Mini-Space Series Installation, Operation & Maintenance Manual

Mini-Space Series Installation, Operation & Maintenance Manual4.1.1.2.1 Lubrication and Bearings(For motors with grease fittings only)The lubricating ability of grease depends primarily onthe type of grease, the size of the bearing, the speedat which the bearing operates and the severity of theoperating conditions. This ability can be lost overtime. The following steps should be followed for bestresults:1. A high grade ball or roller bearing grease shouldbe used. Several recommended greases for standardservice conditions are Polyrex EM (pregreasedby factory), Texaco Polystar, Amoco Rykon Premium#2, Pennzoil Pen 32 Lube or Chevron SRI.2. Lubrication should be performed at the recommendedintervals shown in the table below. Theserecommended intervals are based on average use.See name plate on motor for frame size and ratedspeed.TABLE 1, BLOWER MOTOR LUBRICATION INTERVALSNEMA/(IEC) Frame SizeRated Speed - RPM3600 1800 1200 900Up to 210 incl. (132) 5500 Hrs. 12000 Hrs. 18000 Hrs. 22000 Hrs.Over 210 to 280 incl. (180) 3600 Hrs. 9500 Hrs. 15000 Hrs. 18000 Hrs.Over 280 *2200 Hrs 7400 Hrs. 12000 Hrs. 15000 Hrs.TABLE 2, SERVICE CONDITIONSSeverity of Service Ambient Temperature Atmospheric Hours per DayMaximum Contamination of OperationStandard 40°C Clean, Little 8CorrosionSevere 50°C Moderate dirt, 16 PlusCorrosionExtreme >50°C* or Class H Severe dirt, Abrasive Dust, 16 PlusInsulationCorrosion, Heavy VibrationLow Temperature