Quality. 1. Cam ring 2. Cam roller 3. Piston 4. Shaft coupling Connection block 10. Valve plate 11. Axial bearing 6

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1 Functional description Hägglunds hydraulic industrial motor COMPACT CB is of the radial-piston type with a rotating cylinder block/hollow shaft and a stationary housing. The cylinder block is mounted in fixed roller bearings in the housing. An even number of pistons are radially located in bores inside the cylinder block, and the valve plate directs the incoming and outgoing oil to and from the working pistons. Each piston is working against a cam roller. 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 piston which are guided in the cylinder block. Rotation therefore occurs, and the torque available is proportional to the pressure in the system. Oil main lines are connected to ports A and C in the connection block and drain lines to ports D1, D2, D3 or D4 in the motor housing. ACB , Replaces The motor is connected to the shaft of the driven machine through the hollow shaft of the cylinder block.the torque is transmitted by using a mechanical shrink disc, or alternatively by splines. Valid patents US , US A, SE , EP , JP , GB , European Patent No Quality To assure our quality we maintain a Quality Assurance system, certified to standard ISO 9001, EN and BS 5750; Part D A, C 1. Cam ring 2. Cam roller 3. Piston 4. Shaft coupling Cylinder block / hollow shaft 5 6. Cylinder block / spline 7. Shaft end housing 8. Cylindrical roller bearing Connection block 10. Valve plate 11. Axial bearing A = Inlet or outlet port»a«c = Inlet or outlet port»c«10 D = Drain port The contents of this information are subject to change without notice or obligation. Information herein should be confirmed before placing orders. 1(1)

2 Calculation fundamentals Output power Output torque ( η = 98%) m Pressure required ( η m = 98%) Flow rate required Output speed Tn P= (kw) on driven shaft 9549 T= T ( p- p - p ) η s l c m p= T + pl + p T η c S m (Nm) (bar) n Vi n Vi q = + ql (l/min) q = + ql q-ql n= 1000 (rpm) n= V i Tn P= (hp) on driven shaft 5252 Ts ( p- pl - pc) η T= m (lbf ft) 1000 p= T p + p (psi) T η l c s q-ql 231 V i m ACB , Replaces (gpm) (rpm) Inlet power q ( p-pc) P= (kw) in P= 600 in q ( p-pc) 1714 (hp) Quantity Symbol Metric US Power P = kw hp Output torque T = Nm lbf ft Specific torque T s = Nm/bar lbf ft/1000 psi Rotational speed n = rpm rpm Required pressure p = bar psi Pressure loss Dp l = bar psi Charge pressure p c = bar psi Flow rate required q = l/min US gallon/min Total volumetric loss q l = l/min US gallon/min Displacement V i = cm 3 /rev in 3 /rev Mechanical efficiency h m = (0,98)* For more information See Hägglunds Powerful Engineering (EN347-4). Definitions Rated speed** Rated speed is the highest allowed speed for a charge pressure of 12 bar (175 psi) above case pressure. When a closed loop system is used, a minimum of 15% of oil is to be exchanged in the main loop. Max speed Maximum speed is the maximum allowed speed. Special considerations are necessary regarding charge pressure, cooling and choice of hydraulic system for speeds rated above. Accepted conditions for standard type of motor: 1. Oil viscosity cst ( SSU). 2. Temperature -35 C to +70 C (-31 F to +158 F). 3. Case pressure 0-3 bar (0-45 psi) 4. Charge pressure (see diagram). 5. Volumetric losses (see diagram). * Not valid for starting efficiency ** Operating above rated conditions requires engineering approval. The contents of this information are subject to change without notice or obligation. Information herein should be confirmed before placing orders. 1(1)

3 ACB , Replaces Motor data Metric Specific torque Rated * speed 1 ) Max. speed Max. ** pressure Max. torque 2 ) Max. power 3 ) Intermittently Displacement Motor type V i T s n n p knm kw cm 3 /rev Nm/bar rev/min rev/min bar CB CB CB CB CB CB CB CB CB CB CB CB CB CB CB CB CB CB Specific Rated * Max. Max. ** Max. Max. power Displacement ) US torque speed 1 ) speed pressure torque 2 ) Intermittently Motor type V i T s n n p lbf ft/1000 lbf ft hp in 3 /rev psi rev/min rev/min psi CB CB CB CB CB CB CB CB CB CB CB CB CB CB CB CB CB CB *) Related to a required pressure of 12 bar/175 psi for motors in braking mode. (Special considerations regarding charge pressure, cooling and choice of hydraulic system for speeds above rated, 4 ports must be used for higher speed). **) The motors are designed according to DNV-rules. Test pressure 420 bar/6000 psi. Peak/transient pressure 420 bar/6000 psi maximum, allowed to occur times. 1 ) Special considerations regarding charge pressure, cooling and choice of hydraulic system for speed above rated. 2 ) Calculated as: Metric= Ts (350-15) 0,98 US= Ts ( ) 0,98. 3 ) Valid for minimum permissible oil viscosity 20 cst in the motor case. The contents of this information are subject to change without notice or obligation. Information herein should be confirmed before placing orders. 1(1)

4 ACB , Replaces Ordering code, COMPACT MOTORS In order to identify Hägglunds equipment exactly, the following ordering code is used. These orde ring codes should be stated in full in all correspondence e.g. when orde ring spare parts. The contents of this information are subject to change without notice or obligation. Information herein should be confi rmed before placing orders. 1(3)

5 , Replaces , ACB-1.4 Ordering code, TORQUE ARM for CB In order to identify Hägglunds equipment exactly, the following ordering code is used. These orde ring codes should be stated in full in all correspondence e.g. when ordering spare parts. Example: T C A T C Torque arm Generation Torque arm size TCA 40 for CB 280, CB 400 TCA 84 for CB 560, CB 840 Attachment Pivoted Other Modification Design Standard Special index To be filled in by Hägglunds The contents of this information are subject to change without notice or obligation. Information herein should be confi rmed before placing orders. 2(3)

6 , Replaces , ACB-1.4 Ordering code, SPEED ENCODERS In order to identify Hägglunds equipment exactly, the following ordering code is used. These orde ring codes should be stated in full in all correspondence e.g. when ordering spare parts. Speed encoder for mounting set SMCB. Example: S P D B S P D B - Speed encoder Digital Generation Type of encoder Standard 1 Explosion proof 2 Pulse rate (pulse/rev) Ordering code, MOUNTING SET for Speed encoder Example: S M C B S M C - Mounting set for speed encoder For motors Compact Generation C B Type of encoder Standard 1 Explosion proof 3 Modification 0-9 Design Standard Special index To be filled in by Hägglunds The contents of this information are subject to change without notice or obligation. Information herein should be confi rmed before placing orders. 3(3)