Hägglunds CB
80Pages

rexroth A Bosch Company ► Torque range: up to 370 kNm [up to 272 898 lb-ft] ► Speed:range: up to 125 rpm ► Power range: up to 1000 kW ► Maximum operating pressure: 350 bar [5 076 psi] ► Frame size: 280, 400, 560, 840 and 1120 ► Displacement: 15 100 to 70 400 cm3/rev [921 to 4 296 in3/rev] ► Specific torque: 240 to 1120 Nm/bar [12 204 to 56 952 ft-lbs/1 000 psi] Features ► High power density ► High torque density ► Energy efficient ► Flexible, many sizes, few mechanical interfaces. ► Insensitive for shock loads ► Very low moment of inertia ► Small footprint (total occupied volume) ► Freewheeling possibility ► Through hole diameter 110 mm Contents 1 Ordering code 2

2/80 Hagglunds CB | RadiaL piston hydraulic motor 1 Ordering code In order to identify Hagglunds equipment exactly, the following ordering code is used. These ordering codes should be stated in full in all correspondence e.g. when ordering spare parts. Example Hagglunds CB motor:

Radial piston hydraulic motor | Hagglunds CB 09 • = Available - Not available *) To be filled in by Bosch Rexroth DC-HD/ENG

Hägglunds CB | Radial piston hydraulic motor Shaft side Fig.1: Section view of radial piston hydraulic motor 8. Cylindrical roller bearing 5. Cylinder block, hollow radial bearing 6. Cylinder block, spline 7. Housing cover When the hydraulic pressure is acting on the pistons, the cam rollers are pushed against the slope on the cam ring that is rigidly connected to the housing, thereby producing a torque. The cam rollers transfer the reaction force to the pistons which are guided in the cylinder block. Rotation therefore occurs, and the torque available is proportional to the pressure in the...

Radial piston hydraulic motor | Hägglunds CB 5/80 3 Fluid connections 3.1 Hydraulic symbol Port locations and dimensions, see Table 1: Port dimensions

6/80 Hagglunds CB | RadiaL piston hydraulic motor Table 1: Port dimensions Connection Description D2, D4 Alternative drain connection D3 Alternative drain connection Remarks If A is used as the inlet, the motor shaft rotates counterclockwise, viewed from the motor shaft side. If C is used as the inlet, the motor shaft rotates clockwise, viewed from the motor shaft side. Used to measure pressure and/or temperature at the main connections. Minimess M16 Used to measure pressure in motor casing by mounting pressure transducer R901066595. Normally plugged at delivery. Can also be used to measure...

4.1 Calculation fundamentals Table 2: Calculation fundamentals. Metric Output power Radial piston hydraulic motor | Hagglunds CB 7/80 Output torque (nm=98%) Pressure required (nm=98%) Flow rate required Output speed Inlet power Quantity Symbol Flow rate required q Total volumetric loss ql Metric kW Nm Nm/bar rpm bar bar bar l/min l/min cm3/rev 1) Not valid as starting efficiency

8/80 Hagglunds CB | RadiaL piston hydraulic motor 4.2 General data Table 3: General data (metric) Type of mounting Port connections External loads Hydraulic fluids Pressure Maximum operating pressure Maximum peak pressure ^ Charge pressure Maximum case pressure Maximum case peak pressure 2) Temperature limits of case drain oil Seal type: NBR (Nitrile) Minimum Maximum Seal type: FPM (Viton) Minimum Maximum Oil volume in motor case Moment of inertia for rotary group Motor with splines Motor with shaft coupling See section 9: Mounting alternatives See section 3.2: Port connections See section...

Table 4: General data (US) 1) Peak pressure 6091 psi maximum, allowed to occur up to 10 000 times 2) Momentary pressure spikes t< 0.1 s of up to 116 psi are permitted 3) Pressure limitations in some nominal motor sizes see Table 6 4) Motor including coupling adapter

10/80 Hagglunds CB | Radial piston hydraulic motor 4.3 Motor data Table 5: Specific data, metric Specific torque Displacement Frame size Nominal size Nm/bar cm3/rev Maximum speed Maximum operating pressure 2) Maximum operating power 3) 1) Calculated as: Metric= Ts • (350-15) • 0,98 2) The motors are designed according to DNV-rules. Test pressure 420 bar. Peak pressure 420 bar maximum , allowed up to 10 000 times. 3) Flushing of motor case is required. See section 4.10: Flushing 4)Note! Max pressure <350 bar 5) Viton seals are recommended for speeds above 110 rpm

Table 6: Specific data, US Specific torque Displacement Frame size Nominal size lbf-ft/1000 psi in3/rev 1 Calculated as: US= Ts • (5076-215) • 0,98 2) The motors are designed according to DNV-rules. Test pressure 6000 psi. Peak pressure 6000 psi maximum , allowed up to 10 000 times. 3) Flushing of motor case is required. See section 4.10: Flushing 4)Note! Max pressure <350 bar 5) Viton seals are recommended for speeds above 110 rpm Radial piston hydraulic motor | Hagglunds CB 11/80 Maximum torque 1> Maximum speed

Hägglunds CB | Radial piston hydraulic motor 4.4 Recommended charge pressure The motor working in braking mode The hydraulic system must be such that the motor will Required charge pressure at the inlet port is according recieve sufficient charge pressure at the charge pressure port. This applies to all types of installations. 4.4.1 The motor working in driving mode only The pressure at the charge pressure port, should, during operation of the motor, be at least one bar above the case pressure independent of numbers of ports that are connected. Two cases to be considered: Note! The diagrams...

Radial piston hydraulic motor | Hägglunds CB 13/80 Fig. 6: Recommended charge pressure for motor workning in braking mode, Hägglunds CB 280, 4-port connection. Valid for oil viscosity 40 cSt.

Hägglunds CB | Radial piston hydraulic motor Fig. 7: Recommended charge pressure for motor workning in braking mode, Hägglunds CB 400 to CB 560, 2-port connection. Valid for oil viscosity 40 cSt. Fig. 8: Recommended charge pressure for motor workning in braking mode, Hägglunds CB 400 to CB 560, 4-port connection. Valid for oil viscosity 40 cSt. Bosch Rexroth AB, RE 15302/06.2021