Isel A Series Instruction Manual

The AS and AT Series are flexible-type couplings that
permit a deflection angle between the 2 shafts, while
the AD and AL Series are flexible-type couplings that
permit both center deviation and a deflection angle
between the 2 shafts. The shaft tolerances, surface
roughness, centering accuracy, and correct tightening of
the lock bolts are very important factors in order to
obtain full performance from each series. If you have
any questions, please contact a dealer or our company.
For safe use of the product
Thank you for your purchase of an ISEL product.
In order to use the product safely and obtain the
designated full performance, please be sure to read the
following items.
◎Read this instruction manual carefully and understand
the contents before using the product, and be sure to
observe all instructions in the manual and use the
product correctly.
◎Be sure that you fully understand the information related
to the device and safety before using the product.
◎After reading, be sure to store this manual carefully so
that it can be referred to at any time when needed
during use.
This manual classifies important precautions into two
categories: DANGER and WARNING.
DANGER
Incorrect use or handling Incorrect use or handling
will produce dangerous will produce dangerous
conditions that may result conditions that may result
in death or serious injury. in injury.
There is also the risk of
property damage.
DANGER
◆When using this product, be sure that the necessary
mechanisms (covers, enclosures, etc.) for ensuring the
safety of life and health are installed on the equipment.
◆Wear clothing and protective gear that is suitable for the
work.
◆Keep the work area clean and orderly, and work safely
in order to prevent secondary accidents.
◆In the environment where the product operates, install
safety mechanisms onto all parts which may be a
danger to the operator.
◆When performing maintenance or inspections, turn OFF
the motor power (power supply) and check that the
machine has fully stopped before beginning work.
◆Before using lift equipment, install safety measures on
the equipment to prevent falling. There is the risk of
death or injury, as well as damage to the equipment, if
the lift part falls.
◆If the product is used for transporting persons, install the
necessary equipment for safety.
◆Do not touch the product while it is operating. Doing so
may result in injury, damage to the product, or other
damage.
◆Do not use the product for any purpose other than the
designated purpose, and do not modify the product.
There is the risk that the designated accuracy and
performance will not be possible.
◆If abnormal noise or vibration occurs during work,
immediately discontinue operation and inspect the
equipment and this product. If use is continued without
inspecting, there is the risk of injury to operators,
damage to equipment, and other damage.
WARNING
◇Check that the product is the one you ordered and that
there is no damage to it. If the product is not the one
you ordered or is damaged, there is the risk of injury to
operators, damage to equipment, and other damage.
◇Never use molybdenum oil or oil which contains an
extreme-pressure additive. Doing so may cause a large
decrease in allowable torque, resulting in slipping.
◇If the shaft includes a key groove, it can be used as
long as the groove width is as prescribed in the JIS
standard. However the maximum allowable torque is
reduced by 15% - 20%. Remove any burrs on the key
Coupling Instruction Manual
A Series ( AS,AT,AD,AL )
groove before using.
◇If the product is reused, check that there is no
deformation, damage, or other problem with the product
or any of its components before use. If there is damage,
deformation, or other problem, replace with a new
product.
◇When tightening lock bolts, be sure to use a torque
wrench that includes a torque adjustment scale, and
tighten at the designated tightening torque. Use of a
plate-type torque wrench may cause slipping,
deformation, and other trouble because it is difficult to
check the designated torque.
◇Never use any bolt other than the designated bolt. There
is the risk of damage to the bolt, resulting in an
accident.
◇In order to ensure the designated performance, an
opposite shaft with tolerance grade h7 and surface
roughness of Ra1.6 or less is recommended.
◇In the case of a hollow shaft (pipe), depending on the
thickness it may not be possible to obtain sufficient
surface pressure. Please contact our company.
◇Install within the tolerance values for center deviation,
deflection angle, and end play. There is the risk of
damage to the product. In particular, centering accuracy
has an effect on vibration and the lifetime of the
coupling.
◇It is recommended that the product be used within 1/2
or less of the displacement tolerance values.
WARNING
◇If the product has special specifications, it may differ in
parts from the contents of this instruction manual.
Please contact a dealer or our company.
◇If the bolts are tightened when the coupling is not
connected to anything, the coupling may become
deformed and be rendered unusable. Therefore check
that the shaft is fully inserted into the coupling when
tightening the bolts.
◇Due to the coupling structure, there is the risk of injury if
the user grasps the corners or disc part. Therefore
exercise sufficient caution when handling.
● Structural drawings
6 5 4 3 1 7 2
AS Series
6 2 5 1A 4 3 1B 7
AT Series
4
6 5 3 7 8 4 1 2
AD Series
6 5 3 7 8
AL Series
1. Body 4. Washer
1A. BodyA 5. Clamping screw
1B. BodyB 6. Locking screw
2. Side ring 7. U nut
3. Disk 8. Spacer
● Installation
( 1 ) Use paint thinner or other means to wipe off any
corrosion, dirt, or other substance from the surface of
the shaft, then apply a light coat of oil.
Apply a light coat of oil to the coupling inner diameter
( 2 )
parts, tapered parts, and the threads and head seats of
the lock bolts.
WARNING
◇Using the product after unpackaging without applying oil
to it may cause a decrease in allowable torque.
( 3 ) Machine the motor mount part accurately so that the
misalignment between the 2 shafts is at or below the
tolerance value.
● Installation procedure
( 1 ) Check output motor shaft centering accuracy.
Confirm centering accuracy by measuring the output
motor shaft before installing the coupling.
Set the gauge as shown in order to measure motor
shaft off-centering (Figure.1).
Motor
( Figure 1 )
Precautions： The motor shaft off-centering amount is
established by each manufacturer but may
already have occurred at this stage.
Remove the clamp bolts from the disc part of the
( 2 )
provisionally installed coupling, and separate the body
and disc. Only the necessary numbers of washers, bolts,
and other parts are provided. Be careful not to lose any
of them.
( 3 ) Set the distance between flange surfaces (Table 1)
according to the model. (Figure 2)
LL
( Figure 2 )
4 1 2