STK-200WTB-B

Standard Application range :
OD 24.25 - 115 mm x Length 6 - 45 mm x R dimension 3 - 10 mm

Application

Centerless stone lapping machine for inner ring raceways of ball bearings
Servomotor is directly connected to oscillating arm, enabling efficient changeover and condition changes. The stone head oscillating arm moves in smooth, sine-like curves, capable of indexing of precise oscillation angles, enabling high-precision stone lapping of gothic arc grooves.
Inner diameter shoe centerless support system

Work piece: Ball Bearing Inner Ring

1) Work piece
Four-point contact (gothic arc groove) ball bearing & single-row deep groove ball bearing, single & double row angular contact ball bearing,
2) Machining range
Cassette loader system
O.D.	24.25 - 115 mm
Width	6 - 45 mm
R (Curvature)	3 - 10 mm
Swing arm loading system
O.D.	60 - 125 mm
Width	24 - 40 mm
R (Curvature)	5 - 25 mm
3) Work piece support system
I.D. shoe centerless support system
4) Machining method
Infeed type, Plunge cut
5) Delivery unit inside M/C system
Cassette loader or swing arm system
6) Main spindle unit
Main spindle Frequency	360 - 3,660 rpm Automatic multi-step change-over
Main spindle drive motor	Inverter control
Front/back/left/right movement unit drive motor	AC servomotor
7) Stone oscillation part
Oscillation unit
Frequency	Max. 600 fpm (±15°) Automatic multi-step change-over
Angle of oscillation	Max. 40°(±20°)
Drive Motor	AC servomotor
8) Bore reference unit
Hydraulic drive
9) Pressure roller unit
10) Stone head part
One axis one head type Auto slide type stone head, Pneumatic drive 0 - 0.4MPa
Stone pressurization	Electropneumatic regulator control, Automatic multi-step change-over
11) Tool in / tool out slide unit
160 mm
Drive Motor	AC servomotor drive
12) Approaching slide unit
165 mm
Drive Motor	AC servomotor drive
13) Hydraulic tank unit
Tank capacity	10 L
Pump Motor	3dia. 0.75kW 4P
14) Centralized lubrication tank unit
Automatic centralized lubrication
15) Machine size
(W)1,790×(D)1,995×(H)1,925 mm
16) Machine weight
3,600 Kg

Note : Specifications are subject to change without notice.