Alinhamento coaxial de redutores sem-fim

1. Pre-Installation Preparation

• Verification: Confirm model, specification, rotation direction, and interface dimensions; inspect for shipping damage and seal condition.
• Foundation: Mounting base must be flat, rigid, and stable; plane levelness ≤ 0.1 mm/m.
• Tools: Dial indicators, feeler gauges, levels, torque wrenches.
• Lubrication: Fill with specified worm gear oil to mid-level on sight gauge.

2. Installation Steps

• Position and level: Place unit on foundation; level housing with shims.
• Tighten foundation bolts: Uniform torque; recheck level after tightening.
• Input connection: Use flexible couplings to motor—avoid belt or gear connections that impose radial load on input bearings.
• Output connection: Maintain coaxial alignment with driven equipment; prefer flexible couplings.
• Accessories: Install breather, sight gauge, temperature monitoring; ensure vent path is clear.

3. Core Step: Coaxial Alignment

Misalignment is the primary cause of noise, bearing failure, and seal leakage—calibrate strictly.

Dual-indicator method:

• Mount dial indicator on driving shaft; probe coupling OD and face on driven side.
• Rotate both shafts one revolution; record max/min radial and face runout.
• Adjust shims and lateral position until deviation is within limits.

Typical targets:

• Radial runout ≤ 0.05 mm
• Face runout ≤ 0.03 mm per 100 mm diameter
• Higher speed/precision applications need tighter limits

Cautions: Never drive fits with hammers—protect bearings. Key fits per standard—too tight causes stress, too loose causes impact wear. Hand-rotate before power-up; confirm smooth, quiet rotation.

4. No-Load and Load Commissioning

• No-load run: Operate 2 hours; check noise, vibration, leakage; bearing temperature rise ≤ 40°C; verify foundation bolts.
• Load run: Increase from light to full load; monitor oil temperature, noise, vibration. After 2 hours full load, oil temperature stable below 80°C with no noise or leak = acceptable.
• Retighten and recheck: After load test, retorque connections and verify alignment.

5. Common Installation Faults

• Noise/vibration: Check alignment first, then foundation, coupling balance, lubrication.
• Shaft seal leak: Inspect seal installation and wear, breather blockage, overfill.
• Rapid temperature rise: Oil level and grade; misalignment also heats bearings.