Series 121-1: 2.1 inch PMDC Brush Motor
Product Details
Overview & Features
The series 121-1 (2.1" diameter) permanent magnet DC motor is available to serve the industrial, instrumentation and automotive markets in either open-loop or close-loop applications. Rotor laminations are skewed to provide low cogging torque and no preferred rotor position. Standard catalog stall torque ratings are in the range of 60 to 180 oz-in, while no-load speed ranges from 2,100 to 8,000 rpm max. Encoders with line counts up to 2048 are available. Reliability is enhanced by long life, pre-loaded ball bearings. Special windings, shaft and mounting configurations are available to meet the requirements of OEM custom applications.
- Printers
- Plotters
- Pumps
- Fans
- Cutting Tools
- Medical Devices
- Robotics
- Beverage Dispensing
- Gaming/Recreational Machines
| PART NUMBER | VOLTS NOM | NO LOAD SPEED | NO LOAD CURRENT | LOAD SPEED | LOAD TORQUE | LOAD CURRENT | STALL TORQUE | STALL CURRENT | TERMINAL RESISTANCE | BACK EMF CONSTANT | TORQUE CONSTANT | DIM "A" MAX INCH [mm] |
DIM "B" MAX INCH [mm] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WNL | INL | W | TL | IL | Ts | Is | RT | KE | KT | ||||
| R.P.M. | AMPS | R.P.M. | IN-OZ | AMPS | IN-OZ | AMPS | OHMS | V / KRPM | IN-OZ / A | ||||
| NOM. | MAX. | NOM. | REF. | MAX. | REF. | REF. | NOM. | NOM. | NOM. | ||||
| 121-1121636 | 12 | 2100 | 0.5 | 1400 | 22 | 3.9 | 60 | 9 | 1.6 | 5.2 | 7 | 3.6 [92] |
4.0 [102] |
| 121-1123236 | 3600 | 0.9 | 2900 | 15 | 4.9 | 74 | 19 | 1.1 | 3.1 | 4.1 | |||
| 121-1124836 | 5100 | 1.2 | 4600 | 11 | 5.4 | 79 | 28 | 0.9 | 2.1 | 2.9 | |||
| 121-1241636 | 24 | 2200 | 0.2 | 1500 | 22 | 1.9 | 64 | 5 | 4.9 | 10.6 | 14.4 | ||
| 121-1243236 | 3700 | 0.4 | 3000 | 17 | 2.7 | 90 | 12 | 2.2 | 6.3 | 8.4 | |||
| 121-1244836 | 5500 | 0.7 | 4800 | 13 | 3.1 | 107 | 20 | 1.2 | 4.3 | 5.9 | |||
| 121-1121646 | 12 | 2000 | 0.5 | 1500 | 28 | 4.6 | 105 | 15 | 1.1 | 5.7 | 7.7 | 4.6 [117] |
5.0 [127] |
| 121-1123246 | 3500 | 0.9 | 2900 | 20 | 5.9 | 110 | 26 | 0.5 | 3.2 | 4.3 | |||
| 121-1124846 | 4800 | 1.2 | 4300 | 13 | 5.9 | 96 | 32 | 0.9 | 2.3 | 3.1 | |||
| 121-1241646 | 24 | 2000 | 0.3 | 1600 | 29 | 2.4 | 125 | 9 | 2.9 | 11.4 | 15.5 | ||
| 121-1243246 | 3600 | 0.4 | 2900 | 27 | 3.9 | 158 | 19 | 1.3 | 6.6 | 8.9 | |||
| 121-1244846 | 5200 | 0.7 | 4600 | 24 | 5.3 | 183 | 33 | 0.8 | 4.5 | 6.1 |
Notes:
For Encoder, Add C, D, or M to end of part number. (C=100 CPR, D=500 & M=1000)Dimensional Drawing
Drive Compatibility
Please contact ElectroCraft if the drive you are searching for is not included in the charts below.
| Motor P/N | Cont Stall Current (ARMS) |
Peak Current (ARMS) |
Voltage | Drive Model | ||||
|---|---|---|---|---|---|---|---|---|
| Imperial | Metric | PRO (-CAN) | PRO (-CAT) | CPP-Universal | CPP-EZ | |||
| 121-1121636 | 4.0 | 9.0 | 12 | PRO-A08V48B | PRO-A08V48B | CPP-A06V48A | ||
| 121-1123236 | 4.9 | 19.0 | 12 | PRO-A20V80A | PRO-A20V80A | CPP-A12V80A | ||
| 121-1124836 | 5.4 | 28.0 | 12 | PRO-A20V80A | PRO-A20V80A | CPP-A24V80A | ||
| 121-1241636 | 1.9 | 5.0 | 24 | PRO-A08V48B | PRO-A04V36A | CPP-A06V48A | ||
| 121-1243236 | 2.7 | 12.0 | 24 | PRO-A08V48B | PRO-A08V48B | CPP-A12V80A | ||
| 121-1244836 | 3.1 | 20.0 | 24 | PRO-A20V80A | PRO-A20V80A | CPP-A12V80A | ||
| 121-1121646 | 4.6 | 15.0 | 12 | PRO-A20V80A | PRO-A20V80A | CPP-A12V80A | ||
| 121-1123246 | 5.9 | 26.0 | 12 | PRO-A20V80A | PRO-A20V80A | CPP-A24V80A | ||
| 121-1124836 | 5.9 | 32.0 | 12 | PRO-A20V80A | PRO-A20V80A | CPP-A24V80A | ||
| 121-1241646 | 2.4 | 9.0 | 24 | PRO-A08V48B | PRO-A08V48B | CPP-A06V48A | ||
| 121-1243246 | 3.9 | 19.0 | 24 | PRO-A20V80A | PRO-A20V80A | CPP-A12V80A | ||
| 121-1244836 | 5.3 | 33.0 | 24 | PRO-A20V80A | PRO-A20V80A | CPP-A24V80A | ||
Documents & Downloads
| Download | Description |
|---|---|
| Series 121-1 Data Sheet (US) | Download Data Sheet (PDF) |
ElectroCraft Rapid Delivery Program
Some versions of this product are available via ElectroCraft's Rapid Delivery Program. Lead times for these products are given in working days and stated below. Please note, these lead times may be exceeded during holiday periods or due to unforeseen circumstances. Always contact your local ElectroCraft representative for confirmation of availability.
Rapid delivery products are stocked in locations all over the World. If the product you require is not stocked in your region, you may request accelerated delivery from other areas. Please consult your local representative for more information.
Customers are responsible for all freight charges.
Rapid Delivery to:
The Americas - View Cart
| Part Number | Description | Add to Cart |
|---|---|---|
| 121-1121646 | 2.1" frame PMDC Brush motor, 12VDC winding, 2000RPM no-load speed, 105 oz-in stall torque, 28 oz-in load torque | Contact Sales |
| 121-1123246 | 2.1" frame PMDC Brush motor, 12VDC winding, 3500RPM no-load speed, 110 oz-in stall torque, 20 oz-in load torque | Contact Sales |
| 121-1124846 | 2.1" frame PMDC Brush motor, 12VDC winding, 4800RPM no-load speed, 96 oz-in stall torque, 13 oz-in load torque | Contact Sales |
| 121-1241646 | 2.1" frame PMDC Brush motor, 24VDC winding, 2000RPM no-load speed, 125 oz-in stall torque, 29 oz-in load torque | Contact Sales |
| 121-1243246 | 2.1" frame PMDC Brush motor, 24VDC winding, 3600RPM no-load speed, 158 oz-in stall torque, 27 oz-in load torque | Contact Sales |
| 121-1244846 | 2.1" frame PMDC Brush motor, 24VDC winding, 5200RPM no-load speed, 183 oz-in stall torque, 24 oz-in load torque | Contact Sales |