Ground precision rack and pinion Quality Transmission Components

Ground Spur Gears/Ground Racks

Precision grade:
JIS Grade N7 (JIS B 1702-1:1998)
JIS Grade 3 (JIS B 1702:1976)
JIS Grade N7 (JIS B 1702-1:1998)
JIS Grade 3 (JIS B 1702:1976)
KHK R 001 grade 1
Gear teeth : Standard full depth
Pressure angle : 20
Material S45C (Carbon steel) ; SCM440 (Alloy steel)
Heat treatment:
Induction hardened teeth
Tooth, induction hardened after normalizing
Normalizing only
Core hardness: HB165194 ; HB225260 ; HB250285
Surface hardness : HRC4853 ; HRC4853
Surface treatment : Black oxide except ground surfaces
Surface finish Ground
Datum reference surface for gear cutting and grinding:
Bore
Shaft(Ground portion)
Bottom surface

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