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DIN 3990-16
Calculation of load capacity of cylindrical gears - Part 16: Determination of the micro-pitting load-carrying capacity of lubricants using FZG-test-method GT-C/8,3/90
DIN 3990-21
Calculation of load capacity of cylindrical gears; application standard for high speed gears and gears of similar requirement
DIN 3991-1
Calculation of load capacity of bevel gears - Part 1: Introduction and general influence factors
DIN 3991-2
Calculation of load capacity of bevel gears - Part 2: Calculation of surface durability (macropitting)
DIN 3991-3
Calculation of load capacity of bevel gears - Part 3: Calculation of tooth root strength
DIN 3991-4
Calculation of load capacity of bevel gears without pinion offset; calculation of scuffing load capacity
DIN 3993-1
Geometrische Auslegung von zylindrischen Innenradpaaren mit Evolventenverzahnung; Grundregeln
Geometrical design of cylindrical internal involute gear pairs; Basic rules
DIN 3993-2
Geometrical design of cylindrical internal involute gear pairs; Diagrams for geometrical limits of internal gear-pinion matings
DIN 3993-3
Geometrical design of cylindrical internal involute gear pairs; Diagrams for the determination of addendum modification coefficients
DIN 3993-4
Geometrical design of cylindrical internal involute gear pairs; Diagrams for limits of internal gear - pinion type cutter matings