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The performance characteristics of the two-speed gearboxes for 1PH7/1PH4 motors are as follows:
- Drive power up to 100 kW (134 HP)
- Constant power range at drive shaft up to 1:24
- Suitable for both directions of rotation
- Motor shaft heights SH 100 to SH 225
- Types of construction IM B35 and IM V15 (IM V35 available on request)
Mounting the change-speed gearbox outside the headstock of the machine tool has the following advantages:
- Easy adaptation to the machine tool
- Low noise and no temperature fluctuations due to gearing inside the headstock
- Separate lubrication systems for the main spindle (grease) and the change-speed gearbox (oil)
- Gearbox efficiency > 95 %
- Instead of V belts, the drive power can also be transmitted from the gear output by a gear wheel (available on request) or coaxially by means of a flexible coupling.