Internal gear pump, fixed displacement

Transcription

1 Internal gear pump, fixed displacement RE 023/04.05 Replaces: /24 Type GF Frame sizes, 2 and 3 Component series: 2X (F and 2) 3X (F3) Maximum operating pressure 250 bar Maximum displacement.7 to 40 cm 3 H758 Type GF for direct mounting H763 Type GF3 3-fold combination Table of contents Features Contents age Features Ordering code 2 Function, section, symbol 3 Technical data 4 and 5 Characteristic curves 6 to 8 Unit dimensions 9 to 7 uction and pressure ports 8 and 9 Multiple pumps 20 Installation notes 2 Commissioning notes 22 Engineering notes 23 Fixed displacement Low operating noise Low flow pulsation High efficiency even at low viscosity due to sealing gap compensation Long service life due to plain bearings and sealing gap compensation uitable for a wide viscosity and speed range Excellent suction characteristics All frame sizes and sizes can be combined with each other Can be combined with GH internal gear pumps, V7 vane pumps and axial piston pumps Valve technology can be integrated in the cover plate on enquiry

2 2/24 Bosch Rexroth AG Hydraulics GF RE 023/04.05 Ordering code G F * eries Medium-pressure pump = F Frame size - component series F component series 2X = 2X (component series 20 to 29: unchanged installation and connection dimensions) F2 component series 2X = 2 2X (component series 20 to 29: unchanged installation and connection dimensions) F3 component series 3X = 3 3X (component series 30 to 39: unchanged installation and connection dimensions) ize ize F F F Order example: Material-Nummer: Displacement/ revolution.7 cm cm cm cm 3 4. cm cm cm cm 3.0 cm cm cm cm cm cm cm cm cm cm 3 GF2 2X/0RE0VE4 R =,7 = 2,2 = 2,8 = 3,2 = 4, = 5,0 = 006 = 008 = 0 = 03 = 06 = 09 = 022 = 020 = 022 = 025 = 032 = 040 Not all of the variants according to the type code are possible! lease select the requested pump on the basis of the selection table (preferred types, pages 9 to 7) or consult Bosch Rexroth! pecial options on enquiry (e.g. integrated valve technology). R = L = K4 = E4 = U2 = M = = = 2 = N = D = K = Further details in clear text Options Anti-cavitation valve ressure relief valve Cover plate for mounting the next smaller size Mounting flange centring pecial flange to IO (for truck TO) 4-hole mounting flange to IO 309/2 and VDMA part AE 2-hole mounting flange 2-hole mounting, centring Ø 32 mm (F), centring Ø 52 mm (F2 and 3) 2 hole mounting, centring Ø 50 mm 2-hole mounting, centring Ø mm 2-hole mounting, centring Ø 63 mm eal material V = FKM seals lease observe our regulations to data sheet RE 07075! uction and pressure port 0 = B to IO 228/ 07 = AE flange connection 20 = quare flange connection to DIN 390 or DIN 3902, metric mounting thread haft versions A = Cylindrical E = Cylindrical with output T = Involute splines J = Involute splines with output N = Two flats for claw coupling L = Two flats for claw coupling with output = Conical : 5 O = Conical with output : 5 Direction of rotation (viewed to shaft end) Clockwise Counter-clockwise

3 RE 023/04.05 GF Hydraulics Bosch Rexroth AG 3/24 Function, section, symbol ymbol 4 9 F A Design GF hydraulic pumps are leak gap-compensated internal gear pumps with a fi xed displacement. They basically consist of a housing (), bearing cover (.), cover plate (.2), internal gear (2), pinion shaft (3), plain bearings (4), axial discs (5) and stop pin (6) as well as the segment assembly (7), which is composed of a segment (7.), segment carrier (7.2) and the sealing rolls (7.3). uction and displacement process The pinion (3) which is carried in hydro-dynamic bearings drives the internally toothed ring gear (2) in the direction of rotation shown. During rotation, the volume is increased in the suction area at an angle of approx. 80. A negative pressure is generated and fl uid fl ows into the chambers. The sickle-shaped segment assembly (7) separates the suction chamber from the pressure chamber. Within the pressure chamber the teeth of the pinion (3) mesh with the tooth spaces of the internal gear (2). The fl uid is then displaced through the pressure channel (). Axial compensation Axial compensation force F A acts in the area of the pressure chamber and is generated by the pressure field (8) in the axial discs (5) The axial longitudinal gaps between rotating and fixed parts are therefore extremely small and ensure optimum axial sealing of the pressure chamber. 8 F A Radial compensation Radial compensation force F R acts on the segment (7.) and seg ment carrier (7.2) F R The area ratios and the position of the sealing rolls (7.3) between the segments and the segment carrier are designed to provide virtually leak gap-free sealing between the internal gear (2), the segment assembly (7) and the pinion (3). pring elements under the sealing rolls (7.3) ensure adequate contact pressure, even at very low pressures. Hydrodynamic and hydrostatic bearing The forces acting on the pinion shaft (3) are absorbed by the hydrodynamically lubricated radial plain bearings (4), while those acting on the internal gear (2) are absorbed by the hydrostatic bearing (9). Tooth form Involute teeth were selected for the gear. Their long length of contact results in low flow and pressure pulsation; these low pulsation rates greatly contribute to low-noise operation.

4 4/24 Bosch Rexroth AG Hydraulics GF RE 023/04.05 Technical data (for applications outside these parameters, please consult us!) General Design Type Internal gear pump, gap-compenated GF Mounting type 2-hole mounting, AE 2-hole mounting flange to IO 309/, 4-hole mounting to VDMA part and IO 309/2 ipe connections quare flange connection; AE flange connection; B to IO 228/ Installation orientation haft loading Direction of rotation (viewed to shaft end) Frame size Optional Radial and axial forces (e.g. pulley) only after consultation Clockwise or counter-clockwise not reversing! ize ize Weight m kg F peed range ) n min min 600 n max min Displacement V cm Flow 2) q V L/min Operating pressure, absolute Inlet p bar 0.8 to 2 Output, continuous p max bar Output, intermittent 3) p max bar Min. required drive power at p = 0 bar kw Frame size ize ize Weight 4) m kg peed range ) n min min F2 n max min Displacement V cm Flow 2) q V L/min Operating pressure, absolute Inlet p bar 0.6 to 3 Output, continuous p max bar Output, intermittent 3) p max bar Min. required drive power at p = 0 bar kw For footnotes, see page 5

5 RE 023/04.05 GF Hydraulics Bosch Rexroth AG 5/24 Technical data (for applications outside these parameters, please consult us!) Frame size ize ize Weight 4) m kg F3 peed range ) n min min 500 n max min Displacement V cm Flow 2) q V L/min Operating pressure, absolute Inlet p bar 0.6 to 3 Outlet, continuous p max bar Outlet, intermittent 3) p max bar Min. required drive power at p = 0 bar kw Hydraulic Hydraulic fluid 5) HL mineral oil to DIN 5524 part / HL - mineral oil to DIN 5524 part 2 lease note our regulations according to data sheet RE 07075! Hydraulic fluid temperature range C 20 to + 00; for other temperatures, please consult us! Ambient temperature range C 20 to + 60 Viscosity range mm 2 /s 0 to 300; permissible starting viscosity 2000 Max. permissible degree of contamination of the hydraulic fluid Cleanliness class to IO 4406 (c) Class 20/8/5 6) ermissible radial loading of the pinion On enquiry shaft ) In the case of other speeds, please consult us (e.g. impulse control) 2) Measured at n = 450 min and p = 0 bar 3) Max 6 s, not exceeding 5 % of the duty cycle, max load cycles 4) For pumps with 2-hole mounting as flanged version Frame size 2 approx. 0.9 kg heavier Frame size 3 approx..0 kg heavier 5) Other fluids on enquiry 6) The cleanliness classes specified for components must be adhered to in hydraulic systems. Effective filtration prevents malfunction and at the same time prolongs the service life of components. For the selection of filters, see data sheets RE 50070, RE 50076, RE 5008, RE and RE

6 6/24 Bosch Rexroth AG Hydraulics GF RE 023/04.05 Average characteristic curve values of frame size (measured at n = 450 min ; ν = 46 mm 2 /s and ϑ = 40 C) Flow 7,5 7 6 ize 5 Flow in L/min ize,7 ize 4, ize 3,2 ize 2,8 ize 2, Efficiency 00 Efficiency in % ize 5 ize,7 ize 4, ize 3,2 ize 2,8 ize 2, Drive power 3,5 3 ize 5 ize 4, Drive power in kw 2 ize,7 ize 3,2 ize 2,8 ize 2, Noise pressure level Measured in the low-reflexion anechoic chamber in line with DIN 45635, sheet 26 Distance between microphone pumps = m Noise pressure level in db(a) ize 5 ize, ize 4, ize 3,2 ize 2,8 ize 2,2

7 RE 023/04.05 GF Hydraulics Bosch Rexroth AG 7/24 Average characteristic curve values of frame size 2 (measured at n = 450 min ; ν = 46 mm 2 /s and ϑ = 40 C) Flow 35 Flow in L/min ize 22 ize 9 ize 6 ize 3 ize ize 8 ize 6,3 Efficiency 00 Efficiency in % ize 22 ize 6; ize 9 ize ; ize 3 ize 6,3; ize Drive power Drive power in kw ize 22 ize 9 ize 6 ize 3 ize ize 8 ize 6, Noise pressure level Measured in the low-reflexion anechoic chamber in line with DIN 45635, sheet 26 Distance between microphone pumps = m Noise pressure level in db(a) ize 22 ize ize 9 ize 6 ize 3 ize 8 ize 6,3

8 8/24 Bosch Rexroth AG Hydraulics GF RE 023/04.05 Average characteristic curve values of frame size 3 (measured at n = 450 min ; ν = 46 mm 2 /s and ϑ = 40 C) Flow Efficiency Drive power Noise pressure level Measured in the low-reflexion anechoic chamber in line with DIN 45635, sheet 26 Distance between microphone pumps = m Noise pressure level in db(a) Drive power in kw Efficiency in % Flow in L/min ize 22 ize ize 40 ize ize ize 32 ize 25 ize 32; size 25 ize 22 ize 40; size 20 ize 32 ize 25 ize 22 ize 20 ize 32 ize 25 ize 22 ize 20

9 RE 023/04.05 GF Hydraulics Bosch Rexroth AG 9/24 Unit dimensions and selection tables for frame size (nominal dimensions in mm) R GF-2X/ A0V (cylindrical drive shaft) L Material no. Material no. Dimensions Type ize R clockwise L counter-clockwise a b c GF-2X/,7.A0V R R G /4; 4 G /4; 2.5 GF-2X/ 2,2.A0V R R G /4; 4 G /4; 2.5 GF-2X/ 2,8.A0V R R G 3/8; 4 G /4; 2.5 GF-2X/ 3,2.A0V R R G 3/8; 4 G /4; 2.5 GF-2X/ 4,.A0V R R G 3/8; 4 G 3/8; 2.5 GF-2X/ 5,0.A0V R R G /2; 4 G 3/8; , c ±0,5 b +0,4 26 Ø 9 Ø 45,24 0,05 3,5 Ø 2 h7 6,5 0,3 9, , a ±0,5 4 h9 Through hole for socket head cap screw M8 DIN 92 Tightening torque M T = 25 (+5) Nm b = Clamping length GF-2X/ RE0VU2 (cylindrical drive shaft with output); clockwise rotation Material no. Dimensions Type ize a b c d GF-2X/,7 RE0VU2 R G /4; 4 G /4; 2.5 GF-2X/ 2,2 RE0VU2 R G /4; 4 G /4; 2.5 GF-2X/ 2,8 RE0VU2 R G 3/8; 4 G /4; 2.5 GF-2X/ 3,2 RE0VU2 R G 3/8; 4 G /4; 2.5 GF-2X/ 4, RE0VU2 R G 3/8; 4 G 3/8; 2.5 GF-2X/ 5,0 RE0VU2 R G /2; 4 G 3/8; 2.5 Width 4 h9 Ø82,55 h8 3,5 Ø2 h7 24 0,2 d b 6,5 0,3 X X 44,5 46 6,4 0, ,35 +0,3 a ±0,5 c ±0,5 Through hole for socket head cap screw M8 DIN 92 Tightening torque M T = 25 (+5) Nm b = Clamping length 88 06,4 30

10 0/24 Bosch Rexroth AG Hydraulics GF RE 023/04.05 Unit dimensions and selection tables for frame size (nominal dimensions in mm) GF-2X/ R N0VM (drive shaft for claw coupling); rear pump L Material no. Material no. Dimensions Type ize R clockwise L counter-clockwise a b d GF-2X/,7.N0VM R R G /4; 4 G /4; 2.5 GF-2X/ 2,2.N0VM R R G /4; 4 G /4; 2.5 GF-2X/ 2,8.N0VM R R G 3/8; 4 G /4; 2.5 GF-2X/ 3,2.N0VM R R G 3/8; 4 G /4; 2.5 GF-2X/ 4,.N0VM R R G 3/8; 4 G 3/8; 2.5 GF-2X/ 5,0.N0VM R R G /2; 4 G 3/8; 2.5 d ±0,5 b +0,4 9 0,2 2 0,025 0,064 Ø 32 Ø 24 Ø 2 0, 4,8 +0, 0,4 +0,2 6,5 0,3 9,5 26 Ø , , a ±0,5 c ±0,5 Through hole for socket head cap screw M8 DIN 92 Tightening torque M T = 25 (+5) Nm GF-2X/ 5,0.L0VM R R ,2 60,4 78,4 72,4 G /2; 4 G 3/8; 2,5 d ±0,5 b +0,4 8,5 0,2 2 0,025 0,064 Ø 32 Ø 24 Ø 2 0, 4,8 +0, 0,4 +0,2 6,5 0,3 9, ,04 0,09 2 Follower, material no. R included in scope of supply b = Clamping length R GF-2X/ L L0VM (drive shaft for claw coupling with output); mddle pump Material no. Material no. Dimensions Type ize R clockwise L counter-clockwise a b c d GF-2X/,7.L0VM R R ,6 49, 67, 6, G /4; 4 G /4; 2,5 GF-2X/ 2,2.L0VM R R ,6 49, 67, 6, G /4; 4 G /4; 2,5 GF-2X/ 2,8.L0VM R R ,7 5,4 69,4 63,4 G 3/8; 4 G /4; 2,5 GF-2X/ 3,2.L0VM R R ,5 53,0 7,0 65,0 G 3/8; 4 G /4; 2,5 GF-2X/ 4,.L0VM R R ,4 56,7 74,7 68,7 G 3/8; 4 G 3/8; 2, Ø ,5 76 Through hole for socket 7 0, a ±0,5 26 head cap screw M8 DIN 92 Tightening torque M T = 25 (+5) Nm 2 Follower, material no. R included in scope of supply b = Clamping length ,04 0,09

11 RE 023/04.05 GF Hydraulics Bosch Rexroth AG /24 Unit dimensions and selection tables for frame size 2 (nominal dimensions in mm) GF2-2X/ R N VM (drive shaft for claw coupling); rear pump L Material no. Material no. Dimensions Type ize R clockwise L counter-clockwise a b d GF2-2X/ 006.N0VM R R G 3/4; 6 G /2; 4 GF2-2X/ 008.N0VM R R G 3/4; 6 G /2; 4 GF2-2X/ 0.N0VM R R G 3/4; 6 G /2; 4 GF2-2X/ 03.N20VM R R Ø20. C Ø40 ) Ø2. C Ø35 ) GF2-2X/ 06.N20VM R R Ø20. C Ø40 ) Ø2. C Ø35 ) GF2-2X/ 09.N20VM R R Ø26. C Ø55 ) Ø2. C Ø35 ) GF2-2X/ 022.N20VM R R Ø26. C Ø55 ) Ø2. C Ø35 ) ) C = pitch circle 2 0,2 Ø 52 0,03 0,06 2 Ø 39 Ø 37 Ø 7,8 7,2 ±0,2 3 +0,2 b +0,4 6,5 +0,2 a ±0,5 Through hole for socket head cap screw M8 DIN 92 d ±0,5 Tightening torque M T = 25 (+5) Nm 2 Follower, material no. R included in sope of supply 2 Connection 0 Ø 9 +0,5 7,7 ±0,5 38,7 ±0,3 23,3 ±0, ±0,3 3 ±0,3 8 0,025 0,085 9 for connection 0 05 for connection 20 b = Clamping length GF2-2X/ R L VM (drive shaft for claw coupling with output); middle pump L Material no. Material no. Dimensions Type ize R clockwise L counter-clockwise a b c d GF2-2X/ 006.L0VM R R G 3/4; 6 G /2; 4 GF2-2X/ 008.L0VM R R G 3/4; 6 G /2; 4 GF2-2X/ 0.L0VM R R G 3/4; 6 G /2; 4 GF2-2X/ 03.L20VM R R Ø20. C Ø40 ) Ø2. C Ø35 ) GF2-2X/ 06.L20VM R R Ø20. C Ø40 ) Ø2. C Ø35 ) GF2-2X/ 09.L20VM R R Ø26. C Ø55 ) Ø2. C Ø35 ) GF2-2X/ 022.L20VM R R Ø26. C Ø55 ) Ø2. C Ø35 ) ) C = pitch circle d 9 for connection 0 b 05 for connection ,2 3 ±0,3 3 ±0,3 Connection 0 48 ±0,8 46 ±0, ,2 Ø52 0,03 0,06 Ø47,6 +0,2 Ø39 Ø7,8 23,3 ±0,3 38,7 ±0,3 Ø9 48, ±0,8 45,9 ±0,8 7,2 ±0,2 6,5 +0,2 3 +0,2 a c 8 Through hole for 0,025 0,085 head cap screw M8 DIN 92 Tightening torque M T = 25 (+5) Nm 2 Follower, material no. R included in scope of supply b = Clamping length

12 2/24 Bosch Rexroth AG Hydraulics GF RE 023/04.05 Unit dimensions and selection tables for frame size 2 (nominal dimensions in mm) GF2-2X/ RA V2 (cylindrical drive shaft); clockwise rotation Material no. Dimensions Type ize a b c GF2-2X/ 006 RA0V2 R G 3/4; 6 G /2; 4 GF2-2X/ 008 RA0V2 R G 3/4; 6 G /2; 4 GF2-2X/ 0 RA0V2 R G 3/4; 6 G /2; 4 GF2-2X/ 03 RA20V2 R Ø20, C Ø40 ) Ø2, C Ø35 ) GF2-2X/ 06 RA20V2 R Ø26, C Ø55 ) Ø2, C Ø35 ) GF2-2X/ 09 RA20V2 R Ø26, C Ø55 ) Ø2, C Ø35 ) ) C = pitch circle Connection b +0,4 Ø 9 +0,5 3 ±0,3 3 ±0,3 6 h6 Ø 63 0,05 0,0 20,5 35 7,7 ±0,5 38,7 ±0,3 23,3 ±0,3 (7,7) 48 ±0,8 46 7,2 ±0,2 a ±0,5 c ±0,5 Through hole for socket head cap screw M8 DIN 92 Tightening torque M A = 25 (+5) Nm b = Clamping length 8 j6 9 for connection 0 05 for connection 20 GF2-2X/ RE VE4 (cylindrical drive shaft with output); clockwise rotation Material no. Dimensions Type ize a c d GF2-2X/ 006 RE0VE4 R G 3/4; 6 G /2; 4 GF2-2X/ 008 RE0VE4 R G 3/4; 6 G /2; 4 GF2-2X/ 0 RE0VE4 R G 3/4; 6 G /2; 4 GF2-2X/ 03 RE20VE4 R Ø20, C Ø40 ) Ø2, C Ø35 ) GF2-2X/ 06 RE20VE4 R Ø20, C Ø40 ) Ø2, C Ø35 ) GF2-2X/ 09 RE20VE4 R Ø26, C Ø55 ) Ø2, C Ø35 ) GF2-2X/ 022 RE20VE4 R Ø26, C Ø55 ) Ø2, C Ø35 ) ) C = pitch circle d 9 Ø 80 h ,7 ±0,5 48 ±0, h9 Ø 20 j6 22, ,5 0 ±0,5 a ±0,5 c ±0,5 Connection ±0.8 for connection 0 05 ±0.8 for connection 20

13 RE 023/04.05 GF Hydraulics Bosch Rexroth AG 3/24 Unit dimensions and selection tables for frame size 2 (nominal dimensions in mm) GF2-2X/ R L J.VU2 (splined drive shaft with output) Material no. Material no. Dimensions Type ize R clockwise L counter-clockwise a c d GF2-2X/ 006 RJ0VU2 R R G 3/4; 6 G /2; 4 GF2-2X/ 008 RJ0VU2 R R G 3/4; 6 G /2; 4 GF2-2X/ 0 RJ0VU2 R R G 3/4; 6 G /2; 4 GF2-2X/ 03 RJ20VU2 R R Ø20, C Ø40 ) Ø2, C Ø35 ) GF2-2X/ 06 RJ20VU2 R R Ø20, C Ø40 ) Ø2, C Ø35 ) GF2-2X/ 09 RJ20VU2 R R Ø26, C Ø55 ) Ø2, C Ø35 ) GF2-2X/ 022 RJ20VU2 R R Ø26, C Ø55 ) Ø2, C Ø35 ) Involute spline AE J 498 b 9T 6/32 D 30 d Connection 20 ) C = pitch circle 30 9 for connection 0 05 for connection 20 82,55 h ,7 ±0, a ±0,5 3,5 c ±0,5 06,4 ±0,3 GF2-2X/ RT20VU2 (splined drive shaft) Material no. Dimensions Type ize R clockwise a c GF2-2X/ 006 RT20VU Ø20; C Ø40 ) Ø2; C Ø35 ) GF2-2X/ 008 RT20VU2 R Ø20; C Ø40 ) Ø2; C Ø35 ) GF2-2X/ 0 RT20VU Ø20; C Ø40 ) Ø2; C Ø35 ) GF2-2X/ 03 RT20VU2 R Ø20; C Ø40 ) Ø2; C Ø35 ) GF2-2X/ 06 RT20VU2 R Ø20; C Ø40 ) Ø2; C Ø35 ) GF2-2X/ 09 RT20VU2 R Ø26; C Ø55 ) Ø2; C Ø35 ) ) C = pitch circle Involute spline AE J 498 b 9T 6/32 D 30 Connection ±0,6 Ø82,55 h8 6,5x ,7 ±0, a ±0,5 3,5 c 0,5x45 06,4 ±0,3 R80

14 30 Ø20 0,06 0,08 M4x, , Ø 52 0,03 4/24 Bosch Rexroth AG Hydraulics GF RE 023/04.05 Unit dimensions and selection tables for frame sizes 2 and 3 (nominal dimensions in mm) GF2-2X/ R20VU2 (conical drive shaft) Material no. Dimensions Type ize R clockwise a c GF2-2X/ 006 R20VU2 R Ø20; C Ø40 ) Ø2; C Ø35 ) GF2-2X/ 008 R20VU2 R Ø20; C Ø40 ) Ø2; C Ø35 ) GF2-2X/ 0 R20VU2 R Ø20; C Ø40 ) Ø2; C Ø35 ) GF2-2X/ 03 R20VU2 R Ø20; C Ø40 ) Ø2; C Ø35 ) GF2-2X/ 06 R20VU2 R Ø20; C Ø40 ) Ø2; C Ø35 ) GF2-2X/ 09 R20VU2 R Ø26; C Ø55 ) Ø2; C Ø35 ) GF2-2X/ 022 R20VU2 R Ø26; C Ø55 ) Ø2; C Ø35 ) Conical shaft end, similar to DIN IO 659, without woodruff key groove c ±0,5 haft protection Tightening torque 05 (+0) Nm ) C = pitch circle 5 ±0,2 6 ±0,2 7,8 +0,5 0,2 4,8 ±0,4 a ±0,5 Connection 20 06,4 ±0,3 R GF3-3X/ L N VM (drive shaft for claw coupling); counter-clockwise rotation; rear pump Material no. Material no. Dimensions Type ize R clockwise L counter-clockwise a b d GF3-3X/ 020.N20VM R R Ø26, C Ø55 ) Ø2, C Ø35 ) GF3-3X/ 022.N20VM R R Ø26, C Ø55 ) Ø2, C Ø35 ) GF3-3X/ 025.N20VM R R Ø26, C Ø55 ) Ø2, C Ø35 ) GF3-3X/ 032.N07VM R R AE /4 AE 3/4 GF3-3X/ 040.N07VM R R AE /4 AE 3/4 ) C = pitch circle d b +0,5 +0, ,6 36 ±0,3 36 ±0,3 9,5 Ø 42 0,06 Ø 44 Ø 24,5 3,2 7,4 44,5 ±0,8 65,5 ±0,8 28,6 36 ±0,3 36 ±0,3 7,2 a Through hole for socket head cap screw M0 DIN 92 Tightening torque M T = 49 (+5) Nm Anschluss ,025 0,085 2 Follower, material no. R included in scope of supply b = Clamping length

15 RE 023/04.05 GF Hydraulics Bosch Rexroth AG 5/24 Unit dimensions and selection tables for frame size 3 (nominal dimensions in mm) GF3-3X/ R J07VU2 (splined drive shaft with output) L Material no. Material no. Dimensions Type ize R clockwise L counter-clockwise a c d GF3-3X/ 020.J07VU2 R R AE /4 AE 3/4 GF3-3X/ 022.J07VU2 R R AE /4 AE 3/4 GF3-3X/ 025.J07VU2 R R AE /4 AE 3/4 GF3-3X/ 032.J07VU2 R R AE /4 AE 3/4 GF3-3X/ 040.J07VU2 R R AE /4 AE 3/4 40,9 d 6 a Connection Ø 0,6 h8 25,5 7,4 3 2 Involute spline AE 744 b 3T 6/32 D 30 c 26 GF3-3X/ RE07VE4 (cylindrical drive shaft with output); clockwise rotation Material no. Dimensions Type ize a c d GF3-3X/ 020 RE07VE4 R AE /4 AE 3/4 GF3-3X/ 022 RE07VE4 R AE /4 AE 3/4 GF3-3X/ 025 RE07VE4 R AE /4 AE 3/4 GF3-3X/ 032 RE07VE4 R AE /4 AE 3/4 GF3-3X/ 040 RE07VE4 R AE /4 AE 3/4 9 a Connection 07 Ø 00 h8 Ø 25 j6 42 7,4 max h d c max

16 6/24 Bosch Rexroth AG Hydraulics GF RE 023/04.05 Unit dimensions and selection tables for frame size 3 (nominal dimensions in mm) GF3-3X/ R L07VM (drive shaft for claw coupling with output); middle pump L Material no. Material no. Dimensions Type ize R clockwise L counter-clockwise a b c d GF3-3X/ 020 L07VM R R AE /4 AE 3/4 GF3-3X/ 022 L07VM R R AE /4 AE 3/4 GF3-3X/ 025 L07VM R R AE /4 AE 3/4 GF3-3X/ 032 L07VM R R AE /4 AE 3/4 GF3-3X/ 040 L07VM R R AE /4 AE 3/4 7,2 a ±0,5 3 +0,4 +0,2 b +0,4 d Connection ±0,5 36 ±0,3 36 ±0,3 Ø42 Ø32 9,5 2 Ø44 Ø52 0,03 0,06 c ±0,5 Through hole for socket head cap screw M0 DIN 92 Tightening torque M T = 49 (+5) Nm 7,4 65,5 ±0,8 44,5 ±0,8 0 0,025 0,085 24,5 h 36 ±0,3 36 ±0,3 2 Follower, mat. no. R included in scope of supply b = Clamping length GF3-3X/ R07VM (conical drive shaft) Material no. Dimensions Type ize R clockwise a b c GF3-3X/ 020 R07VM R AE /4 AE 3/4 GF3-3X/ 022 R07VM R AE /4 AE 3/4 GF3-3X/ 025 R07VM R AE /4 AE 3/4 GF3-3X/ 032 R07VM R AE /4 AE 3/4 GF3-3X/ 040 R07VM R AE /4 AE 3/4 Connection 07 8 a ±0,5 b ±0, ±0,6 36 ±0,3 36 ±0,3 Ø52 0,03 0,06 Ø25 0,06 0,08 M8x,5 2 9 (25) +0,5 0,2 55 ±0,4 c haft end conical, similar to DIN IO 659, without woodruff key groove Ø0,5 Ø8 44,5 ±0,8 65,5 ±0,8 2 Tightening torque 70 (+0) Nm 3 Fixing screw M0, tightening torque 49 (+5) Nm b = Clamping length 28,6 36 ±0,3 36 ±0,3

17 RE 023/04.05 GF Hydraulics Bosch Rexroth AG 7/24 Unit dimensions and selection tables for frame size 3 (nominal dimensions in mm) GF3-3X/ R O07VK4 (conical drive shaft with output) L Material no. Material no. Dimensions Type ize R clockwise L counter-clockwise a b c GF3-3X/ 020.O07VK4 R R AE /4 AE 3/4 GF3-3X/ 022.O07VK4 R R AE /4 AE 3/4 GF3-3X/ 025.O07VK4 R R AE /4 AE 3/4 GF3-3X/ 032.O07VK4 R R AE /4 AE 3/4 GF3-3X/ 040.O07VK4 R R AE /4 AE 3/4 plined shaft profile B8x32x35 similar to DIN IO 4 (slip-on sleeve) ,8 0,4 a b Connection 07 Hexagon socket A/F7; M T = 70 (+25) Nm 80 Ø80 h8 Ø34,9 0, 5 Ø8 H3 7, R05 R05 9 Washer 30 x.5 DIN 47 c

18 8/24 Bosch Rexroth AG Hydraulics GF RE 023/04.05 uction and pressure ports (nominal dimensions in mm) GF, type of connection 0 B thread to IO 228/ uction port dimensions ressure port dimensions ize s f p g,7 G /4; 4 23 G /4; ,2 G /4; 4 23 G /4; ,8 G 3/8; 4 26 G /4; ,2 G 3/8; 4 26 G /4; , G 3/8; 4 26 G 3/8; ,0 G /2; 4 27 G 3/8; GF2, type of connection 0 B thread to IO 228/ uction port dimensions ressure port dimensions ize s f p g 006 G 3/4; 6 35 G /2; G 3/4; 6 35 G /2; G 3/4; 6 35 G /2; G 3/4; 6 35 G /2; G ; 8 40 G /2; G ; 8 40 G /2; G ; 8 40 G /2; 4 35 Øf; Øg Øs; Øp GF2, type of connection 20 square flange connection uction port dimensions ressure port dimensions ize d b C Thread t M in Nm d b C Thread t M in Nm M M M M M M M M M M M M M M6 2 0 b TK d ±0,2 b G x t Tightening torque: M GF3, type of connection 20 square flange connection uction port dimensions ressure port dimensions ize d b C Thread t M in Nm d b C Thread t M in Nm M M M M M M M M M M GF3, Type of connection 07 AE flange connection uction port AE /4 58,7 ±0,2 29,3 30,2 ±0,2 5, Ø32 ressure port AE 3/4 47,6 ±0,2 23,8 22,3, d ize d M0; 5 +3 deep Tightening torque: 49 (+5) Nm

19 RE 023/04.05 GF Hydraulics Bosch Rexroth AG 9/24 uction and pressure flanges Connection 20 ressure flange types GF2 and GF3 of sizes 020, 022 and 025 with pitch circle Ø 35 mm Flange type Designation Material no. Flange QA 35,0 4x6,4 L0 N35 R Flange QA 35,0 4x6,4 L2 N35 R Flange QA 35,0 4x6,4 6 N35 R Angled flange QA 35,0 4x6,4 L0 N35 R Angled flange QA 35,0 4x6,4 L2 N35 R Angled flange QA 35,0 4x6,4 L8 N250 R Angled flange QA 35,0 4x6,4 6 N35 R Angled flange QA 35,0 4x6,4 20 N35 R uction flange types GF2 and GF3 of sizes 006 to 06 with pitch circle Ø 40 mm Flange type Designation Material no. Flange QA 40,0 4x6,4 L8 N00 R Flange QA 40,0 4x6,4 L22 N00 R Flange QA 40,0 4x6,4 L28 N00 R Angled flange QA 40,0 4x6,4 L8 N00 R Angled flange QA 40,0 4x6,4 L22 N00 R Angled flange QA 40,0 4x6,4 L28 N00 R uction and pressure flange type GF3 of sizes 020 to 040 and FG2 of sizes 09 and 022 with pitch circle Ø 55 mm, p max 00 bar Flange type Designation Material no. Flange QA 55,0 4x8,4 L42 N00 R Angled flange QA 55,0 4x8,4 L42 N00 R For dimensions and detailed information, see AB and RN Connection 07 uction flange type GF3 Designation AE /4-G /4 (with threaded connection) AE /4-42,0x3,0 (with welded neck) Material no. R R ressure flange type GF3 Designation AE 3/4-G 3/4 (with threaded connection) AE 3/4-25,0x4,0 (with welded neck) AE 3/4-20,0x3,0 (with welded neck) Material no. R R R For dimensions and detailed information, see AB 22-5.

20 20/24 Bosch Rexroth AG Hydraulics GF RE 023/04.05 Multiple pumps ordering code Internal gear pumps (e.g.) Double = 2 Triple = 3 eries of first pump ize of first pump eries of second pump ize of second pump eries of the third pump ize of the third pump 3 GF GF2 0 + GF 2,8 R E E4 Mounting flange of first pump ipe connection of third pump ipe connection of second pump ipe connection of first pump haft version of first pump Direction of rotation Multiple pumps engineering notes The valid general technical data are the same as for single pumps (see pages 4 and 5). Combined pumps must all have the same direction of rotation. The pump that is subjected to the greatest loads should be the first pump. The engineer must verify the maximum through-drive torque for every application. This is also valid for existing (coded) multiple pumps. Maximum drive torques in Nm haft N L A E J GF GF GF Common suction is not possible. For reasons of strength and stability, we recommend the use of IO 4-hole mounting flanges to VDMA E4 for combinations of three or more pumps. The drive torque of a pump stage can be calculated as follows: p V T = η hydr.-mech. T : drive torque in Nm p : operating pressure in bar V : displacement in cm 3 η : hydraulic-mechanical efficiency Maximum output torques in Nm haft N L A E J GF 4 4 GF GF Before operating pump combinations with different media, please consult Rexroth Hydraulics. GF combinations are assembled without combination parts The pumps are not sealed from each other. election: The front pump must have shaft version E, J or L. The middle pmp must have shaft version L. The rear pump must have shaft version N. If a pump of the next smaller frame size is to be mounted, the first pump must show K at the end of the designation (e.g. GF3 + GF2 front pump: GF3-3X/032RJ07VU2K) Dimensions: The dimensions of connections are the same as for single pumps (see page 8). The total length of the pump is obtained by adding up the dimensions d of the single pumps (see pages 9 to 7). With the combination of GF2 and GF the constructive length of GF2 (dimension d) increases by 4.5 mm. With the combination of GF3 and GF2 the constructive length of GF3 (dimension d) increases by 2 mm. With the combination of GF3 and GF the constructive length of GF3 (dimension d) increases by 2.5 mm.

21 RE 023/04.05 GF Hydraulics Bosch Rexroth AG 2/24 Installation notes Drive El. motor + pump mounting bracket + coupling + pump Fluid tank Adjust the useful capacity of the tank to the operating conditions The permissible fluid temperature must not be exceeded; if required, provide cooler No radial and axial forces permitted on the pump drive shaft! Motor and pump must be exactly aligned! Always use a coupling that is suitable for compensating for shaft offsets! When installing the coupling, avoid axial forces, that is, do not hammer or press the coupling onto the shaft! Use the female thread of the drive shaft! Lines and connections Remove protective plug from pump We recommend the use of seamless precision steel pipes according to DIN 239 and pipe connections that can be loosened elect the clear width of pipes according to the connections (suction velocity to.5 m/s) For inlet pressure, see page 5 Thoroughly clean pipes and fittings before their installation Recommendation for piping uctin line min 50 mm Installation positions B3 B5 V The returning oil must under no circumstances be reaspired directly, i.e. select the largest possible distance between suction and return line The return oil outlet must always be immersed in the oil Ensure suction-tight installation of the pipes Filters If possible, use return line or pressure filters. (Use suction filters only in conjunction with an underpressure switch/clogging indicator) Hydraulic fluid lease observe our regulations according to data sheet RE We recommend the use of branded hydraulic oils Different oil grades must not be mixed, since this can result in decomposition and deterioration of the lubricating properties The fluid must be changed at certain intervals depending on the operating conditions. This involves cleaning of the fluid tank from residues.

22 22/24 Bosch Rexroth AG Hydraulics GF RE 023/04.05 Commissioning notes reparations Check whether the system is thoroughly and properly installed. Fill the hydraulic fluid only in through filters with the required minimum retention rate. Fill the pump completely with hydraulic fluid via the suction or pressure tube. Check direction of rotation of the motor for compliance with the direction of rotation according to the pump type. Bleeding Open the bleeding port of the system by hand or change over to circulation at zero pressure in accordance with the operating instructions of the system. During bleeding, the pressureless transportation of entrapped air must be ensured. To bleed the pump, briefly switch the motor on and then switch it immediately off again (inching mode). Repeat this process until the pump is completely bled. Close the open bleeding ports by hand. Commissioning When it is ensured that the pump is completely bled, switch the motor on. Let the pump run at zero pressure until the system is completely bled. For system bleeding, observe the operating instructions for the system. Commission the system according to the operating instructions and let pumps run under load. After some time in operation, check the hydraulic fluid in the tank for bubbles or foaming on the surface. General umps delivered by us are tested for function and performance. Never make any changes of whatever nature to the pump, otherwise the warranty will become void! Repairs may only be carried out by the manufacturer or his authorised dealers and agencies. Repairs carried out by yourselves will not be covered by the warranty. Important notes Adjustments, maintenance and repair of the pump may only be carried out by authorised, trained and instructed personnel! Use only genuine Rexroth spare parts! The pump may only be operated at the permissible data (see pages 4 and 5). The pump may only be operated when in perfect condition! When carrying out any work on the pump (e.g. installation or removal), the system must be switched off and depressurised! Unauthorised conversions or changes that affect safety and function are not permitted! Attach protective guards (e.g. coupling protection)! Any existing protective guards must not be removed! The generally valid safety regulations and regulations for the Operation During operation, take note of changes in the noise emission. Due to warming up of the operating medium, a slight increase in the noise level is normal. A remarkable increase in the noise level or brief, stochastic changes in the noise characteristics can indicate the aspiration of air. In the case of too short suction pipes or low oil levels of the operating medium, air can also be sucked in through a vortex. Changes in the operating velocities, temperatures, increase in noise or power requirement indicate wear or damage to the system or the pump. Re-commissioning Inspect the pump and system for leakage. Loss of oil indicates leakage below the hydraulic fluid level. An increased hydraulic fluid level in the tank indicates leakage above the hydraulic fluid level. When the pump is arranged above the hydraulic fluid level, the pump can drain via leaking points, e.g. a worn-out shaft seal ring. In this case, it must be bled again during re-commissioning. Have the damage repaired. After repair and maintenance were carried out, re-bleeding is required. witch the motor on when the system is in flawless condition.

23 RE 023/04.05 GF Hydraulics Bosch Rexroth AG 23/24 Engineering notes Comprehensive notes and suggestions can be found in The Hydraulic Trainer, Volume 3 RE 0028, "notes on the planning and design of hydraulic systems". When using internal gear pumps, provide an additional manual, switchable or automatic bleeding option. The bleed point for manual bleeding must be provided in the pressure line upstream of the first valve or check valve in order that bleeding can be carried out at zero pressure. Technical data All technical data given depend on manufacturing tolerances and are valid in conjunction with certain boundary conditions. lease note that certain deviations are therefore possible, and that technical data may vary when boundary conditions (e.g. viscosity) change. Characteristic curves When dimensioning the drive motor, observe the max. permissible operating data on the basis of the characteristic curves shown on pages 6 to 8. Noise pressure level The noise pressure level values shown on pages 6 to 8 were measured in line with DIN 45635, page 26. This means that only the noise emitted by the pump is shown. Influences by the surroundings (such as place of installation, piping, etc.) were eliminated. The values always refer to only one pump. With internal gear pumps, the excitation of valves, pipes, machine parts, etc. is very low due to the low flow pulsation (approx. 2 to 3 %). Nevertheless, under unfavourable conditions, the noise pressure level at the place of installation of the power unit can be 5 to 0 db(a) higher than the values of the pump itself. ump combinations Internal gear pumps of series GF can be combined to form multi-flow pumps. In this context, please observe the permissible through-drive torques (see engineering aid for multi-flow pumps) as well as the fact that the operating media of the relevant pump stage are not separated by means of shaft seal rings. Caution! The operation of multi-flow pumps with different media is only possible after consultation.