Material
Case: AA15 Red Anodised Aluminium (6082-T6).
Gears: 805M20 (21NiCrMo2) (8620).
Threaded Bearing Caps: Mild Steel, chemically blackened (blackodised).
Fasteners: Steel (non-plated).
Bearings: Steel (ZZ or 2RS Seals).

Performance
Backlash: Depends on ratio. Greased for Life.
Max. Input Speed: 3,000 rpm.

Testing in your applications is necessary.
You will need to assess duty cycles and confirm gearbox suitability with your own calculations.
All figures listed are for guidance only.