 Industrial Clutches | P Series
P Series: Stationary Cylinder for Precise Alignment
|
Sealed Ball Bearings for Positive Lubrication
The P series design is similar to the S series, which is designed for wet operation. The difference between the two models occurs in the bearings. P Series bearings are pre-lubricated and sealed and do not require external lubrication.
Torque ratings are based on the P Series disc pack operating in dry conditions thus requiring lower actuation pressure to achieve relatively high rates of torque.
|
Features
-
Hydraulic or Pneumatic Actuation
-
Sealed Pre-lubricated Bearings
-
Dry Applications
-
Stationary Cylinder and Piston
-
Fast Response / Lower Inertia
-
Easy Installation
-
Minimal Actuating Flow
-
Positive Disengagement
-
Can be Modified to Meet Specific
-
Application Requirements
|
Hydraulic/Pneumatic Clutch For Dry Operation
|
|
Hydraulic/Pneumatic Clutch For Dry Operation
Operation: Pressurizing the cylinder with fluid or air forces the piston to clamp and lock the friction and separator discs, and release springs. Torque is transferred through the clutch to the drive cup. When pressure is removed, the release springs separate the separator and friction discs and maintain a running clearance between separator and friction disc surfaces. Torque ratings are based on dry operation, thus requiring low actuation pressure to achieve high rates of torque.
Lubrication:
P Series clutches and brakes are designed primarily for dry operation. Bearings are greased and sealed and do not require external lubrication.
|
|
P Series Torque and Speed Capacities @ 100 PSI (6.9) BAR
|
|
Model
|
Unit
|
Torque
|
Max. RPM
|
|
350
|
Ft. lbs
|
323
|
3600
|
|
Nm
|
438
|
|
450
|
Ft. lbs
|
629
|
2700
|
|
Nm
|
853
|
|
550
|
Ft. lbs
|
1139
|
2200
|
|
Nm
|
1544
|
|
600
|
Ft. lbs
|
1609
|
2000
|
|
Nm
|
2182
|
|
700
|
Ft. lbs
|
2416
|
1600
|
|
Nm
|
3276
|
|
800
|
Ft. lbs
|
3609
|
1500
|
|
Nm
|
4894
|
|
*See the chart on page 7 for incremental torque ratings. 3. American National Pipe Thread. Modified standards available for specific design requirements.
Features
-
Maximum Torque / Minimum Envelope
-
Hydraulic or Pneumatic Actuation
-
Fast Engagement / Quick Release
-
Stationary Cylinder and Piston
-
Modified Standards for Specific Design Requirements
|
|
P Series Dimensions
|
P Series Dimensions
|
|
Model
|
Units
|
E
|
G
|
F
|
J
|
N
|
R
|
S
|
V
|
W
|
|
350
|
in
mm
|
3.50
89
|
3.81
97
|
6
|
.734
18.7
|
3.88
98
|
1.328 33.7
|
1.000
25.4
|
0.22
5.5
|
0.188
4.8
|
|
450
|
in
mm
|
4.50
114
|
4.88
124
|
6
|
.797
20.2
|
4.88
124
|
1.656 42.1
|
1.000
25.4
|
0.28
7
|
0.219
5.6
|
|
550
|
in
mm
|
5.50
140
|
6.00
152
|
12
|
.609
15.5
|
5.94
152
|
1.859 47.2
|
2.000
50.8
|
0.31
8
|
0.188
4.8
|
|
600
|
in
mm
|
6.00
152
|
6.56
167
|
12
|
.609
15.5
|
6.56
167
|
2.000 50.8
|
2.000
50.8
|
0.38
10
|
0.188
4.8
|
|
700
|
in
mm
|
7.00
178
|
7.63
194
|
12
|
.734
18.7
|
7.69
195
|
2.172 55.2
|
2.000
50.8
|
0.38
10
|
0.281
7.1
|
|
800
|
in
mm
|
8.00
203
|
8.63
219
|
12
|
.734
18.7
|
8.69
221
|
2.406 61.1
|
2.500
63.5
|
0.38
10
|
0.344
8.7
|
|
|
Model
|
Units
|
A max.1
|
A max.2
|
D
|
H3
|
K
|
L
|
X
|
Y
|
AA
|
|
350
|
in
mm
|
1.188
30
|
1.125
29
|
2.370 60.5
|
1/8-27
|
0.45
11
|
3.282 83.4
|
0.338
8.6
|
0.058
1.5
|
0.19
4.8
|
|
450
|
in
mm
|
1.813
46
|
1.750
44
|
3.312 84.1
|
1/8-27
|
0.37
9
|
3.817 97.0
|
0.346
8.8
|
0.087
2.2
|
0.07
1.7
|
|
550
|
in
mm
|
2.313
59
|
2.188
56
|
3.820 97.0
|
1/4-18
|
0.37
9
|
4.326
109.9
|
0.489
12.4
|
0.083
2.1
|
0.04
1.1
|
|
600
|
in
mm
|
2.625
67
|
2.500
64
|
4.010
101.9
|
1/4-18
|
0.36
9
|
4.578 116.3
|
0.494
14.0
|
0.099
2.5
|
0.02
0.5
|
|
700
|
in
mm
|
3.125
79
|
2.938
75
|
4.375
111.1
|
1/4-18
|
0.39
10
|
4.441 127.9
|
0.551
10.5
|
0.108
2.7
|
0.01
0.3
|
|
800
|
in
mm
|
3.375
86
|
3.250
83
|
4.820
122.4
|
1/4-18
|
0.46
12
|
5.544 140.8
|
0.411
10.4
|
0.155
3.9
|
0.01
0.3
|
|
Notes:
Unless otherwise noted, upper value units are inches; lower value units are millimeters.
Customer to specify dimensions A, B and C. Hub bore dimension A not to exceed maximum allowable bore.
|
-
Maximum allowable hub bore with standard rectangular key.
-
Maximum allowable hub bore with standard square key.
-
American National Pipe Thread.
|
A fixed orifice pressure regulated valve should be specified in the system to prevent over-pressurization of any Logan Clutch. The Logan warranty does not cover clutch failure due to over-pressurization. The highest pressure values in the torque tables are maximum ratings for Logan Clutches. All rotating components present a hazardous condition and should be guarded in accordance with OSHA requirements and other applicable laws, regulations and industrial standards.
Logan Clutch Corporation reserves the right to modify product specifications and designs without notice and without incurring obligations. Torque values are based upon disc packs having full contact between surfaces.
|
Operating Parameters
|
P Series
|
|
Model
|
(lb)
|
(lb-ft2)
|
Max. Speed
|
Cylinder Volume3
|
Actuating Flow4
|
|
(kg)
|
(kgm2)
|
(RPM)5
|
new disc
|
worn disc
|
GPM (LPM)
|
|
350
|
5.9
2.7
|
0.02
0.001
|
3600
|
0.8
13
|
1.2
20
|
1.8
7
|
|
450
|
12.0
5.4
|
0.10
0.004
|
2700
|
1.5
25
|
2.5
41
|
2.6
10
|
|
550
|
22.0
10.0
|
0.26
0.01
|
2200
|
2.0
33
|
3.8
62
|
4.0
15
|
|
600
|
28.0
12.7
|
0.40
0.02
|
2000
|
2.6
43
|
6.0
98
|
5.2
20
|
|
700
|
40.0
18.1
|
1.11
0.05
|
1600
|
3.3
54
|
7.3
120
|
8.6
33
|
|
800
|
57.0
25.9
|
2.02
0.08
|
1500
|
4.0
66
|
12.0
197
|
11.0
42
|
Logan Outperforms
Electromagnetic Clutches!
Logan has the design and manufacturing capability to replace existing and obsolete electromagnetic clutches with Logan technology.
Logan vs. Electromagnetic Clutches
-
Transmits more Torque and has higher RPM
capabilities within the same envelope
-
Eliminates residual DC magnetism in disc packs
and bearings-reduces downtime
-
Disc Pack, Bearing Kits and Seal Kits for Logan
clutches are available from stock
View of a modified standard Logan S 300 Series clutch (right) which replaced an Ortlinghaus style electromagnetic clutch (left). The clutch, drive cup and disc pack were modified on the Logan S300 to fit within the existing Electromagnetic clutch envelope.
Side view showing identical axial length, and 3-disc pack Configuration of the Logan S300 and Ortlinghaus style clutch.
|
|
|
Operating Parameter Notes:
|
Logan Seals / O-Rings are provided in a fluorocarbon elastomer having a 70 durometer. Operating temperature range is -15 to 400 degrees F (-26 to 204 degrees C).
-
Clutch weight: Based upon minimum hub bore. Does not include drive cup and friction discs.
-
Cylinder Volume: Upper value units are cubic inches; lower value units are cubic centimeters.
-
Actuating Flow: Based upon an actuating time of 0.1 second. Upper value units are gallons per minute; lower value units are liters per minute.
-
RPM: For higher operating speeds, contact Logan.
|
Static Torque Ratings
|
Static Torque Ratings
|
Selection Procedure
|
|
P Series Wet Operation
|
|
Model
|
PSI (Ratings in ft. lbs.)*
|
Bar (Ratings in Nm)
|
|
60
|
70
|
80
|
90
|
100
|
4.1
|
4.8
|
5.5
|
6.2
|
6.9
|
|
350
|
168
|
207
|
246
|
284
|
323
|
228
|
281
|
334
|
385
|
438
|
|
450
|
329
|
404
|
479
|
554
|
629
|
446
|
548
|
650
|
751
|
853
|
|
550
|
610
|
742
|
874
|
1006
|
1139
|
827
|
1006
|
1185
|
1364
|
1544
|
|
600
|
881
|
1063
|
1245
|
1427
|
1609
|
1195
|
1441
|
1688
|
1935
|
2182
|
|
700
|
1332
|
1603
|
1874
|
2145
|
2416
|
1806
|
2174
|
2541
|
2909
|
3276
|
|
800
|
1964
|
2376
|
2787
|
3198
|
3609
|
2663
|
3222
|
3779
|
4336
|
4894
|
*P torque values based on dry operating conditions.
Maximum recommended operating pressure 100 PSI (6.9) BAR
A fixed orifice pressure valve should be specified in the system to prevent over-pressurization of any Logan Clutch. The Logan warranty does not cover clutch failure due to over-pressurization. The highest pressure values in the torque tables are maximum ratings for Logan Clutches.
|
|
Example: Select a wet environment clutch
|
HP = 150
Clutch Speed = 800 RPM
Service Factor= 1.3
Available operating pressure = 150 psi.
|
T = 984 . 1.3 = 1280 lb. ft.
Choose model 800 in the R or S series.
|
|
Suggested Service Factor Table
|
|
Duty
|
SF
|
Small inertia
Low Cycle Rate
Non-pulsating Load
|
1.3 to 1.7
|
Large inertia
Low Cycle Rate
Non-pulsating Load
|
1.7 to 2.2
|
Large inertia
High Cycle Rate Pulsating Load
|
2.2 to 3.2
|
|
I. Calculate the torque requirement for the application using one of the following formula:
II. Identify which service factor best identifies your application from the suggested service factor table located at the bottom of this page.
III. Adjust the torque requirement using the selected service factor.
T= Tc . SF or T=Tb . SF
IV. Decide which series best fits your drive.
V. Using the appropriate series torque pressure graph, determine the model size.
Vl. Determine if the Series and models can:
1) Accommodate the shaft and key
2) Operate at the required speed
3) Fit within the available space
Vll. Determine the Drive Cup Mounting
Vlll. Call or fax Logan Clutch Corporation to review your selection and place your order. Application fact sheets are available online or from Logan Clutch.
HP = Horsepower
RPM = Clutch or Brake shaft speed
SF = Service Factor
T= Required Torque (Ib ft.)
Tb = Brake Torque (Ib. ft.)
Tc = Clutch Torque (Ib. ft.)
t = Time to stop (seconds)
WK2 = Total inertia to be stopped
(Ib.ft.2)
|
|
