OMT Technical Information. Versions OMT. Versions

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1 Versions Versions Mounting flange Shaft Port size European version US version Drain connection Check valve Low pressure release High pressure release Main type designation Standard Wheel Brake-wheel G 3/4 Yes Yes Yes Yes G 3/4 Yes Yes Yes Yes G 3/4 Yes Yes Yes Yes P.t.o. G 3/4 Yes Yes G 3/4 Yes Yes W G 3/4 Yes Yes W Yes Yes W G 3/4 Yes FX G 3/4 Yes FX G 3/4 Yes FL Brakestandard G 3/4 Yes FL G 3/4 Yes FH G 3/4 Yes FH Short G 3/4 Yes Yes S Function diagram - see page : Features available (options) : Speed sensor Motor with tacho connection Viton shaft seal Painted Ultra short 34

2 Code Numbers Displacement [cm 3 ] Code Numbers Technical data Page Shaft loads Page Dimensions Page 151B Ordering code number. Example: Orders will not be accepted without the four digit prefix. 35

3 Technical Data Technical data for, W, S, FX FL and FH W W W W W W Type S S S S S S FX FX FX FX FX FX FL FH FL FH FL FH FL FH FL FH FL FH Motor size Geometric displacement Max. speed Max. torque Max. output Max. pressure drop Max. starting pressure with unloaded shaft Min. starting torque cm 3 [in 3 ] [rpm] kw [hp] bar [psi] l/min [USgal/min] cont. int cont. int. cont. int. cont. int. peak cont. int. bar [psi] at max. press. drop cont. at max. press. drop int. 36

4 Technical Data Technical data for, W, S, FX FL and FH Type, W, S, FX, FL, FH bar [psi] bar [psi] bar [psi] cont. int. peak Max. inlet pressure Max. return pressure with drain line Brake motors Type FX, FL FH Max. presssure in drain line 3) Holding torque 4) Brake-release pressure 3) Max pressure in brake line pressure in the drain line. 37

5 Technical Data Max. Permissible Shaft Seal Pressure with check valves and without use of drain connection: The pressure on the shaft seal never exceeds the pressure in the return line with check valves and with drain connection: The shaft seal pressure equals the pressure on the drain line. FX, FL and FH drain line. Max. pressure in drain line is Max. return pressure without drain line or max. pressure in the drain line Continuous operation 38

6 Technical Data Pressure Drop in Motor Oil Flow in Drain Line drain line at a return pressure less than Pressure drop bar [psi] Viscosity mm 2 /s [SUS] Oil flow in drain line l/min [US gal/min] Direction of Shaft Rotation 39

7 Technical Data Permissible Shaft Loads for Mounting flange: Standard Shaft: Mounting flange: Wheel Shaft: The output shaft runs in tapered roller bearings that permit high axial and radial forces. content of anti-wear additives, is used. in the curve will involve a risk of breakage. Bearing life calculations can be made using the explanation and formula provided in the chapter "Bearing dimensioning" in the technical information "General Orbital motors" 40

8 Technical Data Permissible Shaft Loads for Mounting flange: Brake-wheel Shaft: Mounting flange: Brake-standard Shaft: The output shaft runs in tapered roller bearings that permit high axial and radial forces. content of anti-wear additives, is used. in the curve will involve a risk of breakage. Bearing life calculations can be made using the explanation and formula provided in the chapter "Bearing dimensioning" in the technical information "General Orbital motors" 41

9 Function Diagrams Function Diagrams Continuous range 42

10 Function Diagrams Function Diagrams Continuous range 43

11 Function Diagrams Function Diagrams Continuous range 44

12 S Installing the S of the shaft, no seal can be fitted at the shaft output. During start and operation it is important that the spline connection and the bearings spline connection receives sufficient oil, a conical sealing ring between the shaft of the attached component and the motor intermediate plate is recommended. This method is used in the. To ensure that oil runs to the bearings and other parts of the attached component, the stop plate must have a hole in it (see fig. below). We recommend an O-ring between motor and attached component. The O-ring been separated, remember to refill before starting up. Fill the oil through the drain connection. S Dimensions of the Attached Component 3 mm B: External drain channel C: Drain connection D: Conical seal ring E: Internal drain channel G: Oil circulation hole H: Hardened stop plate 56

13 S Internal Spline Data for the Component to be Attached The attached component must have internal splines corresponding to the external splines on the motor cardan shaft (see drawing below). Material: Hardening specification: Internal involute spline data Standard ANS B , class 5 (corrected m X = 1; m = ) Flat root side fit mm in teeth z Pitch DP Pressure angle Pitch dia. D D ri Form dia. (min.) D fi Minor dia. D i Space width (circular) L o Tooth thickness S (circular) o Fillet radius R min. Max. measurement l between pins* Pin dia. d * Finished dimensions (when hardened) Drain Connection on S or Attached Component A drain line ought to be used when pressure in the return line can exceed the permissible pressure on the shaft seal of the attached component. The drain line can be connected at two different points: between motor and attached component. attached component being drained of oil when at rest. shaft seal. 57

14 OMS, and OMV of Motors of Motors 80

15 OMS, and OMV of Motors of Motors 81

16 OMS, and OMV of Motors of Motors 82

17 Products we offer: Bent Axis Motors Closed Circuit Axial Piston Pumps and Motors Microcontrollers and Software Open Circuit Axial Piston Pumps Orbital Motors Proportional Valves Sensors Steering Transit Mixer Drives Sauer-Danfoss is a global manufacturer and supplier of high- with our customers to ensure exceptional performance for a broad reduce costs and bring vehicles to market faster. Go to for further product information. We offer expert worldwide support for our customers, ensuring the best possible solutions for outstanding performance. And with an extensive network of Global Service Partners, we also provide comprehensive global service for all of our components. Local address: Members of the Sauer-Danfoss Group: Comatrol Schwarzmüller-Inverter Turolla Sauer-Danfoss ApS Hydro-Gear Sauer-Danfoss-Daikin Sauer-Danfoss GmbH & Co. OHG Sauer-Danfoss-Daikin LTD.

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