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 300 - 700 mm x Breadth 50 - 400 mm x Raceway taper angle 0° - 70°
- Inner ring : OD 300 - 640 mm x Breadth 50 - 400 mm x Raceway taper angle 0° - 70°

HN-700E

Application

1) Taper roller bearing

2) Cylindrical roller bearing

Main Features

  • Machining of raceways for large double-row tapered and cylindrical roller bearings
  • Each axis is servoed, allowing for easy setting of angle adjustment, etc.
  • As the machining range of the tooling is all limited and shared, the need for specialized tooling due to differences in workpiece size is reduced
  • One-cycle automatic machine
  • Easy changeover
  • Outer diameter roller centerless support system

Work piece: Taper roller bearing outer ring

Machine Specifications

1) Work piece
Inner and outer ring of single and double-row cylindrical & Taper roller bearings
2) Machining range
O.D. 300 - 700 mm
(Cyl. O.D. Max. 600 mm)(Cyl. I.D. Min. 255 mm)
Width 50 - 400 mm
Raceway taper angle 0 - 70°
3) Work piece support system
O.D. roller centerless support system
4) Machining method
Infeed type, Traverse cut & plunge cut
5) Main spindle unit
Head stock
Revolution 330 rpm (Max.) Automatic multi-step change-over
Longitudinal directionadjustment Right 10 mm, Left 10 mm (against reference position)
Drive motor Inverter control
Front/back movement unit
Movement amount 945 mm
Drive motor AC servomotor
6) Stone lapping unit
Traverse unit
Movement amount 350 mm
Drive motor AC servomotor
Angle adjustment unit
Swivel angle 0 - 35° counterclockwise viewed from upside
Drive motor AC servomotor
Oscillation unit
Oscillation frequency 2,000 fpm (Max.)
Automatic multi-step change-over
Amplitude Replaceable oscillation ring
Drive motor Inverter control
7) Stone head part
Pressure stroke 35 mm Pneumatic drive
Stone pressurization Back pressure control
Automatic multi-step change-over
8) Pressure roller unit
Stroke 40 mm Hydraulic drive
Movement amount in diameter direction 100 mm Motor drive
Movement amount in width direction 160 mm Motor drive
9) Roller support part
O.D. roller centerless support system
10) Machine size
(W)2,850×(D)2,300×(H)1,975 mm
11) Machine weight
9,000 Kg

Note : Specifications are subject to change without notice.