Centerless Stone Lapping Machine

for machining of inner and outer ring raceway for single and double-row taper and cylindrical roller bearings

Standard application range :
- Outer ring : OD 205 - 400 mm x Breadth 30 - 245 mm x Raceway taper angle 0° - 60°
- Inner ring : OD 150 - 335 mm x Breadth 30 - 245 mm x Raceway taper angle 0° - 60°

HN-400E

Main Features

  • Machining of inner and outer ring raceways for tapered and cylindrical roller bearings
  • One-cycle automatic machine
  • As the machining range of the tooling is all limited and shared, the need for specialized tooling based on workpiece size is reduced
  • Outer diameter roller centerless support system
  • Easy changeover

Work piece: Taper Roller Bearing Inner Ring

Machine Specifications

1) Work piece
Single/double row Inner/outer ring raceway of cylindrical/taper roller bearings
2) Machining range
Outer ring O.D. 205 - 400 mm
Width 30 - 245 mm
Raceway taper angle 0 - 60°
Inner ring O.D. 150 - 335 mm
Width 30 - 245 mm
Raceway taper angle 0 - 60°
3) Work piece support system
O.D. roller centerless support system
4) Machining method
Infeed type, Traverse cut & plunge cut
5) Main spindle unit
Revolution 480 rpm (Max.)
Automatic multi-step change-over
Right/left adjustment amount Right 17 mm, Left 3 mm (against reference position)
Drive motor Inverter control
6) Stone lapping unit
Oscillation unit
Oscillation frequency 2,000 fpm (Max.)
Automatic multi-step change-over
Amplitude Replaceable oscillation ring
Drive motor Servomotor
Traverse unit
Movement amount 350 mm
Drive motor Servomotor
Angle adjustment unit
Angle adjustment amount Counterclockwise 0 - 30° viewed from upside
Position detection mechanism by encoder and auto-clamping unit
Angle drive motor Inverter control
Front/back movement unit
Movement amount 620 mm Motor drive
Position detection mechanism by encoder and auto-clamping unit
Drive motor Inverter control
7) Stone head
Stone grip type stone head
Pressure stroke 20 mm Pneumatic drive
Stone pressurization Electropneumatic regulator control/Back pressure control
Automatic multi-step change-over
8) Pressure roller unit
Clamp arm movement amount 40 mm Hydraulic drive
Movement amount in diameter direction 70 mm Motor drive
Movement amount in width direction 210 mm Motor drive
9) Roller support part
O.D. roller centerless support system
10) Machine size
(W)2,350×(D)2,345×(H)1,740 mm
11) Machine weight
5,300 Kg

Note : Specifications are subject to change without notice.