A drive spindle transmits the torque from the gearbox to the roll. Its joints compensate for the fact that the roll changes its height during adjustment and is not in line with the gearbox.
Design and function
The shaft has a universal joint at each end. Each consists of two yokes and a cross that runs in rolling bearings. A sliding section in the middle compensates for changes in length. At the roll end a coupling head fits onto the roll neck.
In heavy stands gear spindles or slipper spindles are also used. The shaft is selected according to torque, deflection angle and available space.
Where it is used
Drive spindles work between pinion stand and mill stand and on roller tables, pinch rolls and straighteners. Shocks during bite load the joints heavily, so crosses and bearings are checked and replaced regularly.
Typical spare and wear parts
- Complete drive spindles by type or dimension sheet
- Cross kits with bearings and seals
- Coupling heads, flanges and flange bolts
- Sliding sections and splined shafts
- Grease nipples and guards
What helps with a request
- Manufacturer and type of the machine or plant
- Designation, part number or drawing of the part
- Dimensions, material and a photo of the part or nameplate
- Quantity and required date
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