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EJM 011 Frame
The EJM meets a wide range of application requirements and can support servo motors with up to 7.5kW capacity. Solid, hollow and double extended output shaft options allow for flexible machine design. The all-aluminum housing construction offers weight savings of up to 30% with improved thermal horsepower over cast iron.
The EJM series comes vent free and lubricated for life with synthetic oil, making it a reliable, maintenance-free solution. This product is ideally suited for applications within the packaging, material handling and general automation markets
Technical Data
EJM 011 Frame Size, 1 Stage Specifications
| Ratio | Unit | Note | 5 | 7.5 | 10 | 15 | 20 | 25 | 30 | 40 | 50 | 60 |
| Nominal Output Torque | [Nm] | – | 374 | 398 | 395 | 469 | 485 | 474 | 505 | 455 | 427 | 407 |
| Maximum Acceleration Torque | [Nm] | – | 486 | 506 | 477 | 577 | 597 | 580 | 614 | 551 | 514 | 489 |
| Emergency Stop Torque | [Nm] | – | 748 | 796 | 790 | 938 | 970 | 948 | 1010 | 910 | 854 | 814 |
| No Load Running Torque | [Nm] | *1 | 5.83 | 5.83 | 5.83 | 5.83 | 5.83 | 5.83 | 5.83 | 5.83 | 5.83 | 5.83 |
| Nominal Input Speed | [rpm] | – | 2,000 | 2,000 | 2,000 | 2,000 | 2,000 | 2,000 | 2,000 | 2,000 | 2,000 | 2,000 |
| Max Continuous Input Speed | [rpm] | – | 2,000 | 2,000 | 2,000 | 2,000 | 2,000 | 2,000 | 2,000 | 2,000 | 2,000 | 2,000 |
| Maximum Cyclic Input Speed | [rpm] | – | 3,000 | 3,000 | 3,000 | 3,000 | 3,000 | 3,000 | 3,000 | 3,000 | 3,000 | 3,000 |
| Maximum Radial Load | [N] | *2 | 9,780 | 9,780 | 9,780 | 9,780 | 9,780 | 9,780 | 9,780 | 9,780 | 9,780 | 9,780 |
| Maximum Axial Load | [N] | *3 | 5,780 | 5,780 | 5,780 | 5,780 | 5,780 | 5,780 | 5,780 | 5,780 | 5,780 | 5,780 |
| Moment of Inertia | [kgcm2] | – | 25.3 | 19.8 | 17.9 | 16.5 | 16.0 | 15.8 | 15.7 | 15.6 | 15.5 | 15.5 |
| Efficiency | [%] | *4 | 94 | 93 | 92 | 90 | 87 | 84 | 83 | 78 | 73 | 69 |
| Torsional Rigidity | [Nm/arcmin] | – | 28.4 | 28.4 | 28.4 | 28.4 | 28.4 | 28.4 | 28.4 | 28.4 | 28.4 | 28.4 |
| Maximum Torsional Backlash | [Arc-min] | – | ≤ 12 | ≤ 12 | ≤ 12 | ≤ 12 | ≤ 12 | ≤ 12 | ≤ 12 | ≤ 12 | ≤ 12 | ≤ 12 |
| Noise Level | dB [A] | *5 | ≤ 85 | ≤ 85 | ≤ 85 | ≤ 85 | ≤ 85 | ≤ 85 | ≤ 85 | ≤ 85 | ≤ 85 | ≤ 85 |
| Ambient Temperature | [°C] | – | -25~93 | -25~93 | -25~93 | -25~93 | -25~93 | -25~93 | -25~93 | -25~93 | -25~93 | -25~93 |
| Permitted Housing Temperature | [°C] | – | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| Protection Class | – | – | IP55 | IP55 | IP55 | IP55 | IP55 | IP55 | IP55 | IP55 | IP55 | IP55 |
| Lubrication | – | – | Synthetic Oil | Synthetic Oil | Synthetic Oil | Synthetic Oil | Synthetic Oil | Synthetic Oil | Synthetic Oil | Synthetic Oil | Synthetic Oil | Synthetic Oil |
| Service Life | [Hours] | – | 25,000 | 25,000 | 25,000 | 25,000 | 25,000 | 25,000 | 25,000 | 25,000 | 25,000 | 25,000 |
| Weight | [kg] | *6 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 |
- Torque at no load applied to the input shaft at 2,000 rpm
- The maximum radial load the gearbox can accept
- The maximum axial load the gearbox can accept
- The efficiency at the nominal output torque rating
- Measured with no load applied to the input shaft at 2,000 rpm
- Weight may vary slightly between models
EJM 011 Dimensions – Hollow Output Shaft
| Frame Size | Unit | Note | EJM 011 |
| L1 | [mm] | – | 116 |
| L2 | [mm] | – | 130 |
| L3 | [mm] | – | 169 |
| L4 | [mm] | – | 102 |
| L5 | [mm] | – | 51 |
| L6 | [mm] | – | 191 |
| L7 | [mm] | – | 95 |
| L8 | [mm] | – | 250 |
| L9 | [mm] | – | 86 |
| L10 | [mm] | – | 164 |
| L11 | [mm] | – | 89.9 |
| L12 | [mm] | – | 130 |
| L13 | [mm] | – | 197 |
| L14 | [mm] | – | 241 |
| L15 | [mm] | – | 80 |
| L16 | [mm] | – | 20 |
| D1 | [mm] | – | ø127 |
| D2 (h7) | [mm] | – | ø75 |
| T1 | [mm] | – | M8x12 |
| T2 | [mm] | – | M16x24 |
| *1~ | [mm] | *9 | Motor attachment dimensions are made to fit your servo motor. |
EJM 011 Dimensions – Solid Output Shaft
| Frame Size | Unit | Note | EJM 011 |
| L1 | [mm] | – | 116 |
| L2 | [mm] | – | 130 |
| L3 | [mm] | – | 261 |
| L4 | [mm] | – | 70 |
| L5 | [mm] | – | 79 |
| L6 | [mm] | – | 105 |
| L7 | [mm] | – | 45 |
| L8 | [mm] | – | 12 |
| L9 | [mm] | – | 102 |
| L10 | [mm] | – | 51 |
| L11 | [mm] | – | 191 |
| L12 | [mm] | – | 95.5 |
| L13 | [mm] | – | 250 |
| L14 | [mm] | – | 86 |
| L15 | [mm] | – | 164 |
| L16 | [mm] | – | 89.9 |
| L17 | [mm] | – | 130 |
| L18 | [mm] | – | 197 |
| L19 | [mm] | – | 241.5 |
| D1 | [mm] | – | ø127 |
| D2 (h6) | [mm] | – | ø42 |
| T1 | [mm] | – | M8x12 |
| T2 | [mm] | – | M16x24 |
| *1~ | [mm] | *9 | Motor attachment dimensions are made to fit your servo motor. |