KTR BoWex FLE-PA / FLE-PAC Operating/Mounting Instructions
KTR BoWex FLE-PA / FLE-PAC is a torsionally rigid flange coupling designed to compensate for shaft misalignment. This type of coupling is ideal for applications such as machinery, engines and pumps, where misalignment due to manufacturing tolerances, thermal expansion or other factors may occur. The BoWex FLE-PA / FLE-PAC is available in a variety of sizes, allowing for a wide range of torque capacities. The coupling can be assembled with different hub types depending on the specific application requirements. It is important to follow the assembly instructions carefully to ensure proper operation and longevity of the coupling.
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BoWex® FLE-PA / FLE-PAC
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
40117 EN
1 of 17
3
Please observe protection
note ISO 16016.
Drawn: 2018-09-06 Pz/Hk Replacing: KTR-N dated 2018-08-30
Verified: 2018-09-06 Pz Replaced by:
BoWex® FLE-PA / FLE-PAC is a torsionally rigid flange coupling. It is able to compensate for
shaft misalignment, for example caused by manufacturing inaccuracies, thermal expansion,
etc.
BoWex® FLE-PA
BoWex® FLE-PAC
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
40117 EN
1 of 17
3
Please observe protection
note ISO 16016.
Drawn: 2018-09-06 Pz/Hk Replacing: KTR-N dated 2018-08-30
Verified: 2018-09-06 Pz Replaced by:
BoWex® FLE-PA / FLE-PAC is a torsionally rigid flange coupling. It is able to compensate for
shaft misalignment, for example caused by manufacturing inaccuracies, thermal expansion,
etc.
BoWex® FLE-PA
BoWex® FLE-PAC
BoWex® FLE-PA / FLE-PAC
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
40117 EN
2 of 17
3
Please observe protection
note ISO 16016.
Drawn: 2018-09-06 Pz/Hk Replacing: KTR-N dated 2018-08-30
Verified: 2018-09-06 Pz Replaced by:
1 Technical data 3
2 Advice 7
2.1 General advice 7
2.2 Safety and advice symbols 7
2.3 General hazard warnings 7
2.4 Intended use 7
2.5 Coupling selection 8
2.6 Reference to EC Machinery Directive 2006/42/EC 8
3 Storage, transport and packaging 8
3.1 Storage 8
3.2 Transport and packaging 8
4 Assembly 9
4.1 Types of hubs 9
4.2 Components of the couplings 9
4.3 Advice for finish bore 10
4.4 Assembly of hub 11
4.5 Assembly of spline hub 11
4.6 Assembly of clamping hub or clamping hub N 11
4.7 Assembly of the flange 12
4.8 Displacements - alignment of the couplings 13
5 Start-up 15
6 Breakdowns, causes and elimination 16
7 Disposal 17
8 Spares inventory, customer service addresses 17
Table of contents
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
40117 EN
2 of 17
3
Please observe protection
note ISO 16016.
Drawn: 2018-09-06 Pz/Hk Replacing: KTR-N dated 2018-08-30
Verified: 2018-09-06 Pz Replaced by:
1 Technical data 3
2 Advice 7
2.1 General advice 7
2.2 Safety and advice symbols 7
2.3 General hazard warnings 7
2.4 Intended use 7
2.5 Coupling selection 8
2.6 Reference to EC Machinery Directive 2006/42/EC 8
3 Storage, transport and packaging 8
3.1 Storage 8
3.2 Transport and packaging 8
4 Assembly 9
4.1 Types of hubs 9
4.2 Components of the couplings 9
4.3 Advice for finish bore 10
4.4 Assembly of hub 11
4.5 Assembly of spline hub 11
4.6 Assembly of clamping hub or clamping hub N 11
4.7 Assembly of the flange 12
4.8 Displacements - alignment of the couplings 13
5 Start-up 15
6 Breakdowns, causes and elimination 16
7 Disposal 17
8 Spares inventory, customer service addresses 17
Table of contents
BoWex® FLE-PA / FLE-PAC
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
40117 EN
3 of 17
3
Please observe protection
note ISO 16016.
Drawn: 2018-09-06 Pz/Hk Replacing: KTR-N dated 2018-08-30
Verified: 2018-09-06 Pz Replaced by:
Illustration 1: BoWex® FLE-PA - short mounting Illustration 2: BoWex® FLE-PA - long mounting
Table 1: Dimensions - BoWex® FLE-PA
Size
Pilot
bore
[mm]
Bore d
[mm] Dimensions [mm] Special
length
[mm]
l1 max.
Nominal size acc. to SAE (D3)
Min. Max. D D1 l1 l3 l7 l8 l10 l11 6½“ 7½“ 8“ 10“ 11½“ 14“
48 - 20 48 68 100 50 41 50 20 13 48 up to 60 ● ● ● ●
T 48 13 20 48 68 100 50 38 45 20 13 46 - ● ● ● ●
T 55 17 20 55 85 115 50 37 48 24 13 48 - ● ● ● ●
65 / T 65 21 30 65 96 132 55 45 54 27 21 51 up to 70 ● ● ●
T 70 26 30 70 100 153 60 48 56 30 21 57 - ●
80 / T 80 31 35 80 124 170 90 78 87 30 21 87 - ● ●
100 / T 100 38 40 100 152 265 110 78 108 35 21 110 - ● ●
125 / T 125 45 50 125 192 250 140 103 133 50 28 140 - ● ●
Table 2: Technical data - BoWex® FLE-PA
Size
Torque [Nm] Weight /
mass
moment of
inertia J
Hub with
max. bore Ø
Flange connection acc. to
SAE - J620
TKN TK max TKW 6½“ 7½“ 8“ 10“ 11½“ 14“
48 240 600 120 [kg] 0.79 0.32 0.43 0.51 0.64 - -
[kgm2] 0.0007 0.0021 0.0035 0.0049 0.0085
T 48 300 750 150 [kg] 0.79 0.32 0.43 0.51 0.64 - -
[kgm2] 0.0007 0.0021 0.0035 0.0049 0.0085
T 55 450 1125 225 [kg] 1.20 0.34 0.62 0.45 0.646 - -
[kgm2] 0.0016 0.0022 0.0053 0.0044 0.0086
65 650 1600 325 [kg] 1.50 - - 0.63 0.64 0.89 -
[kgm2] 0.0027 0.0064 0.0065 0.012
T 65 800 2000 400 [kg] 1.60 - - 0.63 0.64 0.89 -
[kgm2] 0.0035 0.0064 0.0065 0.012
T 70 1000 2500 500 [kg] 2.60 - - - 0.941 - -
[kgm2] 0.0059 0.0132
80 1200 3000 600 [kg] 5.20 - - - 1.05 1.12 -
[kgm2] 0.0151 0.015 0.022
1 Technical data
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
40117 EN
3 of 17
3
Please observe protection
note ISO 16016.
Drawn: 2018-09-06 Pz/Hk Replacing: KTR-N dated 2018-08-30
Verified: 2018-09-06 Pz Replaced by:
Illustration 1: BoWex® FLE-PA - short mounting Illustration 2: BoWex® FLE-PA - long mounting
Table 1: Dimensions - BoWex® FLE-PA
Size
Pilot
bore
[mm]
Bore d
[mm] Dimensions [mm] Special
length
[mm]
l1 max.
Nominal size acc. to SAE (D3)
Min. Max. D D1 l1 l3 l7 l8 l10 l11 6½“ 7½“ 8“ 10“ 11½“ 14“
48 - 20 48 68 100 50 41 50 20 13 48 up to 60 ● ● ● ●
T 48 13 20 48 68 100 50 38 45 20 13 46 - ● ● ● ●
T 55 17 20 55 85 115 50 37 48 24 13 48 - ● ● ● ●
65 / T 65 21 30 65 96 132 55 45 54 27 21 51 up to 70 ● ● ●
T 70 26 30 70 100 153 60 48 56 30 21 57 - ●
80 / T 80 31 35 80 124 170 90 78 87 30 21 87 - ● ●
100 / T 100 38 40 100 152 265 110 78 108 35 21 110 - ● ●
125 / T 125 45 50 125 192 250 140 103 133 50 28 140 - ● ●
Table 2: Technical data - BoWex® FLE-PA
Size
Torque [Nm] Weight /
mass
moment of
inertia J
Hub with
max. bore Ø
Flange connection acc. to
SAE - J620
TKN TK max TKW 6½“ 7½“ 8“ 10“ 11½“ 14“
48 240 600 120 [kg] 0.79 0.32 0.43 0.51 0.64 - -
[kgm2] 0.0007 0.0021 0.0035 0.0049 0.0085
T 48 300 750 150 [kg] 0.79 0.32 0.43 0.51 0.64 - -
[kgm2] 0.0007 0.0021 0.0035 0.0049 0.0085
T 55 450 1125 225 [kg] 1.20 0.34 0.62 0.45 0.646 - -
[kgm2] 0.0016 0.0022 0.0053 0.0044 0.0086
65 650 1600 325 [kg] 1.50 - - 0.63 0.64 0.89 -
[kgm2] 0.0027 0.0064 0.0065 0.012
T 65 800 2000 400 [kg] 1.60 - - 0.63 0.64 0.89 -
[kgm2] 0.0035 0.0064 0.0065 0.012
T 70 1000 2500 500 [kg] 2.60 - - - 0.941 - -
[kgm2] 0.0059 0.0132
80 1200 3000 600 [kg] 5.20 - - - 1.05 1.12 -
[kgm2] 0.0151 0.015 0.022
1 Technical data
BoWex® FLE-PA / FLE-PAC
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
40117 EN
4 of 17
3
Please observe protection
note ISO 16016.
Drawn: 2018-09-06 Pz/Hk Replacing: KTR-N dated 2018-08-30
Verified: 2018-09-06 Pz Replaced by:
Page 3 continued:
Illustration 1: BoWex® FLE-PA - short mounting Illustration 2: BoWex® FLE-PA - long mounting
Table 2: Technical data - BoWex® FLE-PA
Size
Torque [Nm] Weight /
mass
moment of
inertia J
Hub with
max. bore Ø
Flange connection acc. to
SAE - J620
TKN TK max TKW 6½“ 7½“ 8“ 10“ 11½“ 14“
T 80 1500 3750 750 [kg] 5.20 - - - 1.05 1.12 -
[kgm2] 0.0151 0.015 0.022
100 2050 5150 1025 [kg] 9.37 - - - - 1.16 8.45
[kgm2] 0.0401 0.021 0.234
T 100 2500 6250 1250 [kg] 9.37 - - - - 1.16 8.45
[kgm2] 0.0401 0.021 0.234
125 4250 10700 2125 [kg] 19.73 - - - - 2.09 9.85
[kgm2] 0.1359 0.043 0.306
T 125 5300 13250 2650 [kg] 19.73 - - - - 2.09 9.85
[kgm2] 0.1359 0.043 0.306!
In case if a dimensional drawing was created for the coupling, the dimensions entered have
to be primarily observed.
1 Technical data
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
40117 EN
4 of 17
3
Please observe protection
note ISO 16016.
Drawn: 2018-09-06 Pz/Hk Replacing: KTR-N dated 2018-08-30
Verified: 2018-09-06 Pz Replaced by:
Page 3 continued:
Illustration 1: BoWex® FLE-PA - short mounting Illustration 2: BoWex® FLE-PA - long mounting
Table 2: Technical data - BoWex® FLE-PA
Size
Torque [Nm] Weight /
mass
moment of
inertia J
Hub with
max. bore Ø
Flange connection acc. to
SAE - J620
TKN TK max TKW 6½“ 7½“ 8“ 10“ 11½“ 14“
T 80 1500 3750 750 [kg] 5.20 - - - 1.05 1.12 -
[kgm2] 0.0151 0.015 0.022
100 2050 5150 1025 [kg] 9.37 - - - - 1.16 8.45
[kgm2] 0.0401 0.021 0.234
T 100 2500 6250 1250 [kg] 9.37 - - - - 1.16 8.45
[kgm2] 0.0401 0.021 0.234
125 4250 10700 2125 [kg] 19.73 - - - - 2.09 9.85
[kgm2] 0.1359 0.043 0.306
T 125 5300 13250 2650 [kg] 19.73 - - - - 2.09 9.85
[kgm2] 0.1359 0.043 0.306!
In case if a dimensional drawing was created for the coupling, the dimensions entered have
to be primarily observed.
1 Technical data
5
6
7
8
9
10
11
12
13
14
15
16
17
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Key Features
- Torsionally rigid
- Shaft misalignment compensation
- Various sizes
- Different hub types
- High torque capacity
- Easy assembly
Related manuals
Frequently Answers and Questions
What is the purpose of the BoWex FLE-PA / FLE-PAC coupling?
The BoWex FLE-PA / FLE-PAC coupling is designed to compensate for misalignment between shafts, which can occur due to manufacturing tolerances, thermal expansion, or other factors. It helps to prevent wear and tear on connected components and ensures smooth operation of the drivetrain.
What are the different hub types available for the BoWex FLE-PA / FLE-PAC coupling?
The BoWex FLE-PA / FLE-PAC coupling can be assembled with different hub types, including hubs with keyways and setscrews, clamping hubs with spline bores, and spline hubs with end plates. The specific hub type to be used depends on the application and shaft requirements.
How do I align the BoWex FLE-PA / FLE-PAC coupling?
To ensure proper operation and longevity of the coupling, it is essential to align the shafts accurately. Refer to the assembly instructions for specific details on alignment procedures and permissible displacement values.
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