Generation Ⅲ Wheel Hub Bearing Grinding and Superfinishing Line
The automatic grinding and superfinishing line is appropriate for generation Ⅲ wheel hub bearing with a size of ID= φ35-φ80mm, outer ring OD= φ100-φ190mm
Configurations
3MZ1320A Auto inner ring raceway grinding machine for generation Ⅲ wheel hub bearing
3MZ3120A Auto inner ring raceway superfinishing machine for generation Ⅲ wheel hub bearing
3MZ2120A Auto OD grinding machine for generation Ⅲ wheel hub bearing (option)
3MZ1420A Auto outer ring raceway grinding machine for generation Ⅲ wheel hub bearing
3MZ3220A Auto outer ring raceway superfinishing machine for generation Ⅲ wheel hub bearing
Features
1. The grinding speed is set on the display screen. The raceway grinding machine provides diamond roller dressing for inner ring raceway and outer ring raceway, which can dress the radius contour, 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 two oscillation-heads at two stations can superfinishing rough and fine one time. The oilstone pressure, oscillation frequency and workpiece rotational speed can 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 | Auto inner ring raceway grinding machine for ball bearing | Auto inner ring raceway superfinishing machine for ball bearing | Auto OD grinding machine for ball bearing | Auto outer ring raceway grinding machine for ball bearing | Auto outer ring raceway superfinishing machine for ball bearing |
| Machine model | 3MZ1320A | 3MZ3120A | 3MZ2120A | 3MZ1420A | 3MZ3220A |
| Processing range(mm) | ID=φ35-φ80 B=40-100 | ID=φ35-φ80 B=40-100 | OD=φ100-φ190 B=40-100 | OD=φ100-φ190 B=40-100 | OD=φ100-φ190 B=40-100 |
| Processing accuracy | P4/P5/P6 | P4/P5/P6 | P4/P5/P6 | P4/P5/P6 | P4/P5/P6 |
| Work station | One station | Vertical dual-station | One station | One station | Vertical dual-station |
| Process | Support raceway grinding raceway | Diaphragm chuck finishing OD and superfinishing raceway | Support OD grinding OD | Support OD grinding raceway | Diaphragm chuck finishing OD and superfinishing raceway |
| Control system | PLC/CNC 2-axis | PLC/CNC 2-axis | PLC/CNC 2-axis | PLC/CNC 2-axis | PLC/CNC 2-axis |
| Slide | Slides ball screw | Slides ball screw | Slides ball screw | Slides ball screw | Slides ball screw |
| Grinding spindle | Precise hydrodynamic spindle | / | Precise hydrodynamic spindle | Permanent magnet synchronous electric spindle | / |
| Size of grinding wheel (mm) | Ф610×B×Ф305 | / | Ф610×B×Ф305 | Max. Ф70×B | / |
| Speed of grinding wheel | Max 63m/s | / | Max 63m/s | Max 63m/s | / |
| Spindle power | 30kw | / | 22kw | 32kw | / |
| Dresser | Diamond roller dresser | / | Single-point linear dresser | Diamond roller dresser | / |
| Dressing slide | Slides ball screw | / | Slides ball screw | Slides ball screw | / |
| Dressing curve | Straight line and compound curve | Straight line | Straight line and compound curve | ||
| Oscillation frequency | / | 0-1100 /min | / | / | 0-1100 /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 | 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 |
| 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 |
| Machine power | 55KVA | 25KVA | 50KVA | 50KVA | 25KVA |
| Machine weight | 6500kg | 5500kg | 6500kg | 6000kg | 5500kg |
| Machine size (m) | 2.3 × 2.0 × 2.0 | 2.0 × 2.0 × 2.0 | 2.3 × 2.0 × 2.0 | 2.3 × 2.0 × 2.0 | 2.0 × 2.0 × 2.0 |
