RS electric 718-903 Schrittmotor + 440-458 Stirnrad Getriebe

RS Electric 718-903 Stepper Motor + 440-458 Spur Gearbox – Technical Datasheet

Precision Motion Control System for Industrial Automation

This stepper motor and gearbox combination delivers high torque and precise positioning for demanding industrial applications.

Technical Specifications

1. Stepper Motor (718-903)

✔ Type: Hybrid stepper (1.8° step angle)
✔ Holding Torque: 2.1 Nm
✔ Rated Current: 3.0 A/phase
✔ Voltage: 24-48 VDC
✔ Shaft Diameter: 8 mm (keyed)
✔ Protection Class: IP54

2. Spur Gearbox (440-458)

✔ Gear Ratio: 10:1
✔ Max. Output Torque: 50 Nm
✔ Efficiency: ≥92%
✔ Backlash: ≤1°
✔ Housing: Aluminum alloy

3. Combined Performance

✔ Gearbox Output Speed: 0-300 RPM
✔ Positioning Accuracy: ±0.1° (with microstepping)
✔ Mounting: NEMA 23 flange

Key Features & Benefits

✅ High Torque Density – Ideal for direct drives
✅ Low Vibration – Optimized magnetic circuit
✅ Maintenance-Free – Sealed bearings
✅ Plug-and-Play – Pre-assembled motor/gearbox unit

Typical Applications

✔ CNC rotary tables
✔ Packaging indexers
✔ Medical positioning systems
✔ Automated test equipment
✔ 3D printer upgrades

Installation Notes

⚠ Alignment Tolerance: <0.05mm radial misalignment
⚠ Lubrication: Factory-preloaded (10000h service life)
⚠ Thermal Limits: Derate above 50°C ambient

Ordering Information

📦 Motor PN: 718-903
📦 Gearbox PN: 440-458
🔧 Options:

• Different gear ratios (5:1 to 100:1)

• Optical encoder add-on

• Custom shaft configurations

RS Electric
718-903
Stepper motor
440-458 Spur gearbox
Gearmotor
Power transmission
Industrial automation
Precision control
Motion control
Electric motor