Air Tube Disc Clutches and Brakes
High Torque Clutches
Very Low Inertia
Drive Plate Assembly
Ring
Bonded or Riveted
Shims
High Torque
Air-Tube
Floating Plate
Hub
Ductile Center
Plate
Grooved Friction
Disc
Demountable
Backplate
(Optional)
Pressure
Plate
Airtube Holding
Plate
Roto-coupling
Wichita High Torque Clutches provide the
highest torque to size ratios of any Wichita
Clutch. They provide smooth controlled starts
and stops and are designed for minimum
power loss due to low rotating inertia.
• Extremely fast response
• No lubrication
• High torque to size ratio
• Low rotating inertia
44 Wichita Clutch 800-964-3262
Selection Requirements
To properly select a High Torque Clutch
and Low Inertia Brake, the following
information must be determined.
1. Torque necessary to do the work (clutch)
2. Rotating inertia to be stopped and started
3. Heat generated by each stop/start
4. Torque necessary to stop inertia (brake)
5. Shaft size
P-1100-WC 1/12
Air Tube Disc Clutches and Brakes
Data
Rated Tonnage. . . . . . . . . . . . . . . . . . . . As Re quired
Crankshaft Speed . . . . . . . . . . . . . . . . . 30 RPM
(Continuous Run)
Clutch-Brake Shaft RPM . . . . . . . . . . . . 204 RPM
Crankshaft Speed . . . . . . . . . . . . . . . . . 30 RPM
Degrees of Crank to start . . . . . . . . . . . 90°
Degrees of Crank to stop . . . . . . . . . . . 90°
Connecting Rod Length = b . . . . . . . . . 36 in.
Stroke. . . . . . . . . . . . . . . . . . . . . . . . . . . 6 in.
1/2 of Press Stroke (throw) = a . . . . . . . 3 in.
2
of Parts on Backshaft . . . . . . . . . . 78.2 lb.ft.
WR
WR2of Parts on Crankshaft . . . . . . . . . . 39,091 lb.ft.
Material Shear Stress. . . . . . . . . . . . . . . 45,000 PSI
Blade Width . . . . . . . . . . . . . . . . . . . . . . 60 in.
Shaft Size . . . . . . . . . . . . . . . . . . . . . . . . 4 in.
Maximum Material to be Sheared . . . . . x
Air Pressure Available . . . . . . . . . . . . . . 100 PSI
2
2
Selection Example
B
Calculations
Torque @ Crank
=
(Material Shear Stress) (x) (Blade Width) (Torque Arm)
Torque arm = y = (x) (tan α )
c = a + b – x
= 3 + 36 – .25
= 38.75 in.
Cos α
=b
2 bc
=(36)
(2) (36) (38.75)
= .99948
α = 1.8478˚
Torque Arm = y = (c) (tan α )
= (38.75) (tan 1.8478˚)
= (38.75) (.03226)
= 1.25 in.
Torque @ Crank
=
= (45,000) (.25) (60) (1.25)
= 843,750 lb.in.
Torque @ Clutch
=
= 843,750 ÷
30 RPM
= 124,081 lb.in.
2
+ c2– a
2
2
+ (38.75)2– (3)
2
(Material Shear Stress) (x) (Blade Width) (Torque Arm)
(Torque @ Crank) ÷
204 RPM
Clutch RPM
Crankshaft RPM
P-1100-WC 1/12
Wichita Clutch 800-964-3262 45
Air Tube Disc Clutches and Brakes
High Torque Clutches
Clutch Selection
Per the application factors on page 23 a “Back
Geared Press is ‘Group C’.”
HP Torque 124,081
100 RPM
The preliminary clutch selection based on
124,081 lb.in. and 197 HP/100 RPM is an
ATD-224 Low Inertia High Torque Clutch.
(page 48)
A Low Inertia High Torque Clutch was chosen
because of the continuous duty (non-cyclic)
operation having a rel a tive ly low heat HP
requirement.
ATD-224 Low Inertia High Torque Clutch =
280 HP/100 RPM
Rated Torque = 480,000 lb.in @ 100 PSI
Required clutch air pressure is:
PSI =
Actual required clutch PSI
PSI =
This application has 100 PSI available.
=
Clutch required torque x (100 PSI)
Catalog rated torque @ 100 PSI
124,081
480,000
= 26 PSI minimum is required.
630
x (100 PSI)
=
630
= 197
Estimated time to start
= Start Angle 60
360° Crankshaft RPM
= 90˚ 60 = 0.5 sec.
360˚ 30
P
= Line pressure to clutch
1
P
= Required pressure to clutch
2
LN = Natural log
k = Inflation coefficient
(ATD-224 H.T. @ 100 PSI)
= 2,600
u = For ATD-224 H.T. Clutch @ 100 PSI
= 2.5
Time to 26% of line pressure.
LN
t =
t =
= 0.027 seconds
Clutch will be fully inflated at 90˚ of crank shaft
rotation.
LN
[ ]
2,600
P
1
[ ]
P1- P
2
k
100
[ ]
100 - 26
1
u
1
2.5
Contact velocity of rotating disc is:
(Diameter of Center Plate) (π) (RPM)
V
=
c
24 ft.
=
12
(Ductile iron is not required, see page 23).
Maximum bore for ATD-224 High Torque Low
Inertia Clutch = 7 in.
Check clutch inflation time for 90˚ start angle (see
page 52, PSI pressure curves)
12 in.ft.
(π) (204) = 1,282
min.
Clutch exhaust time @ 100 PSI = E = .078
(page 52).
Note:
This application example is for preliminary
sizing only. Contact a Wichita Sales Engineer
or the factory for final selection.
46 Wichita Clutch 800-964-3262
P-1100-WC 1/12
Low Inertia Brake Selection
To properly size a brake, the total rotating inertia
reflected to the clutch and brake shaft must be
known.
Alternate shaft WR
referred to clutch shaft
= Alternate Alternate shaft RPM
shaft WR
= 39,091 30
2
2
clutch shaft RPM
[ ]
204
2
2
[ ]
2
WR
referred to = 845.4 lb.ft
clutch-brake shaft @204 RPM
Total inertia = 78.2 lb.ft.
Back shaft WR
Clutch hub &
drive plate WR
Specification Table
Estimate brake WR
(assume same as clutch)
Total WR
to clutch-brake (Estimated)
Estimated time to stop:
= Start Angle 60
360º
=
[ ]
360º
The deceleration torque is:
T= 12
2
2
from = 101.0 lb.ft.
2
= 101.0 lb.ft.
2
referred = 1,125.66 lb.ft.
[ ]
90º 60
2
WR
[ ] [ ]
32.2 9.5(t)
Crankshaft RPM
[ ]
[ ]
30
Brake RPM
2
2
2
2
= .5 sec.
Air Tube Disc Clutches and Brakes
High Torque Clutches
The actual
deceleration torque 32. 2 9.5
= 16,575 lb. in.
Required air pressure is:
=Brake required torque x (100 PSI)
Brake
Catalog rated torque @ 100 PSI
=16,575 lb. in.
55,250 lb. in.
= 30 PSI minimum
This application has 100 PSI available.
The average heat HP each stop
=(Brake Torque)
63,000
=16,575
63,000
= 26.8 HP
Friction area necessary to absorb heat =
= Heat HP = 26.8
.7 .7
An ATD-214 Low Inertia Brake has 316 in.
2
friction lining available to absorb heat
generated by stopping. Maximum bore for
an ATD-214 Low Inertia Brake is 4-1/8 inches.
Based on the given application data and
the following calculations, an ATD-224 Low
Inertia High Torque Clutch and ATD-214
Low Inertia Brake have been selected as
having sufficient torque and heat dissipation
capacity with minimum diameter and
sufficient bore capacity.
x 204 x .5
1035.6 204
= 12
[ ] [ ]
x 100
x RPM x 1/2
= 39 in.
heat HP
Absorbtion rate for .5 sec.
2
2
(see page 174 )
of
B
= 12
Deceleration Torque = 18,015 lb.in.
The HP / 100 RPM for this application is:
HP =Torque (lb.in.) = 18,015
100 RPM 630 630
Consult the Specification Table on pages 36-37
to select a brake based on torque and HP/
100 RPM. Under "Duty C", an ATD-214 brake
has 32 HP/100 capacity and 55,250 lb.in.
torque. The rotating inertia of an ATD-214
Low Inertia Brake is 11 lb.ft.
actual rotating inertia reflected to brake is
1035.6 lb.ft.
P-1100-WC 1/12
1125.6 204
32.2 9.5 (.5)
[ ] [ ]
2
. Therefore, the
2
.
Note:
These application examples are for
preliminary sizing only. Contact a
Wichita Sales Engineer or the
factory for final selection.
= 29 HP/100 RPM
Wichita Clutch 800-964-3262 47
Air Tube Disc Clutches and Brakes
High Torque Clutches
Specifications
Model Slip Torque Capacity Duty Factors Max. Bore
Size Assembly lb.in. Nm HP/100 RPM Rect. Key
ATD- Number 80 PSI 100 PSI 5.5 BAR 7 BAR ABCDin. (mm)
HTC 104 6-004-100-400-0 800 1,000 90 113 1.6 1.2 0.6 0.3
HTC 204 6-004-200-802-0 1,600 2,000 180 226 3.2 2.4 1.2 0.6
HTC 106 6-006-100-400-0 4,000 5,000 475 602 8 5.7 2.8 1.4
HTC 206 6-006-200-400-0 8,000 10,000 950 1,204 16 11.4 5.7 2.8
HTC 108 6-008-100-407-0 8,800 11,000 977 1,243 17 13 63
HTC 208 6-008-200-417-0 17,600 22,000 1,953 2,486 34 25 13 6 2.38 (60)
HTC 308 6-008-300-400-0 26,400 33,000 2,930 3,729 51 38 19 9
HTC 111 6-011-100-408-0 20,000 25,000 2,220 2,825 38 28 14 7
HTC 211 6-011-200-422-0 40,000 50,000 4,440 5,650 76 56 28 14 2.63 (67)
HTC 311 6-011-300-406-0 60,000 75,000 6,660 8,475 114 84 42 21
HTC 114 6-014-100-405-0 38,400 48,000 4,261 5,423 75 55 27 14 4.13 (105)
HTC 214 6-014-200-403-0 76,800 96,000 8,522 10,846 160 114 55 28 3.63 (92)
HTC 314 6-014-300-411-0 115,200 144,000 12,783 16,269 225 165 81 42 4.63 (118)
HTC 116 6-016-100-403-0 59,480 74,350 6,600 8,400 118 91 47 24
HTC 216 6-016-200-402-0 118,960 148,700 13,200 16,800 236 182 94 47 4.00 (102)
HTC 316 6-016-300-401-0 178,440 223,050 19,800 25,200 354 272 142 71
HTC 118 6-018-100-400-0 84,000 105,000 9,321 11,863 165 120 60 30
HTC 218 6-018-200-400-0 168,000 210,000 18,642 23,726 330 240 120 60 4.75 (120)
HTC 318 6-018-300-400-0 252,000 315,000 27,963 35,589 495 360 180 90
HTC 121 6-021-100-400-0 136,000 170,000 15,091 19,207 270 208 108 54
HTC 221 6-021-200-401-0 272,000 340,000 30,182 38,414 540 415 216 108 6.00 (152)
HTC 321 6-021-300-400-0 408,000 510,000 45,273 57,621 810 623 324 162
HTC 124 6-024-100-401-0 192,000 240,000 21,305 27,116 385 280 140 70
HTC 224 6-024-200-405-0 384,000 480,000 42,610 54,232 770 560 280 140
HTC 324 6-024-300-401-0 576,000 720,000 63,915 81,348 1,155 840 420 210
HTC 424 6-024-400-400-0 768,000 960,000 85,220 108,464 1,540 1,120 560 280
HTC 127 6-027-100-404-0 289,680 362,100 32,144 40,911 575 442 230 115
HTC 227 6-027-200-411-0 579,360 724,200 64,288 81,821 1,150 884 460 230
HTC 327 6-027-300-402-0 869,040 1,086,300 96,432 122,732 1,724 1,326 690 345 6.00 (152)
HTC 130 6-030-100-400-0 376,000 470,000 41,722 53,101 750 535 270 135
HTC 230 6-030-200-408-0 752,000 940,000 83,445 106,203 1,500 1,070 540 270
HTC 330 6-030-300-415-0 1,128,000 1,410,000 125,167 159,304 2,250 1,605 810 405 8.00 (203)
HTC 136 6-036-100-400-0 752,000 940,000 84,445 106,200 1,555 1,120 560 280
HTC 236 6-036-200-409-0 1,504,000 1,880,000 166,890 212,400 3,100 2,240 1,120 560
HTC 336 6-036-300-404-0 2,256,000 2,820,000 250,335 318,600 4,665 3,360 1,680 840 9.25 (235)
HTC 148 6-048-100-400-0 1,888,000 2,360,000 209,500 266,637 3,745 2,690 1,345 670
HTC 248 6-048-200-406-0 3,776,000 4,720,000 419,000 533,273 7,490 5,380 2,690 1,345 18.00 (455)
HTC 348 6-048-300-403-0 5,664,000 7,080,000 628,500 799,910 11,235 8,070 4,035 2,010
Maximum Air Pressure is 100 PSI / 7 BAR.
1.00 (25)
2.00 (50)
6.00 (152)
6.50 (165)
7.25 (184)
8.00 (203)
48 Wichita Clutch 800-964-3262
P-1100-WC 1/12
Air Tube Disc Clutches and Brakes
High Torque Clutches
Specifications
Recom- Max. Speed Airtube
Model mended Balance Reg- High Swept Volume Total Clutch Hub & Center Plate
Size Clearance Speed Speed Speed Area in.3(cm3) Wt. WR2/ J=mr
ATD- in. RPM RPM RPM* in.2New Worn lb. (kg) lb.ft.
HTC 104 1/32-1/16
HTC 204 1/32-1/16 34 (21.3) (82) 14.0 (6) 0.6 (0.023) 3.88 (1.8) 0.04 (0.002)
HTC 106 1/16-3/32
HTC 206 3/32-5/32 78 (49) (229) 44.2 (20) 3.1 (0.131) 12.60 (5.7) 0.50 (0.021)
HTC 108 1/16-1/8 56
HTC 208 3/32-5/32 1,675 1,890 2,500* 112 148.4 (67) 28.72 (1.211) 30 (13.6) 2.60 (0.110)
HTC 308 1/8-3/16 168
HTC 111 1/16-1/8 114
HTC 211 3/32-5/32 1,200 1,430 2,200* 228 170 (77) 34 (1.43) 45 (20.4) 4.50 (0.190)
HTC 311 1/8-3/16 342
HTC 114 1/16-1/8 158
HTC 214 3/32-5/32 950 1,225 1,930* 316 265 (120) 70 (2.95) 78 (35.4) 11.2 (0.472)
HTC 314 1/8-3/16 474
HTC 116 1/16-1/8 228
HTC 216 3/32-5/32 835 1,080 1,700* 455 295 (134) 105 (4.43) 107 (48.5) 19.6 (0.826)
HTC 316 1/8-3/16 683
HTC 118 1/16-1/8 264
HTC 218 3/32-5/32 750 985 1,530* 528 485 (220) 200 (8.43) 118 (53.5) 28.8 (1.214)
HTC 318 1/8-3/16 792
HTC 121 3/32-5/32 362
HTC 221 1/8-3/16 650 850 1,400* 724 697 (316) 427 (18.00) 198 (89.8) 61 (2.57)
HTC 321 5/32-7/32 1,086
HTC 124 3/32-5/32 574 702 (318) 498 (20.99) 134 (60.8) 56 (2.4)
HTC 224 1/8-3/16
HTC 324 5/32-7/32 1,722 (819) (4,097) 1,190 (540) 856 (36.09) 386 (175.1) 163 (6.9)
HTC 424 3/16-1/4 2,296 1,291 (586) 917 (38.66) 466 (211.4) 209 (8.8)
HTC 127 3/32-5/32 730
HTC 227 1/8-3/16 500 700 1,090* 1,460 1,192 (541) 968 (40.8) 304 (137.9) 191 (8.1)
HTC 327 5/32-7/32 2,190
HTC 130 3/32-5/32 827
HTC 230 1/8-3/16 450 620 1,000* 1,654 1,925 (873) 2,425 (102.2) 529 (240.0) 369 (15.6)
HTC 330 5/32-7/32 2,481
HTC 136 3/32-5/32 1,150 2,190 (993) 3,650 (153.9) 376 (170.6) 368 (15.5)
HTC 236 1/8 -3/16
HTC 336 5/32-7/32 3,450 (1966) (12618) 3,221 (1,461) 4,866 (205.1) 1,206 (547.0) 1,140 (48.1)
HTC 148 1/8-1/4 2,010
HTC 248 7/32-9/32 275 380 580* 4,020 8,497 (3,854) 28,356 (1,195) 1,994 (904) 3,411 (144)
HTC 348 3/16-5/16 6,030
* Consult Factory for Special Assembly Number.
NA 2,100 2,600*
NA 2,100 2,600*
550 765 1,210*
375 525 800*
17 1.3 5 11.0 (5) 0.4 (0.018) 1.50 (0.7) 0.021 (0.001)
39 3 14 22.5 (10) 1.4 (0.059) 6.40 (2.9) 0.24 (0.010)
5 30
(82) (492)
8 48
(131) (787)
12 75
(197) (1,229)
10 56
(164) (918)
18 101
(295) (1,655)
38 201
(623) (3,294)
1,148 50 250 920 (417) 635 (26.77) 260 (117.9) 110 (4.6)
61 323
(1,000) (5,293)
80 395
(1,311) (6,473)
2,300 120 770 2,800 (1,270) 4,390 (185.1) 750 (340.2) 755 (31.8)
200 1,430
(3,277) (23,434)
109.4 (50) 21.43 (0.903) 15 (6.8) 1.35 (0.057)
140 (64) 30 (1.265) 40.5 (18.4) 4.00 (0.169)
133 (60) 27 (1.14) 23 (10.4) 2.30 (0.097)
208 (94) 52 (2.19) 121 (54.9) 7.00 (0.295)
120 (54) 31 (1.31) 48 (21.8) 5.6 (0.236)
279 (127) 72 (3.04) 31 (14.1) 15.1 (0.637)
236 (107) 84 (3.54) 50 (22.7) 8.2 (0.346)
357 (162) 120 (5.06) 151 (68.5) 28.6 (1.206)
375 (170) 182 (7.67) 80 (36.3) 15.6 (0.658)
530 (240) 250 (10.54) 180 (81.6) 45.0 (1.897)
557 (253) 334 (14.08) 101 (45.8) 31 (1.31)
757 (343) 400 (16.86) 290 (131.5) 122 (5.14)
989 (449) 785 (33.1) 168 (76.2) 98 (4.1)
1,413 (641) 1,183 (49.9) 455 (206.4) 283 (11.9)
1,525 (692) 1,836 (77.4) 272 (123.4) 186 (7.8)
2,240 (1,016) 2,720 (114.7) 800 (362.9) 495 (20.9)
7,326 (3,323) 25,703 (1,084) 1,711 (776) 1,828 (77)
9,768 (4,431) 32,008 (1,349) 2,708 (1,228) 4,899 (207)
2
2
Wt. WR2/ J=mr
(kgm2) lb. (kg) lb.ft.2(kgm2)
2
B
P-1100-WC 1/12
Wichita Clutch 800-964-3262 49
Air Tube Disc Clutches and Brakes
High Torque Clutches
Component Parts
1. Hub
2. De mount able Backplate
3. Socket Head Capscrews
4. Ring
6. Grooved Friction Disc
(grooved on one side)
7. Center Plate
9. Grooved Friction Disc
10. Pres sure Plate
11. Pan cake Air Tube
12. Shims
13. Air Tube Holding Plate
14. Sock et Head Capscrews
20. Hex Head Capscrew
21. Release Springs
22. Flexloc Nut
23. Internal Roto-Coupling
24. ”O“ Ring
25. Snap Ring
26. Flat head Socket Capscrew
27. Slot ted Flush Nut
50 Wichita Clutch 800-964-3262
P-1100-WC 1/12
Air Tube Disc Clutches and Brakes
High Torque Clutches
Inflation Coefficients
Model Inflation Coefficients Operating Air Pressure
Size 50 PSI 75 PSI 100 PSI
ATD- K U K U K U
111 393,000 3 151,000 3 5,100 4
211 393,000 3 151,000 3 5,100 4
114 49,000 3 30,000 3 17,600 3
214 49,000 3 30,000 3 17,600 3
118 5,700 2.8 5,700 2.8 7,500 3
218 5,700 2.8 5,700 2.8 7,500 3
124 10,400 3 5,200 2.7 2,600 2.5
224 10,400 3 5,200 2.7 2,600 2.5
130 940 2.2 1,070 2.2 590 2
230 940 2.2 1,070 2.2 590 2
136 77,000 3.5 58,000 3.5 44,000 3.5
236 77,000 3.5 58,000 3.5 44,000 3.5
148 1,200 2.5 1,240 3.5 800 2.5
248 1,200 2.5 1,240 3.5 800 2.5
B
Exhaust Coefficients
Model Exhaust Coefficients Operating Air Pressure
Size 50 PSI 75 PSI 100 PSI
ATD- R E V R E V R E V
111 480,000 .04 4 180,000 .05 4 * .056 5
211 480,000 .04 4 180,000 .05 4 * .056 5
114 5,600 .032 2.5 2,200 .044 2.5 910 .064 2.5
214 5,600 .032 2.5 2,200 .044 2.5 910 .064 2.5
118 4,100 .062 3 9,800 .1 4 8,500 .104 4
218 4,100 .062 3 9,800 .1 4 8,500 .104 4
124 280 .06 2 775 .068 2.5 575 .078 2.5
224 280 .06 2 775 .068 2.5 575 .078 2.5
130 690 .072 2.5 500 .083 2.5 500 .084 2.5
230 690 .072 2.5 500 .083 2.5 500 .084 2.5
136 86 .048 1.5 76 .056 1.5 1,100 .064 1.5
236 86 .048 1.5 76 .056 1.5 1,100 .064 1.5
148 160 .11 2.3 120 .136 2.4 111 .15 2.5
248 160 .11 2.3 120 .136 2.4 111 .15 2.5
* 1.88 x 10
6
P-1100-WC 1/12
Wichita Clutch 800-964-3262 51
Air Tube Disc Clutches and Brakes
Air System Data
PSI pressure
Inflation
Exhaust
Clutch air pressure during inflation can be
closely estimated by the following:
Clutch pressure = P
(inflation)
This equation is accurate from 5% up
to 95% P
= Line pressure to clutch PSI
P
1
K and U = coefficients for specific clutch and
e = Naperian base log
t
= Time at initiation of signal for
o
t
= Time delay of air system – sec.
d
.
1
air pressure from Spec i fi ca tion Table on
page 51.
inflation sec.
1
1 –
1
(
PSI
u
)
Kt
e
Clutch air pressure during exhaust
can be closely estimated by the fol low ing:
Clutch pressure = (P
(exhaust)
R, E and V = coefficients for specific clutch
and air pressure from Spec i fi ca tion
Table on page 51.
t
= Time to exhaust = E from Spec i fi ca tion
e
Table on page 51.
t = Time variable – seconds. In the
ex haust equa tion “t” cannot
exceed the value of “E” sec.
Shown are some of the air systems used
on Wichita clutches. These systems are
ac cept able for remote op er a tion where clutch
reaction time is not important. Faster clutch re ac tion time is ac com plished as in di cat ed in the
di a gram by lo cat ing the flow control valve, if
re quired, and the so le noid valve as close as
possible to the roto-cou pling. Where clutches
are located on long shafts, the use of quick
release valves on the clutch will fa cil i tate faster
clutch response.
) (R) (E-t)vPSI
1
52 Wichita Clutch 800-964-3262
P-1100-WC 1/12
Overlap
A typical clutch-brake torque curve for a single backshaft
press (cyclic ap pli ca tion) would appear as shown below.
Time (sec.)
t
= time at which disengaged clutch
O
c
receives signal
t
= time of clutch en gage ment
C
c
= time of clutch full inflation
t
1
c
= time at which disengaged brake
t
B
O
receives signal
Air Tube Disc Clutches and Brakes
Air System Data
PSI pressure
B
t
= time of brake engagement
B
c
= time of brake full exhaust
t
1
B
t2 = overlap time at which clutch and brake
are both engaged
P-1100-WC • 1/11
Wichita Clutch 800-964-3262 53
Air Tube Disc Clutches and Brakes
High Torque Clutches
Sizes 4-24
54 Wichita Clutch 800-964-3262
P-1100-WC 1/12
Air Tube Disc Clutches and Brakes
High Torque Clutches
Dimensions: inches (mm)
Sizes 4-24
Model BC
Size ATD- A Hole Circle Pilot DE FGH
2
HTC 104
HTC 2042(187.5) (174.63) (111.13 / 111.20) (162.1) 2.50 (63.5) 1.88 (47.8) 0.00 (0.0) 3.19 (81.0)
HTC 106
HTC 206 (222.3) (203.20) (187.38 / 187.43) (223.8) 6.25 (158.8) 3.25 (82.6) 0.06 (1.5) 5.75 (146.1)
HTC 108112.13 11.125 8.375 / 8.378 11.13 6.21 (157.7) 1.50 (38.1)
HTC 2081(308.1) (282.58) (212.73 / 212.80) (282.7) 7.52 (191.0) 2.88 (73.2) 5.68 (144.3)
HTC 111116.00 14.750 11.375 / 11.378 14.75 7.82 (198.6) 2.00 (950.8)
HTC 2111(406.4) (374.65) (288.93 / 289.00) (374.7) 9.63 (244.6) 3.75 (95.3) 7.25 (184.2)
HTC 114
HTC 214 10.50 (266.7) 4.50 (114.3) .38 (9.7) 7.88 (200.2)
HTC 314
HTC 116
HTC 216 11.16 (283.5) 4.75 (120.7) 0.38 (9.7) 8.66 (220.0)
HTC 316
HTC 118
HTC 218 11.20 (283.5) 4.75 (120.7) 0.44 (11.2) 9.03 (229.4)
HTC 318
HTC 121
HTC 221 11.83 (300.5) 5.13 (130.3) 0.75 (19.1) 9.69 (246.1)
HTC 321
HTC 124
HTC 224 12.38 (314.5) 3.50 (88.9) 0.75 (19.1) 10.69 (271.5)
HTC 324
HTC 424
7.38 6.875 4.375 / 4.378 6.38 3.38 (85.9) 1.00 (25.4) 0.06 (1.5) 2.50 (63.5)
3
8.75 8.000 7.377 / 7.379 8.81 5.03 (127.8) 2.00 (50.8) 0.00 (0.0) 4.53 (115.1)
0.50 (12.7)
0.50 (12.7)
1
18.75 17.500 14.375 / 14.378 17.50
(476.3) (444.50) (365.13 / 365.20) (444.5)
3
21.25 20.000 16.250 / 16.253 20.00
(539.8) (508.00) (412.75 / 412.83) (508.0)
23.25 22.000 18.250 / 18.253 22.00
(590.6) (558.80) (463.55 / 463.63) (558.8)
27.00 25.500 21.375 / 21.378 24.88
(685.8) (647.70) (542.93 / 543.00) (632.0)
30.00 28.750 24.375 / 24.378 28.00
(762.0) (730.25) (619.13 / 619.20) (711.2)
29.00 26.75 25.500 /25.503 28.00
3
(736.6) (679.5) (647.70 / 647.78) (711.2)
8.39 (213.1) 3.75 (95.3) .13 (3.3) 6.06 (153.9)
10.00 (254.0) 4.50 (114.3) .38 (9.7) 7.88 (200.2)
9.16 (232.7) 2.75 (69.9) 6.78 (172.2)
13.06 (331.7) 6.63 (168.4) 10.69 (271.5)
9.28 (235.7) 2.75 (69.9) 7.16 (181.9)
12.81 (325.4) 6.50 (165.1) 10.94 (277.9)
10.19 (258.8) 2.88 (73.2) 0.69 (17.5) 7.56 (192.0)
14.19 (360.4) 7.13 (181.1) 0.75 (19.1) 12.06 (306.3)
10.06 (255.5) 3.50 (88.9) 0.38 (9.7) 8.38 (212.9)
14.69 (373.1) 5.13 (130.3) 0.75 (19.1) 13.00 (330.2)
15.64 (397.3) 8.38 (212.9) 0.72 (18.3) 13.81 (350.8)
4.37 (111.0)
5.44 (138.2)
B
Dimensions: inches (mm)
Model L U
Size ATD- IJNo. - Size MNQSMin. Max.
HTC 104 .38 (9.7)
HTC 204 .63 (16) (12.7) (25)
HTC 106 .94 (23.9)
HTC 206 .82 (20.8) (25) (50.8)
HTC 108 .81 (20.6)
HTC 208 .75 (19.1) (25) (60.5)
HTC 111 1.06 (26.9)
HTC 211 1.12 (28.4) (25) (66.8)
HTC 114 1.06 (26.9) .38 (9.7) 11/16 (17.5) 9.44 (239.8) 5.62 (142.7) 1.13 (28.7)
HTC 214 .81 (20.6) .38 (9.7) 8 - 21/32 (16.7) 9.44 (239.8) 5.50 (139.7) 0.63 (16.0) 1/2 NPT 3.63 (92.2)
HTC 314 .94 (23.9) .13 (3.3) 5/8-11NC 9.50 (241.3) 6.66 (169.2) —
HTC 116 1.25 (31.8) 11/16 (17.5)
HTC 216 1.25 (31.8) 0.38 (9.7) 12 - 21/32 (16.7) 10.50 (266.7) 6.00 (152.4) 0.63 (16.0) 1/2 NPT
HTC 316 1.13 (28.7) 21/32 (16.7)
HTC 118 21/32 (16.7)
HTC 218 1.44 (36.6) 0.38 (9.7) 12 - 11/16 (17.5) 12.50 (317.5) 7.00 (177.8) 0.63 (16.0) 1/2 NPT
HTC 318 21/32 (16.7)
HTC 121 1.50 (38.1)
HTC 221 1.31 (33.3) 0.31 (7.9) 12 - 21/32 (16.7) 14.50 (368.3) 9.00 (228.6) 0.75 (19.1) 1/2 NPT
HTC 321 1.44 (36.6)
HTC 124 1.13 (28.7)
HTC 224 1.38 (35.1) 0.25 (6.4) 12 - 21/32(16.7) 14.50 (368.3) 9.00 (228.6) 0.75 (19.1) 1/2 NPT 2.00 6.00
HTC 324 1.56 (39.6) (50.8) (152.4)
3
HTC 424
Note: For mounting, use socket head capscrews conforming to the ASTM-574-97a.
1
Non-Ventilated center plate, "centerplate is solid".
2
Drive plate assembly, "friction material is attached to a drive plate".
3
Less backplate.
(Consult factory for drawing before final layout.)
1.56 (39.6) 0.13 (3.3) 12 - 5/8-11NC 14.50 (368.3) 9.00 (228.6) — 1/2 NPT 2.00 (50.8) 6.00 (152.4)
0.13 (3.3) 6 - 9/32 (7.1) 2.88 (73.2) 2.58 (65.5) 0.38 (9.7) 5/8-18NF
0.06 (1.5) 4 - 11/32 (8.7) 4.19 (106.4) 2.69 (68.3) 0.56 (14.2) 5/8-18NF
0.25 (6.4) 6 - 17/32(13.5) 5.38 (136.7) 3.62 (91.9) 0.50 (12.7) 1/4 NPT
0.38 (9.7) 6 - 11/16 (17.5) 7.00 (177.8) 4.12 (104.6) 1.13 (28.7) 1/2 NPT
0.50 1.00
1.00 2.00
1.00 2.38
1.00 2.63
1.38
(35.1)
1.38 4.00
(35.1) (101.6)
2.00 4.75
(50.8) (120.7)
2.00 6.00
(50.8) (152.4)
4.13 (104.9)
4.63 (117.6)
P-1100-WC 1/12
Wichita Clutch 800-964-3262 55
Air Tube Disc Clutches and Brakes
High Torque Clutches
Sizes 27-48
56 Wichita Clutch 800-964-3262
P-1100-WC 1/12
Air Tube Disc Clutches and Brakes
High Torque Clutches
Sizes 27-48
Dimensions: inches (mm)
Model BC
Size ATD- A Hole Circle Pilot DE FGH
HTC 127 32.75 31.500 27.375 / 27.378 31.00 10.34 (262.6) 3.50 (88.9) 8.50 (215.9)
HTC 227 (831.9) (800.10) (695.33 / 695.40) (787.4) 12.75 (323.9) 5.50 (139.7) 0.75 (19.1) 10.91 (277.1)
HTC 327 15.39 (390.9) 7.94 (201.7) 13.34 (338.8)
HTC 130 37.00 35.500 30.375 / 30.378 36.13 11.44 (290.6) 4.25 (108.0) 10.06 (255.5)
HTC 230 (939.8) (901.70) (771.53 / 771.60) (917.7) 14.75 (374.7) 7.50 (190.5) 0.75 (19.1) 13.38 (339.9)
HTC 330 16.25 (412.8) 9.50 (241.3) 15.13 (384.3)
HTC 136 43.50 42.000 36.375 / 36.378 41.50 11.88 (301.8) 4.13 (104.9) 1.13 (28.7) 11.63 (295.4)
HTC 236 (1,104.9) (1,066.80) (923.93 / 924.00) (1,054.1) 15.31 (388.9) 7.50 (190.5) 1.13 (28.7) 15.06 (382.5)
HTC 336 18.75 (476.3) 10.75 (273.1) 1.25 (31.8) 18.50 (469.9)
HTC 148
HTC 248
HTC 348
61.00 58.000 59.00
(1,525.0) (1,473.2) (1,498.6)
62.00 60.000 52.000 / 52.005 57.00
(1,574.8) (1,524.0) (1,320.8 / 1,320.9) (1,447.8)
61.00 58.000 59.00
1
(1,525.0) (1,473.2) (1,498.6)
26.44(671.6) 6.00 (152.4) 1.00 (25.4) 17.13 (435.1)
30.12 (765.0) 8.75(222.3) 1.75 (44.5) 20.81(528.6)
23.44 (595.4) 12.63 (320.8) 0.00 (0.0) 23.44 (595.4)
B
Dimensions: inches (mm)
Model L U
Size ATD- IJNo. - Size MN QSMin. Max.
HTC 127 1.50 (38.1) 10.50 (266.7) 1/2 NPT
HTC 227 1.63 (41.4) 0.25 (6.4) 16 - 21/32 (16.7) 16.25 (412.8) 10.50 (266.7) .75 (19.1) 1 NPT 6.50 (165.1)
HTC 327 1.63 (41.4) 9.00 (228.6) 1-1/2 -12NF
HTC 130 1.38 (35.1) 11.00 (279.4) 1/2 NPT
HTC 230 1.38 (35.1) 0.25 (6.4) 18 - 25/32 (19.8) 19.25 (489) 11.00 (279.4) .75 (19.1) 1/2 NPT 7.25 (184.2)
HTC 330 1.00 (25.4) 12.00 (304.8) 1-1/2 -12NF
HTC 136 12.00 (304.8)
HTC 236 1.50 (38.1) 0.25 (6.4) 18- 1-1/32 (26.2) 23.63 (600.2) 12.00 (304.8) 1.50 (38.1) 1/2 NPT 8.00 (203.2)
HTC 336 14.00 (355.6)
HTC 148 2.70 (68.6)
HTC 248 3.44 (87.4) 1.50 (38.1) (152.4)
HTC 34813.96 (100.6) 0.23 (5.8) 24 - 1-9/32 (32.5) 31.88 (809.8) 24.00 (609.6) 1.50 (38.1) 2-1/2 NPT
NOTE: For mounting, use socket head capscrews conforming to the ASTM-574-97a.
1
Less backplate.
(Consult factory for drawing before final layout.)
0.25 (6.4) 24 - 1-1/16 (27.0) 32.00 (812.8) 25.75 (654.1)
1.75 (44.5)
2 NPT
2.50
(63.5)
2.50
(63.5)
6.00
(152.4)
6.00
6.00
(152.4)
6.50 (165.1)
6.00 (152.4)
7.25 (184.2)
8.00 (203.2)
8.00 (203.2)
9.25 (235.0)
18.00 (457.2)
18.00 (457.2)
P-1100-WC 1/12
Wichita Clutch 800-964-3262 57
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