Ventilation: The sealing plug has to be exchanged with the separately packed venting filter.A couple of years ago, a photo of a giant earthworm discovered by scientists in eastern Ecuador went viral and stirred up a lot of debate about whether the photos were fake. The housing should be checked for leakages at an interval of approx. Under normal operating conditions, no maintenance is required. Lubrication: The gearboxes are lubricated for life using synthetic oil. Bearing system: All gearbox shafts with generously dimensioned roller bearings. 42103313 is optimized for manual operation. Only ratio 72 : 1 is generally self-locking. If a gearbox must be implicitly self-locking, or must implicitly not be self-locking, we urge you to contact us. Worms with 4 and 6 threads sometimes permit transmission ratios for gearing up (i = 5 : 1 to 13. Self-locking: Self-locking only occurs in worm gear units, when the unit cannot be driven from the output side. The starting efficiency factor is, as the operating efficiency factor, depending on the lead angle. Proper running in is a crucial factor influencing the lifetime of the gearbox. Worm gear made from special centrifugally cast bronze.Įfficiency factor: The efficiency factors stated in the selection tables are guideline values for properly run-in and lubricated gearboxes at operating temperature with nominal load and driving worm shaft.
Gearing: 13 ratios from 5 to 82 : 1 worm shaft hardened and ground.
Housing: High-quality grey cast iron, all sides machined and with mounting holes on 4 sides. General data: Universal heavy-duty gearboxes.Ĭentre distance 100 – 315 mm available on request.
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