Bosch Rexroth Hagglunds CBm - 5 Product Information; 5.1 Performance, Description, and Identification

RE 15300-WA, Version 06.2021, Bosch Rexroth AB
Scope of delivery 13/72
Fig. 1: The CBm radial piston motor
4
1
2
11
3
5
7
9
10
Connection side
of the motor
Shaft side
of the motor
1 Cam ring
2 Cam roller
3 Piston
4 Cylinder block, spline
5 Cylinder block, hollow
shaft
6 Shrink disc
7 Cylindrical roller bearing
8 Housing cover
9 Wear ring
10 Distributor
11 Connection housning
12 Product identication
DD00093357
6
7
8
12
9
10
4 Scope of delivery
Included in the delivery contents is Hägglunds CBm as per order conrmation.
5 About this product
5.1 Performance description
The Hägglunds CBm is a radial piston hydraulic motor that converts hydraulic
ow into mechanical rotation. Refer to product-specic data sheet and the order
conrmation for technical data, operating conditions and operating limits of the
specic CBm motor.
5.2 Product description
The Hägglunds CBm is a radial piston hydraulic motor with a rotating cylinder
block shaft and a stationary housing. The cylinder block is mounted in xed roller
bearings in the housing. An even number of pistons are radially located in bores
inside the cylinder block, and the distributor 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 rotating cylinder block. Rotation therefore occurs, and the torque
available is proportional to the pressure in the system.
Oil main lines are connected to ports in the connection block and drain lines to
ports in the motor housing.
The motor is connected to the shaft of the driven machine through the cylinder
block. The torque is transmitted by splines or shrink disc coupling.