This standard is applicable to the calculation of tooth surface contact fatigue strength of aerospace steel hardened spur and spiral bevel gears (including zero-degree bevel gears), and is used to check the ability of bevel gear tooth surfaces to resist pitting corrosion.
HB/Z 89.2-1985 history
1985HB/Z 89.2-1985 Calculation of Contact Fatigue Strength of Aeronautical Bevel Gear Tooth Surface