18
9/16
L
9/16
11/16
O.D
L
L1
L2
A2
A1
D1
D2
13/16
O.D.
11/16
O.D
13/16
O.D.
L2
A2
D2
L1
A1
D1
FAIRLOC® TYPE HUBS
TORSIONAL VIBRATION ISOLATION
MOLDED NEOPRENE CENTER
SHAFT-TO-SHAFT INSULATION
Ribbed Style
Smooth Style
L
Overall
Length
± 1/64
S50FLR-0303
S50FLR-0304
S50FLR-0404
S50FLR-0406
S50FLR-0408
S50FLR-0606
S50FLR-0608
S50FLR-0808
.440
.440
.495
.610
.440
.440
.495
.610
.495
.610
.610
.1200
.1250
.1875
.2500
.1200
.1250
.1250
.1875
.2500
.1875
.2500
.2500
A2
Bore
+.001
-.000
Catalog Number
MATERIAL: Hubs – 303 Stainless Steel
Center – Molded Neoprene, Durometer 73
D1
Hub
Dia.
Cap
Screw
A1
Bore
+.001
-.000
D2
Hub
Dia.
Smooth Style
Ribbed Style
S50FLS-0303
S50FLS-0304
S50FLS-0404
S50FLS-0406
S50FLS-0408
S50FLS-0606
S50FLS-0608
S50FLS-0808
#2-56
#2-56
#2-56
#2-56 / #4-40
#2-56
#2-56 / #4-40
#4-40
.257
.257
.257
.295
.257
.257
.257
.328
.257
.295
.295
L1
Hub
Length
L2
Hub
Length
2.514
2.514
2.514
2.585
2.514
2.552
2.590
Maximum Shaft Misalignments:
Angular
15°
Parallel Offset .015 Max.
Ribbed
Style
Smooth
Style
8°
.010 Max.
Bore Size
Max. Torque
oz. in.
.1200
.1250
.1875
.2500
100
120
150
180
NOTE: Fairloc® hubs require controlled shaft tolerances.
Suggested clearance fit between the bore and shaft is .0001 / .0008.
Other bore sizes and combinations available on special order.
Fairloc® Neo-Flex Couplings - Long
