Parker's standard gearheads are rated to run down to -20 C. Modifications can be made to extend the minimum temperature depending on how extreme the conditions are.
If the ambient temperature is below -20 C and above -40 C, we would offer the following:
- Use bearings packed with Mobil 28 grease
- Use Mobil 28 grease on gear teeth in place of the standard oil
If the ambient is below -40 C and above -50 C:
- Use same modifications as above
- Remove shaft seals
Note that if the shaft seals are removed then the IP65 rating is lost.