RE / Gerotormotors (Low Speed High Torque Motors) Type GMS, GMSS, GMSW, GMT, GMTS, GMTW. Hydraulik Nord. Contents 1/26

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1 RE14 6/3.96 Gerotormotors (Low Speed High Torque Motors) Type GMS, GMSS, GMSW, GMT, GMTS, GMTW RE 14 6/3.96 Standard motor type GMS Standard motor type GMT Short motor type GMTS Contents Name page Characteristics, applications 1 Motor type: GMS, GMSS and GMSW Mode of operation, variants, section, symbol 2 Ordering code and weights 3,4 Technical data 5 Operating curve 6-9 Direction of shaft rotation 9 Permissible shaft load, Shaft version 1 Unit dimensions GMS 11 Unit dimensions GMSW 12 Unit dimensions GMSS 13 GMSS-assembly, leakage oil and add-on components 14 Motor type: GMT, GMTS and GMTW Ordering code and weights 14,15 Technical data 17 Operating curve 18-2 Direction of shaft rotation 2 Permissible shaft load 21 Shaft version 22 Unit dimensions GMT 23 Unit dimensions GMTW 24 Unit dimensions GMTS 25 GMTS-assembly, leakage oil and add-on components 26 Wheel motor type GMTW Characteristics: Very smooth running, even at low speeds Wide speed range Constant output torque over a wide speed range High starting torque Robust design capable of withstanding tough operating conditions Favorable power-to-weight ratio Operation without a leakage oil line, even when exposed to high backflow pressures Can be connected in series pplications: gricultural and forestry vehicles Conveyor systems Cranes and transport systems Municipal vehicles (road sweepers, snow clearers, road gritters, etc.) Construction machinery Mining equipment Winch drives Plastics machinery Wood processing machinery Machine tools Shipbuilding 1/26

2 RE 14 6/3.96 Functional Description, Section Gerotor motors are robust hydraulic driveline elements with universal applications. The Gerotor has a special design feature (Gerotor reduction) that allows low output speeds without the need for additional gear stages. In many cases, this can help to reduce costs and cut down weight. Gerotor motors are self-lubricating and practically maintenance-free, merely requiring a regular oil change. The Gerotor motors cover a torque spectrum from 1 danm to 1 danm and operate in a power range from 1 kw to 3 kw. Mode of operation: Gerotor motors are internally geared motors that convert hydraulic energy into mechanical energy. The Gerotor consists of a ring with an internal gear profile, and an excentric pinion mounted in this internal ring gear. The pinion has one tooth less than the internal ring gear and so only advances by one tooth space every time it rotates within the ring. This results in the speed reduction which ensures good low-speed characteristics and high output torques. cardan shaft with crowned profile on either end transmits the power from the pinion to the output shaft. Series GMS and GMT motors are controlled using a rotating disc valve driven by a second, shorter cardan shaft. Motor torque is dependent on the size of motor (cc per revolution) and the pressure differential between the inlet and outlet connections. Variants The motors offers a wide choice of special versions for particular applications in addition to its comprehensive range of standard motors. Wheel motors with recessed mounting flange Short motors for use with gearboxes 1 Prop shaft 2 Gerotor 3 Steering shaft 4 Disc valve 5 Output shaft 6 Taperd bearing 7 Check valve Symbols Type GMS, GMT 2/26

3 Ordering code and sample order (Type GMS, GMSS, GMSW) RE14 6/3.96 GM / * Type Series Standard motor = S 64 Short motor = SS 641 Wheel motor = SW 642 Displacement (cm 3 per revolution) Type GMS GMSS GMSW 81,4 81,4 81,4 8 F 13,65 13,65 13,65 1 G 125,9 125,9 125,9 125 H 162,9 162,9 162,9 16 K 23,6 23,6 23,6 2 L 251,7 251,7 251,7 25 M 325,75 325,75 325,75 32 N Size Code letter Further details in clear text Shaft GMS, GMSW 1 = cylindrical shaft 32 mm 2 = Involute splined shaft NS = Tapered shaft GMSS 1 = Cardan shaft Connections 1 = Metric 2 = Pipe thread Sample order: GMSW 125 (displacement = 125cm 3 per revolution) cylindrical shaft Ø 32mm Connection thread M22x1,5 / M14x1,5 Ordering code: GMSW 125 /642-H11 3/26

4 RE 14 6/3.96 Ordering code and weights (GMS, GMSS, GMSW) Standard motor GMS, Series 64 Shaft Connections GMS 8 GMS 1 GMS 125 GMS 16 GMS 2 GMS 25 GMS 32 M22x1,5 Cyl. shaft M14x1,5 64-F11 64-G11 64-H11 64-K11 64-L11 64-M11 64-N11 Ø 32mm G1/2 64-F21 64-G21 64-H21 64-K21 64-L21 64-M21 64-N21 M22x1,5 Involute M14x1,5 64-F12 64-G12 64-H12 64-K12 64-L12 64-M12 64-N12 splined shaft G1/2 64-F22 64-G22 64-H22 64-K22 64-L22 64-M22 64-N22 M22x1,5 Tapered M14x1,5 64-F13 64-G13 64-H13 64-K13 64-L13 64-M13 64-N13 shaft G1/2 64-F23 64-G23 64-H23 64-K23 64-L23 64-M23 64-N23 Weight (kg) 1,2 1,5 1,8 11,2 11,6 12,1 13, Short motor GMSS, Series 641 Shaft Connections GMSS 8 GMSS 1 GMSS 125 GMSS 16 GMSS 2 GMSS 25 GMSS 32 M22x1,5 Cardan M14x1,5 641-F G H K L M N11 shaft G1/2 641-F G H K L M N21 Weight (kg) 8,1 8,3 8,6 9, 9,4 9,9 1,6 Wheel motor GMSW, Series 642 Shaft Connections GMSW 8 GMSW 1 GMSW 125 GMSW 16 GMSW 2 GMSW 25 GMSW 32 M22x1,5 Cyl. shaft M14x1,5 642-F G H K L M N11 Ø 32mm G1/2 642-F G H K L M N21 M22x1,5 Invlute M14x1,5 642-F G H K L M N12 splined shaft G1/2 642-F G H K L M N22 M22x1,5 Tapered M14x1,5 642-F G H K L M N13 shaft G1/2 642-F G H K L M N23 Weight (kg) 1, ,3 11,7 12,1 12,6 13,3 Sample order: GMSW 125 (displacement 125 cm 3 per revolution) Cylindrical shaft Ø 32mm Connection thread M22x1,5 / M14x1,5 Ordering code: GMSW 125 / 642-H11 4/26

5 RE14 6/3.96 Technical Data : GMS, GMSS, GMSW (For applications outside these parameters, please consult us!) Motor size Geometric displacement cm 3 81,4 13,65 125,9 162,9 23,6 251,7 325,75 Max. speed min -1 continuous intermittent 1) Max. torque danm continuous intermittent 1) Max. power output kw continuous 16 17,5 17,5 15, ,5 11,5 intermittent 1) , ,5 Max. pressure drop bar continuous intermittent 1) Max. oil flow L/min continuous intermittent 1) Max. input pressure bar continuous 21 intermittent 1) 25 Max. return pressure without drain line or max. pressure in drain line 2) (-1 min -1 ) bar continuous 75 (1-3 min -1 ) bar continuous 5 (3-81 min -1 ) bar continuous 2 (-97 min -1 ) bar intermittent 1) 75 Max. return pressure with drain line bar continuous 14 intermittent 1) 175 Max. start pressure with unloaded shaft bar Min. start torque at max. pressure drop danm continuous Min. speed 3) min ) Intermittent operation: operation max. 1 % per minute 2) The pressure on the shaft seal is never greater than the backflow pressure because of the built-in non-return valves. In the GMSS, this pressure is determined based on the technical data of the add-on components. 3) You must expect that the motor will run less smoothly at speeds below those specified here. 5/26

6 RE 14 6/3.96 Operating Curves (measured at ν = 35mm 2 /s and t = 5 C) This performance data apply with a backflow pressure of 5-1 bar, using a mineral oil-based hydraulic oil with a viscosity of 35 mm 2 /s at 5 C. : Endurance operation : Intermittent operation (operation max. 1 % per minute) Note: Intermittent pressure drop must not coincide with fluctuations in the oil flow. Type GMS 8, GMSS 8, GMSW 8 M (da Nm) P (kw) η t (%) q v (L/min) p (bar) kw kw kw % 8 % 6 kw 9 kw 3 kw % n (min 1 ) Type GMS 1, GMSS 1, GMSW 1 M (da Nm) P (kw) η t (%) 15 kw 18 kw q v (L/min) p (bar) kw kw 9 kw % 85 % 8 % 3 kw n (min 1 ) 6/26

7 Operating Curves (measured at ν = 35mm 2 /s and t = 5 C) RE14 6/3.96 This performance data apply with a backflow pressure of 5-1 bar, using a mineral oil-based hydraulic oil with a viscosity of 35 mm 2 /s at 5 C. : Endurance operation : Intermittent operation (operation max. 1 % per minute) Note: Intermittent pressure drop must not coincide with fluctuations in the oil flow. Type GMS 125, GMSS 125, GMSW 125 M (da Nm) P (kw) η t (%) 18 kw q v (L/min) p (bar) kw 15 kw kw kw % 8 % 7 % 3 kw n (min 1 ) Type GMS 16, GMSS 16, GMSW 16 M (da Nm) P (kw) η t (%) q v (l/min) p (bar) kw kw 12 kw % 8 % 7 % 9 kw 6 kw 3 kw n (min 1 ) 7/26

8 RE 14 6/3.96 Operating Curves (measured at ν = 35mm 2 /s and t = 5 C) This performance data apply with a backflow pressure of 5-1 bar, using a mineral oil-based hydraulic oil with a viscosity of 35 mm 2 /s at 5 C. : Endurance operation : Intermittent operation (operation max. 1 % per minute) Note: Intermittent pressure drop must not coincide with fluctuations in the oil flow. Type GMS 2, GMSS 2, GMSW 2 M (da Nm) P (kw) η t (%) 15 kw 12 kw 8 kw 85 % 4 kw 8 % 7 % q v (L/min) p (bar) n (min 1 ) Type GMS 25, GMSS 25, GMSW 25 M (da Nm) q v (L/min) P (kw) η t (%) p (bar) 85 % 8 % 7 % 3 kw 13 kw 11 kw 7 kw 5 kw 9 kw n (min 1 ) 8/26

9 Operating Curves (measured at ν = 35mm 2 /s and t = 5 C) RE14 6/3.96 This performance data apply with a backflow pressure of 5-1 bar, using a mineral oil-based hydraulic oil with a viscosity of 35 mm 2 /s at 5 C. : Endurance operation : Intermittent operation (operation max. 1 % per minute) Note: Intermittent pressure drop must not coincide with fluctuations in the oil flow. Type GMS 32, GMSS 32, GMSW 32 M (da Nm) q v (L/min) P (kw) η t (%) p (bar) 85 % 8 % 7 % 6 kw 3 kw 12 kw 9 kw n (min 1 ) Direction of shaft rotation (looking at shaft end) Direction of rotation (allocation of ports) E = Inlet = Outlet E E 9/26

10 RE 14 6/3.96 Permissible shaft load Permissible shaft load for GMS, GMSW The tapered roller bearings on the output shaft mean it can accept high levels of axial and radial shaft load. Radial load starting characteristics are considerably better than motors with plain bearings. The broken curve plots the maximum permissible radial load. Loads above and beyond this level can lead to breakage. The central solid curve plots the permissible radial loads for a theoretical service life (1) of 3 hours at 2 min -1. The expected service life can be calculated for different speeds and/or radial loads. Please refer to the "General information" brochure for more detailed information about the caculation methods. These data assume the use of a hydraulic fluid with a sufficient anti-wear additive content. Radial force in N F ax,4 F rad Distance in mm n = 1 min -1 n = 2 min -1 n = 4 min -1 Shaft load F rad = f (L) For L h = 3h F rad = Radial force F ax = xial force L = Distance F ax,4 F rad Shaft version C M8 Ø 32 +,18 +, ,5 58 M8 Ø 31,75 -, C1 C2 Ø 44 M2x1,5 Ø 4, Ø ,36 Ø 45 - Ø 35 Ø ,3 35 -,1 1 19,1 -,1 C3 : Cylindrical Shaft : Involute splined shaft C : Tapered shaft 1 : Parallel key NS Standard (ISO / R 775) 1x8x45; DIN 6885 Pitch 12 / 24 C1 : DIN 937 Teeth 14 cross flats 41 Pressure angle 3 C2 : Taper 1:1 C3 : Parallel key 6x6x2; DIN /26

11 Unit Dimensions: Standard motor Type GMS RE14 6/3.96 (Dimensions in mm) Ø82,5 +,5 L 5±,6 L2 19±,3 68±,3 66±,3 6,1±,3 1x45 58 R1 18±,3 52 L1 T 27±,3 22±,3 E 16±,316±,3 21±,3 21±,3 max. 53 max max. 14 Type L L1 L2 GMS max. 131 Ø16,4±,3 13,5 GMS GMS GMS M8 GMS ,5 141,5 GMS GMS E: M1; 12,5 deep : vailable thread connections can be found on page 3 T: vailable thread connections can be found on page 3 (Drain connection) 11/26

12 RE 14 6/3.96 Unit Dimensions: Wheel motor Type GMSW (Dimensions in mm) Ø125-,63 max. Ø73 16 L 31 43,2±1 8+1 R6 L2 L1 5±,6 1x45 R1 19+, ±1 58±1 T 27±1 22±1 E 16±,3 16±,3 21±,3 21±,3 max. 53 max R12 13,5±1 Ø16±,4 max. 139 M8 Type L L1 L2 GMSW GMSW GMSW GMSW GMSW ,5 14,5 GMSW GMSW max. 139 E: M1; 12,5 deep : vailable thread connections can be found on page 3 T: vailable thread connections can be found on page 3 (Drain connection) 12/26

13 Unit Dimensions: Short motor Type GMSS RE14 6/3.96 (Dimensions in mm) Ø1 -,54 R1 24 5±,6 L x45 L2 6±,2 L1 T 52 27±,6 22±,6 E 16±,316±,3 21±,3 21±,3 max. 53 max Ø4 max. 146 Ø125±, Type L L1 L2 GMSS GMSS Ø5 GMSS GMSS GMSS ,5 95,5 GMSS GMSS E: M1; 12,5 deep : vailable thread connections can be found on page 3 T: vailable thread connections can be found on page 3 (Drain connection) 13/26

14 RE 14 6/3.96 GMSS-assembly, leakage oil connection and add-on components GMSS is a GMS motor without the output shaft and bearings. It is designed for direct mounting onto a gearbox that already has its female input shaft in bearings. The cardan shaft of the GMSS describes a tumbling motion. Consequently, the motor itself cannot be fitted with a shaft seal. The add-on component (gearbox) must be fitted with a shaft seal on its input end in order to prevent the motor leakage oil from flowing into the add-on unit. The maximum permissible backflow pressure (pressure in the motor leakage oil line ) is dependent on the loading capacity Connection dimensions of add-on components (Dimension in mm) of the shaft seal. We always recommend fitting a leakage oil line. The gearbox input must be designed so the leakage oil from the motor lubricates the cardan shaft profile and the bearings. Route the leakage oil line so lubrication to the motor is still assured when it is stopped. Use the tapered sealing ring supplied with the motor in order to direct the leakage oil to the lubrication. Fill the GMSS with hydraulic fluid through its leakage oil connection before taking the motor into operation. 2,3±,5 Roundring 1x3,25,2/1 min Ø4 32±1 Ø 29±,5 Ø 35±,5 min Ø 4 Ø1 Ø 17,8±,2 15 8,2±,2 M1x15 27±,3 52±,3 Details of internal toothing l d D ri D i D fi D S o L o R min Standard NS , class 5 (corrected m x =,8; m = 2,1166) Pressure angle = 3 Pin diameter d = 4.835±.1 Reference pitch diameter D = 25.4 Diameter of available hub circle D fi = 27.6 Tip diameter D i = 23. +,33 Division DP = 12 / 24 Root diameter D ri = 28. -,1 Measure between 2 pins I = ,15 Width of hub space L O = 4.38±.2 Tooth fillet radius R min =.2 Width of hub tooth at referenc pitch diameter S O = Number of teeth z = 12 14/26

15 Ordering code and sample order (GMT, GMTS, GMTW) RE14 6/3.96 GM / * Type Series Standard motor = T 65 Short motor = TS 651 Wheel motor = TW 652 Displacement (cm 3 per revolution) Type GMT GMTS GMTW K 21,3 21,3 21,3 2 L 251,6 251,6 251,6 25 M 326,1 326,1 326,1 32 N 41,7 41,7 41,7 4 P Size Code letter Further details in clear text Shaft GMT, GMTW 1 = cylindrical shaft 4 mm 2 = Involute splined shaft NS = Tapered shaft 1:1 4 = P.T.o. shaft GMSS 1 = cardan shaft Connection 3 = Metric 4 = Pipe thread Sample order: GMT 16 (displacement = 16cm 3 per revolution) Cylindrical shaft Ø 4mm Connection M22x1,5 / M14x1,5 Ordering code: GMT 16 /65-K31 15/26

16 RE 14 6/3.96 Ordering code and weights (GMT, GMTS, GMTW) Standard motor GMT, Series 65 Shaft Connections GMT 16 GMT 2 GMT 25 GMT 32 GMT 4 M27x2 Cyl. shaft M14x1,5 65-K31 65-L31 65-M31 65-N31 65-P31 Ø 4mm G3/4 65-K41 65-L41 65-M41 65-N41 65-P41 M27x2 Involute- M14x1,5 65-K32 65-L32 65-M32 65-N32 65-P32 splined shaft G3/4 65-K42 65-L42 65-M42 65-N42 65-P42 M27x2 Tapered M14x1,5 65-K33 65-L33 65-M33 65-N33 65-P33 shaft G3/4 65-K43 65-L43 65-M43 65-N43 65-P43 M27x2 P.T.o. shaft M14x1,5 65-K34 65-L34 65-M34 65-N34 65-P34 (DIN 9611) G3/4 65-K44 65-L44 65-M44 65-N44 65-P44 Weight (kg) 18,9 19,4 2 2,9 21,9 Short motor GMTS, Series 651 Shaft Connections GMTS 16 GMTS 2 GMTS 25 GMTS 32 GMTS 4 M27x2 Cardan- M14x1,5 651-K L M N P31 shaft G3/4 651-K L M N P41 Weight (kg) 13,6 14,1 14,6 15,8 16,6 Wheel motor GMTW, Series 652 Shaft Connections GMTW 16 GMTW 2 GMTW 25 GMTW 32 GMTW 4 M27x2 Cyl. Shaft M14x1,5 652-K L M N P31 Ø 4mm G3/4 652-K L M N P41 M27x2 Involute- M14x1,5 652-K L M N P32 splined shaft G3/4 652-K L M N P42 M27x2 Tapered M14x1,5 652-K L M N P33 shaft G3/4 652-K L M N P43 Weight (kg) 2,9 21, ,9 23,9 Sample order: GMTW 2 (displacement 2 cm 3 per revolution) Cylindrical shaft Ø 4mm Connection thread G3/4; Ordering code: GMTW 2 / 652-L41 16/26

17 RE14 6/3.96 Technical Data: GMT, GMTS, GMTW (For applications outside these parameters, please consult us!) Motor size Geometric displacement cm ,3 251,6 326,1 41,7 Max. speed min -1 continuous intermittent 1) Max. torque danm continuous 47,5 58,5 74, intermittent 1) Max. power output kw continuous intermittent 1) Max. pressure drop bar continuous intermittent 1) Max. oil flow L/min continuous intermittent 1) Max. input pressure bar continuous 21 intermittent 1) 25 Max. return pressure without drain line or max. pressure in drain line 2) (-1 min -1 ) bar continuous 75 (1-3 min -1 ) bar continuous 4 (3-62 min -1 ) bar continuous 2 (-78 min -1 ) bar intermittent 1) 75 Max. return pressure with drain line bar continuous 14 intermittent 1) 175 Max. start pressure with unloaded shaft bar Min. start torque at max. pressure drop danm continuous Min. speed 3) min ) Intermittent operation: operation max. 1% per minute 2) The pressure on the shaft seal is never greater than the backflow pressure because of the build-in non- return valves. In the GMSS, this pressure is determint based on the technical data of the add-on components 3) You must expect that the motor will run less smoothly at speeds below those specified here. 17/26

18 RE 14 6/3.96 Operating Curves (measured at ν = 35mm 2 /s and t = 5 C) This performance data apply with a backflow pressure of 5-1 bar, using a mineral oil-based hydraulic oil with a viscosity of 35 mm 2 /s at 5 C. : Endurance operation : Intermittent operation (operation max. 1 % per minute) Note: Intermittent pressure drop must not coincide with fluctuations in the oil flow. Type GMT 16, GMTS 16, GMTW 16 M (da Nm) q v (L/min) P (kw) η t (%) p (bar) kw 21 3 kw kw 15 2 kw kw 9 85 % 1 kw 6 8 % 5 kw 3 7 % n (min 1 ) Type GMT 2, GMTS 2, GMTW 2 M (da Nm) q v (L/min] % 8 % 85 % 7 % P (kw) η t (%) 35 kw 4 kw 3 kw 25 kw 2 kw 15 kw 1 kw 5 kw p (bar) n (min 1 ) 18/26

19 Operating Curves (measured at ν = 35mm 2 /s and t = 5 C) RE14 6/3.96 This performance data apply with a backflow pressure of 5-1 bar, using a mineral oil-based hydraulic oil with a viscosity of 35 mm 2 /s at 5 C. : Endurance operation : Intermittent operation (operation max. 1 % per minute) Note: Intermittent pressure drop must not coincide with fluctuations in the oil flow. Type GMT 25, GMTS 25, GMTW 25 M (da Nm) P (kw) η t (%) 35 kw 4 kw 15 kw 1 kw 85 % 7 % 8 % 5 kw 3 kw 25 kw 2 kw q v (L/min) p (bar) n (min 1 ) Type GMT 32, GMTS 32, GMTW 32 M (da Nm) q v (L/min) P (kw) η t (%) 4 kw 35 kw 3 kw 25 kw p (bar) % 88 % 8 % 85 % 5 kw 2 kw 15 kw 1 kw n (min 1 ) 19/26

20 RE 14 6/3.96 Operating Curves (measured at ν = 35mm 2 /s and t = 5 C) This performance data apply with a backflow pressure of 5-1 bar, using a mineral oil-based hydraulic oil with a viscosity of 35 mm 2 /s at 5 C. : Endurance operation : Intermittent operation (operation max. 1 % per minute) Note: Intermittent pressure drop must not coincide with fluctuations in the oil flow. Type GMT 4, GMTS 4, GMTW 4 M (da Nm) q v (L/min) P (kw) η t (%) p (bar) kw 18 3 kw kw 12 2 kw 9 15 kw 1 kw 6 89 % 87 % 85 % 5 kw 8 % 7 % n (min 1 ) Direction of shaft rotation (looking at shaft end) Direction of rotation (allocation of ports) E = Inlet = Outlet E E 2/26

21 Permissible shaft load RE14 6/3.96 Permissible shaft load for GMT, GMTW The tapered roller bearings on the output shaft mean it can accept high levels of axial and radial shaft load. Radial load starting characteristics are considerably better than motors with plain bearings. The broken curve plots the maximum permissible radial load. Loads above and beyond this level can lead to breakage. The central solid curves plots the perissible radial loads for a theoretical service life (1) of 3 hours at 2 min -1. The expected service life can be calculated for different speeds and / or radial loads. Please refer to the "General Gerotormotors" brochure for more detailed information about the calculation methods. These data assume the use of a hydraulic fluid with a sufficient anti-wear additve content. Radial force in N F ax,4 F rad Distance in mm Shaft load F rad = f (L) For L h = 3h n = 1 min -1 n = 2 min -1 n = 4 min -1 F rad = Radial force F ax = xial force L = Distance F ax,4 F rad 21/26

22 RE 14 6/3.96 Shaft version +,18 Ø 4 +,2 4 5±,5 Ø 38,1 -,25 4 M12 28±,16 7 +,5 82 M12 28±, Ø Ø , ,2 1 DIN 937 SW46 1:1 : Cylindrical shaft : Involute splined shaft 1: Parallel key 12x18x7 NS Pitch12 / 24 Teeth 17 Pressure angle 3 C Ø56 M3x2 Ø7 Ø R6,7 D Ø34,85-,12 Ø29,4±,1 7 38±,25 76±1 12 Ø45 R5-12 -, ,64-,11 Ø45 - C1 12x8x28 DIN ,14 -,2 Ø28,14-,2 1) C: Tapered shaft D: P.T.o. shaft (ISO/R 775) DIN 9611 Form 1 C1: Parallel key (ISO/R 5 without pin hole) 1) Deviates from DIN /26

23 Unit Dimensions: Standard motor Type GMT RE14 6/3.96 (Dimensions in mm) +,5 Ø123-1 L Ø125 -,1 T L 12,5±,5 E 125±,5 L ,5±,5 23±,6 21,6±,5 21,6±,5 125±,5 max. 63 max. 71 2±,3 2±,3 21,6±,5 21,6±,5 max Ø16±,4 max. 143 M12 Type L L1 L2 GMT GMT GMT ,2 151 GMT ,5 161 GMT E: M1; 1mm deep : vailable thread connections can be found on page 14 T: vailable thread connections can be found on page 14 (Drain connection) 23/26

24 RE 14 6/3.96 Unit Dimensions: Wheel motor Type GMTW (Dimensions in mm) L1 21,6 ±,5 21,6 ±,5 2 ±,3 2 ±,3 21,6 ±,5 21,6 ±,5 max. 18 max max ,5 Ø123-1 Ø125-,1 Ø16-, R1,2 8 Ø172-,63 L L2 12,5 ±,5 12,5 ±,5 23 ±,6 E 12,5 ±,5 R1,2 T 12,5 ±,5 Ø2±,4 max. 18 M12 Type L L1 L2 GMTW GMTW GMTW ,2 84 GMTW ,5 94 GMTW E: M1; 1mm deep : vailable thread connections can be found on page 14 T: vailable thread connections can be found on page 14 (Drain connection) 24/26

25 Unit Dimensions: Short motor Type GMTS RE14 6/3.96 (Dimensions in mm) Ø125 -, L L2 12,5±,5 12,5±,5 L1 23±,6 21,6±,5 21,6±,5 2±,3 2±,3 12,5±,5 12,5±,5 E max max. 71 T 21,6±,5 21,6±, R44 Ø16±,4 28 max. 185 Type L L1 L2 GMTS GMTS GMTS ,2 16 GMTS ,5 116 GMTS E: M1; 1mm deep : vailable thread connections can be found on page 14 T: vailable thread connections can be found on page 14 (Drain connection) 25/26

26 RE 14 6/3.96 GMTS-assembly, leakage oil connection and add-on components GMTS is a GMT motor without the output shaft and bearings. It is designed for direct mounting onto a gearbox that already has its female input shaft in bearings. The cardan shaft of the GMTS describes a tumbling motion. Consequently, the motor itself cannot be fitted with a shaft seal. The add-on component (gearbox) must be fitted with a shaft seal on its input end in order to prevent the motor leakage oil from flowing into the add-on unit. The maximum permissible backflow pressure (pressure in the motor leakage oil line ) is dependent on the loading capacity (Dimensions in mm) of the shaft seal. We always recommend fitting a leakage oil line. The gearbox input must be designed so the leakage oil from the motor lubricates the cardan shaft profile and the bearings. Route the leakage oil line so lubrication to the motor is still assured when it is stopped. Use the tapered sealing ring supplied with the motor in order to direct the leakage oil to the lubrication. Fill the GMTS with hydraulic fluid through its leakage oil connection before taking the motor into operation. 2,3 ±,5 M12x18 Hardened stop plate,3,2/1 Oil circulation hole min Ø6 Ø39 ±,5 Ø5,5 +1 min Ø55 Ø125 +,63 Ø132,8±,2 min 5 Roundring 125x3 11,2 ±,2 26 ±1 46 ±,3 69 ±,4 l d D ri D i D fi D S o L o Standard NS R min (corrected m x = 1; m = ) Pressure angle = 3 Pin diameter d = 4.835±.1 Reference pitch diameter D = Diameter of available hub circle D fi = 37.6 Tip diameter D i = ,4 Division DP = 12 / 24 Root diameter D ri = ,4 Measure between 2 pins I = ,1 Width of hub space L O = 4.516±.37 Tooth fillet radius R min =.5 Width of hub tooth at referenc pitch diameter S O = 2.17 Number of teeth z = 16 HNP Mobile Hydraulik GmbH & Co. KG Ludwigsluster Chaussee 5 D-1937 Parchim Telefon / 6 6 Telefax / oder Mannesmann Rexroth Limited Cromwell Road, St. Neots, Huntingdon, Cambs. PE19 2ES Tel: (148) Fax: (148) /26 The specified data is for product description only and may not be deemed to be guaranteed unless expressly confirmed in the contract. ll rights reserved Subject to revision