TLC

TLC
T Series Couplings

A – Stainless Steel,
Flexible Membranes
B – Overload Collars
C – Cartridge
Transmission Unit
D – Anti-Fly Feature
E – Anti-Corrosion A
Treatment
F – Hubs with
Puller Holes
G – Externally
Wrenched Bolts B

H – Large Shaft G
Diameter
Accommodated

E
H

Product Description Design Features

®
Metastream T Series Couplings, pioneered by John Crane ■ Excellent power-to-weight ratio.
Flexibox®, incorporate a scalloped, stainless steel, flexible ■ High misalignment capability.
membrane design. This design gives the most flexible
solution for high torque and misalignment. ■ Low imposed forces on machinery leading to:
—
reduced machinery vibration
■ Easy to fit. —
maximized bearing life.
■ Meets API 610 8th edition. Can be supplied to meet ■ Stainless steel, flexible membranes for maximum life.
API 671.
■ Cartridge transmission unit eases assembly and gives
■ Intrinsic balance meets AGMA class 9 through
repeatable balance.
size 9017.
■ Overload collars are fitted to protect the flexible
■ Ideally suited for electric motors and turbine drives in
membranes in case of a more severe torsional
critical process industry, marine, and power generation
overload.
applications.
■ Anti-fly retention of the spacer in the unlikely event
of membrane failure.
■ Puller holes incorporated into hubs as standard.
■ Unique modular design allows correctly rated coupling
to be installed, even on large diameter shafts.
■ Special thread form ensures hub bolts have all
metal self-locking feature for security. This allows
the bolts to be used repeatedly without compromising
their integrity.
Metastream and Flexibox are registered trademarks of John Crane. ■ Compression and jacking bolt features allow for easy
installation and removal of spacer assembly as standard.
 TLC
TLC
T Series Couplings

TLC Technical Data

Weight, Inertia, and Stiffness of Transmission Unit
Max. Peak Weight Weight/ Inertia Inertia/ Stiff. @ Stiff./Extra
Rating Continuous Overload Max. rpm @ Min. Extra @ Min. Extra Min. DBSE DBSE x106
Coupling HP/100 Torque Torque Standard Large DBSE DBSE DBSE DBSE x106 lb-in/rad lb-in/rad/in
Size rpm lb-in lb-in Hub Hub lb lb/in lb-in2 lb-in2/in *K tu *K s
0300 40 25,350 50,700 15,300 11,300 18.5 0.92 87 1.9 3.68 77.43
0500 67 42,250 84,500 12,800 10,100 29.0 1.23 198 4.1 5.93 165.9
0750 101 63,400 126,800 11,300 9,000 41.7 1.56 367 7.4 8.47 296.1
1050 141 88,750 177,500 10,100 8,200 58.9 1.93 663 11.8 13.9 473.4
1500 201 126,750 253,500 9,000 7,400 79.6 2.38 1113 18.4 28.0 741.4
2000 268 169,050 338,100 8,200 6,600 110.4 2.75 1960 26.9 36.2 1083
2600 349 219,750 439,500 7,400 6,600 142.3 3.40 2956 37.6 46.7 1513
3350 449 283,150 566,300 6,600 5,400 160.7 3.85 3837 54.4 60.8 2186
4250 570 359,250 718,500 6,000 5,400 210.2 4.55 5858 73.8 77.2 2967
6010 806 507,900 1,015,800 5,400 4,800 293.9 5.69 10508 120 109 4821
8500 1140 718,400 1,436,800 4,800 4,100 426.5 7.46 18980 189 154 7610
9013 1743 1,098,700 2,197,400 4,100 3,800 605.2 9.53 35719 327 236 13165
9017 2280 1,436,800 2,873,600 3,800 3,500 815.6 11.5 58453 465 309 18704
9021 2816 1,774,850 3,549,700 3,500 2,800 1002.9 13.3 84187 636 382 25591
9036 4828 3,042,450 6,084,900 2,800 2,500 1628.4 18.5 196033 1328 656 53417
9049 6571 4,141,300 8,282,600 2,500 — 2183.5 22.8 320743 1977 893 79536
*To calculate transmission unit torsional stiffness for other DBSEs, Torsional Stiffness (K) is: 1
Where L is the difference in length (inches) between minimum DBSE and actual DBSE. 1/K tu + L/Ks

Standard Hubs Large Hubs

Unbored Hub Typical Coupling Values** Unbored Hub Typical Coupling Values**
Coupling Weight Inertia Weight Inertia Stiffness Weight Inertia Weight Inertia Stiffness
Size lb lb-in2 lb lb-in2 x106 lb-in/rad K h lb lb-in2 lb lb-in2 x106 lb-in/rad K h***
0300 12.9 39 33.4 151 3.43 41.4 270 68.2 543 3.58
0500 22.8 100 54.9 362 5.57 51.7 421 95.3 937 5.73
0750 35.7 202 80.1 687 7.99 72.3 728 132.3 1633 8.18
1050 44.9 311 111.5 1183 12.8 107.5 1370 188.8 2996 13.4
1500 62.9 541 151.4 2004 25.2 149.4 2199 257.5 4834 26.3
2000 94.1 1030 213.4 3614 33.1 176.9 2986 312.3 6864 34.4
2600 133.3 1706 288.1 5695 42.3 168.9 2715 328.1 7319 43.8
3350 163.0 2488 334.7 7745 55.9 348.2 8958 547.5 18259 58.2
4250 209.7 3736 426.6 11605 71.1 339.5 8603 579.6 19570 73.1
6010 316.1 7340 616.3 21696 101.2 473.7 15077 809.5 34568 103
8500 441.7 12894 878.0 38682 142 742.5 31553 1231 69059 146
9013 688.4 26831 1301 76364 218 949.0 47718 1621 111071 223
9017 892.8 41567 1720 121528 286 1282 77117 2165 178514 292
9021 1226 69764 2239 189586 356 2193 189171 3377 383309 366
9036 2019 160039 3654 436978 610 2816 287264 4598 644009 621
9049 2659 253313 4838 700975 782 — — — — —
**Typical coupling values are based upon minimum DBSE and maximum bored standard or large hubs as appropriate. Hubs will be supplied unbored unless specified.
Consult your local sales office regarding standard bore and key tolerances.

NOTE: For the complete coupling, weights and inertia of two appropriate hubs plus a transmission unit are required.

***To calculate coupling torsional stiffness, Torsional Stiffness (KT) is: 1

Where K h is the torsional stiffness of each hub. 1/K + 1/Kh + 1/Kh
 TLC
T Series Couplings

TLC Typical Arrangement

A C (DBSE) E

F
B J‡
H‡ G
D ‡ ‡ LARGE
HUB
STANDARD MAX.
MAX. HUB BORE
BORE

‡ To suit applications such as taper shafts.

TLC Dimensional Data (inches)

Distance Between Shaft Ends Max. Bores**
Coupling C C Standard* Standard Large
Size A B Min. in. D E F G H J Hub Hub
0300 2.50 6.08 4.06 7 4.58 3.63 8.05 6.39 4.25 6.01 3.13 4.50
0500 3.00 7.18 4.69 7 5.58 3.75 9.03 6.99 5.25 6.55 3.81 4.69
0750 3.63 8.05 5.44 8 6.39 4.25 10.02 7.74 6.01 7.22 4.50 5.31
1050 3.75 9.03 5.94 9 6.99 4.94 11.25 8.87 6.55 8.35 4.69 6.19
1500 4.25 10.02 6.69 9 7.74 6.00 12.25 9.56 7.22 8.98 5.31 6.69
2000 4.94 11.25 7.13 10 8.87 6.00 12.85 10.80 8.35 10.22 6.19 7.50
2600 6.00 12.25 7.88 11 9.56 6.00 12.85 10.80 8.98 10.22 6.69 7.50
3350 6.00 12.85 7.94 11 10.80 7.63 15.65 13.37 10.22 12.69 7.50 9.50
4250 6.63 13.92 8.88 12 11.62 7.63 15.65 13.37 10.98 12.69 8.25 9.50
6010 7.63 15.65 9.81 13 13.37 8.50 17.68 14.93 12.69 14.16 9.50 10.63
8500 8.50 17.68 11.38 15 14.93 9.88 20.12 17.37 14.16 16.50 10.63 12.38
9013 9.88 20.12 12.50 — 17.37 10.75 22.16 18.93 16.50 17.97 12.38 13.50
9017 10.75 22.16 13.94 — 18.93 12.00 23.86 21.12 17.97 20.18 13.50 15.00
9021 12.00 23.86 15.00 — 21.12 14.19 28.15 24.93 20.18 23.77 15.00 17.75
9036 14.19 28.15 17.88 — 24.93 15.56 31.02 27.30 23.77 25.98 17.75 19.50
9049 15.56 31.02 19.81 — 27.30 — — — 25.98 — 19.50 —
All dimensions in inches unless otherwise stated, and should not be used for construction. Certified dimensions furnished upon request.
*These Distance Between Shaft End (DBSE) sizes are standard. Other lengths to suit specific shaft separations are available.
**Maximum bores shown are based on standard AGMA square keys dimensions.
 TLC
T Series Couplings

Selection Procedure
1. Select appropriate service factor SF.
2. Calculate coupling rating R from Example: 1500 HP electric motor to centrifugal
R = HP x 100 x SF pump at 1800 rpm
N R = 1500 x 100 x 1
where: 1800
HP = driver rated power R = 83.3 HP per 100 rpm
N = speed (rev./min.)
3. Select a coupling with the same or higher rating. Selection: TLCS - 0750
4. Check that the hub bore capacity is suitable.
Standard hub bore up to ...4.500"
5. Check peak torque capability is suitable for application. Large hub bore up to ........5.313"
6. Check speed capability. Peak torque capability .......126,800 lb.-in.
7. Check whether additional dynamic balancing is required.
Additional dynamic balancing should not be required.
8. Specify Distance Between Shaft Ends (DBSE).

Service Factor SF
Suggested service factors for electric motor, steam turbine, and
gas turbine drivers are given below.

Torque Variation Service Factor The examples given are for typical machines and are empirically
based guidelines. Knowledge of actual torque characteristics may
Constant Torque Centrifugal Pump 1.0* indicate a different service factor. For example, variable-speed
Centrifugal Compressor electric motors may exhibit a fluctuating torque characteristic.
Axial Compressor Consult John Crane for advice.
Centrifugal Blower

Slight Torque Screw Compressor 1.5

Fluctuation Gear, Lobe, and
Vane Pumps
Forced Draft Fan
Medium-Duty Mixer
Lobe Blower

Substantial Torque Reciprocating Pumps 2.0

Fluctuations Heavy-Duty Mixers
Induced Draft Fans

*Use a minimum service factor of 1.25 on electric motor drives

through a gearbox.

Available Options
■ Spark-resistant couplings for hazardous zone operation. ■ Torsional tuning.
■ Special materials for low temperature applications and/or ■ Axial adjustment shims for field correction of minor
higher corrosion resistance. DBSE differences.
■ Electrical insulation. Consult John Crane for any other special requirements.
■ Torque limiting and shear pin designs. Metastream couplings can be adapted to suit virtually all
power transmission coupling needs.
 TLC
T Series Couplings

Coupling Alignment
Correct installation and alignment of couplings is essential for reliable machinery performance.
John Crane supplies a variety of shaft alignment equipment and offers alignment training courses.

TLC MISALIGNMENT
Max. Axial Max. Parallel
Misalignment* Misalignment**
Coupling Equivalent Restoring
Size ± inch Thrust lb. inch Moment lb.-in.
0300 0.055 270 0.011 220
0500 0.066 450 0.013 360
0750 0.075 560 0.015 580
1050 0.087 900 0.016 890
1500 0.094 1240 0.018 1330
2000 0.106 1440 0.019 1950
2600 0.118 1730 0.021 2480
3350 0.126 2110 0.022 3100
4250 0.138 2470 0.023 3980
6010 0.154 3260 0.026 5670
8500 0.182 4180 0.030 7940
9013 0.218 5420 0.033 11900
9017 0.242 6820 0.036 15500
9021 0.268 7280 0.039 19500
9036 0.343 11500 0.047 34200
9049 0.391 14200 0.052 46400

NOTES: * Meets NEMA end float specification without modification.

** Values based on angular deflection of 1/3o per end and minimum DBSE.
Greater misalignment accommodation is possible by increasing dimension C.

The angular and axial restoring forces in the table above are given at maximum deflections. The graph below can be used to determine
forces across the full deflection range. The nonlinear characteristics can detune a system to prevent high amplitude axial vibration.

FORCE VS. DEFLECTION

100
% Max. Restoring Moment
% Max. Axial Thrust

R
ULA
ANG
50
L
IA
AX

0
0 50 100
% Max. Displacement
 TLC
T Series Couplings

Balance Recommendations
The inherent balance of the TLC range meets AGMA standard 9000-C90 When balancing improvement is requested, John Crane will
class 9. The adjacent chart relates the TLC sizes to operating speeds on dynamically balance the transmission unit. Hubs may also be
the basis of this AGMA class 9 characteristic to provide a general guide dynamically balanced, and this will usually be carried out after
to determine if dynamic balance improvement is necessary. machining the bore but before cutting single keyways.

TLC Coupling Size

9017

9013

8500
6010
4250
Balance
3350
Improvement
2600 May Be Required
2000
1500
1050
AGM

0750
AC

Balance
lass

0500
Improvement
9

Not Generally
0300 Required

1 2 3 4 5 6 7 8 9 10 15 20 30

Operating Speed (in thousand rpm)

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For your nearest John Crane facility, please contact one of the locations above.
If the products featured will be used in a potentially dangerous and/or hazardous process, your John Crane representative should be consulted prior to their selection and use.
In the interest of continuous development, John Crane Companies reserve the right to alter designs and specifications without prior notice. It is dangerous to smoke while handling
products made from PTFE. Old and new PTFE products must not be incinerated.
©2002 John Crane Inc. Print 7/02 www.johncrane.com ISO-Certified QS 9000 S-TLC