TSKC

TSKC
T Series Couplings

A – Stainless Steel
Flexible Membranes
B – Overload Collars
E
C – Anti-Corrosion
Treatment
B
D – Minimum DBSE
(Distance Between
Shaft Ends)
E – Externally A
Wrenched Bolts
F – Compact Length

Product Description Design Feature

The Metastream TSKC range of close coupled
® ■ Completely maintenance free with no wearing parts.
membrane couplings has been specifically designed as ■ Spark resistant option for use in hazardous areas.
a direct replacement for lubricated gear couplings even
when the shaft separation is very small, typically 3mm. ■ Excellent power-to-weight ratio.
The TSKC coupling, incorporates a scalloped design of ■ High misalignment capability.
stainless steel flexible membrane which allows for
transmitting high torque combined with shaft ■ Low imposed forces on machinery leading to:
misalignment. - reduced machinery vibration
- maximised bearing life.
■ Easy to install.
■ Stainless steel flexible membranes for maximum life.
■ Can be supplied to meet API 610 8th edition specification.
■ Overload collars are fitted to protect the flexible
■ Intrinsic balance meets AGMA standard 9000 class 9.
membranes in case of severe torsional overload.
■ Ideally suited for electric motor and turbine drives in process ■ Anti-fly retention of the spacer in the unlikely event of
industry, marine, and power generation applications.
membrane failure.
■ Puller holes incorporated into hubs as standard.

Metastream is a registered trademark of John Crane

 TSKC
T Series Couplings

TSKC Technical Data

Coupling Rating kW/ Max. Cont. Peak Overload Maximum Weight Moment of Inertia WR2
Size* 1000 Torque Torque Speed Min. DBSE Extra DBSE Min DBSE Extra per mDBSE
rpm Nm Nm rpm Kg Kg/m kgm2 kgm2
0013 13 125 310 21,500 1.7 7.00 0.002 0.12
0033 33 320 790 20,000 4.1 9.35 0.006 0.024
0075 75 720 1790 16,300 8.2 12.54 0.019 0.051
0135 135 1290 3220 14,100 13.9 16.78 0.042 0.96
0230 230 2200 5490 12,000 22.4 19.72 0.096 0.156
0350 350 3350 8360 10,500 31.2 24.94 0.165 0.255
0500 500 4800 11940 9,500 42.2 27.84 0.280 0.35
0740 740 7100 17670 8,000 58.2 30.74 0.480 0.48
0930 930 8900 22200 7,000 75.0 34.20 0.720 0.66
1400 1400 13400 33400 6,000 98.0 39.38 1.100 0.91
NOTES: * Higher rated sizes are available. Consult John Crane for details.
Weights based on minimum DBSE and unbored hubs.
The standard parallel bore machining tolerance is Grade 7, to give a light interference on the shaft. Keyways will be cut to DIN 6885, BS 4235 Pt. 1 (metric)
or BS 46 Pt. 1 (inch).

TSKC Typical Arrangement

A E

ØD ØB MAXIMUM BORE

TSKC Dimensional Data

Distance Between
Coupling Shaft Ends (DBSE) Min Maximum
Size A B C* D E Bore**
0013 30 79 3 114 33.0 27.5
0033 40 98 3 134 43.5 37.0
0075 50 123 3 169 54.5 50.8
0135 60 145 3 194 65.5 61.0
0230 70 172 3 229 76.5 74.5
0350 80 197 3 254 86.0 85.0
0500 90 222 3 283 96.5 96.0
0740 100 247 3 319 107.0 107.0
0930 110 272 3 347 117.5 119.0
1400 120 297 3 374 128.5 130.0
NOTES: * Other Distance Between Shaft End lengths to suit specific applications are available.
** Maximum bores shown are based on standard DIN / BS rectangular keys.
All dimensions in mm unless otherwise stated, but should not be used for construction. Certified dimensions furnished upon request.
 TSKC
T Series Couplings

Selection Procedure
1. Select appropriate service factor SF. Example:
2. Calculate coupling rating R from 150 kW electric motor to centrifugal
R = kW x 1000 x SF pump at 2960 rpm
N
R = 150 x 1000 x 1
where:
2960
kW = driver rated power
R = 50.7 kW per 1000 rpm
N = speed (rpm)
3. Select a coupling with the same or higher rating.
Selection: TSKC - 0075
4. Check that the hub bore capacity is suitable.
Hub bore capacity 50.8 mm
5. Check peak torque capability is suitable for application.
Peak torque capability - 1790 Nm
6. Check speed capability.
Additional dynamic balancing would not be required.
7. Check whether additional dynamic balancing is 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
Constant Torque Centrifugal Pump 1.0* characteristics may indicate a different service factor.
Centrifugal Compressor For example, variable-speed electric motors may exhibit a
Axial Compressor fluctuating torque characteristic.
Centrifugal Blower
Consult John Crane for advice.
Slight Torque Screw Compressor 1.5
Fluctuation Gear, Lobe and * Use a minimum service factor of 1.25 on electric motor
Vane Pumps drives through a gearbox.
Forced Draft Fan
Medium Duty Mixer
Lobe Blower

Substantial Torque Reciprocating Pumps 2.0

Fluctuations Heavy Duty Mixers
Induced Draft Fans

Available Options
■ Spark-resistant couplings for hazardous zone operation. ■ Larger sized close coupled couplings are available up to
49,000 kW/1000.
■ Special materials for low temperature applications and/or
higher corrosion resistance. Consult John Crane for any other special requirements.
Metastream couplings can be adapted to suit virtually all
■ Electrical insulation.
power transmission coupling needs.
 TSKC
T Series Couplings

Coupling Alignment
Correct installation and alignment of couplings is essential The angular and axial restoring forces in the table below
for reliable machinery performance. left are given at maximum deflections. The chart can be
used to determine forces across the full deflection range.
John Crane supplies a variety of shaft alignment equipment
The nonlinear characteristics can detune a system to
and offers alignment training courses.
prevent high amplitude axial vibration.
TSKC MISALIGNMENT
Max. Axial Max. Parallel FORCE vs DEFLECTION
Misalignment* Misalignment** 100
Coupling Equivalent Restoring
Size ± mm Thrust kN mm Moment Nm

% Max. Restoring Moment

0013 1.0 0.2 0.25 4

% Max. Axial Thrust

0033 1.3 0.3 0.40 6
0075 1.5 0.4 0.60 10

R
LA
0135 2.0 0.6 0.70 12

GU
50

AN
0230 2.5 0.7 0.90 15
0350 2.8 0.8 1.10 35

L
IA
AX
0500 3.3 1.1 1.20 40
0740 3.8 1.3 1.40 50
0930 4.3 1.5 1.60 55
1400 5.0 2.7 1.70 60
0
0 50 100
NOTES: * Meets NEMA end float specifications without modification.
** Values based on angular deflection of 1/2° per end and % Max. Displacement
minimum DBSE. Greater misalignment accommodation is
possible by increasing dimension C.

Balance Recommendations
The inherent balance of the TSKC range meets AGMA Coupling Size
standard 9000-C90 class 9. The adjacent chart relates the
TSKC sizes to operating speeds on the basis of this AGMA 1400
Balance
class 9 characteristic to provide a general guide to 0930
Improvement
determine if dynamic balance improvement is necessary. 0740 May Be Required
When balancing improvement is requested, John Crane 0500
will dynamically balance the transmission unit. Hubs may 0350
0230
also be dynamically balanced, and this will usually be
carried out after machining the bore but before cutting 0135
single keyways. Balance
Class 9

0075 Improvement
Not Generally
Required
0033

0013
1 2 3 4 5 6 7 8 9 10 15 20 30
Operating Speed (thousand rpm)

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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.
©2003 John Crane Print 01/03 www.johncrane.com ISO 9001, ISO 14001, ISO/TS 16949 Certified. Details available on request. S-TSKC/Eng