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HR125-20-20 - 1.25 Inch 17-4 PH Stainless Steel Flexible Shaft Coupling

Machined coupling manufactured from 17-4 PH Stainless Steel with Set Screw end attachments. This 1.25 Inch flexible shaft coupling has a 1.25 Inch O.D. and 0.625 Inch and 0.625 Inch bores.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Angular Misalignment 5 deg
Axial Motion 0.01 in
Bore Size 0.625 in
Bore Size 2 0.625 in
Brand Helical Products
Center Line 0.16 in
Display Name HR125-20-20
End Type Set Screw
Finish None
Hex Size 0.1875 in
Inertia 19.4 lbin/sec sq
Length 1.25 in
Material 17-4 PH Stainless Steel
Max Torque 57 lbs/in
Model Number HR125-20-20
Non-Reversing Torque 29 lbs/in
Operating Temperature 600 F
Outside Diameter 1.25 in
Parallel Offset 0.01 in
Rate (Rotational) 0.13 lbf/deg
Rated Speed 10000 rpm
Reversing Torque 14 lbs/in
SKU HR125-20-20
Screw Size 1/4-20
Seating Torque 65 lbs/in
Series HR
Specs (in metric)
Label Value
Angular Misalignment 5 deg
Axial Motion 0.25 mm
Bore Size 15.88 mm
Bore Size 2 15.88 mm
Brand Helical Products
Center Line 4.06 mm
Display Name HR125-20-20
End Type Set Screw
Finish None
Hex Size 4.76 mm
Inertia 22.35 kgcm/sec sq
Length 31.75 mm
Material 17-4 PH Stainless Steel
Max Torque 9.98 N-mm
Model Number HR125-20-20
Non-Reversing Torque 5.08 N-mm
Operating Temperature 315.56 C
Outside Diameter 31.75 mm
Parallel Offset 0.25 mm
Rate (Rotational) 0.58 N/deg
Rated Speed 10000 rpm
Reversing Torque 2.45 N-mm
SKU HR125-20-20
Screw Size 1/4-20
Seating Torque 11.38 N-mm
Series HR

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