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Steering rack

Centerless grinding of steering racks

General characteristics

Rod diameter 22 mm
Rod length 550 mm
Material SAE 1141
Hardness 187 - 212 HB
Throughfeed rate 1,94 m/min
Type of dresser Multipoint (21)
Coolant 3%, synthetic or semi-synthetic

 

 

Grinding process

 Roughing
Machine Estarta 327 MDA
Grinding wheel C3MBC650D22D
Wheel dimensions 650 x 500 x 305
Regulating wheel A120RL
Wheel dimensions 350 x 500 x 203,2
Stock removal 0,15 – 0,25 mm.
Dressing frequency 250 units
   
Surface roughness (Ra) 0,13 – 0,21 μm
Bending 0,006 mm.