M-300 Electric Driveheads
We provide a complete line of electric driveheads for all your production needs.
M-300 Electric Driveheads Specifications
Drive type | Direct |
Shaft type | Hollow |
Drive style | Bearing box |
Input style | Vertical |
Drive ratio | 1:1 |
Backspin control | Hydrodynamic |
M-300 Electric Drivehead Ratings
Max. output torque | 3,500 ft-lbs (4745 Nm) |
Thrust bearing | 350,700 ISO lbf |
Thrust bearing* | 90,9200 Ca90 lbf |
Thrust bearing** | 48,130 750 million cycles lbf |
Maximum speed | 600 RPM |
Horsepower rating*** | 120–300 hp |
Frame type | Dual motor |
Compatible frame size NEMA | 364T, 365T, 404T, 405T, 444T, 445T |
Compatible frame size IEC | 225S, 225M, 250S, 250M, 280S, 280M |
Polish rod size | 1½ or 2 in. (38 or 51 mm) |
Max. operating temperature | 284 °F (140 °C) |
M-300 Electric Drivehead Dimensions (Excluding Motor)
Height with retro stuffing box | 74¾ in. (1900 mm) |
Height with integral stuffing box | 58⅜ in. (1483 mm) |
Width | 42 in. (1067 mm) |
Input shaft size | 4¼ in. (108 mm) |
Weight (no stuffing box) | 2,100 lb (953 kg) |
*Ca90 load rating is for 90 million revolutions. Reducing load by one-half increases life 10 times. Reducing RPM by one-half doubles hours of life.
**Approximately 3 years at 500 RPM
***Maximum horsepower rating based on frame size only. Care must be taken in selecting motor and sheave combinations to ensure input rod torque is not exceeded.