F Series - A Coupling with an Expandable Shaft  
  
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Part No.
Thru Bore
D L E F G Clamp
Set
Inch
+.000
-.010
Inch
±.015
Inch
±.005

Note
2
Inch
±.015
Inch
±.005
(screw) Inch
(torque) LB.IN.

Note
4
FTOOO075 .745 1.00 .190 .550 .230 (18)
2-56
18
FTOOO100
FTSOO100
.995
.995
1.25
1.10
.230
.230
.550
.500
.230
.230
(18)
6-32
34
FTOOO125
FTSOO125
1.240
1.240
1.25
1.10
.290
.290
.550
.500
.230
.230
(18)
6-32
34
FTOOO150 1.485 1.25 .375 .500 .230 (41)
8-32
59
     
Part No.
Thru Bore
A Shaft B Bore Static Torque Torsional Stiffness Inertia Mass Misalignment
(see definitions)
MM
+.025
-.000

Notes
1,2,3
Inch
+.001
-.000

Notes
1,2,3
MM
+.025
-.000

Notes
1,2,3
Inch
+.001
-.000

Notes
1,2,3


LB.IN

Note
6

MIN /
LB.IN

Note
7

10-3
Ib.in.2

Note
9


Ib.

Note
9
Angular
Offset Degrees
Parallel
Off Set
Inch

Axial
Motion
Inch
FTOOO075 5  0.187 5  0.187         0.015 ±.015
 6  0.250  6 0.250        
8  0.312 8 0.312 28  8.5  2.179  0.025 
FTOOO100
FTSOO100
5 0.187 5 0.187         0.025
0.020
±.020
±.020
6 0.250 6 0.250        
8 0.312 8 0.312 42 6.8 9.927 0.066
10 0.375 10 0.375        
12 0.437 12 0.437        
FTOOO125
FTSOO125
6 0.250 6 0.250         0.030
0.025
±.025
±.025
8 0.312 8 0.312        
10 0.375 10 0.375 63 3.00 24.26 0.102
12 0.437 12 0.437        
14 0.500 14 0.500        
FTOOO150 8 0.312 8 0.312         0.030 ±.030
10 0.375 10 0.375        
12 0.437 12 0.437 70 1.33 50.08 0.142
14 0.500 14 0.500        
16 0.625 16 0.625        
  
  1. All E and F couplings have an inside relief so the shafts will not touch the beams at the maximum misalignment ratings.
  2. Clamps are an integral part of the coupling and cannot be removed.
  3. All screws are hex socket, steel with black oxide finish. For stainless steel screws.
  4. Screw torques are the screw manufacturer’s maximum ratings.
  5. Coupling material is 2024-T3.51. QQA225/6 aluminum with MIL-A8625 Type II black anodize.
  6. Static torque is the maximum coupling torque rating.
  7. Torque and torsional stiffness rating are at a maximum misalignment, not in a straight line.
  8. The expanding shaft torque holding force is dependent on the pilot hole finish and the expander screw’s tightness.
  9. Mass and inertia are calculated without the G10 insert.
  10. E & F have thru bores only.
  11. TEST BEFORE YOU BUY. Rocom will furnish samples at no charge for all new OEM designs or for comparative evaluation.
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