TSUBAKI EMERSON CAM CLUTCH

www.bergab.ru Берг АБ bergab@ya.ru Тел. (495)-228-06-21, факс (495) 223-3071
C-1. BACKSTOPPING FOR LOW-SPEED
OVERRUNNING
(Overrunning speed at 150 r/min or less)
In this application, the inner race
of the Cam Clutch is mounted
directly onto the conveyor head
pulley, or other shaft with a lowspeed
of rotation, while the outer
race is anchored to the conveyor
frame to prevent reverse rotation.
Since reverse rotation is prevented directly by the
conveyor shaft without using a drive chain, gears, or
couplings, this is regarded as the safest and most reliable
mounting method. Additionally, a low overrunning speed
minimizes the cam overrunning slip speed, as well as the
overall slipping distance. As a result, wear on the cam is
reduced and a prolonged service life can be expected.
In addition to conveyors, this system is also used to
prevent reverse rotation in inclined and screw pumps.
Applicable Series
Series Advantage Page
BS
BS-R
BSEU
• Cam Clutch designed for conveyor backstopping.
• Designed to be perfectly dust-proof.
• Lubrication is greatly enhanced by the cam-roller
combination.
• Grease is sealed in, so lubrication maintenance
is almost never required.
43
to
51
Applicable Series
Series Advantage Page
MG-R
200
• The oil reservoir provided with this series accommodates
a large amount of oil to reduce maintenance.
• Compact and able to transmit large torques.
• Excellent wear resistance when overrunning.
• Since this series is mounted directly on the shaft,
it is possible to use shafts of large diameters.
• Ideal for use with reduction gears.
The following series, which have sealed-in grease and
are maintenance free, can also be used for this purpose:
MZ, MZEU (p. 22 to p.31), MG (p. 65) and PB (p. 37)
Series.
C-3. BACKSTOPPING FOR HIGH-SPEED
OVERRUNNING
(Overrunning speed = 700 to 3,600 r/min)
This example shows a Cam Clutch installed to the motor
shaft of an inclined conveyor system, to prevent reverse
rotation. Low torque Cam Clutches can also be installed
to high speed shafts. Cam Clutches are excellent for
space-limited applications because they can be used as
is for replacements for standard ball bearing cassettes.
67
32
Series
BS 65 to BS 135
BSEU 25 to BSEU 90
BS 160 to BS 450
BS65R to BS450R
Maintenance
Grease is sealed in, so lubrication maintenance
is not required.
Grease lubrication with replacement once or
twice a year.
Oil lubrication with replacement once a year.
Depending on conditions, the following series can also be
used for this purpose: MG (p. 65), MG-R (p.67), MZ, MZEU
(p. 22 to p. 31), BB (p. 33), PB (p. 37), 200 (p. 32) and LD
(p. 38) Series
C-2. BACKSTOPPING FOR MEDIUM-
SPEED OVERRUNNING
(Overrunning speed = 150 to 700 r/min)
In this application, the Cam Clutch is mounted on shafts
rotating at medium speeds, such as the intermediate
shafts of reduction gears, etc., to prevent reverse rotation.
Since reverse rotation is prevented by the medium-speed
shaft, the Cam Clutch required only needs to withstand a
comparatively small torque which is inversely
proportional to the rotating speed ratio of the conveyor
shaft. Accordingly, even a small-sized Cam Clutch can
be used for this purpose.
This example shows a Cam Clutch installed to a motor
pulley to prevent reverse rotation. Cam Clutches can
be installed to inclined belt conveyor systems to
prevent reversing when the conveyor stops, as a result
of power loss or other causes.
Applicable Series
Series Advantage Page
www.bergab.ru Берг АБ bergab@ya.ru Тел. 20 (495)-228-06-21, факс (495) 223-3071
BB
• Same dimensions as #62 bearing unit.
• One-piece construction of bearing and Cam Clutch.
33, 34