Warner Electric CB Series Size 2 - Manual (Page 2)

2 Warner Electric • 800-825-9050 P-1315 • 819-0448
Warner Electric wrap spring clutches and
clutch/brakes are factory assembled, requiring
no adjustments during installation.
Failure to follow these
instructions may result in product damage,
equipment damage, and serious or fatal
injury to personnel.
Pre-Installation Inspection
Examine the unit for any damage, which may have
occurred during shipping. Check the unit to insure it
meets your application’s requirements, such as
shaft fit and coil voltage. In addition, make sure all
parts are clean and free of any foreign material prior
to assembly.
Mounting and Installation
Whenever attempting to install this
type of product used for engaging and stopping
components on a machine, it is strongly
recommended that the machine be put in a safe
condition prior to servicing.
1. Each clutch/brake backing plate assembly
has three or four mounting holes plus an
anti-rotation slot (with grommet), and is designed
to serve as a torque arm rather than as a rigid
mounting plate. The plate should be restrained
from rotating by a pin or shoulder bolt, while
allowing it to float axially. The anti-rotation device
must be capable of withstanding the braking
torque required by the load.
IMPORTANT: Do not rigidly mount unit. Plate
must be allowed to “float” axially.
2. On CB type units, the input rotation is always
connected to the input hub, and the output is
always through the shaft through the hollow bore
of the clutch/brake.
3. When mounting the CB-2, the brake spring must
be fully wrapped down.
Note: Simply rotating the input hub until
the actuator hits the cam will not fully wrap down
the brake spring.
Wrapping the brake spring down completely can
be accomplished by rotating the output shaft in
the driving direction until it cannot travel any
further.
4. All Warner Electric wrap spring products
are designed to be installed in parallel shaft
applications where they are fully supported by
the shaft on which they are mounted.
5. Mount the CB-2 clutch shaft to the through shaft
by using one or both of the methods described
as follows. The preferred, and easiest way, is to
use the clamp collar provided. It is important that
the clamp collar be positioned directly over the
slots of the shaft to insure good clamping. The
clamp collar screw must be tightened to 32 lb.in.
(3.6 Nm). A pilot hole is also provided on the
clutch output shaft for drilling through your shaft
to couple the clutch and shaft with a pin.
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Potential
Mounting
Holes
Potential
Mounting
Holes
Anti-Rotation
Slot
Clockwise Rotation Shown