TSUBAKI EMERSON CAM CLUTCH

www.bergab.ru Берг АБ bergab@ya.ru Тел. (495)-228-06-21, факс (495) 223-3071
A-3. FREE WHEELING
To prevent differences in the rotating speed between the
driving side and the driven side from damaging the
driving unit or the product, the Cam Clutch overruns
when speed differences occur. Normally, the Cam Clutch
engages to transmit torque, and it overruns to break the
connection between the driving side and the driven side.
In this case the Cam Clutch overruns at a speed equal to
the difference in rotating speed that occurs when the
driven unit (normally the inner race) rotates faster than
the driving unit (normally the outer race), or when the
driving unit is decelerated or stopped abruptly.
When feeding hoop-shaped material or plate material to
the next process by slitter or pressure rolls, the material is
fed at first by pinch rolls up to the main rolls. Since the
main rolls process the material while pulling it at a speed
faster than that of the pinch rolls, the pinch rolls are
pulled by the material. At this point, the Cam Clutch
starts to overrun and prevents the pinch rolls from being
driven in reverse by the material. The Cam Clutch is used
to prevent damage to the pinch roll driving parts and to
the material, due to slippage between the pinch rolls.
This method is also used with drying machines, engine
testers, and plywood fabricating machines.
A-4. MANUAL TYPE
Cam Clutches are used when a machine is operated
manually for positioning, adjustment or inching. The
Cam Clutch mounted at the manual handle overruns
while the machine is in operation. The handle does not
rotate and cause a safety hazard.
Cam Clutches are used in the manual handles of
circular knitting machines. The manual handle is used
to operate the machine manually when starting, for
adjustment of the needle and thread. When the
machine starts its regular knitting work after the
adjustment, the linkage between the Cam Clutch and
the handle is broken. Another Cam Clutch is provided
at the output section of the worm reduction gears, to
break the connection with driving side during manual
operation. Since this Cam Clutch engages to drive the
circular knitting machine during regular operation, the
large torque capacity PB12 is used.
Manual operation example
Feed roll example
Applicable Series
Series Advantage Page
MZ, MZEU
MG
BB
PB
200
LD
MI
• Grease is sealed in, so lubrication maintanance
is not required.
• Compact and transmits high torque.
• Excellent wear resistance when overrunning.
• Same dimensions as #62 type bearing.
• Integrated Cam Clutch and bearing.
• Sleeve-type outer race enables mounting of
sprocket or gear with small outer diameter.
• Use of oil-impregnated alloy bearings makes
oiling the bearing section unnecessary.
• Since this series is mounted directly on the shaft,
it is possible to use a shaft of large diameter.
• Compact designs are possible.
• Grease is sealed in, so lubrication maintenance
is not required.
• For light loads and low-speed drive.
• MG reinforced spring type.
• Excellent response to load change.
22 to
31
65
33, 34
37
32
38
65
Applicable Series
Series Advantage Page
LD
MZ, MZEU
200
BB
PB
PG
• For low-speed overrunning.
• No maintenance.
• For medium-speed overrunning.
• No maintenance.
• For medium-speed overrunning.
• Since this series is mounted directly on the shaft,
it is possible to use a shaft of large diameter.
• Same dimensions as #62 type bearing.
• Integrated Cam Clutch and bearing.
• For medium-speed overrunning.
• Since it has a sleeve type outer race, it can be
mounted easily on a handle with a small boss
diameter.
• For low-speed overrunning.
• Outer race is tapped for mounting a lever.
SS Specification (reinforced spring specification)
In this specification, the response of cam following load
changes during Cam Clutch engagement is enhanced.
Use the Cam Clutch at an overrunning speed of 50
r/min or lower.
www.bergab.ru Берг АБ bergab@ya.ru Тел. 14 (495)-228-06-21, факс (495) 223-3071
38
22 to
31
32
33, 34
For normal and reverse driving in the above examples,
specially designed Cam Clutches are available.
Please contact TSUBAKI for details.
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