Couplings & Drive Shafts
Drive Shaft - Standard
Solid Drive Shafts in sizes to suit your application for low to High Torque transmission.
Solid drive shafts are a plain shaft length with machined journals at each end with keyed drive. The shafts are available in Steel and Stainless Steel. There are 3 popular sizes that are readily available, however most sizes up to 95mm diameter can be accommodated.
Useful Information
Key Features
- Machined journals and keyways at each end
- Keys supplied for each end
- Standard diameters of 20mm, 30mm, 40mm – for torque up to 675Nm
- Other diameters up to 95mm available on request.
- Up to 5m lengths available as standard
- Steel or Stainless Steel designs available
- These shafts require bearing support (plummer blocks)
Selecting the Right Drive Shaft
Select Drive Shaft Diameter
Select a standard drive shaft from the drive shaft table and check its torque rating and angle of twist rating against the application requirements.
If Transmitted Torque (Nm) < Maximum Drive Shaft Torque (Nm) & If Acceptable Angle of Twist (Deg.) for shaft length < Rated Angle of Twist for Drive Shaft (Deg.) then drive shaft diameter selected is acceptable.
Check Drive Shaft Critical Speed (Shaft Whirling)
For the unsupported shaft length calculate the drive shaft critical speed for the support conditions required.
If Shaft Speed (rpm) < Drive Shaft Critical Speed (rpm) then drive shaft selection and configuration is acceptable.
Note: A drive shaft critical speed chart is available in the screw jack design guide.
General notes
- Maximum misalignment values are extremes and should not be combined. As operating misalignment approaches the maximum, torque and power ratings should be reduced to maintain life
- The maximum axial misalignment values apply when the coupling is aligned. If axial misalignment greater than the listed maximum is required, consult Power Jacks
- The inertia values includes shafts through the bores
- When ordering please quote the coupling size and type, specify the bore and keyway sizes, and advise if puller holes or set-screws are required
- For maximum performance the screw jacks, actuators, gearboxes, motors and shafts should be carefully aligned
- Imperial (Inch) couplings on request
