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EJM 003 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 003 Frame Size, 1 Stage Specifications
| Ratio | Unit | Note | 5 | 7.5 | 10 | 15 | 20 | 25 | 30 | 40 | 50 | 60 |
| Nominal Output Torque | [Nm] | – | 43 | 47 | 48 | 52 | 52 | 55 | 54 | 48 | 47 | 44 |
| Maximum Acceleration Torque | [Nm] | – | 56 | 59 | 51 | 61 | 63 | 67 | 65 | 58 | 57 | 53 |
| Emergency Stop Torque | [Nm] | – | 86 | 94 | 96 | 104 | 104 | 110 | 108 | 96 | 94 | 88 |
| No Load Running Torque | [Nm] | *1 | 0.51 | 0.51 | 0.51 | 0.51 | 0.51 | 0.51 | 0.51 | 0.51 | 0.51 | 0.51 |
| 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] | – | 3,000 | 3,000 | 3,000 | 3,000 | 3,000 | 3,000 | 3,000 | 3,000 | 3,000 | 3,000 |
| Maximum Cyclic Input Speed | [rpm] | – | 4,000 | 4,000 | 4,000 | 4,000 | 4,000 | 4,000 | 4,000 | 4,000 | 4,000 | 4,000 |
| Maximum Radial Load | [N] | *2 | 2,110 | 2,110 | 2,110 | 2,110 | 2,110 | 2,110 | 2,110 | 2,110 | 2,110 | 2,110 |
| Maximum Axial Load | [N] | *3 | 1,770 | 1,770 | 1,770 | 1,770 | 1,770 | 1,770 | 1,770 | 1,770 | 1,770 | 1,770 |
| Moment of Inertia | [kgcm2] | – | 0.75 | 0.64 | 0.61 | 0.58 | 0.57 | 0.57 | 0.56 | 0.56 | 0.56 | 0.56 |
| Efficiency | [%] | *4 | 88 | 86 | 84 | 80 | 75 | 71 | 68 | 60 | 54 | 48 |
| Torsional Rigidity | [Nm/arcmin] | – | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 |
| Maximum Torsional Backlash | [Arc-min] | – | ≤ 30 | ≤ 30 | ≤ 30 | ≤ 30 | ≤ 30 | ≤ 30 | ≤ 30 | ≤ 30 | ≤ 30 | ≤ 30 |
| Noise Level | dB [A] | *5 | ≤ 75 | ≤ 75 | ≤ 75 | ≤ 75 | ≤ 75 | ≤ 75 | ≤ 75 | ≤ 75 | ≤ 75 | ≤ 75 |
| 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 | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 |
- 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 003 Dimensions – Hollow Output Shaft
| Frame Size | Unit | Note | EJM 003 |
| L1 | [mm] | – | 86 |
| L2 | [mm] | – | 100 |
| L3 | [mm] | – | 108 |
| L4 | [mm] | – | 70 |
| L5 | [mm] | – | 35 |
| L6 | [mm] | – | 106 |
| L7 | [mm] | – | 53 |
| L8 | [mm] | – | 136 |
| L9 | [mm] | – | 48.5 |
| L10 | [mm] | – | 87.5 |
| L11 | [mm] | – | 39.1 |
| L12 | [mm] | – | 73 |
| L13 | [mm] | – | 126 |
| L14 | [mm] | – | 133 |
| L15 | [mm] | – | 28.5 |
| L16 | [mm] | – | 8 |
| D1 | [mm] | – | ø90.5 |
| D2 (H7) | [mm] | – | ø25 |
| T1 | [mm] | – | M8x12 |
| T2 | [mm] | – | M8x12 |
| *1~ | [mm] | *9 | Motor attachment dimensions are made to fit your servo motor. |
EJM 003 Dimensions – Solid Output Shaft
| Frame Size | Unit | Note | EJM 003 |
| L1 | [mm | – | 86 |
| L2 | [mm] | – | 100 |
| L3 | [mm] | – | 150.5 |
| L4 | [mm] | – | 28 |
| L5 | [mm] | – | 33 |
| L6 | [mm] | – | 42 |
| L7 | [mm] | – | 22.5 |
| L8 | [mm] | – | 6 |
| L9 | [mm] | – | 70 |
| L10 | [mm] | – | 35 |
| L11 | [mm] | – | 106 |
| L12 | [mm] | – | 53 |
| L13 | [mm] | – | 136 |
| L14 | [mm] | – | 48.5 |
| L15 | [mm] | – | 87.5 |
| L16 | [mm] | – | 39.1 |
| L17 | [mm] | – | 73.5 |
| L18 | [mm | – | 125.5 |
| L19 | [mm] | – | 133 |
| D1 | [mm] | – | ø90.5 |
| D2 (h6) | [mm] | – | ø20 |
| T1 | [mm] | – | M8x12 |
| T2 | [mm] | – | M8x12 |
| *1~ | [mm] | *9 | Motor attachment dimensions are made to fit your servo motor. |