Maximum rigidity, high torque
External Cylindrical Grinding Spindles
Built for maximum rigidity and high torque. Four-bearing sets in the 7011–7020 range hold micron-level accuracy under heavy loads, covering workpieces from sub-50 mm shafts through to multi-tonne rolls. All models drive through a 1:5 taper.
Speed
1,500 – 4,000 RPM
Power
6.3 – 28 kW
Models
7
Specifications
| Model | Max Speed (RPM) | Power (kW) | Frequency (Hz) | Mounting Ø (mm) | Front Bearing | Interface | Lubrication | Datasheet |
|---|---|---|---|---|---|---|---|---|
| 120HY04Z6.3 | 4,000 | 6.3 | 266.7 | 120 | 7011×4 | 1:5 taper | Grease | On request |
| 120HY06Z9.5 | 4,000 | 9.5 | 266.7 | 120 | 7011×4 | 1:5 taper | Grease | On request |
| 150HY03Z11Popular | 3,000 | 11 | 200 | 150 | 7014×4 | 1:5 taper | Grease | On request |
| 150HY06Z22 | 3,000 | 22 | 200 | 150 | 7014×4 | 1:5 taper | Grease | On request |
| 170HY03Z18 | 3,000 | 18 | 200 | 170 | 7015C/P4×4 | 1:10 taper | Grease | |
| 190HY025Z22 | 2,500 | 22 | 166.7 | 190 | 7020×4 | 1:5 taper | Grease | On request |
| 210HY015Z28 | 1,500 | 28 | 100 | 210 | NN3024+7024×2 | 1:5 taper | Grease | On request |
Model Detail
For shafts under 50 mm diameter.
Mounting Ø
120 mm
Front Bearing
7011×4
Lubrication
Grease
Frequency
266.7 Hz
Key Applications
Small shafts, tool shanks, precision small parts
Industries
Automotive, Tool, Precision Parts
Mounting Ø
120 mm
Front Bearing
7011×4
Lubrication
Grease
Frequency
266.7 Hz
Our most popular OD grinder, covering 50–120 mm diameters.
Mounting Ø
150 mm
Front Bearing
7014×4
Lubrication
Grease
Frequency
200 Hz
Key Applications
Motor shafts, transmission shafts, gear shafts
Industries
Automotive, General Machinery
Mounting Ø
150 mm
Front Bearing
7014×4
Lubrication
Grease
Frequency
200 Hz
Mounting Ø
170 mm
Front Bearing
7015C/P4×4
Lubrication
Grease
Frequency
200 Hz
For 200–300 mm diameter large workpieces. Stable and fast.
Mounting Ø
190 mm
Front Bearing
7020×4
Lubrication
Grease
Frequency
166.7 Hz
Key Applications
Large rolls, wind turbine shafts, marine shafts
Industries
Heavy Industry, Wind Power, Metallurgy
NN3024 heavy bearings for multi-tonne rolls and hydraulic rods.
Mounting Ø
210 mm
Front Bearing
NN3024+7024×2
Lubrication
Grease
Frequency
100 Hz
Key Applications
Heavy rolls, large hydraulic cylinder rods, extra-large shafts
Industries
Steel, Heavy Industry, Hydraulic
Tell Us Your Application
Send us the workpiece, the material and the tolerance. Our engineers will come back with a specific model, not a catalogue.
- Engineering-led support
- Drawings welcome
- Reply within one business day