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FLYWHEEL FOR INDUSTRIAL TYPE OVERCENTER
CLUTCHES
• Figure 6 shows the hollowed-out appearance of the fly-
wheels made for use with overcenter type clutch power
take-off assemblies.
• These flywheels will have a recessed bore machined
into the face, and a set of tapped holes, which will be
used to attach the coupling to the flywheel. Dimen-
sions are governed by an SAE standard and are listed
in Tables 1A and 1B, Figure 3. The "clutch size" shown in
the table is the nominal clutch facing diameter for Drive
Ring Type Overcenter Clutches.
OTHER FLYWHEELS
• Some engines are fitted with flywheels especially
machined for coupling to other kinds of machinery
(electrical generators, torque converters, etc.), and
require nonstandard flywheel couplings. These may be
purchased from third party vendors or suppliers.
Figure 6
Table IA –
Wide RPM Range, Elastomer Mounted Hub – Spline Shaft
Flywheel Dimensions
Clutch
D
Size
Size
E
BC
Qty.
(UNC)
6½"
6
5
⁄
-18 8½ OD 7.88 3.94
1 6
7½"
8
⁄
-18 9½" OD 8.75 3.69
5
1 6
8"
6
⁄
-16 10
⁄
" OD 9.62 4.81
3
3
8
8
10"
8
⁄
-16 12
⁄
" OD 11.62 4.47
3
3
8
8
10"
8
⁄
-16 12
⁄
" OD 11.62 4.47
3
3
8
8
11½"
8
3
⁄
-16 13
7
⁄
" OD 13.12 5.06
8
8
11½"
8
⁄
-16 13
⁄
" OD 13.12 5.06
3
7
8
8
14"
8
½-13 18
3
⁄
" OD 17.25 6.63
8
* R = Coupling Rating Max.
Coupling Rating = (Rated horsepower x 100) / Rated RPM
6
All manuals and user guides at all-guides.com
Flywheel Coupling
Shaft
F
G
H
R*
Catalog
Spline
Number
Dia.
1.19
1.69
7 A00569C 1 1½" 10T
1.19
1.69
7 A00569C 2 1½" 10T
2.44
2.94
7 A00569C 3 1½" 10T
2.13
2.75
7 A00569C 4 1½" 10T
2.13
2.75
9 A00569C 6 1½" 10T
1.56
2.69
7 A00569C 5 1½" 10T
1.56
2.69
9 A00569C 7 1½" 10T
1.00
2.13
9 A00569C 8 1½" 10T
Table IB –
Wide RPM Range, Elastomer Mounted Hub – Straight
Shaft
Flywheel Dimensions
Clutch
D
Size
Size
E
Qty.
(UNC)
6½"
6
⁄
-18 8½ OD 7.88 3.94
5
1 6
7½"
8
⁄
-18 9½" OD 8.75 3.69
5
1 6
8"
6
⁄
-16 10
⁄
3
3
8
8
10"
8
⁄
-16 12
⁄
3
8
3
8
11½"
8
3
⁄
-16 13
7
⁄
8
8
14"
8
3
⁄
-16 18
3
⁄
8
8
Dimensions in inches
* R = Coupling Rating Max.
Coupling Rating = (Rated horsepower x 100) / Rated RPM
(Spline)
• For Goulds Water Systems straight shaft keyed cou-
plings – Ensure that the coupling hub set screw is
backed out enough to ensure clearance for the shaft
key during assembly.
• Mount the coupling assembly to the engine flywheel
using the bolts provided torqued as follows in a cross-
ing sequence:
6½" or 7½" Flywheel – 11 lbs.-ft. (15 N . m)
8", 10" or 11½" Flywheel – 20 lbs.-ft. (27 N . m)
14" Flywheel – 50 lbs.-ft. (68 N . m)
(For other couplings follow manufacturers
recommended installation procedure.)
• Place the pump shaft key into the pump shaft (122) and
align the shaft to the coupling. Slide the pump into the
coupling until the engine adapter ring (340) contacts
the engine flywheel housing.
INSTALLATION OF COUPLING ON FLYWHEEL
Flywheel Coupling Overcenter Type:
• These couplings are aligned concentrically with the
flywheel by register fit on the flywheel.
• Be sure to remove all preservatives from the engine's
flywheel.
• Fit the coupling into the flywheel. Align the bolt holes
and engage coupling with register fit on flywheel. Tap
coupling with a soft heavy hammer, if necessary, to be
sure that it is seated flat against flywheel. Secure cou-
pling tightly to flywheel with capscrews and lockwasher.
Flywheel Coupling
BC
F
G
H
R*
2.28
1.19
1.69
3.51
2.28
1.19
1.69
3.51
2.28
" OD 9.62 4.81
2.44
2.94
3.51
2.28 CD1016
3.51 CD1025
" OD 11.62 4.47
2.13
2.75 5.71 CD1030
8.57 CD1050
11.23 CD1080
2.28 CD1116
3.51 CD1125
5.71 CD1130
" OD 13.12 5.06
1.56
2.69 8.57 CD1150
11.23 CD1180
12.62 CD1190
16.85 CD11110H
2.28 CD1416
3.51 CD1425
5.71 CD1430
" OD 17.25 6.63
1.00
2.13 8.57 CD1450
11.23 CD1480
12.62 CD1490
16.85 CD14110H
Shaft
Catalog Spline
Number
Dia.
CD616
CD625
CD716
CD725
CD816
CD825
1.625-
1.624Ø
⁄
x
⁄
3
3
8
1 6
Keyway
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