Extra Large-Size
Semi-auto grinding and superfinishing line is suitable for deep groove ball bearing, angular contact ball bearings, joint bearings and clutch release bearing that have a seize of ID=φ200-φ350mm, OD=φ250-φ500mm.
Configurations
3MB1330A Semi-auto inner ring raceway grinding machine for ball bearing
3MB2030A Semi-auto ID grinding machine for ball bearing
3MB3130A Semi-auto inner ring raceway superfinishing machine for ball bearing
3MB2150A Semi-auto OD grinding machine for ball bearing (option)
3MB1450A Semi-auto outer ring raceway grinding machine for ball bearing
3MB3250A Semi-auto outer ring raceway superfinishing machine for ball bearing
Features and Benefits
1. The grinding speed is set on the display screen. The raceway grinding machine provides single-point straight line dressing, Single-point diamond radius dressing or diamond roller dressing for inner ring raceway and outer ring raceway, which can dress the radius contour, straight line, and crowning amount 0~40 micron adjustable.
2. Constant speed grinding, with clamping electric current at 0.1~2.0A adjustable, with "High-Low" switch.
3. The superfinishing machine have one oscillation-head at one verticalstation can superfinishing rough and fine one time. The oilstone pressure, oscillation frequency and workpiece rotational speedcan be set on the display screen.
4. Full enclosure with three sliding doors, electrical cabinet has an IP54 protection level sealed structure and is equipped with a constant-temperature air conditioner.
5. The modular kit system enables customer-specific designs.
| No. | ||||||
| Machine name | Semi-auto inner ring raceway grinding machine for ball bearing | Semi-auto ID grinding machine for ball bearing | Semi-auto inner ring raceway superfinishing machine for ball bearing | Semi-auto OD grinding machine for ball bearing | Semi-auto outer ring raceway grinding machine for ball bearing | Semi-auto outer ring raceway superfinishing machine for ball bearing |
| Machine model | 3MB1330A | 3MB2030A | 3MB3130A | 3MB2150A | 3MB1450A | 3MB3250A |
| Processing range(mm) | ID=φ200-φ350 B=25-90 | ID=φ200-φ350 B=25-90 | ID=φ200-φ350 B=25-90 | OD=φ250-φ500 B=25-90 | OD=φ250-φ500 B=25-90 | OD=φ250-φ500 B=25-90 |
| Processing accuracy | P2/P4/P5/P6 | P2/P4/P5/P6 | P2/P4/P5/P6 | P2/P4/P5/P6 | P2/P4/P5/P6 | P2/P4/P5/P6 |
| Work station | One station | One station | Vertical one station | One station | One station | Vertical one station |
| Process | Support raceway grinding raceway | Support raceway grinding ID | Support ID superfinishing raceway | Support OD grinding OD | Support OD grinding raceway | Support OD superfinishing raceway |
| Control system | PLC/CNC 3-axis | PLC/CNC 2-axis | PLC/CNC 3-axis | PLC/CNC 2-axis | PLC/CNC 3-axis | PLC/CNC 3-axis |
| Slide | Slides ball screw | Slides ball screw | Slides ball screw | Slides ball screw | Slides ball screw | Slides ball screw |
| Grinding spindle | Precise hydrodynamic spindle | Electric spindle | / | Precise hydrodynamic spindle | Electric spindle | / |
| Size of grinding wheel (mm) | Ф610×B×Ф305 | Max. Ф120×B | / | Ф610×B×Ф305 | Max. Ф120×B | / |
| Speed of grinding wheel | Max. 63m/s | Max. 63m/s | / | Max. 63m/s | Max. 63m/s | / |
| Spindle power | 30kw | 32kw | / | 30kw | 32kw | / |
| Dresser | Single-point diamond radius dresser or diamond roller dresser | Single-point linear dresser | / | Single-point linear dresser | Single-point diamond radius dresser or diamond roller dresser | / |
| Dressing slide | Slides ball screw | Slides ball screw | / | Slides ball screw | Slides ball screw | / |
| Dressing curve | Straight line, compound curve | Straight line | Straight line | Straight line, compound curve | ||
| Oscillation frequency | / | / | 0-1100 /min | / | / | 0-1000 /min |
| Superfinishing pressure | 0.1-0.5 MPa | 0.1-0.5 MPa | ||||
| Hydraulic system | / | 1.6-3.0 MPa | / | 1.6-3.0 MPa | 1.6-3.0 MPa | 1.6-3.0 MPa |
| Pneumatic system | 0.3-0.5 MPa | 0.3-0.5 MPa | 0.3-0.5 MPa | 0.3-0.5 MPa | 0.3-0.5 MPa | 0.3-0.5 MPa |
| Cooling system | 0.2-0.5 MPa | 0.2-0.5 MPa | 0.2-0.5 MPa | 0.2-0.5 MPa | 0.2-0.5 MPa | 0.2-0.5 MPa |
| Machine power | 55KVA | 60KVA | 25KVA | 55KVA | 60KVA | 28KVA |
| Machine weight | 6500kg | 6500kg | 5500kg | 6800kg | 6500kg | 5500kg |
| Machine size (m) | 2.5 × 2.0 × 2.0 | 2.5 × 2.0 × 2.0 | 2.0 × 1.8 × 1.8 | 2.5 × 2.0 × 2.0 | 2.5 × 2.0 × 2.0 | 2.0 × 1.8 × 1.8 |
