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ATRA-FLEX ® simplifyinstallation, and provide an economical, long-lasting, and trouble-free service. ATRA-FLEX ® couplings eliminate the need for lubrication, minimizing the hassle and cost of regular maintenance. In the event that a lockup occurs and an insert needs replacing, inserts can be replaced in minutes without moving any connected equipment or replacing any other components since there is no metal- to-metal contact. ATRA-FLEX ® couplings provide damping, resistance to most common chemicals and can withstand temperatures up to 350F. Additionally, a Nitrocarburized option is available as a couplings are engineered to significantly reduce downtime and maintenance costs, couplings provide damping, resistance to most common chemicals, and can withstand temperatures up to 350°F. Additionally, a nitrocarburized option is available as a cost-effective alternative to stainless steel, providing corrosion resistance and wear resistance while extending the life of the insert and offering superior reliability. ATRA-FLEX ® couplings are found in a wide range of applications and industries. The ATRA-FLEX ® MILLENIUM ® (M-Series) features a unique twist and lock ring, requiring no special tools or fasteners, making installation and maintenance simpler than ever. The ATRA-FLEX® T-Flex ® (T-Series) features a bolt on ring combining the stability of a compression style coupling with the safety of a shear coupling. HD inserts are available providing a 30% higher torque rating without changing any other coupling components. ATRA-FLEX ® cost of ownership. MILLENNIUM (M-Series) features a unique twist-and-lock ring, requiring no special tools or fasteners, making installation and maintenance simpler than ever. The ATRA-FLEX ® T-Flex couplings offer unparalleled reliability, reduced maintenance, and a lower
MADE IN THE USA MADE IN THE USA
2
CONTENT
T-FLEX ®
T - SERIES
04 05 06 07 08 09 10
11 12 13 14 15 16-17
Axial Slide Couplings Flywheel Couplings Brake Wheel/Brake Disc Couplings Bushing Options Technical Information/Alignment Tolerances Application Spotlight
T-Series Overview Advantages Standard Insert Ratings HD Insert Ratings Non-Spacer/Spacer Couplings Floating Shaft Couplings Limited End Float Couplings
MILLENIUM ®
M - SERIES
18 19 20 21 22 23
24 25 26 27 28 29
Floating Shaft Couplings Limited End Float Couplings Flywheel Couplings Bushing Options Technical Information/Alignment Tolerances Application Spotlight
M-Series Overview Advantages Insert Ratings Non-Spacer Couplings Spacer Couplings Drop Out Spacer Couplings
A - SERIES
30 31 32
33 34
A-Series Overview Insert Ratings Non-Spacer Couplings
Spacer Couplings Technical Information/Alignment Tolerances
ADDITIONAL FEATURES
36 37 38
39 40 41
OnyxShield ™ Couplings ProService ® Quick Selection Guide
Competitor Comparison Fluid Resistance Chart AGMA Service Factors
3
T-SERIES
T-FLEX ®
The T-Series uniquely transmits torque while accommodating misalignment without generating reactionary loads, increasing bearing life. Torque transmission capabilities up to 2,041,000 in.-lbs and shaft diameters to 20.00”. Coupling types range from close transmission capabilities up to 2,041,000 in-lbs and shaft diameters to 20.00 in. Coupling types range from close coupled to long span floating shaft couplings. The bolt on ring makes the T-Series a great fit for bidirectional and reversing applications. The T- Series has no metal- to-metal contact and in the event of a lock up, the insert will shear without damaging the connected equipment. Lubrication free and access to the insert without moving the connected equipment means replacing inserts with ease in minutes vs hours compared to lubricated coupling maintenance. ease in minutes versus hours compared to lubricated coupling maintenance.
Learn More at Learn more at www.ustsubaki.com/products/atra-flex/
TABLE OF CONTENTS
5 6 7
Advantages Standard Insert Ratings HD Inserts Ratings Non-Spacer/Spacer Couplings Floating Shaft Couplings Limited End Float Couplings 5 6 7
Advantages Standard Insert Ratings HD Insert Ratings Non-Spacer/Spacer Couplings Floating Shaft Couplings Limited End Float Couplings
8 9 10 11
8 9 10 11
Axial Slide Couplings Flywheel Couplings Brake Wheel/Brake Disc Couplings Bushing Options Technical Information/Alignment Tolerances Application Spotlight 12 13 14 15 16-17
Axial Slide Couplings Flywheel Couplings Brake Wheel/Brake Disc Couplings Bushing Options Technical Information/Alignment Tolerances Application Spotlight
12 13 14 15 16-17
4
ADVANTAGES
HOW IT WORKS
T-Series close coupled couplings consist of five parts. The ring hub, flex hub, insert, drive ring, and bolt kit. The ring hub and flex hub are installed on the shafts with the drive ring fitting over the flex hub. After coupling alignment, the insert is placed around the flex hub engaging the bottom lobes of the insert. The drive ring is then fitted over the insert engaging the top lobes of the insert. The drive ring is then fastened to the ring hub using high strength alloy steel socket head cap screws with high collar lock washers. The coupling will now transmit torque with silent, smooth, reliable, and minimal maintenance.
MANUFACTURING
T-Series is manufactured in the USA. Standard hubs and rings are machined from solid carbon steel rounds and tubing, maintaining tight tolerances which provides excellent coupling balance. Stainless steel is available for corrosive environments and food applications, or OnyxShield ™ couplings for a low cost corrosion resistant alternative which turns carbon steel black and helps prevent wear and corrosion. T-Series inserts are made from durable custom compounded polyurethane that offer resistance to almost every fluid found in industry today. Using T-Series ensures dependable, lubrication-free torque transmission for your rotational equipment and come with product/technical support from our experienced staff.
\ T-Series absorbs extreme torsional shock and vibration while accommodating angular, parallel, and axial misalignment without generating reactionary loads, which significantly increases bearing life. \ No lubrication is required. \ Standard inserts have a temperature range from -60° to 250° Fahrenheit with high temperature inserts available up to 350°F. \ The inserts are available in a range of hardness to meet most torsional stiffness and torque requirements, and offer very high resistance to chemicals. \ T-Series couplings are suitable for blind assembly, horizontal or vertical, reversing, and stop/start applications. \ The compact size-to-torque ratio with generous bore capacity allows proper sizing. \ Hubs are available for use with tapered bushings, Iock assemblies, shrink discs, finished bored and keyed, taper bored, and spline bored. \ OnyxShield ™ couplings are available for enhanced corrosion and wear resistance.
APPLICATION RANGE
Coupling sizes available to transmit torque loads from 60 in-lbs to 2.04 million in-lbs with shaft capacities ranging from .375 in to 20.00 in running from low rpm to 18,000 rpm. Coupling Types: close coupled, spacer, limited end float, slide, floating shaft, flywheel, brake wheel, brake disc, and made-to-order engineered couplings.
5
T-SERIES
STANDARD INSERT RATINGS
STANDARD INSERT
TORQUE RATINGS (LB-IN) MAX RPM’ S BASED ON INSERT TYPES
Orange insert is not recommended for high speed applications Refer to Quick Selection Guide on page 38 in this catalog for the appropriate service factors
INSERT TYPE
T2 T3 T4 T5 T6 T7 T8 T9 T10 T11 T12
T0 T1
YELLOW
General Use, High Dampening
Continuous (LB-IN)
1,000
1,600
3,800 6,000 12,000 35,000 64,700
720,000
950,000
120,000
202,000
540,000
304,000
Intermittent (LB-IN)
1,800
2,500
7,000 9,600 19,200
60,000
1,050,000
1,380,000
200 , 000 103,600 200,000
269,600
860,000
500,000
Use: General Applications (standard)
1.59 2.86
2.54 3.97
6.03 11.11
9.52 15.23
19.04 30.46
56 95
1,142 1,666
1,507 2,190
103 164
190 317
321 428
857 1,365
482 793
HP @ 100 RPM (SF1)
Max Temp F: 250 Min Temp F: -60 Durometer: 60D
12,000
10,000
8,000
6,000
4,500
3,600
1,200
1,000
Max RPM Unbalanced
1,750
2,800
2,300
1,300
1,450
18,000
16,000
14,000
12,000
10,500
8,500
1,750
1,400
Max RPM Balanced G2.5
2,400
5,500
3,600
1,750
2,100
T2 T3 T4 T5 T6 T7 T8 T9 T10 T11 T12
T0 T1
RED
High Temperature, High Dampening
Continuous (LB-IN)
850
807,500
1,360
3,230
5,100
10,200
29,750
54,995
102,000
171,700
258,400
459,000
612,000
1,173,000
Intermittent (LB-IN)
1,530
5,950
8,160
16,320
51,000
88,060
170,000
229,160
425,000
731,000
892,500
2,125
Use: High Temperature Running Applications Max Temp F: 350
1,281 1,862
2.16 3.37
5.13 9.44
8.09 12.95
16.18 25.89
48 81
88 139
162 269
273 364
410 674
728 1,160
971 1,416
1.35 2.43
HP @ 100 RPM (SF1)
Min Temp F: 20 Durometer: 90A
Max RPM Unbalanced
1,000
12,000
10,000
8,000
6,000
4,500
3,600
2,800
2,300
1,750
1,450
1,300
1,200
Max RPM Balanced G2.5
1,400
18,000
16,000
14,000
12,000
10,500
8,500
5,500
3,600
2,400
2,100
1,750
1,750
T2 T3 T4 T5 T6 T7 T8 T9 T10 T11 T12
T0 T1
ORANGE
High Torque, Medium Dampening
Continuous (LB-IN)
1,130
3,000
6,000
9,000
18,600
60,000
106,800
200,000
333,600
452,000
890,000
1,100,000
1,570,000
Intermittent (LB-IN)
2,260
4,000
9,000
12,600
24,000
80,000
170,900
300,000
444,900
603,000
1,400,000
1,650,000
2,280,000
Use: High Torque, Low Speed Applications
1.79 3.59
2,491 3,618
4.76 6.35
9.52 14.28
14.28 19.99
24.75 38.08
95 127
169 271
335 557
529 706
717 957
1,412 2,221
1,745 2,618
HP @ 100 RPM (SF1)
Max Temp F: 250 Min Temp F: -20 Durometer: 70D
Max RPM Unbalanced
10,000
8,000
6,000
4,500
3,600
2,800
2,300
1,750
1,450
1,300
1,200
12,000
1,000
Max RPM Balanced G2.5
16,000
14,000
12,000
10,500
8,500
5,500
3,600
2,400
2,100
1,750
1,750
18,000
1,400
T2 T3 T4 T5 T6 T7 T8 T9 T10 T11 T12
T0 T1
GREEN
Extra High Dampening
125,250
Continuous (LB-IN)
413
26,689
54,000
83,408
202,500
294,000
356,250
450
1,598
2,700
5,400
14,438
Intermittent (LB-IN)
206,250
743
42,735
75,000
111,210
322,500
412,500
517,500
900
3150
4,500
9,000
24,750
Use: Engine or Reciprocating with High
199 327
0.65 1.18
42 68
86 119
132 176
321 512
467 655
566 821
0.71 1.43
2.54 5.00
4.28 7.14
8.57 14.28
23 39
Vibratory Torques Max Temp F: 250 Min Temp F: -60 Durometer: 90A
HP @ 100 RPM (SF1)
Max RPM Unbalanced
12,000
2,800
2,300
1,750
1,450
1,300
1,200
1,000
10,000
8,000
6,000
4,500
3,600
Max RPM Balanced G2.5
18,000
5,500
3,600
2,400
2,100
1,750
1,750
1,400
16,000
14,000
12,000
10,500
8,500
6
HD INSERT RATINGS
HD INSERT
30% HIGHER TORQUE THAN THE STANDARD RATING
Orange insert is not recommended for high speed applications Refer to Quick Selection Guide on page 38 in this catalog for the appropriate service factors
INSERT TYPE
T2 T3 T4 T5 T6 T7 T8 T9 T10 T11 T12
T0 T1
YELLOW
Continuous (LB-IN)
1,300
General Use, High Dampening
2,080
4,940
7,800
15,600
45,500
84,110
156,000
262,600
395,200
702,000
936,000
1,235,000
2,340
Intermittent (LB-IN)
3,250
9,100
12,480
24,960
78,000
134,680
260,000
350,480
650,000
1,118,000
1,365,000
1,794,000
Use: General Applications (standard)
3.30 5.16
2.06 3.71
7.84 14.44
12.38 19.80
24.75 39.60
72.19 124
133 214
248 413
417 556
627 1,031
1,114 1,774
1,485 2,166
1,960 2,846
HP @ 100 RPM (SF1)
Max Temp F: 250 Min Temp F: -60 Durometer: 60D
Max RPM Unbalanced
8,000
12,000
10,000
6,000
4,500
3,600
2,800
2,300
1,750
1,450
1,300
1,200 1,000
Max RPM Balanced G2.5
14,000
18,000
16,000
12,000
10,500
8,500
5,500
3,600
2,400
2,100
1,750
1,750 1,400
T2 T3 T4 T5 T6 T7 T8 T9 T10 T11 T12
T0 T1
RED
Continuous (LB-IN)
596,700
335,920
High Temperature, High Dampening
71,493
38,675
13,260
1,768
4,200
1,105
223,210
6,630
132,600
795,600 1,049,750
950,300
2,763
7,735
552,500
1,989
221,000
66,300
297,908
21,216
114,478
10,608
Intermittent (LB-IN)
1,524,900
1,160,250
Use: High Temperature Running Applications Max Temp F: 350
354 473
113 182
2.81 4.38
6.66 12.27
1.75 3.16
61.36 105
21.04 33.66
10.52 16.83
947 1,508
533 877
1,262 1,841
1,666 2,420
210 351
HP @ 100 RPM (SF1)
Min Temp F: 20 Durometer: 90A
10,000
8,000
1,300
12,000
1,450
1,200 1,000
Max RPM Unbalanced
1,750
2,300
2,800
3,600
4,500
6,000
16,000
14,000
1,750
18,000
2,100
1,750
1,400
Max RPM Balanced G2.5
2,400
3,600
5,500
8,500
10,500
12,000
T2 T3 T4 T5 T6 T7 T8 T9 T10 T11 T12
T0 T1
ORANGE
7,800
11,700
High Torque, Medium Dampening
24,180
78,000
138,840
260,000
433,680
587,600
Continuous (LB-IN)
1,469
3,900
1,157,000
1,430,000
2,041,000
11,700
16,380
31,200
104,000
222,170
390,000
578,370
783,900
Intermittent (LB-IN)
2,938
5,200
1,820,000
2,145,000
2,964,000
Use: High Torque, Low Speed Applications
2.33 4.66
6.19 8.25
12.38 18.56
18.56 25.99
38.37 49.50
124 165
220 353
413 619
688 918
932 1,244
2,269 3,403
3,238 4,703
1,836 2,888
HP @ 100 RPM (SF1)
Max Temp F: 250 Min Temp F: -20 Durometer: 70D
8,000
6,000
4,500
3,600
2,800
2,300
1,750
1,450
1,300
1,200
1,000
Max RPM Unbalanced
10,000
12,000
14,000
12,000
Max RPM Balanced G2.5
10,500
8,500
5,500
3,600
2,400
2,100
1,750
1,750
1,400
16,000
18,000
T2 T3 T4 T5 T6 T7 T8 T9 T10 T11 T12
T0 T1
GREEN
Extra High Dampening
Continuous (LB-IN)
2,077
3,510
7,020
18,769
34,695
70,200
108,423
162,825
263,250
382,200
463,125
537
585
Intermittent (LB-IN)
4,095
5,850
11,700
32,175
55,555
97,500
144,573
268,125
419,250
536,250
672,750
966
1,170
Use: Engine or Reciprocating with High
418 665
606 851
735 1,067
3.30 6.50
5.57 9.28
11.14 18.56
29.78 51.10
55.10 88.10
111 155
172 229
258 425
0.85 1.53
0.93 1.86
Vibratory Torques Max Temp F: 250 Min Temp F: -60 Durometer: 90A
HP @ 100 RPM (SF1)
8,000
6,000
4,500
3,600
2,800
2,300
1,750
1,450
1,300
1,200
1,000
Max RPM Unbalanced
12,000
10,000
Max RPM Balanced G2.5
18,000
14,000
12,000
16,000
10,500
8,500
5,500
3,600
2,400
2,100
1,750
1,750
1,400
7
T-SERIES
NON-SPACER/SPACER COUPLINGS
G
FIGURE 3 Heavy Duty Hub
FIGURE 2 Spacer
L5
L3
FIGURE 1 Non-Spacer
SL
L6
L4
L5
L5
HD
MB HD D1
HD
D4 MB RH
D2 D3 MB FH
D1
MBHD: Use the Heady Duty Ring Hub for shafts larger than MBRH. RHHD must be specified when ordering RSB for the larger shafts. Available for use with spacer and non-spacer couplings.
DR
DRIVE RING
SIZE T0
T1
T2
T3
T4
T5
T6
T7
T8
T9
T10 T11
T12
D1 G
10.180
12.200
14.200
16.200
22.275
2.850
3.600
18.200
20.250
4.600
8.180
6.680
5.100
11.900
13.600
14.625
18.020
28.500
2.950
3.960
19.950
23.250
4.800
9.765
7.800
6.290
MBFH MBRH MBHD RSB E
5.500
6.250
7.125
9.000
12.875
1.375
1.750
10.000
11.250
2.250
4.500
3.375
2.500
6.250
7.250
7.625
10.375
15.000
1.625
2.250
12.000
12.500
2.500
5.250
3.875
3.375
8.250
9.250
10.625
13.250
20.000
1.875
2.750
15.375
17.500
2.875
6.625
5.250
4.500
1.500
1.750
2.400
2.900
3.900
.300
.430
3.700
3.900
.500
1.000
.950
.625
.180
.200
.200
.200
.275
.100
.100
.200
.250
.100
.180
.180
.100
D2 D3 D4 HD L1
7.875
9.250
10.167
12.775
18.500
1.995
2.585
14.625
16.000
3.200
6.500
4.900
4.000
8.515
10.065
10.435
13.780
20.988
2.050
2.820
15.710
17.875
3.500
7.350
5.650
4.500
8.875
10.750
11.375
13.875
22.875
2.470
3.200
16.500
17.500
3.625
7.500
5.625
5.000
11.375
13.250
14.375
17.670
27.000
2.850
3.840
19.700
23.000
4.650
9.500
7.500
6.125
5.000
6.000
7.000
8.000
11.000
1.375
1.750
9.000
10.000
2.250
4.000
3.250
2.500
L2 L3 L4 L5 L6 DRC SS WEIGHT
5.000
6.000
7.000
8.000
11.000
1.375
1.750
9.000
10.000
2.250
4.000
3.250
2.500
2.475
2.485
3.300
3.875
4.900
.650
.675
4.140
4.250
1.175
1.275
1.100
1.100
3.940
4.815
5.690
6.440
8.440
.980
1.293
6.875
7.900
1.730
3.065
2.565
1.825
1.000
1.125
1.250
1.500
2.500
.375
.4375
2.000
2.000
.500
.875
.625
.625
2.715
3.795
3.900
4.385
6.425
.885
1.165
5.185
6.100
1.165
2.875
2.375
1.500
4.865
6.815
7.140
8.010
11.775
1.500
2.075
9.570
11.100
2.200
5.175
4.250
2.700
3/4
1-8
1-8
1-8
1-8
5/16
5/16
1-8
1-8
3/8
5/8
1/2
3/8
180
285
365
600
1,750
5
10
950
1,250
15
105
50
25
STANDARD SPACER LENGTH
SIZE 3.0 3.5 3.75 4.0 5.0 5.5 6.0 7.0 7.5 9.0 9.5 9.75 10.0 12.0
MBFH - Max Bore Flex Hub MBRH - Max Bore Ring Hub MBHD - Max Bore Ring Hub HD HD - Ring Hub Small Diameter increased for
RSB - Rough Stock Bore (minimum re-bore)
T1 T0 T2 T3 T4 T5
X X X X
X X X X
X X X X
DRC - Drive Ring Clearance = Minimum shaft clearance required to facilitate insert install and removal without moving equipment or hubs WEIGHT - Coupling Weight (lbs) is for non-spacer couplings with RSB hubs
X X
X
X X
X X
X X X
X X X X X
X X X
X X X
larger bore capacity SS - Set Screw Size
X X X
X X X X
Note: Custom lengths available. Size T6 through T12 spacers are made to order. Special inventory arrangements can be made with the end user if needed. Consult factory for min/max spacer lengths.
8
COUPLINGS ARE MADE TO ORDER
FLOATING SHAFT COUPLINGS
G
L5
L3
E
L6
FIGURE 4 Spacer
D1
L1
L2
L4
D3
D2
SD
HD
D4 MB RH
SL
DRIVE RING FLEX HUB
RING HUB
DBSE
SIZE T0
T1
T2
T3
T4
T5
T6
T7
T8
T9
T10 T11
T12
D1 G
10.180
12.200
14.200
16.200
22.275
2.850
3.600
18.200
20.250
4.600
8.180
6.680
5.100
11.900
13.600
14.625
18.020
28.500
2.950
3.960
19.950
23.250
4.800
9.765
7.800
6.290
MBFH MBRH MBHD RSB E
5.500
6.250
7.125
9.000
12.875
1.375
1.750
10.000
11.250
2.250
4.500
3.375
2.500
6.250
7.250
7.625
10.375
15.000
1.625
2.250
12.000
12.500
2.500
5.250
3.875
3.375
8.250
9.250
10.625
13.250
20.000
1.875
2.750
15.375
17.500
2.875
6.625
5.250
4.500
1.500
1.750
2.400
2.900
3.900
.300
.430
3.700
3.900
.500
1.000
.950
.625
.180
.200
.200
.200
.275
.100
.100
.200
.250
.100
.180
.180
.100
D2 D3 D4 HD L1
7.875
9.250
10.167
12.775
18.500
1.995
2.585
14.625
16.000
3.200
6.500
4.900
4.000
8.515
10.065
10.435
13.780
20.988
2.050
2.820
15.710
17.875
3.500
7.350
5.650
4.500
8.875
10.750
11.375
13.875
22.875
2.470
3.200
16.500
17.500
3.625
7.500
5.625
5.000
11.375
13.250
14.375
17.670
27.000
2.850
3.840
19.700
23.000
4.650
9.500
7.500
6.125
5.000
6.000
7.000
8.000
11.000
1.375
1.750
9.000
10.000
2.250
4.000
3.250
2.500
L2 L3 L4 L5 L6 DRC SD
5.000
6.000
7.000
8.000
11.000
1.375
1.750
9.000
10.000
2.250
4.000
3.250
2.500
2.475
2.485
3.300
3.875
4.900
.650
.675
4.140
4.250
1.175
1.275
1.100
1.100
3.940
4.815
5.690
6.440
8.440
.980
1.293
6.875
7.900
1.730
3.065
2.565
1.825
1.000
1.125
1.250
1.500
2.500
.375
.4375
2.000
2.000
.500
.875
.625
.625
2.715
3.795
3.900
4.385
6.425
.885
1.165
5.185
6.100
1.165
2.875
2.375
1.500
4.865
6.815
7.140
8.010
11.775
1.500
2.075
9.570
11.100
2.200
5.175
4.250
2.700
5.250
6.000
7.000
9.000
12.000
1.250
1.500
10.000
11.000
2.000
4.250
3.250
2.500
Note: Consult factory for floating shaft material alternatives such as stainless steel or composite tubing.
MBFH - Max Bore Flex Hub MBRH - Max Bore Ring Hub MBHD - Max Bore Ring Hub HD HD - Ring Hub Small Diameter increased for larger bore capacity MBFH - Max Bore Flex Hub MBRH - Max Bore Ring Hub MBHD - Max Bore Ring Hub HD HD - Ring Hub Small Diameter increased for larger bore capacity
DRC - Drive Ring Clearance = Minimum shaft clearance regquired to facilitate insert install and removal without moving equipment or hubs RSB - Rough Stock Bore (minimum re-bore) DRC - Drive Ring Clearance = Minimum shaft clearance required to facilitate insert install and removal without moving equipment or hubs
9
T-SERIES
LIM IT ED END FLO AT C OUPLING S LIMITED END FLOAT COUPLINGS
G
FIGURE 5 Limited End Float
FIGURE 6 Limited End Float
L5
L3
L6
L4
LEF GROOVE
HD
MB RH D4
D2 MB FH
D3 D1
DRIVE RING
SIZE T0
T1
T2
T3
T4
T5
T6
T7
T8
T9
T10 T11
T12
D1 G
10.180
12.200
14.200
16.200
22.275
2.850
3.600
18.200
20.250
4.600
8.180
6.680
5.100
11.900
13.600
14.625
18.020
28.500
2.950
3.960
19.950
23.250
4.800
9.765
7.800
6.290
MBFH MBRH MBHD RSB E
5.500
6.250
7.125
9.000
12.875
1.375
1.750
10.000
11.250
2.250
4.500
3.375
2.500
6.250
7.250
7.625
10.375
15.000
1.625
2.250
12.000
12.500
2.500
5.250
3.875
3.375
8.250
9.250
10.625
13.250
20.000
1.875
2.750
15.375
17.500
2.875
6.625
5.250
4.500
1.500
1.750
2.400
2.900
3.900
.300
.430
3.700
3.900
.500
1.000
.950
.625
.180
.200
.200
.200
.275
.100
.100
.200
.250
.100
.180
.180
.100
D2 D3 D4 HD L1
7.875
9.250
10.167
12.775
18.500
1.995
2.585
14.625
16.000
3.200
6.500
4.900
4.000
8.515
10.065
10.435
13.780
20.988
2.050
2.820
15.710
17.875
3.500
7.350
5.650
4.500
8.875
10.750
11.375
13.875
22.875
2.470
3.200
16.500
17.500
3.625
7.500
5.625
5.000
11.375
13.250
14.375
17.670
27.000
2.850
3.840
19.700
23.000
4.650
9.500
7.500
6.125
5.000
6.000
7.000
8.000
11.000
1.375
1.750
9.000
10.000
2.250
4.000
3.250
2.500
L2 L3 L4 L5 L6 DRC SS
5.000
6.000
7.000
8.000
11.000
1.375
1.750
9.000
10.000
2.250
4.000
3.250
2.500
2.475
2.485
3.300
3.875
4.900
.650
.675
4.140
4.900
1.175
1.275
1.100
1.100
3.940
4.815
5.690
6.440
8.440
.980
1.293
6.875
7.900
1.730
3.065
2.565
1.825
1.000
1.125
1.250
1.500
2.500
.375
.4375
2.000
2.000
.500
.875
.625
.625
2.715
3.795
3.900
4.385
6.425
.885
1.165
5.185
6.100
1.165
2.875
2.375
1.500
4.865
6.815
7.140
8.010
11.775
1.500
2.075
9.570
11.100
2.200
5.175
4.250
2.700
3/4
1-8
1-8
1-8
1-8
5/16
5/16
1-8
1-8
3/8
5/8
1/2
3/8
LBS
5
10
15
25
50
105
180
285
365
600
950
1,250
1,750
Note: Limited end float couplings can be special ordered for end float +/- increase or decrease and accommodate greater angular misalignment. They can be combined with axial slide couplings to be used as stops for +/- travel. Consult factory for special design needs.
PARALLEL P (TIR)
ANGULAR A
SIZE T-FLEX ® LEF
END FLOAT +/-
T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 T11 T12
.040 .040 .040 .060 .060 .060 .060 .060 .080 .080 .100 .100
1 °
.050 / .035
1 ° 1 °
.050 / .035 .050 / .035 .050 / .035 .050 / .035 .050 / .035 .050 / .035 .050 / .035 .050 / .035 .050 / .035 .050 / .035 .050 / .035
.5 °
.5 ° .5 ° .5 ° .5 ° .5 ° .5 ° .5 ° .5 °
T-Series standard couplings are designed to allow free axial movement of driver and driven shafts. Limited end float couplings should be specified for all applications requiring limited or controlled axial end float such as sleeve/babbit bearing motors, fans, blowers, etc. Consult factory for questionable applications. Limited end float flex hub and inserts are used with standard ring hubs and drive rings. Available for use with spacer and non-spacer couplings.
10
COUPLINGS ARE MADE TO ORDER
A X IA L S LIDE C OUPLING S AXIAL SLIDE COUPLINGS
SL
FIGURE 7 Axial Long Slide
L5
L6
L5
SL
SPECIFY +/- E E+ E-
D4 MB RH
MB FH
D2
D3 D1
DR
L5
L4
L6
FIGURE 8 Axial Medium Slide
HD MB RH
MB FH D2 D3 D1
E E+ E- SPECIFY +/-
DR
SIZE T0
T1
T2
T3
T4
T5
T6
T7
T8
T9
T10 T11
T12
D1 MBFH MBRH MBHD RSB E MIN
11.900
13.600
14.625
18.020
28.500
2.950
3.960
19.950
23.250
4.800
9.765
7.800
6.290
5.500
6.250
7.125
9.000
12.875
1.375
1.750
10.000
11.250
2.250
4.500
3.375
2.500
6.250
7.250
7.625
10.375
15.000
1.625
2.250
12.000
12.500
2.500
5.250
3.875
3.375
8.250
9.250
10.625
13.250
20.000
1.875
2.750
15.375
17.500
2.875
6.625
5.250
4.500
1.500
1.750
2.400
2.900
3.900
.300
.430
3.700
3.900
.500
1.000
.950
.625
.180
.200
.200
.200
.275
.100
.100
.200
.250
.100
.100
.180
.180
D2 D3 D4 HD L2 L4 L5 L6
7.875
9.250
10.167
12.775
18.500
1.995
2.585
14.625
16.000
3.200
6.500
4.900
4.000
8.515
10.065
10.435
13.780
20.988
2.050
2.820
15.710
17.875
3.500
7.350
5.650
4.500
8.875
10.750
11.375
13.875
22.875
2.470
3.200
15.800
17.500
3.625
7.500
5.625
5.000
11.375
13.250
14.375
17.670
27.000
2.850
3.840
19.700
23.000
4.650
9.500
7.500
6.125
5.000
6.000
7.000
8.000
11.000
1.375
1.750
9.000
10.000
2.250
4.000
3.250
2.500
3.940
4.815
5.690
6.440
8.440
.980
1.293
6.875
7.900
1.730
3.065
2.565
1.825
1.000
1.125
1.250
1.500
2.500
.375
.4375
2.000
2.000
.500
.875
.625
.625
2.715
3.795
3.900
4.385
6.425
.885
1.165
5.185
6.100
1.165
2.875
2.375
1.500
11
COUPLINGS ARE MADE TO ORDER
T-SERIES
FLYWHEEL COUPLINGS
G
L5
L3
FIGURE 9 Flywheel
L6
BC
MB FH D2 D3 D1
D5
BC
D4
D5
CH
E
L4
SIZE T0
T1
T2
T3
T4
T5
T6
T7
T8
T9
T10 T11
T12
D1 G MBFH RSB E
6.230
7.275
8.500
9.760
13.835
1.860
2.300
11.325
12.325
2.865
5.115
4.115
3.250
11.900
13.600
14.625
18.020
28.500
2.950
3.960
19.950
23.250
4.800
9.765
7.800
6.290
5.500
6.250
7.125
9.000
12.000
1.375
1.750
10.000
11.250
2.250
4.500
3.375
2.500
1.500
1.750
2.400
2.900
3.900
.300
.430
3.700
3.900
.500
1.000
.950
.625
.180
.200
.200
.200
.275
.100
.100
.200
.250
.100
.180
.180
.100
D2 D3 L1 L4 L5 L6
7.875
9.250
10.167
12.775
1.995
18.500
2.585
14.625
16.000
3.200
6.500
4.900
4.000
8.515
10.065
10.435
13.780
20.988
2.050
2.820
15.710
17.875
3.500
7.350
5.650
4.500
5.000
6.000
7.000
8.000
11.000
1.375
1.750
9.000
10.000
2.250
4.000
3.250
2.500
3.940
4.815
5.690
6.440
8.440
.980
1.293
6.875
7.900
1.730
3.065
2.565
1.825
1.000
1.125
1.250
1.500
2.500
.375
.4375
2.000
2.000
.500
.875
.625
.625
2.715
3.795
3.900
4.385
6.425
.885
1.165
5.185
6.100
1.165
2.875
2.375
1.500
SAE 6.5
8
10 11.5 14 16
18 21
24
D5
13.875 13.125 .375 .3906 8
20.375 19.250 .625 .5156 8
22.500 21.375 .750 .6406 6
26.500 25.250 .750 .6406 12
28.875 27.250 .750 .7656 12
8.500 9.500 10.375 12.375
18.375 17.250 .375 .5156 8
BC
7.875 8.750 9.625 11.625
L4
.3125 .3125 .375 .375
CH
.3281
.3281
.3906 .3906
CHX
6
8
6
8
Note:
spacer bodies can be added.
12
COUPLINGS ARE MADE TO ORDER
BRAKE WHEEL / BRAKE DISC COUPLINGS
SIZE WHEEL BXF
F1
F2
L7
T DISC BXF A
6 x 3.125 6 x 3.75
1.625 2.25
.645 .645
.25 .25
8 x .25 10 x .25
T2
1.5
.595
8 x .25 10 x .25 12 x .25
.375 .375 .375
1.0 1.75 2.0
.865 .865 .865 .875 .875 .875 .875 1.185 1.185 1.185 1.185 1.185 1.25
8 x 2.5 8 x 3.25 8 x 3.5 10 x 3.75 10 x 4.25 10 x 5.5 11 x 5 13 x 5.5 13 x 5.75 14 x 6.5 16 x 6.375 16 x 8.25 17 x 6.5 14 x 6.5 16 x 6.375 16 x 8.25 17 x 6.5 19 x 8.25 17 x 6.5 19 x 8.25 19 x 8.75 20 x 8.25 23 x 8.25 23 x 9.25 19 x 8.25 19 x 8.75 20 x 8.25 23 x 8.25 23 x 9.25 24 x 10 25 x 10.25 23 x 8.25 23 x 9.25 24 x 10 25 x 10.25 26 x 10.25 28 x 11.25
T3
.675
1.5
10 x .25 10 x .25
1.0 1.0
.375 .375 .375
T4
.685
2.25
16 x .5 18 x .5
3.25 2.75
.5 .5 .5 .5 .5 .625 .5 .5 .5 .625 .75 .625 .750 .750 .750 .750 .750 .750 .750 .750 .750 .750 .875 1.0 .750 .750 .875 1.0 1.0 1.25
2.0 2.25 3.0 2.875 4.75 3.0 3.0 2.875 4.75 3.0 4.75
FIGURE 10 Brake Wheel
F
12 x .25 16 x .5 18 x .5 20 x .5 22 x .5 16 x .5 18 x .5 20 x .5 22 x .5 24 x .5 18 x .5 20 x .5 22 x .5 24 x .5 30 x .5
F1
F2
T5
.935
3.5
L7
T
L4
L3
T
L6
1.3 1.3 1.3
T6
1.05
3.5
1.365 1.425
B D4 MB RH
MB FH D2
D3 D1
1.495 1.56 1.56 1.56 1.56 1.56 1.685 1.685 1.685 1.685 1.685
2.5 4.25 4.75 4.25 4.25 5.25 4.25 4.75 4.25 4.25 5.25 6.0 6.25 3.25 4.25 5.0 5.25 5.25 6.25
T7
1.185
4.0
DR
BRAKEWHEEL
G
20 x .5 22 x .5 24 x .5 30 x .5 36 x .625
T8
1.31
4.0
1.75 1.81
1.935 1.935 2.0 2.06 2.06 2.185
24 x .5 30 x .5
T9
1.560
5.0
36 x .625 40 x .625
FIGURE 11 Brake Disk
SIZE T2
T3
T4
T5
T6
T7
T8
T9
G
G D1
16.200 18.020 9.000 10.375 .200
4.600 4.800 2.250 2.500 .100
5.100 6.290 2.500 3.375 .100
6.680 7.800 3.375 3.875 .180
8.180 9.765 4.500 5.250 .180
10.180 11.900 5.500 6.250 .180
12.200 13.600 6.250 7.250 .200
14.200 14.625
F
A
L3
MBFH MBRH E
L4
L6
7.125 7.625 .200
D2
12.775
3.200
4.000
4.900
6.500
7.875
9.250
10.167
D1
B D4 MB RH
MB FH D2 D3
D3 D4 L1 L2 L4 L3
13.780 13.875 8.000 8.000 4.385 8.010 1-8 6.440 3.875
3.500 3.625 2.250 2.250 1.730 1.200 1.165 2.500 3/8
4.500 5.000 2.500 2.500 1.825 1.125 1.500 2.700 3/8
5.650 5.625 3.250 3.250 2.375 4.250 1/2 2.565 1.115
7.350 7.500 4.000 4.000 3.065 1.325 2.875 5.175 5/8
8.515 8.875 5.000 5.000 3.940 2.475 2.715 4.865 3/4
10.065 10.750 6.000 6.000 3.795 6.815 1-8 4.925 2.485
10.435 11.375 7.000 7.000 5.690 3.250 3.900 7.140 1-8
DR
L6 DRC SS
BRAKE DISK
13
T-SERIES
BUSHING OPTIONS
QD BUSHING
GB
SIZE QD MB GB G D1
D3 D4 E BL
G
T0 T1 T2 T3 T4 T5 T6 T7 T8 T9
2.470 3.200 3.625 5.000 5.625 7.500 8.875 10.750 11.375 13.875
2.950
1.250 1.625 2.000 2.9375 4.000 4.500 5.500 6.000 7.000 2.625
1.000 1.312 1.812 1.937 2.062 3.750 4.625 6.750 8.125 9.375
.100 .100 .100 .100 .180 .180 .180 .200 .200 .200
2.050 2.820 3.500 4.500 5.650 7.350 8.515 10.065 10.435 13.780
1.550 2.725 2.725 4.165 3.830 5.805 7.180 11.200 13.450 15.825
2.410 4.715 3.950 7.125 6.180 8.560
JA SH SD SK SF
4.800 6.290 7.800 9.765 11.900 13.600 14.625 18.020 3.960
F J M N P
D4
D3 D1
MB
10.200 14.520 19.450 20.589
FIGURE 12 QD BUSHING
Note: Ring hubs may accommodate +1 size larger bushing than flex hub.
TAPER LOCK BUSHING EXTERNAL
G
SIZE TL-EXT MB G D1
D3 D4 E
BL
T0 T1 T2 T3 T4 T5 T6 T7 T8 T9
1008 1108 1615 2012 2525 3020 4040 5050 7060 5050
.875 .875
.100 .100 .100 .100 .180 .180 .180 .200 .200 .200
2.050 2.820 3.500 4.500 5.650 7.350 8.515 10.065 10.435 13.780
3.960 2.950 4.800 6.290 7.800 9.765 11.900 13.600 14.625 18.020
2.350 2.260 3.350 2.850 5.180 5.530 8.430 14.215 10.700 16.825
1.000 1.125 1.625 2.000 2.500 3.000 4.000 5.000 5.000 7.000
2.470 3.200 3.625 5.000 5.625 7.500 8.875 10.750 11.375 13.875
1.500 1.250 2.500 2.000 4.000 5.000 5.000 6.000
D4 MB
D3 D1
FIGURE 13 TAPER LOCK EXTERNAL BUSHING
Note: Ring hubs may accommodate +1 size larger bushing than flex hub.
G
TAPER LOCK BUSHING INTERNAL
SIZE TL-INT MB G D1
D3 D4 E
BL
T1 T2 T3 T4 T5 T6 T7 T8 T9
.875 1.000 1.000 1.250 2.500 3.500 4.000 4.500 5.000
.100 .100 .100 .180 .180 .180 .200 .200 .200
3.200 3.625 5.000 5.625 7.500 8.875 10.750 11.375 13.875
2.820 3.500 4.500 5.650 7.350 8.515 10.065 10.435 13.780
4.800 3.960 6.290 7.800 9.765 11.900 13.600 14.625 18.020
2.180 2.300 3.350 3.705 5.530 7.430 9.200 9.450 10.700
1.125 1.437 1.687 2.125 2.500 3.937 4.437 4.937 5.000
1108 1310 1610 2012 2525 3535 4040 4545 5050
MB
D4
D3 D1
FIGURE 14 TAPER LOCK INTERNAL BUSHING
Note: Ring hubs may accommodate +1 size larger bushing than flex hub.
Note: Coupling torque may be de-rated due to the bushing’s maximum torque capacity. Consult the bushing manufacturer for specifications.
14
TECHNICAL INFORMATION / ALIGNMENT TOLERANCES
ALIGNMENT TOLERANCES
T0
T1
T2
T3
T4
T5
T6
T7
T8
T9
T10 T11
T12
SIZE
.200 .350 .070 2.120 .050 .100
.180 .225 .050
.200 .250 .070 1.767 .040 .080
.200 .250 .070
.200 .250 .070 2.120 .045 .090
.250 .350 .070 2.687
.100 .100 .020 .450 .020 .040 2 °
.100 .125 .030
.100 .175 .040 .895 .030 .060 2 °
.180 .175 .040
.180 .225 .050 1.207 .040 .080 1 ° 9.765 7.350 1/2 1,900
.275 .350 .100 3.756
.100 .125 .030 .650 .030 .060 2 °
GAP E
.570
1.075
.040 .080 1 ° 11.900 8.515 5/8 3,500 1.692
2.095
PARALLEL O
.040 .080
.075 .150 1 ° 23.250 17.875 15,500 1 - 1/8
.030 .060 2 °
.040 .080 1 °
.075 .150 1 °
TIR
1 °
1 °
1 °
1 °
3.960
2.950 2.050 6-32* 31
4.800 3.500
6.290 4.500 5/16 415
7.800 5.650 1/2 1,900
28.500 20.988 1 - 1/2 46,500
19.950 15.710
13.600 10.065 5/8 3,500
14.625 10.435 3/4 6,200
18.020 13.780 7/8 8,500
2.820 10-32 85
1
1/4 210
12,300
TT
TT - Tightening Torque is for a dry black alloy steel fastener; reference the I&M for the stainless steel fastener tightening torque. * UNC Thread
60.00°
KW
Gap E @ 12:00
DRIVE RING
KH
D3
BD
BC
Gap E @ 4:00
Gap E @ 8:00
(OPTIONAL) PULLER HOLES (PH)
RING HUB
O
All splined and taper bores are available with extra charge & lead time Factory dynamic balancing is available with extra charge & lead time
D1
D3
Puller holes are available with extra charge & lead time
FLEX HUB
TH
FLEX HUB PULLER HOLES (OPTIONAL)
SIZE
T1
T2
T3
T4
T5
T6
T7
T8
T9
T10 T11
T12
PH
1/4
1/4
5/16
1/2
1/2
5/8
5/8
3/4
7/8
1
1 - 1/8
1 - 1/2
2.285
2.875
3.500
4.525
5.925
7.000
8.150
8.500
11.400
13.350
14.650
16.494
Note: The standard ring hub bolt pattern can be used as puller holes.
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T-SERIES
APPLICATION SPOTLIGHT
Customers turn to ATRA-FLEX ® to keep their operations in motion. The ATRA-FLEX ® T-Series is used in a wide range of industries and applications. When customers need to connect equipment that spans a long distance, they rely on ATRA-FLEX ® floating shaft couplings. Applications include fans, compressors, vertical pumps, cooling towers, paper machines, mine ventilation, dredging equipment, and others. Each floating shaft is designed specifically for the application, increasing reliability and reducing downtime. OnyxShield ™ floating shaft couplings can provide customers with a corrosion resistant solution that will reduce wear and increase the insert life. T-Series floating shaft couplings are lubrication free and offer a reduced cost of ownership and minimal maintenance. With the T-Series, inserts can be inspected or replaced in minutes without having to move any equipment.
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Above: T11 composite floating shaft coupling with OnyxShield ™ hubs in a dredging application. Right: T5 steel floating shaft coupling with OnyxShield ™ hubs in a pulp and paper application.
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T-FLEX ® MILLENNIUM ® M-SERIES T-SERIES
The T-Series uniquely transmits torque while accommodating misalignment without generating reactionary loads, increasing bearing life. Torque transmission capabilities up to 2,041,000 in.-lbs and shaft diameters to 20.00”. Coupling types range from close The ATRA-FLEX ® M-Series flexible couplings are designed to accommodate a wide range of industrial applications, offering a torque capacity up to 3,610,000 in-lbs and can handle shaft diameters up to 16 inches. These couplings feature a unique twist-and-lock ring that eliminates the need for fasteners or special tools, facilitating easy installation and maintenance. The rugged polyurethane insert effectively absorbs torsional and reversing applications. The T- Series has no metal- to-metal contact and in the event of a lock up, the insert will shear without damaging the connected equipment. Lubrication free and access to the insert without moving the connected equipment means replacing inserts with ease in minutes vs hours compared to lubricated coupling maintenance. shock and vibration while accommodating angular, parallel, and axial misalignment, thereby enhancing equipment longevity. Additionally, the couplings operate lubrication free, have no metal-to-metal contact and can withstand temperatures ranging from -60°F to 350°F. For applications requiring corrosion resistance, options include stainless steel components or a cost-effective nitrocarburized process known as OnyxShield ™ , as an alternative. Learn More at
Learn more at www.ustsubaki.com/products/atra-flex/m-series/
TABLE OF CONTENTS
TABLE OF CONTENTS
5 6 7
Advantages Standard Insert Ratings HD Inserts Ratings Non-Spacer/Spacer Couplings Floating Shaft Couplings Limited End Float Couplings M-Series Overview Advantages Insert Ratings Non-Spacer Couplings Spacer Couplings 18 19 20 21
8 9 10 11
22 23 24 25 26 27 28 29
Drop Out Spacer Couplings Floating Shaft Couplings Limited End Float Couplings Flywheel Couplings Bushing Options Technical Information/Alignment Tolerances Application Spotlight
Axial Slide Couplings Flywheel Couplings Brake Wheel/Brake Disc Couplings Bushing Options Technical Information/Alignment Tolerances Application Spotlight
12 13 14 15 16-17
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