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Star Jaw Couplings
(Series ASJC)
Gear Couplings
Nylon Gear Couplings
SALIENT FEATURES Simple construction - quick easy installation - No special tools
required. Flexible insert caters for incidental angular, parallel and axial
misalignment.
Absorbs shock loads and damps small amplitude vibration.
Insert design presets correct distance between hubs, using raised pads
on each leg of the insert.
Available in a range of stock bore sizes. Can also be supplied with
finished bore & keyway.
Unaffected by moisture, grease and oils-including non-aromatic and non-ketone
solvents and temperatures with in range
– 40°C to +100° C.
Spacer coupling with spacer size depending upon the distance between
two shaft ends (DBSE).
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Star Jaw Coupling |
Opened Star Jaw Coupling |
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SELECTION
Details required for couplings selection
1. Type of driven machine and operating hours per day.
Speed and power absorbed by driven machine (if absorbed power is not
known, calculate on power rating of
prime mover).
3. Diameter of shafts to be connected.
4. Distance between two shaft ends in case of spacer coupling.
PROCEDURE
a) Service Factor
Determine the required service factor from table.
b) Design Power
Multiply the normal running power by the service factor. This gives the
Design Power which is used as a basis for selecting the coupling.
c) Coupling size
Depending upon the type of coupling required, refer to respective power
rating table. Power rating can be interpolated in relation to speed
parameters.
d) Bore Size
Check from the dimension table to see if bore capacity of the coupling
is adequate. Otherwise select next higher size coupling.
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Type of Driven Machine |
Type of Driving Unit |
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Electric Motors & Steam Turbines |
Internal Combustion Engines |
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More than six cylinders |
Less than six cylinders |
Uniform Load
Agitators, Brewing machinery, Centrifugal compressors and pumps,
Belt conveyors, Dynamometers, Lineshafts, Fans upto 7.5 kW, Blowers
and exhausters except positive displacement, Generators. |
1.0
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1.5
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2.0
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Moderate Shock
Clay working machinery, General machine tools, Paper mill beaters
and winders, Rotary pumps, Rubber extruders, Rotary screens, Textile
machinery, Marine propellers and fans over 7.5 kW. |
1.5
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2.0
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2.5
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Heavy Shock
Bucket elevators, Cooling tower fans, Piston compressors and pumps,
foundry machinery, metal presses, Paper mill calendars, Hammer
mills, Presses and pulp grinders, Rubber calendars, Pulverisers and
positive displacement blowers. |
2.0
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2.5
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3.0 |
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STANDARD COUPLING
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Size |
Power per 100
rev/min
kW |
Bore in mm |
Dimensions |
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Min. |
Max. |
A |
B |
D |
F |
G |
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A - 095 |
0.21 |
15 |
28 |
63 |
54 |
49 |
2 |
25 |
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A - 099 |
0.39 |
20 |
30 |
72 |
65 |
51 |
2 |
27 |
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A - 0100 |
0.50 |
20 |
38 |
88 |
65 |
57 |
2 |
35 |
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A - 0110 |
0.92 |
20 |
42 |
108 |
85 |
76 |
3 |
43 |
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A - 0150 |
1.50 |
30 |
48 |
115 |
96 |
80 |
3 |
45 |
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A - 0190 |
2.02 |
36 |
55 |
133 |
115 |
102 |
3 |
54 |
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A - 0225 |
2.75 |
40 |
60 |
153 |
127 |
108 |
3 |
64 |
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CUSHION COUPLING
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Size |
Power per 100
rev/min
kW |
Bore in mm |
Dimensions |
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Min. |
Max. |
A |
B |
D |
F |
G |
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A - 226 |
3.45 |
25 |
65 |
178 |
143 |
115 |
3 |
70 |
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A - 276 |
5.60 |
25 |
75 |
200 |
163 |
127 |
3 |
80 |
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A - 280 |
8.20 |
30 |
75 |
200 |
200 |
140 |
3 |
80 |
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A - 295 |
13.40 |
40 |
90 |
238 |
245 |
160 |
3 |
95 |
TYPICAL APPLICATIONS
Pumps including back-pull-out type, Conveyors, Elevators, Packaging
machinery, food Processing Plants, Compressors, General Machine tools,
Blowers, Paper Mill Beaters and Calendars, etc.
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