About Worm Gearbox for Packing Machine

WORM GEARBOX FOR PACKING MACHINE SPECIFICATIONS

1. General Information

• Type: Worm Gearbox (NMRV / NRV Series)
• Application: Packing, Sealing, Filling Machines
• Mounting Options: Foot Mounted / Flange Mounted / Direct Motor Mount
• Orientation: Horizontal / Vertical

2. Gearbox Sizes (Commonly Used)

• NMRV 030 Small machines
• NMRV 040
• NMRV 050
• NMRV 063
• NMRV 075
• NMRV 090 
• NMRV 0110
• NMRV 0130
• NMRV 0150 

3. Motor Specifications

• Motor Type: 3 Phase Induction Motor
• Power Range: 0.18 kW to 2.2 kW (0.25 HP to 3 HP)
• Voltage: 415V 10%
• Frequency: 50 Hz
• Speed: 1440 RPM (standard)
• Duty: S1 Continuous Duty

4. Gear Ratio

• Standard Ratios:
  • 10:1
  • 15:1
  • 20:1
  • 25:1
  • 30:1
  • 40:1
  • 50:1
  • 60:1
  • 80:1
  • 100:1
• Typical Use: 20:1 to 40:1 for packing machines

5. Output Parameters

• Output Speed: 20 RPM to 100 RPM
• Output Torque: 50 Nm to 500 Nm

6. Gear Materials

• Worm Shaft: Case hardened alloy steel
• Worm Wheel: Phosphor bronze

7. Housing

• Material:
  • Aluminium (for sizes up to 090)
  • Cast Iron (for heavy-duty applications)
• Design: Compact and lightweight

8. Shaft Configuration

• Output Shaft:
  • Hollow shaft (standard)
  • Solid shaft (optional)
• Mounting: Direct coupling with machine

9. Lubrication

• Type: Oil lubricated (factory filled)
• Oil Grade: ISO VG 320

10. Efficiency

• Efficiency Range: 70% to 90%
  (Lower efficiency at higher ratios)

11. Special Feature

• Self-Locking Capability:
  Prevents reverse rotation ideal for packing machines

12. Noise & Operation

• Low noise operation
• Smooth and stable performance

13. Protection

• IP Rating: IP55
• Oil seal protection against leakage