External gear pump SILENCE PLUS AZPJ

Transcription

1 External gear pump SILENCE PLUS AZPJ RE 194 Edition: Replaces: Platform F Low-noise fixed pump Sizes 12 to 28 Continuous pressure up to 2 bar Intermittent pressure up to 28 bar Features Very low inherent noise Optimized pressure pulsation reduces noise emissions and oscillations in the system Pleasant tone due to low frequency Consistently high quality due to high-volume series production Long service life Slide bearings for high loads Drive shafts according to ISO or SAE and customer-specific solutions Line connections: Connection flanges Combinations of several pumps possible Contents Functional description 2 Type code single pump 4 Type code multiple pump 6 Technical data 8 Flow and power characteristic curves 1 Noise charts 12 Drives 14 Multiple gear pumps 16 Gear pumps with integrated valves 17 Dimensions drive shafts 18 Dimensions front cover 19 Dimensions line ports 2 Dimensions preferred series 21 Accessories 27 Spare parts 29 Notes for commissioning Order number overview 31 AZ configurator 32 Fit4SILENCE app 32 RE 194/8.215, Bosch Rexroth AG

2 2 AZPJ External gear pump Functional description Functional description General The key task of external gear units is to convert mechanical energy (torque and rotational speed) into hydraulic energy (flow and pressure). To avoid unnecessarily high heat losses, units with high efficiencies are sought after. These are realized by means of pressure-dependent gap sealing and high-precision manufacturing technology. With extremely low-noise SILENCE PLUS pumps, the intrinsic noise is reduced by 15 db (A) on average as compared with standard external gear pumps and the flow pulsation is also decreased by 75%. Pumping principle Continuous tooth contact reduces operating noise: A non-involute rounded tooth profile, combined with helical gearing, forms the heart of the SILENCE PLUS. Thanks to permanent tooth contact, the hydraulic fluid is transported almost continuously and noiselessly. The possibility of noise developing from trapped oil between the tooth flanks is prevented in the first place. A hydrostatic bearing ensures long service life: The high performance and long service life of the SILENCE PLUS is due to a Rexroth patented solution: Hydrostatic grooves provide wear-free compensation for the internal axial forces generated in the helical gearing even at pressures up to 28 bar. Standard SILENCE PLUS Flow pulsation Hydrostatic bearing SILENCE PLUS SILENCE PLUS Flow qv Standard Time t Bosch Rexroth AG, RE 194/8.215

3 External gear pump AZPJ Functional description 3 Construction The external gear pump consists essentially of a pair of gear wheels supported in bearing bushes and the housing with a front and a rear cover. The drive shaft protrudes from the front cover where it is sealed by the shaft seal ring. The bearing forces are absorbed by slide bearings. These were designed for high pressures and have excellent emergency running properties, especially at low rotational speeds. The gear wheels have 7 teeth. This keeps both flow pulsation and noise emission to a minimum. The internal sealing of the pressure chambers is achieved by pressure-dependent forces. This ensures optimum efficiency. On the outside, the movable bearing bushes are pressurized with operating pressure and pressed as seals against the gear wheels. The pressurized compression springs are limited by special seals. The seal on the area between the gear teeth and the housing is ensured by the smallest of gaps that adjust depending on the pressure between the gear teeth and housing. Axial compensation SILENCE PLUS Axial seal External pressure field Internal pressure field Radial seal Rear cover Front cover Sealing zone Compensation forces Assembly AZPJ 1 Snap ring 2 Shaft seal 3 Front cover 4 Slide bearing 5 Centering pin 6 Gear wheel 7 Drive shaft 8 Housing seal ring 9 Pump housing 1 Bearing bushing 11 Axial field seal 12 Supporting element 13 Rear cover 14 Torx screws Product overview AZPJ preferred types Version Page 21 Page 22 Page 23, 24 Page Page 26 RE 194/8.215, Bosch Rexroth AG

4 4 AZPJ External gear pump Type code single pump Type code single pump AZP J External gear unit 1 External gear pump AZP Series 2 SILENCE PLUS, platform F J Series 3 Shaft 2 2 Version 4 Phosphated, pinned 1 Chromated, pinned 2 Size (NG) 5 Geometric displacement V g [cm 3 ], see Technical data on page Direction of rotation 6 Viewed on drive shaft clockwise R counter-clockwise L Drive shaft Suitable front cover 7 Tapered shaft 1 : 5 B, P C 1 : 5 A, G S 1 : 8 O H Dihedral, claw M, T N Splined shaft SAE J T R, C R SAE J T R, C P DIN 5482 B17 14 B, P F Parallel keyed shaft SAE J A R Q ISO 18 mm B A Front cover 8 Rectangular flange 8 mm B mm O 2-bolt flange mm SAE J A R 11.6 mm SAE J B C 2-bolt mounting 52 mm With O-ring M mm Connection variant 1 N mm Connection variant 2 P 4-bolt mounting 52 mm With O-ring T Outboard bearing 8 mm Type 1 A Type 2 G Bosch Rexroth AG, RE 194/8.215

5 External gear pump AZPJ Type code single pump AZP J Line connection Square flange 2 Square flange Sealing material 1 NBR (nitrile rubber) M Rear cover FKM (fluoroelastomer) NBR (nitrile rubber), shaft seal in FKM (fluoroelastomer) 11 Without valve (standard) B With pressure relief Residual flow internal D valve external T With flow control Residual flow external E valve internal S With pressure relief valve and flow control valve V Valve setting pressure relief valve (parameter only required for rear cover with pressure relief and/or flow control valve) 12 Without pressure relief valve XXX Cracking pressure in bar, 3-digit, e.g. 18 bar 18 Valve setting flow control valve (parameter only required for rear cover with pressure relief and/or flow control valve) 13 Without flow control valve XX Flow in l/min, 2-digit, e.g. 9 l/min 9 Special version 14 Special version SXXXX = Available = Not available 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. P K RE 194/8.215, Bosch Rexroth AG

6 6 AZPJ External gear pump Type code multiple pump Type code multiple pump AZP External gear unit 1 External gear pump AZP Series 1) 2 High-performance 1. to 7.1 cm 3 /rev Data sheet 187 B 4. to 28 cm 3 /rev Data sheet 189 F 2. to 36 cm 3 /rev Data sheet 191 N 22.5 to 1 cm 3 /rev Data sheet 193 G SILENCE 4. to 28 cm 3 /rev Data sheet 195 S 2. to 36 cm 3 /rev Data sheet 192 T 22.5 to 63 cm 3 /rev Data sheet 198 U SILENCE PLUS 12. to 28 cm 3 /rev Data sheet 194 J Series (relates to pump stage 1) 3 Standard bearing 1 Reinforced bearing 2 Version (relates to pump stage 1) 4 Phosphated, pinned 1 Chromated, pinned 2 Size (NG) 2) 5 In accordance with data sheet for the individual series Direction of rotation 6 Viewed on drive shaft clockwise R counter-clockwise L Drive shaft (relates to pump stage 1) 7 In accordance with data sheet of pump stage 1 Front cover (relates to pump stage 1) 8 In accordance with data sheet of pump stage 1 Line connection (per pump stage) 3) 9 In accordance with data sheet for the individual series Sealing material 1 NBR (nitrile rubber) M FKM (fluoroelastomer) NBR (nitrile rubber), shaft seal in FKM (fluoroelastomer) P K Rear cover (relates to last pump stage) 11 In accordance with data sheet for the last pump stage Special version 12 Special version SXXXX 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 28/16/2. 3) A numerical value is to be selected for each pump stage, e.g. 3-way pump 222 Bosch Rexroth AG, RE 194/8.215

7 External gear pump AZPJ Type code multiple pump 7 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 32 + AZPG 22 + AZPJ 16 + AZPJ AZP GGJJ /22/16/12 R C B 2222 K B RE 194/8.215, Bosch Rexroth AG

8 8 AZPJ External gear pump Technical data Technical data General Weight kg See dimensions starting on page 21 Installation position Any Mounting type Flange or through-bolting with spigot Line ports Flange Direction of rotation (viewed on drive shaft) Clockwise or counter-clockwise, the pump may only be driven in the direction indicated Drive shaft bearing Radial and axial forces only after consultation Ambient temperature range θ C to +8 with NBR seals 2 to +11 with FKM seals Hydraulic Hydraulic fluid Mineral oil according to DIN 51524, 1-3, however under higher load at least HLP compliant with DIN Part 2 is recommended. Please observe data sheet 922. Other hydraulic fluids on request Hydraulic fluid temperature range θ C to +8 with NBR seals (NBR = nitrile rubber) 2 to +11 with NBR seals (FKM = fluoroelastomer) Viscosity range permissible in continuous operation ν mm 2 /s 12 to 8 recommended in continuous operation ν opt mm 2 /s 2 to 1 permissible for cold start ν max mm 2 /s 2 Maximum admissible degree of contamination of the hydraulic fluid, 2/18/15 1) Cleanliness level according to ISO 446 (c) Note Safety requirements pertaining to the whole systems are to be observed. Please contact us for applications with frequent load changes. The dimensions represent pumps for clockwise rotation. The position of the drive shaft or suction and pressure port changes for counter-clockwise rotation. Direction of rotation, viewed on drive shaft Counter-clockwise rotation Clockwise rotation 1) 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. Bosch Rexroth AG, RE 194/8.215

9 External gear pump AZPJ Technical data 9 AZPJ-2x Size Displacement, geometric, per revolution V g cm Pressure in suction port 1) absolute p e bar.7 to 3 Maximum continuous pressure p 1 bar Maximum intermittent pressure p 2 bar Maximum pressure peak p 3 bar Minimum rotational speed at 12 mm 2 /s < 1 rpm bar 1 to 18 rpm to p 2 rpm mm 2 /s p 2 rpm 6 Minimum rotational speed at p 2 rpm Pressure definition p 3 Pressure p maximum 2 s p 2 p 1 Time t p 1 p 2 p 3 Maximum continuous pressure Maximum intermittent pressure Maximum pressure peak Design calculations for pumps Flow q v = Torque M = Power P = Pressure Δp = V g n η v 1 V g Δp 2 π η hm 2 π M n q v Δp = 6 6 η t M 2 π η hm V g [l/min] [Nm] [kw] [bar] Key V g Displacement per revolution [cm 3 ] Δp Differential pressure [bar] (Δp = p p e ) n Rotational speed [rpm] q v M P Flow [l/min] Torque [Nm] Power [kw] η v Volumetric efficiency 2) η hm Hydraulic mechanical efficiency 2) η t Total efficiency (η t = η v η hm ) 2) Δp = Displacement V g = V g = Rotational speed n = P 6 η t q V q V 1 n η V [bar] [cm 3 ] M 2 π η hm [cm 3 ] Δp q V 1 [min 1 ] V g η V n P M Note q V V g p e On the following pages you can find diagrams for a rough calculation. p 1) In the case of tandem pumps, the suction-side pressure difference between the individual pump stages must not exceed.5 bar. 2) Parameter as a decimal, e.g..9 RE 194/8.215, Bosch Rexroth AG

10 1 AZPJ External gear pump Flow and power characteristic curves Flow and power characteristic curves Flow Size p = 2 bar p 2 = maximum intermittent q V = f (n, V g ) incl. η V NG Flow qv [l/min] Drive power P [kw] Δp = 28 bar Δp = 28 bar Drive torque M [Nm] Size Rotational speed n [rpm] Size Rotational speed n [rpm] Δp = 28 bar 2 Δp = 28 bar Δp = 28 bar 2 2 Δp = 28 bar Drive power P [kw] Drive torque M [Nm] Drive power P [kw] Drive torque M [Nm] Rotational speed n [rpm] Rotational speed n [rpm] Bosch Rexroth AG, RE 194/8.215

11 External gear pump AZPJ Flow and power characteristic curves 11 Size 19 Size 22 Δp = 28 bar 2 Δp = 28 bar Δp = 24 bar Δp = 24 bar Drive power P [kw] Drive torque M [Nm] Drive power P [kw] Drive torque M [Nm] Rotational speed n [rpm] Rotational speed n [rpm] Size Size Drive power P [kw] Δp = 215 bar Δp = 215 bar Drive torque M [Nm] Drive power P [kw] Δp = 16 bar Δp = 16 bar Drive torque M [Nm] Rotational speed n [rpm] Rotational speed n [rpm] Note Characteristic curves measured at ν = 32 mm²/s and θ = C. P = f (n, p) incl. η t M = f (n, p) incl. η hm RE 194/8.215, Bosch Rexroth AG

12 12 AZPJ External gear pump Noise charts Noise charts Apart from the low levels, the much lower frequency also contributes to the substantial noise benefits of the SILENCE PLUS compared with other pump designs. Noise levels dependent on the rotational speed, pressure range between 1 bar and pressure value p 2 (see technical data on page 9). 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 θ = 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 12 Size 16 Sound pressure level LpA [db(a)] bar 1 bar Sound pressure level LpA [db(a)] bar 1 bar Rotational speed n [rpm] Rotational speed n [rpm] Size 14 Size 19 Sound pressure level LpA [db(a)] bar 1 bar Sound pressure level LpA [db(a)] bar 1 bar Rotational speed n [rpm] 1 2 Rotational speed n [rpm] Bosch Rexroth AG, RE 194/8.215

13 External gear pump AZPJ Noise charts 13 Size 22 Size 6 24 bar bar Sound pressure level LpA [db(a)] bar Sound pressure level LpA [db(a)] bar 1 2 Rotational speed n [rpm] 1 2 Rotational speed n [rpm] Size 28 Sound pressure level LpA [db(a)] bar 1 bar 1 2 Rotational speed n [rpm] RE 194/8.215, Bosch Rexroth AG

14 14 AZPJ External gear pump Drives Dimensions [mm] Drives 1. Elastic coupling The coupling must not transfer any radial or axial forces to the pump. The maximum radial runout from the shaft to the spigot may not exceed.2 mm. See the coupling manufacturer s assembly instructions for permissible shaft misalignments. 3. Coupling dog For attaching the pump directly to an electric motor or combustion engine, gear, etc. The pump shaft has a special coupling dog and driver (3) There is no shaft sealing Drive-side installation and sealing according to the following recommendations and dimensions min 8 1 A ø ø A 3 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 be 2 +1 mm Provide installation space for the snap ring. Oil-bath or oil-mist lubrication is required Drive shaft on the customer side Pump drive shaft Drive shaft M max [Nm] Size p max [bar] F 1 12 to R to P to ø h11 Drive shaft M max [Nm] Size p max [bar] N 65 12, Drive shaft on the customer side (1) Case-hardening steel DIN 1721 e.g. 2 MnCrS 5 case-hardened.6 deep; HRC 6 ±3 Seal ring running surface ground without rifling R max 4 μm The maximal transmissible torque of 85 Nm applies to a claw height of 19 mm. With lower claw heights, e.g. 17 mm, the transmissible torque decreases to 65 Nm. Radial shaft seals on the customer side (2) Provide with rubber cover (see DIN 376, type AS, or double-lipped ring) Provide installation edge with 15 slant or install shaft seal with protection sleeve Bosch Rexroth AG, RE 194/8.215

15 External gear pump AZPJ Drives V-belts and straight gear wheels or helical toothed gear drives without outboard bearing For V-belt or gear wheel drives, please contact us specifying the application and mounting conditions (dimensions a, d m, d w and angle α). For helical toothed gear drives, details of the helix angle β are also required. a Front cover A, option (type 1 with sleeve) a F r F a Fr [N] n = 1 dm 6 n = 2 n = n = 4 a 18 Front cover G (type 2) a [mm] dw a Outboard bearing Outboard bearing are offered to eliminate possible problems when the pumps are driven by V-belts or gear wheels. The diagrams show the radial and axial load capacity in relation to a bearing service life of L H = 1 h. Front cover A, standard (type 1 with claw) a F r F a Fr [N] a [mm] a n = 1 n = 2 n = n = 4 a F r F a Fr [N] n = 4 n = 1 n = 2 n = optimum a [mm] Front cover M max [Nm] Size p max [bar] A with claw A with sleeve to G to RE 194/8.215, Bosch Rexroth AG

16 16 AZPJ External gear pump Multiple gear pumps 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 connected via a driver. In most cases, each pump stage is isolated from its neighbor, i.e. the suction ports are separate from one another. Standard through drive AZPJ M max = 65 Nm AZPJ 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 load capacity of the drive shaft, the through drive and the driver. See the dimensional drawings for the parameters. Reinforced through drive Formula AZPJ M max = 16 Nm AZPJ Pressure restriction for standard through drive In the case of series AZPJ, the driver for the second pump stage can carry a load of up to M max = 65 Nm, i.e. there is a pressure restriction for the second stage and potentially additional stages. Maximum transferable drive torque Drive shaft Designation M max [Nm] 1) Splined shafts Tapered shaft Parallel keyed shaft R SAE J T 11 P SAE J T 18 F DIN 5482 B C 1 : H 1 : 8 16 Q SAE J A 55 A Shaft Claw N Dihedral claw 65 for sizes 12 and for sizes 16 to 28 M M max Δp 1 V g Δp 2 V g Δp 3 V g3.177 Δp [bar], V g [cm 3 /rpm] Combinations (coupling dog) Pump stage 1 M max [Nm] Pump stage 2 AZPJ 65 AZPJ AZPJ 65 AZPF AZPF 65 AZPJ AZPJ AZPB-2x For the configuration of multiple pumps, Bosch Rexroth recommends arranging the pump stage with the largest displacement on the drive side. If the first stage is driven by a coupling dog (driver) or outboard bearing type 1, pressure restrictions apply as indicated in the formula. Reinforced through drives are available for applications with higher transfer torques or torsional vibrations. Design available on request. 1) These values only apply while adhering to the defined conditions on page 8. Please consult Bosch Rexroth if the specified values are to be exceeded. Bosch Rexroth AG, RE 194/8.215

17 External gear pump AZPJ Gear pumps with integrated valves 17 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 irrespective of the rotational speed. The residual flow is either returned internally to the suction port or distributed externally to other consumers. Valves 3-way flow control valve, residual flow returned in suction line q const = 2 to l/min SXXX17 (example) 3-way flow control valve, residual flow distributed externally; loadable q const = 2 to l/min EXXX12 (example) q const q const 3-way flow control valve with pressure relief valve, residual flow returned in suction line q const = 2 to l/min p 1 = 1 to 18 bar V111 (example) Pressure relief valve, pressure guide in suction line p 1 = 5 to 2 bar D18XX (example) q const p 1 p 1 RE 194/8.215, Bosch Rexroth AG

18 2 18 AZPJ External gear pump Dimensions drive shafts Dimensions [mm] Dimensions drive shafts Tapered shaft 1 : 5 Splined shaft (SAE J T) C 38±.6 1) 4.2±.6 2) ± ±1 DIN 128-A12-FSt 3 5 DIN 6888 ø R min mm usable spline length ø ±.4 8±.5 ø :5 M ANSI B92.1 9T 16/32 SP Tooth thickness ŝ = Tapered shaft 1 : 5 (for front cover A, G) S ±.7 DIN 128-A14-FSt Reference DIN ± ø Splined shaft (SAE J T) P min. 21 mm usable spline length ø ±.4 8±.5 ø :5 M A ANSI B T 16/32 SP pressure angle Tapered shaft 1 : 8 H 39.5± ± DIN 128-A12-FSt 3 5 DIN 6888 Splined shaft / (DIN 5582 B17 14) F min mm usable spline length ø ) ) 2±.5 ø ±.35 1:8 M B DIN 5482 Tooth thickness ŝ = Dihedral claw Parallel keyed shaft (SAE J A) N NG12-16: ø NG19-28: ø Q ± ±.4 ø Pump without shaft seal, see page DIN 6885 Parallel keyed shaft (ISO 18 mm) A 7.2 ± ) In combination with front cover B 2) In combination with front cover P -.16 ø ±.4 Bosch Rexroth AG, RE 194/8.215

19 Dimensions [mm] External gear pump AZPJ Dimensions front cover 19 Dimensions front cover Rectangular flange 8 mm Rectangular flange mm B 7.2± ±.1 R9±.5 O 4.8±.1 R8 71.4±.2 8.5±.11 ø ± ø18 1±.2 9±.11 72±.2 9± ±1.5 12±1.5 ø ±1 19± ± ± bolt flange mm, SAE J A R ø ±1 6.2± ø SAE-A R47±1 16.4± ±1.5 R12±1 2-bolt flange 11.6 mm, SAE J B C ø ø41 9.5±.1 max ± ± ±.15 ø26 R13±1 ±.2 R58±1 SAE-B 14.3±.27 2-bolt mounting 52 mm with O-ring M ø ø ø ±.2 3.2±.2 7.2±.1 9.9± ±1 6±.2 min 1.6 6±.2 Pump without shaft seal see page 14 ± ± ±1.5 2 M bolt mounting 52 mm with O-ring T NG12-16: ø NG19-28: ø ± ±.2 min 1.6 6±.2 7.2±.1 ±.1 ø36 ø ø M ± ±1.5 2-bolt mounting mm, connection variant 1 2-bolt mounting mm, connection variant 2 N ø ±1 7.2±.1 min 1.6 6±.2 ±.1 P -.2 ø ±1 7.2±1 min 1.6 6±.2 ±.1 6± ± ±.1 6± ± ±1.5 2 M M1-1.9 RE 194/8.215, Bosch Rexroth AG

20 2 2 AZPJ External gear pump Dimensions line ports Dimensions [mm] Outboard bearing 8 mm, type 1 Outboard bearing 8 mm, type 2 A DIN 6888 DIN 128-A14-FSt ø ±1 M A ± ±.1 9.5±.2 72±.2 9±1.5 R9±5 12±1.5 G ø ø ±1 53.8±.3 for reference 2 ± ± ±1.5 9±1.5 1±.2 9±.11 72±.2 R9± ± ±1.5 Dimensions line ports Square flange Size Pressure side Suction side C D E C D E 12 to M6; 13 deep 2 4 M6; 13 deep C D E M6; 13 deep M8; 13 deep 22 to M6; 13 deep M8; 13 deep Size Pressure side Suction side C D E C D E C D E 12 to M6; 13 deep M8; 13 deep Bosch Rexroth AG, RE 194/8.215

21 Dimensions [mm] External gear pump AZPJ Dimensions preferred series 21 Dimensions preferred series Tapered shaft 1:5 with rectangular flange 8 mm AZPJ 22 CB2MB 38±.6 B±.7 7.2±.1 A±.5 R9±.5 ø ± ±.2 9± ± ±1.5 12±1.5 1:5 ø ±.15 M6; 13 deep 72±.2 9± ± '38"±1' ø Clockwise rotation: As shown in drawing 17 Counter-clockwise rotation: Suction and pressure port interchanged DIN 128-A12-FSt D±.15 C D±.15 DIN 936 M E C±.3 E Drawing number: A A DIN Version 1 Sizes 12 to 19 Version 2 Sizes 22 to 28 Size Order number Maximum Maximum Weight Dimensions [mm] Direction of rotation intermittent rotational [kg] Counter-clockwise Clockwise pressure p 2 [bar] speed [rpm] A B C D E M6; deep M8; deep RE 194/8.215, Bosch Rexroth AG

22 22 AZPJ External gear pump Dimensions line ports Dimensions [mm] Splined shaft (SAE J T) with 2-bolt flange mm AZPJ 22 RR2MB 6.2±.1 A±.5 B±.7 SAE-A flange R47.5±1 11±.27 ø ± R12± ±.15 M6; 13 deep 16.4± ± ± ±.5 ø ø ø21 Clockwise rotation: As shown in drawing Counter-clockwise rotation: Suction and pressure port interchanged min usable spline length D±.15 C E D±.15 C±.3 Drawing number: A A E Splined shaft ANSI T 16/32 SP Tooth thickness ŝ = Version 1 Sizes 12 to 19 Version 2 Sizes 22 to 28 Size Order number Maximum Maximum Weight Dimensions [mm] Direction of rotation intermittent rotational [kg] Counter-clockwise Clockwise pressure p 2 [bar] speed [rpm] A B C D E M6; deep M8; deep Bosch Rexroth AG, RE 194/8.215

23 Dimensions [mm] External gear pump AZPJ Dimensions line ports 23 Tapered shaft 1:8 with rectangular flange mm AZPJ 22 HOMB B±.7 4.8±.1 A±.5 R8 ø ± ±.2 8.5± ±.1 4.5± :8 19± ± ±.15 M6; 13 deep 71.4± ± Clockwise rotation: As shown in drawing 12±.35 ø16.65 Counter-clockwise rotation: Suction and pressure port interchanged DIN 128-A12-FSt 39.7±.15 2 DIN 936- M M8; 13 deep Drawing number: A DIN 6888 Version 1 Sizes 12 to 19 Size Order number Maximum Maximum Weight Dimensions [mm] Direction of rotation intermittent rotational [kg] Counter-clockwise Clockwise pressure p 2 [bar] speed [rpm] A B RE 194/8.215, Bosch Rexroth AG

24 24 AZPJ External gear pump Dimensions line ports Dimensions [mm] Tapered shaft 1:8 with rectangular flange mm AZPJ 22 HO2MB B±.7 4.8±.1 A±.5 R8 ø ± ±.2 8.5± ±.1 4.5± :8 19± ± ±.15 M6; 13 deep 71.4± ± Clockwise rotation: As shown in drawing 12±.35 ø16.65 Counter-clockwise rotation: Suction and pressure port interchanged DIN 128-A12-FSt D±.15 C D±.15 DIN 936- M E C±.3 E Drawing number: A DIN 6888 Version 1 Sizes 12 to 19 Version 2 Sizes 22 to 28 Size Order number Maximum Maximum Weight Dimensions [mm] Direction of rotation intermittent rotational [kg] Counter-clockwise Clockwise pressure p 2 [bar] speed [rpm] A B C D E M8; deep Bosch Rexroth AG, RE 194/8.215

25 Dimensions [mm] External gear pump AZPJ Dimensions line ports Cylindrical shaft (ISO 18) with rectangular flange 8 mm AZPJ 22 AB2MB B±.7 7.2±.1 A±.5 R9±.5 ø ± ±.2 9± ± ±1.5 ø18 12± ±.15 M6; 13 deep 72±.2 9± Clockwise rotation: As shown in drawing 36±.4 Counter-clockwise rotation: Suction and pressure port interchanged D±.15 C D± ø E C±.3 E Drawing number: A A Shaft key incl. Version 1 Sizes 12 to 19 Version 2 Sizes 22 to 28 Size Order number Maximum Maximum Weight Dimensions [mm] Direction of rotation intermittent rotational [kg] Counter-clockwise Clockwise pressure p 2 [bar] speed [rpm] A B C D E M6; deep M8; deep RE 194/8.215, Bosch Rexroth AG

26 26 AZPJ External gear pump Dimensions line ports Dimensions [mm] Dihedral claw with 4-bolt mounting mm AZPJ 22 RR2MB 15.7±1 NG12-16: ø NG19-28: ø19-.1 ø ø ± ø A±.5 B± ±.15 max ø ± ±.1 min. 1.6 ±.1 ±.1 Clockwise rotation: As shown in drawing 37.8±1.5 4 M ) Counter-clockwise rotation: Suction and pressure port interchanged D±.15 1) Pump without seal provide with shaft seal according to Y C D±.15 For driver dimensions, see page 29 E C±.3 E Drawing number: A A Version 1 Sizes 12 to 19 Version 2 Sizes 22 to 28 Size Order number Maximum Maximum Weight Dimensions [mm] Direction of rotation intermittent rotational [kg] Counter-clockwise Clockwise pressure p 2 [bar] speed [rpm] A B C D E M6; deep M8; deep Bosch Rexroth AG, RE 194/8.215

27 Dimensions [mm] External gear pump AZPJ Accessories 27 Accessories Gear pump flanges, straight, for square flange 2 (see page 2) Complete screw connections with O-ring, metric screw set, nuts and olive. LA L4 S1 LA ød3 ød1 ødb LK L2 M6-8.8 ød1 L1 LK D1 D3 L1 L2 L4 LA S1 DB Screws 4x O-ring NBR Weight [kg] Order number p [bar] 35 1L M L M L M L M L M L M L M Gear pump flanges, 9 angle, for square flange 2 (see page 2) Complete screw connections with O-ring, metric screw set, nuts and olive. LA L3 L4 M6-8.8 M8-8.8 S1 L1 L2 L5 LA ødb LK ød3 ød1 ød1 LK D1 D3 L1 L2 L3 L4 L5 LA S1 DB Screws O-ring 2x 2x NBR Weight [kg] Order number p [bar] 35 1L M 6 22 M L M 6 22 M L M 6 22 M S M 6 22 M L M 6 22 M S M 6 22 M L M 6 22 M L M 6 22 M S M 6 22 M L M 6 22 M L M 6 2 M L M 6 22 M RE 194/8.215, Bosch Rexroth AG

28 28 AZPJ External gear pump Accessories Dimensions [mm] Gear pump flange, 3-hole, 9 angle, for square flange (see page 2) Complete screw connections with O-ring, metric screw set, nuts and olive. LK L3 L4 M6-8.8 M8-8.8 LA L2 L1 L5 ødb ød3 ød1 S1 LK D1 D3 L1 L2 L3 L4 L5 LA S1 DB Screws 3x O-ring NBR Weight [kg] Order number 12L M L M L M L M L M Note You can find the permissible tightening torques in our publication 712-B1 General Operating Instructions for External Gear Units. p [bar] Bosch Rexroth AG, RE 194/8.215

29 Dimensions [mm] External gear pump AZPJ Spare parts 29 Spare parts Note Spare parts can be found online at Pos. Designation Order number Dimensions Material 3 Shaft seal NBR x x FKM x x NBR x x FKM x x Driver for sizes 12 to x Driver for sizes 19 to x 31 O-ring NBR x FKM x 8 Seal kit NBR x x x x x FKM x x x x x Schematic diagram AZPJ 22 CB AZPJ 22 RR AZPJ 22 HO AZPJ 22 AB AZPJ 22 NT 3 Outboard bearing 8 Single pump 8 Multiple pump Driver (Pos. ) for sizes 12 to 16 Driver (Pos. ) for sizes 19 to A A-A B B-B A B RE 194/8.215, Bosch Rexroth AG

30 AZPJ External gear pump Notes for commissioning Notes for commissioning General Pumps delivered by Bosch Rexroth are tested for function and performance. No changes of any nature may be made, otherwise the warranty is rendered void. The pump may only be operated with the permissible data (see page 8). 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. Characteristic curves When dimensioning the gear pump, observe the maximum possible application data on the basis of the characteristic curves shown starting on page 1. Filter recommendation Premature failures in external gear pumps are largely caused by contaminated hydraulic fluid. Since there is no warranty for wear caused by contamination, Bosch Rexroth recommends a filtration compliant with cleanliness level 2/18/15 ISO 446, which reduces the degree of contamination to a permissible measure in terms of the size and concentration of the dirt particles: Working pressure [bar] >16 <16 Contamination class ISO /15 19/16 To be reached with β X = 75 2 Bosch Rexroth recommends that a full-flow filter is always used. Basic contamination of the hydraulic fluid used may not exceed class 2/18/15 according to ISO 446. Experience has shown that new fluids quite often lie above this value. In such instances, a filling device with a special filter should be used. Scope of delivery The scope of delivery contains the components with the properties as described under type codes and dimensions starting on page 21. Further information Further information on installation, commissioning, and operation can be found in the publication 712 B1: General Operating Instructions for External Gear Units. Extensive notes and suggestions can be found in the Hydraulic Trainer, volume 3: Planning and Design of Hydraulic Power Systems, order number R Bosch Rexroth AG, RE 194/8.215

31 External gear pump AZPJ Order number overview 31 Order number overview Order number Page Order number Page RE 194/8.215, Bosch Rexroth AG

32 32 AZPJ External gear pump AZ configurator 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 1 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: 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: Download the Android app: Bosch Rexroth AG Mobile applications Robert-Bosch-Straße Schwieberdingen, Germany Tel brm-az.info@boschrexroth.de This document, as well as the data, specifications and other information set forth in it, are the exclusive property of Bosch Rexroth AG. It may not be reproduced or given to third parties without our consent. The data specified above only serve to describe the product. No statements concerning a certain condition or suitability for a certain application can be derived from our information. The information given does not release the user from the obligation of own judgment and verification. It must be remembered that our products are subject to a natural process of wear and aging. Bosch Rexroth AG, RE 194/8.215