Tsubaki Roller Chain Couplings can operate even with a slight
misalignment. However, to obtain a maximum service life, please
install using the following procedures. (This installation procedure
should be delivered to the end user.)
1. These instructions must be read and understood prior to product
operation.
2. The following conditions must be fulfilled before and during
installation, removal or maintenance.
1) Turn off any power switches.
2) Do not go underneath any machines or parts of machines that
might fall.
3) Lock all movable parts of the equipment or the machine.
4)Suitable protective clothing and gear must be worn.
1. A protective cover must be provided to prevent any damage that
might be caused by loose bolts, coupling case breakage or
coupling chain breakage.
2. When this product is used at more than 1/3 of the maximum
revolutions specified in the catalog, the parallel alignment and the
angle alignment values must be kept below 1/2 of the specified
value in this procedure.
3. Removal or maintenance of couplings must be performed under
unloaded conditions.
Install the oil seal that comes with the Tsubaki Roller Chain Coupling
Case on one of the sprocket hubs.
When it is mounted vertically,
install oil seal side up.
Align the shafts with the sprocket sides facing each other. The
allowable angle misalignment must be less than 1 for Tsubaki Roller
Chain Couplings. Less than 0.5
When it is operated more than 1/3 of Max. speed of rotation
r/min. .
Check the parallel misalignment by measuring the gap between the
bottom teeth of the two sprockets with a thickness gage or any
proper measuring tools.
The allowable parallel misalignment is 2 of the coupling chain pitch.
Less than 1
When it is operated more than 1/3 of Max. speed of rotation r/min. .
Adjust the sprockets for the proper
gap "S" as shown below.
Coupling No.
Tolerance
Tolerance
'S'
Tolerance
of Gap
'
S
'
mm
in
S
S
4.9
±0.31
0.193
±0.012
7.4
±0.68
0.291
±0.027
9.7
±0.88
0.382
±0.035
11.5
±1.02
0.453
±0.040
15.2
±1.32
0.598
±0.052
18.8
±1.52
0.740
±0.060
22.7
±2.02
0.894
±0.080
30.1
±2.52
1.185
±0.099
37.5
+1.0
−3.0
1.476
+0.039
−0.118
CR4012
CR4014
CR4016
CR5014
CR5016
CR5018
CR6018
CR6022
CR8018
CR8022
CR12018
CR12022
CR16018
CR16022
CR20018
CR20022
CR3812
CR10020
Fill the gap between the two sprockets with a high quality ball
bearing grease of soft or medium consistency. Also apply grease to
the coupling chain. Wrap the chain around the sprockets. Insert the
joint pin from the oil seal side. Fasten the joint pin with the clip or the
split cotter pin that comes with the Tsubaki Roller Chain Coupling.
Fill each half of the casing with high quality grease. Set each half of
the casing on the sprockets .The groove on the casing face should be
lined up with the oil seal that was installed on the hub. The other side
(fixed side) of the casing should be fit properly with the step on the
hub.
Set 4 bolts (6 bolts for CR16018 and up), and tighten equally until
the fixed side of the casing just touches the hub.
Turn and slide the casing by hand to fit the fixed side of the casing
to the step on the hub. Then tighten the bolts until the gaskets are
compressed equally. If the unit will be operated under high-speed
conditions as shown in our catalog, it is recommended that a thread
locking paste/liquid be applied to the bolts.
1. There are three types of lubrication methods indicated in our
catalog.
2. Applying grease to the chain without the coupling case at low
revolutions is acceptable. However, it is recommended to use the
coupling case with grease to obtain longer service life.
3. Grease that is very chemically stable with good lubrication
qualities is recommended.
1. Check the condition of the bolts periodically and tighten them if necessary.
2. Change the grease periodically as shown below.
3. If using the unit without a coupling case, apply grease periodically to prevent
rusting.
Exxon Mobil
Shell
Mobilux EP.1 or 2
Alvania EP.1 or 2
Exxon Mobil
Shell
Mobilux EP.1 or 2
Alvania EP.1 or 2
CR3812
CR4012
CR4014
CR4016
CR5014
CR5016
CR5018
CR6018
CR6022
0.04
0.07
0.08
0.10
0.12
0.14
0.20
0.32
0.40
CR8018
CR8022
CR10020
CR12018
CR12022
CR16018
CR16022
CR20018
CR20022
0.60
0.80
1.40
2.60
3.40
6.60
8.00
10.10
12.20
CR3812
CR4012
CR4014
CR4016
CR5014
CR5016
CR5018
CR6018
CR6022
0.04
0.07
0.08
0.10
0.12
0.14
0.20
0.32
0.40
CR8018
CR8022
CR10020
CR12018
CR12022
CR16018
CR16022
CR20018
CR20022
0.60
0.80
1.40
2.60
3.40
6.60
8.00
10.10
12.20
Coupling No. Filling
Amount(kg) Coupling No. Filling
Amount(kg)
Operating Conditions
1/2 or above maximum
allowable rotation speed
Less than 1/2 of maximum
allowable rotation speed
Change Interval
First change thereafter
1,000 hours Every
2,000 hours
2,000 hours Every
4,000 hours
CR3812
CR4012
CR4014
CR4016
CR5014
CR5016
CR5018
CR6018
CR6022
0.04
0.07
0.08
0.10
0.12
0.14
0.20
0.32
0.40
CR8018
CR8022
CR10020
CR12018
CR12022
CR16018
CR16022
CR20018
CR20022
0.60
0.80
1.40
2.60
3.40
6.60
8.00
10.10
12.20
http://www.tsubakimoto.jp
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