SKU: R88M-K20030H-S2
Omron R88M-K20030H-S2 Accurax G5 Servo Motor, 200 W, 200 VAC, 3000 rpm, Keyed Shaft with Brake
Omron R88M-K20030H-S2 Accurax G5 K-series AC servo motor, 200 W, 200 VAC, 3000 rpm, keyed shaft with 24 VDC electromagnetic brake, for 200 W servo axes requiring positive shaft drive.
USD 166.00 per unit, volume discounts available
- In stock, ships in 24h
- 100% genuine Omron
- 1-year manufacturer warranty
- Worldwide delivery
Key Features
- 200 W continuous output at 3,000 rpm rated speed
- 200 VAC class
- 20-bit incremental serial encoder (high resolution)
- Keyed shaft for positive drive under high torque
- 24 VDC spring-applied electromagnetic brake
- 50 mm frame (square flange)
- IP65 body, IP67 shaft seal
- Insulation class B
200 W 200 V K-series servo motor with keyed shaft and brake
The Omron R88M-K20030H-S2 is a 200 W, 200 VAC, 3000 rpm member of the Accurax G5 K-series servo motor family, with a keyed shaft and a 24 VDC electromagnetic brake. The "R88M-K" prefix is the current K-series G5 motor; "20030" is 200 W at 3000 rpm; "H" the 200 V class; "-S2" the keyed-shaft-with-brake variant.
The K-series is the current low-inertia G5 motor family, replacing the older G-series. It uses a 20-bit incremental encoder (1,048,576 counts/rev) which, combined with the G5 drive's high-resolution feedback loop, gives smooth low-speed performance and tight position holding.
The keyed shaft is for applications requiring positive shaft drive — gear-coupled loads, lead-screw couplings, and other high-torque connections where a set-screw on a smooth shaft would be marginal. The 24 VDC brake is spring-applied, electrically released — fail-safe on power loss.
Matching drive: R88D-KN02H-ECT (200 W, 200 V or 400 V, EtherCAT) or R88D-KT02H (200 W, 200 V, analog/pulse). For safety, use the -Z suffix drives. The 50 mm frame keeps the motor compact for small-format machines.
Typical Applications
- 200 W servo axes requiring positive shaft drive
- Gear-coupled or lead-screw-coupled loads
- Vertical-axis / Z-axis applications where load holding is required
- Packaging and assembly machine axes
- Replacement of older G-series motors in existing G5 installations
Buying Checklist
- Match the motor to the drive's voltage class (200 V) and power rating (200 W)
- For a smooth-shaft version, use the -S2 suffix variant (no keyway) — keyed shafts add cost and need a keyway in the coupling
- For EtherCAT, use the R88D-KN02H-ECT; for analog/pulse, use the R88D-KT02H; for safety, add -Z to either
- For vertical-axis duty, the brake is essential — never run a vertical axis on a brake-less motor
- The 20-bit encoder is matched to the G5 drive's high-resolution feedback — do not use this motor with the older SMX/SMY drives
Technical Specifications
| Series | Accurax G5 (R88M-K) |
|---|---|
| Model | R88M-K20030H-S2 |
| Motor type | AC servo motor, low-inertia |
| Rated output | 200 W |
| Rated speed | 3,000 rpm |
| Rated voltage | 200 VAC class (200–230 VAC) |
| Rated torque | 0.64 N·m |
| Peak torque | 1.91 N·m (3× rated) |
| Encoder | 20-bit incremental serial |
| Shaft | Keyed |
| Shaft diameter | 11 mm |
| Brake | 24 VDC spring-applied electromagnetic brake |
| Brake holding torque | ≥ rated torque |
| Frame size | 50 mm square flange |
| Mass | ≈ 0.8 kg (with brake) |
| Protection | IP65 (body), IP67 (shaft) |
| Insulation class | Class B |
| Operating temperature | 0 °C to +40 °C |
Frequently Asked Questions
What drive pairs with this motor?
The R88D-KN02H-ECT (EtherCAT) or R88D-KT02H (analog/pulse) in the 200 W 200 V family. For safety, order the -Z variant.
Why is the shaft keyed?
Keyed shafts are for applications where positive drive is required: gear couplings, lead-screw couplings, and any high-torque load where a set-screw on a smooth shaft would be marginal. The keyway can introduce a small imbalance at very high speeds, but at 3,000 rpm this is not an issue.
Is this motor compatible with the older R88D-GT drives?
No. The R88M-K is the K-series G5 motor and pairs only with the K-series G5 drives (R88D-KN, R88D-KT). For the older SMX/SMY drives, you need the older R88M-G or M-series motors.
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