Extra Large-Size
Auto grinding and superfinishing line for spherical roller bearing is suitable for bearings that ID=φ200-φ350mm, OD=φ250-φ500mm.
Configurations
3MB2530A Auto inner ring raceway grinding machine for spherical roller bearing
3MB2030A Auto ID grinding machine for spherical roller bearing
3MB3530A Auto inner ring raceway superfinishing machine for spherical roller bearing
3MB2150A Auto OD grinding machine for spherical roller bearing (option)
3MB1450A Auto outer ring raceway grinding machine for spherical roller bearing
3MB1650A-F Auto outer ring raceway cross-axis grinding machine for spherical roller 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 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 two oscillation-heads at one vertical station can superfinishing rough and fine one time for two raceway. 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 | Semi-auto inner ring raceway grinding machine for SRB | Semi-auto ID grinding machine for SRB | Semi-auto inner ring raceway superfinishing machine for SRB | Semi-auto OD grinding machine for SRB | Semi-auto outer ring raceway grinding machine for SRB | Semi-auto outer ring raceway cross-axis grinding machine for SRB |
| Machine model | 3MB2530A | 3MB2030A | 3MB3530A | 3MB2150A | 3MB1450A | 3MB1650A-F |
| Processing range(mm) | ID=φ200-φ350 B=60-180 | ID=φ200-φ350 B=60-180 | ID=φ200-φ350 B=60-180 | OD=φ250-φ500 B=60-180 | OD=φ250-φ500 B=60-180 | OD=φ250-φ500 B=60-180 |
| Processing accuracy | P4/P5/P6 | P4/P5/P6 | P4/P5/P6 | P4/P5/P6 | P4/P5/P6 | P4/P5/P6 |
| Work station | One station | One station | Vertical one station | One station | One station | 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 cross-axis grinding raceway |
| Control system | PLC/CNC 4-axis | PLC/CNC 2-axis | PLC/CNC 2-axis | PLC/CNC 2-axis | PLC/CNC 3-axis | PLC/CNC 2-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 | Permanent magnet synchronous electric spindle |
| Size of grinding wheel (mm) | Ф610×B×Ф305 | Max. Ф120×B | / | Ф610×B×Ф305 | Max. Ф120×B | Cup G.W. |
| Speed of grinding wheel | Max 63m/s | Max 63m/s | / | Max 63m/s | Max 63m/s | Max 45m/s |
| Spindle power | 37 kw | 32 kw | / | 37 kw | 32 kw | 32 kw |
| 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 linear motor(option) | 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 | / | / | 0-800 /min | / | / | / |
| Superfinishing pressure | / | / | 0.1-0.5 MPa | / | / | / |
| Hydraulic system | / | 0.1-0.5 MPa | 0.1-0.5 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 | 60KVA | 60KVA | 40KVA | 60KVA | 60KVA | 60KVA |
| Machine weight | 6500kg | 6500kg | 6000kg | 6800kg | 6500kg | 6500kg |
| Machine size (m) | 2.5 × 2.0 × 2.0 | 2.5 × 2.0 × 2.0 | 2.5 × 2.0 × 2.0 | 2.5 × 2.0 × 2.0 | 2.5 × 2.0 × 2.0 | 2.5 × 2.0 × 2.0 |
