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Set Screw Oldham Coupling Hubs with Inch Bore
Set screw oldham coupling hubs with inch dimensions. Bore sizes range from 1/8" to 3/4".
Features Large parallel misalignment
Electrically isolating
Replaceable disk
Balanced design
Constant velocity
RoHS3 and REACH Compliant
Maximum speed: 4,500 RPM
Bore tolerance: +.001"/-.000"
Temperature range (Deg. F)with Acetal Disk:
-10° to 150°
with Nylon Disk:
-10° to 130°
How to Order Complete Coupling: Oldham couplings are an assembly of two hubs and one disk
Hubs: Choose two hubs in inch or metric in any style with the same outside diameter
Disk: Choose disk to match performance criteria. The disk must have the same outside diameter as both hubs.
Each hub and disk is sold separately
Products
Download CAD File:
OST12-3-A
OST12-3-A
As low as
$11.24
$16.48
Ruland OST12-3-A, 3/16" Oldham Coupling Hub, Aluminum, Set Screw Style, 0.750" OD, 0.380" Length
Download CAD File:
OST12-3-SS
OST12-3-SS
As low as
$27.73
$68.03
Ruland OST12-3-SS, 3/16" Oldham Coupling Hub, 303 Stainless Steel, Set Screw Style, 0.750" OD, 0.380" Length
Download CAD File:
OST12-4-A
OST12-4-A
As low as
$11.24
$16.48
Ruland OST12-4-A, 1/4" Oldham Coupling Hub, Aluminum, Set Screw Style, 0.750" OD, 0.380" Length
Download CAD File:
OST12-4-SS
OST12-4-SS
As low as
$27.73
$68.03
Ruland OST12-4-SS, 1/4" Oldham Coupling Hub, 303 Stainless Steel, Set Screw Style, 0.750" OD, 0.380" Length
Download CAD File:
OST12-5-A
OST12-5-A
As low as
$11.24
$16.48
Ruland OST12-5-A, 5/16" Oldham Coupling Hub, Aluminum, Set Screw Style, 0.750" OD, 0.380" Length
Download CAD File:
OST12-5-SS
OST12-5-SS
As low as
$27.73
$68.03
Ruland OST12-5-SS, 5/16" Oldham Coupling Hub, 303 Stainless Steel, Set Screw Style, 0.750" OD, 0.380" Length
Download CAD File:
OST16-4-A
OST16-4-A
As low as
$13.08
$19.18
Ruland OST16-4-A, 1/4" Oldham Coupling Hub, Aluminum, Set Screw Style, 1.000" OD, 0.467" Length
Download CAD File:
OST16-4-SS
OST16-4-SS
As low as
$32.27
$79.18
Ruland OST16-4-SS, 1/4" Oldham Coupling Hub, 303 Stainless Steel, Set Screw Style, 1.000" OD, 0.467" Length
Download CAD File:
OST16-5-A
OST16-5-A
As low as
$13.08
$19.18
Ruland OST16-5-A, 5/16" Oldham Coupling Hub, Aluminum, Set Screw Style, 1.000" OD, 0.467" Length
Download CAD File:
OST16-5-SS
OST16-5-SS
As low as
$32.27
$79.18
Ruland OST16-5-SS, 5/16" Oldham Coupling Hub, 303 Stainless Steel, Set Screw Style, 1.000" OD, 0.467" Length
Download CAD File:
OST16-6-A
OST16-6-A
As low as
$13.08
$19.18
Ruland OST16-6-A, 3/8" Oldham Coupling Hub, Aluminum, Set Screw Style, 1.000" OD, 0.467" Length
Download CAD File:
OST16-6-SS
OST16-6-SS
As low as
$32.27
$79.18
Ruland OST16-6-SS, 3/8" Oldham Coupling Hub, 303 Stainless Steel, Set Screw Style, 1.000" OD, 0.467" Length
Download CAD File:
OST16-8-A
OST16-8-A
As low as
$13.08
$19.18
Ruland OST16-8-A, 1/2" Oldham Coupling Hub, Aluminum, Set Screw Style, 1.000" OD, 0.467" Length
Download CAD File:
OST16-8-SS
OST16-8-SS
As low as
$32.27
$79.18
Ruland OST16-8-SS, 1/2" Oldham Coupling Hub, 303 Stainless Steel, Set Screw Style, 1.000" OD, 0.467" Length
Download CAD File:
OST21-10-A
OST21-10-A
As low as
$19.66
$28.83
Ruland OST21-10-A, 5/8" Oldham Coupling Hub, Aluminum, Set Screw Style, 1.313" OD, 0.590" Length
Download CAD File:
OST21-10-SS
OST21-10-SS
As low as
$48.52
$119.04
Ruland OST21-10-SS, 5/8" Oldham Coupling Hub, 303 Stainless Steel, Set Screw Style, 1.313" OD, 0.590" Length
Download CAD File:
OST21-5-A
OST21-5-A
As low as
$19.66
$28.83
Ruland OST21-5-A, 5/16" Oldham Coupling Hub, Aluminum, Set Screw Style, 1.313" OD, 0.590" Length
Download CAD File:
OST21-5-SS
OST21-5-SS
As low as
$48.52
$119.04
Ruland OST21-5-SS, 5/16" Oldham Coupling Hub, 303 Stainless Steel, Set Screw Style, 1.313" OD, 0.590" Length
Download CAD File:
OST21-6-A
OST21-6-A
As low as
$19.66
$28.83
Ruland OST21-6-A, 3/8" Oldham Coupling Hub, Aluminum, Set Screw Style, 1.313" OD, 0.590" Length
Download CAD File:
OST21-6-SS
OST21-6-SS
As low as
$48.52
$119.04
Ruland OST21-6-SS, 3/8" Oldham Coupling Hub, 303 Stainless Steel, Set Screw Style, 1.313" OD, 0.590" Length
Download CAD File:
OST21-8-A
OST21-8-A
As low as
$19.66
$28.83
Ruland OST21-8-A, 1/2" Oldham Coupling Hub, Aluminum, Set Screw Style, 1.313" OD, 0.590" Length
Download CAD File:
OST21-8-SS
OST21-8-SS
As low as
$48.52
$119.04
Ruland OST21-8-SS, 1/2" Oldham Coupling Hub, 303 Stainless Steel, Set Screw Style, 1.313" OD, 0.590" Length
Download CAD File:
OST26-10-A
OST26-10-A
As low as
$23.81
$34.93
Ruland OST26-10-A, 5/8" Oldham Coupling Hub, Aluminum, Set Screw Style, 1.625" OD, 0.710" Length
Download CAD File:
OST26-10-SS
OST26-10-SS
As low as
$58.81
$144.30
Ruland OST26-10-SS, 5/8" Oldham Coupling Hub, 303 Stainless Steel, Set Screw Style, 1.625" OD, 0.710" Length
Part number
Bore (B1)
Small Bore (B2)
Length (L)
Material
Outer Diameter (OD)
Maximum Speed
OST12-3-A
0.1875 in
0.875 in (22.2 mm)
Aluminum
0.750 in (19.1 mm)
4,500 RPM
OST12-3-SS
0.1875 in
0.875 in (22.2 mm)
303 Stainless Steel
0.750 in (19.1 mm)
4,500 RPM
OST12-4-A
0.2500 in
0.875 in (22.2 mm)
Aluminum
0.750 in (19.1 mm)
4,500 RPM
OST12-4-SS
0.2500 in
0.875 in (22.2 mm)
303 Stainless Steel
0.750 in (19.1 mm)
4,500 RPM
OST12-5-A
0.3125 in
0.875 in (22.2 mm)
Aluminum
0.750 in (19.1 mm)
4,500 RPM
OST12-5-SS
0.3125 in
0.875 in (22.2 mm)
303 Stainless Steel
0.750 in (19.1 mm)
4,500 RPM
OST16-4-A
0.2500 in
1.250 in (31.8 mm)
Aluminum
1.000 in (25.4 mm)
4,500 RPM
OST16-4-SS
0.2500 in
1.250 in (31.8 mm)
303 Stainless Steel
1.000 in (25.4 mm)
4,500 RPM
OST16-5-A
0.3125 in
1.250 in (31.8 mm)
Aluminum
1.000 in (25.4 mm)
4,500 RPM
OST16-5-SS
0.3125 in
1.250 in (31.8 mm)
303 Stainless Steel
1.000 in (25.4 mm)
4,500 RPM
OST16-6-A
0.3750 in
1.250 in (31.8 mm)
Aluminum
1.000 in (25.4 mm)
4,500 RPM
OST16-6-SS
0.3750 in
1.250 in (31.8 mm)
303 Stainless Steel
1.000 in (25.4 mm)
4,500 RPM
OST16-8-A
0.5000 in
1.250 in (31.8 mm)
Aluminum
1.000 in (25.4 mm)
4,500 RPM
OST16-8-SS
0.5000 in
1.250 in (31.8 mm)
303 Stainless Steel
1.000 in (25.4 mm)
4,500 RPM
OST21-10-A
0.6250 in
1.875 in (47.6 mm)
Aluminum
1.313 in (33.3 mm)
4,500 RPM
OST21-10-SS
0.6250 in
1.875 in (47.6 mm)
303 Stainless Steel
1.313 in (33.3 mm)
4,500 RPM
OST21-5-A
0.3125 in
1.875 in (47.6 mm)
Aluminum
1.313 in (33.3 mm)
4,500 RPM
OST21-5-SS
0.3125 in
1.875 in (47.6 mm)
303 Stainless Steel
1.313 in (33.3 mm)
4,500 RPM
OST21-6-A
0.3750 in
1.875 in (47.6 mm)
Aluminum
1.313 in (33.3 mm)
4,500 RPM
OST21-6-SS
0.3750 in
1.875 in (47.6 mm)
303 Stainless Steel
1.313 in (33.3 mm)
4,500 RPM
OST21-8-A
0.5000 in
1.875 in (47.6 mm)
Aluminum
1.313 in (33.3 mm)
4,500 RPM
OST21-8-SS
0.5000 in
1.875 in (47.6 mm)
303 Stainless Steel
1.313 in (33.3 mm)
4,500 RPM
OST26-10-A
0.6250 in
2.000 in (50.8 mm)
Aluminum
1.625 in (41.3 mm)
4,500 RPM
OST26-10-SS
0.6250 in
2.000 in (50.8 mm)
303 Stainless Steel
1.625 in (41.3 mm)
4,500 RPM
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