How Much Grease?

Bearing: Initial Fill

1. Completely fill interior bearing spaces

2. 30-50% housing packed with grease

  • Ensure that the seals are well lubricated
  • May be > 50% full if operating at low speed

3. Sealed for life / high speed bearings

  • 30% of bearing free space grease (sealed bearing)

Re-greasing Practices

1. Duct should direct grease into bearing rolling element contacts.

2. Bearing housing should have a relief which allows excess grease to escape.

3. Clean grease fitting before adding grease.

4. If possible bearing should be rotating (not true for some electric motors).

5. Bearing and housing should be cleaned and repacked after several relubrication cycles.

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