitted solely by the pump.
Ambient influences (installation site, piping, other system components) were not taken into account.
The values refer to one individual pump.
Note
- Characteristic curves measured at ν = 32 mm²/s and t = 50 °C.
- Sound pressure level calculated from noise measurements made in the low reflection measuring room according to DIN 45635, Part 26.
- Distance from measuring sensor to pump: 1 m.
Size 20
Size 22
Size 25
Size 28
Size 32
Size 36
Dimensions
Drive shafts
Tapered shaft 1:5
Splined shaft (SAE J744 19-4 11T)
Splined shaft (SAE J744 22-4 13T)
Tang drive
Front cover
Rectangular flange ⌀100 mm
2-bolt flange ⌀101.6mm, SAE J744 101-2 (B)
2-bolt mounting ⌀52mm, with O-ring
Line connections
Rectangular flange SAE, with metric threads
| NG | Pressure side | Suction side | ||||||
| C | D | E | F | C | D | E | F | |
| mm | mm | mm | mm | mm | mm | |||
| 20 | 18 | 47.6 | 22.2 | M10; 14 mm deep | 18 | 47.6 | 22.2 | M10; 14 mm deep |
| 22 … 36 | 26.2 | 26 | 52.4 | 26.2 | ||||
Square flange
| NG | Pressure side | Suction side | ||||
| C | D | E | C | D | E | |
| mm | mm | mm | mm | |||
| 20 … 36 | 18 | 55 | M8; 13 mm deep | 26 | 55 | M8; 13 mm deep |
Preferred program
Tapered shaft 1:5 with rectangular flange ⌀100 mm
AZPN – 11 – … CB20MB
| NG | Material number | Maximum pressure | Maximum | Weight | Dimensions | ||
| Direction of rotation | p2 | nmax | m | A | B | ||
| counter-clockwise | clockwise | bar | rpm | kg | mm | mm | |
| 20 | 0 510 625 335 | 0 510 625 035 | 250 | 3000 | 5.4 | 52 | 109.8 |
| 22 | 250 | 3000 | 53.1 | 112.8 | |||
| 25 | 0 510 725 352 | 0 510 725 047 | 250 | 3000 | 5.6 | 55 | 115.8 |
| 28 | 0 510 725 364 | 0 510 725 055 | 230 | 2800 | 5.7 | 56.5 | 118.8 |
| 32 | 0 510 725 353 | 0 510 725 048 | 200 | 2800 | 5.9 | 59 | 123.3 |
Splined shaft (SAE J744 22-4 13T) with 2-bolt flange ⌀101.6 mm
AZPN – 1X – … DC20MB
AZPN – 1X – … DC20KB
| NG | Material number | Maximum pressure | Maximum | Weight | Dimensions | ||
| Direction of rotation | p2 | nmax | m | A | B | ||
| counter-clockwise | clockwise | bar | rpm | kg | mm | mm | |
| 20 | 250 | 2500 | 52 | 110.1 | |||
| 22 | 250 | 2500 | 53.5 | 112.6 | |||
| 25 | 0 510 725 377 | 0 510 725 057 | 250 | 2500 | 5.5 | 55 | 115.3 |
| 25 | 0 510 725 094 | 250 | 2500 | 5.5 | 55 | 115.3 | |
| 28 | 0 510 725 431 | 0 510 725 058 | 230 | 2500 | 5.7 | 56.5 | 118.3 |
| 36 | 0 510 725 363 | 0 510 725 155 | 180 | 2500 | 6 | 61 | 123.3 |
Splined shaft (SAE J744 22-4 13T) with 2-bolt flange ⌀101.6 mm
AZPN – 11 – … DC07KB S0023
| NG | Material number | Maximum pressure | Maximum | Weight | Dimensions | Version | ||
| Direction of rotation | p2 | nmax | m | A | B | |||
| counter-clockwise | clockwise | bar | rpm | kg | mm | mm | ||
| 20 | 0 510 625 380 | 0 510 625 073 | 250 | 3000 | 5.3 | 52 | 109.8 | 2 |
| 22 | 0 510 725 404 | 0 510 725 103 | 250 | 3000 | 5.4 | 52 | 112.8 | 1 |
| 25 | 0 510 725 405 | 0 510 725 104 | 250 | 3000 | 5.5 | 55 | 115.8 | |
| 28 | 0 510 725 406 | 0 510 725 105 | 230 | 2800 | 5.7 | 56.5 | 118.8 | |
| 32 | 0 510 725 407 | 0 510 725 106 | 200 | 2800 | 5.8 | 59 | 123.3 | |
| 36 | 180 | 2600 | 61 | 127.8 | ||||
Splined shaft (SAE J744 22-4 13T) with 2-bolt flange ⌀101.6 mm
AZPNN – 11 – … DC0707KB S0023
| NG | Material number | Maximum pressure | Maximum | Weight | Dimensions | |||||
| PI | PII | Direction of rotation | p2 I | p2 II | nmax | m | A | B | C | |
| counter-clockwise | clockwise | bar | bar | rpm | kg | mm | mm | mm | ||
| 20 | 20 | 0 510 665 461 | 0 510 665 149 | 250 | 250 | 2000 | 9.9 | 52 | 160.7 | 217.9 |
| 22 | 20 | 0 510 765 369 | 250 | 250 | 2000 | 10 | 53.5 | 163.6 | 222.7 | |
| 22 | 22 | 0 510 765 380 | 0 510 765 086 | 250 | 230 | 3000 | 10.1 | 53.5 | 165.2 | 225.7 |
| 25 | 20 | 0 510 765 067 | 250 | 250 | 2000 | 10.1 | 55 | 166.6 | 225.7 | |
| 25 | 22 | 0 510 765 068 | 250 | 230 | 3000 | 10.2 | 55 | 168.2 | 228.7 | |
| 25 | 25 | 0 510 766 315 | 0 510 765 069 | 250 | 200 | 3000 | 10.3 | 55 | 169.7 | 229.9 |
| 32 | 32 | 0 510 765 370 | 0 510 768 034 | 200 | 160 | 2500 | 10.9 | 29 | 181.2 | 244.9 |
Splined shaft (SAE J744 22-4 13T) with 2-bolt flange ⌀101.6 mm
AZPNF – 1X – … DC0720KB S0023
AZPNF – 1X – … DC0720KB S0081
AZPNF – 1X – … DC0720MB S0081
| NG | Material number | Maximum pressure | Maximum | Weight | Dimensions | |||||
| PI | PII | Direction of rotation | p2 I | p2 II | nmax | m | A | B | C | |
| counter-clockwise | clockwise | bar | bar | rpm | kg | mm | mm | mm | ||
| 20 | 4 | 0 510 665 181 | 250 | 280 | 3000 | 52 | 141.5 | 184.2 | ||
| 22 | 8 | 0 510 765 387 | 0 510 765 078 | 250 | 280 | 3000 | 8.4 | 53.5 | 147.9 | 193.8 |
| 22 | 11 | 0 510 765 381 | 0 510 765 062 | 250 | 280 | 3000 | 8.5 | 53.5 | 151.7 | 200.6 |
| 25 | 4 | 0 510 766 316 | 250 | 280 | 3000 | 55 | 147.6 | 190.2 | ||
| 25 | 11 | 0 510 765 377 | 0 510 765 079 | 250 | 280 | 3000 | 8.6 | 55 | 154.7 | 203.6 |
| 25 | 14 | 0 510 766 014 | 250 | 250 | 3000 | 8.7 | 55 | 155.2 | 206.8 | |
| 25 | 16 | 0 510 765 080 | 250 | 230 | 3000 | 8.8 | 55 | 155.2 | 210.2 | |
| 28 | 11 | 0 510 765 092 | 230 | 280 | 2800 | 8.7 | 56.5 | 157.7 | 206.6 | |
| 28 | 16 | 0 510 765 384 | 0 510 765 063 | 230 | 230 | 2800 | 8.9 | 56.5 | 158.2 | 213.2 |
| 28 | 19 | 0 510 766 314 | 0 510 767 058 | 200 | 200 | 2800 | 9 | 56.5 | 158.2 | 219.8 |
| 28 | 22 | 0 510 767 045 | 230 | 200 | 2100 | 9.2 | 56.5 | 165.8 | 223.6 | |
| 28 | 22 | 0 510 767 332 | 230 | 150 | 2100 | 9.3 | 56.5 | 165.8 | 223.6 | |
| 32 | 8 | 0 510 765 064 | 200 | 280 | 2500 | 8.8 | 59 | 158.4 | 204.3 | |
| 32 | 11 | 0 510 768 320 | 0 510 765 065 | 200 | 280 | 2500 | 8.9 | 59 | 162.2 | 211.1 |
| 32 | 14 | 0 510 765 378 | 200 | 250 | 2500 | 9 | 59 | 162.7 | 216.1 | |
| 32 | 16 | 0 510 765 066 | 200 | 230 | 2500 | 9.1 | 59 | 162.7 | 217.7 | |
| 32 | 22 | 0 510 768 318 | 200 | 150 | 2100 | 59 | 170.3 | 229.9 | ||
Project planning information
Technical data
All mentioned technical data are dependent on manufacturing tolerances and are applicable for certain boundary conditions.
Note that certain deviations are therefore possible and that technical data may vary when certain boundary conditions (e.g., viscosity) change.
Pumps delivered by Bosch Rexroth are tested for function and performance.
The pump may only be operated with the permissible data (see chapter "Technical data").
Characteristic curves
When dimensioning the gear pump, observe the maximum possible application data on the basis of the characteristic curves shown.
Filtration of the hydraulic fluid
Since the majority of premature failures in gear pumps occur due to contaminated hydraulic fluid, filtration should maintain a cleanliness level of 20/18/15 as defined by ISO 4406. Thus contamination can be reduced to an acceptable degree in terms of particle size and concentration.
Bosch Rexroth generally recommends full-flow filtration. The basic contamination of the hydraulic fluid filled in should not exceed class 20/18/15 as defined by ISO 4406. New fluids are often above this value. In such instances, a filling device with a special filter should be used.
Bosch Rexroth is not liable for wear due to contamination.
For hydraulic systems or devices with function-related, critical failure effects, such as steering and brake valves, the type of filtration selected must be adapted to the sensitivity of these devices.
Notice
When used as an auxiliary steering pump, the vehicle manufacturer should make sure that the steering system continues to operate safely as per ECE R-79 even if the auxiliary steering pump fails.
Further information
Installation drawings and dimensions are valid at date of publication, subject to modifications.
Further information and notes on project planning can be found in the “General instruction manual for external gear units” (07012-B, chapter 5.5).
Information
AZ configurator
With our practical product selector, it will take you next to no time to find the right solution for your applications, no matter whether it is SILENCE PLUS or another external gear unit.
The selector guides you through a selection of features to all of the products available for order. By clicking on the order number, you can view and download the following product information: Data sheet, dimension sheet, operating conditions, and tightening torques.
You can order your selection directly via our online shop and at the same time benefit from an additional discount of 2%. And if you need something really quickly, simply use our fast delivery and preferred programs (GoTo). Then the goods will be sent within 10 working days.
You also have the possibility to easily and conveniently configure your individual external gear unit with our AZ configurator. All the necessary data that you need for the project planning of external gear units is requested by means of the menu navigation.
For an already existing configuration you receive as a result the order number, the type code, as well as further information. If your configuration does not lead to a product that is available for order, our online tools provide you with the possibility of sending a project request directly to Bosch Rexroth. We will then get in contact with you.
Link: www.boschrexroth.com/az-configurator
Fit4SILENCE app
You want to quickly determine the noise level of an application but don’t have a measuring device at hand? No problem with Fit4SILENCE! Our new noise measurement app for all Android devices can be immediately downloaded free of charge. After calibration, you can start using it straight away and conduct fast, accurate noise measurements with different weightings in no time at all. An additional measuring device is no longer necessary, because calibrated smartphones using the app can achieve an accuracy that approximates professional measuring devices.
Last but not least, the app contains interesting information about the SILENCE PLUS technology, including an audio sample.
Link: www.boschrexroth.com/silence-plus
Further information
- Extensive notes and suggestions can be found in the Hydraulic Trainer, volume 3: “Planning and Design of Hydraulic Power Systems”, order number R900018547.
Accessories
90° angle flange, for square flange 20
| LK | D | Series 1) | Material number | pmax | K1 | K2 | K3 | K4 | K5 | K6 | K7 | K9 | K10 | SW | Screws | O-ring | Weight | |
| mm | mm | bar | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | 2 × | 2 × | NBR | kg | ||
| 55 | 20 | S | 1 515 702 004 | 250 | 13 | 18.2 | 45 | 34.5 | 24 | 38 | 57 | 8.4 | 58 | 36 | M8 × 25 | M8 × 50 | 32 × 2.5 | 0.62 |
| 55 | 30 | S | 1 545 719 006 | 250 | 12 | 26.5 | 49 | 38.5 | 32 | 51 | 63.5 | 8.4 | 58 | 50 | M8 × 25 | M8 × 50 | 32 × 2.5 | 0.63 |
| 55 | 35 | L | 1 515 702 005 | 100 | 12 | 26.5 | 49 | 38.5 | 32 | 52 | 61 | 8.4 | 58 | 50 | M8 × 25 | M8 × 60 | 32 × 2.5 | 0.77 |
| 55 | 42 | L | 1 515 702 019 | 100 | 12 | 26.5 | 49 | 38 | 40 | 64 | 61.5 | 8.4 | 58 | 60 | M8 × 25 | M8 × 70 | 32 × 2.5 | 1.04 |
| 1) | See DIN EN ISO 8434-1 |
Note
Permissible tightening torques can be found in the “General Operating Instructions for External Gear Units” (07012-B).
Downloads
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