Y-bearings should not operate at speeds above the limiting speed listed in the product tables. This speed limit is set by the seals. For Y-bearings with grub screws or an eccentric locking collar, the permissible speed is also influenced by the shaft tolerance. When using these bearings on shafts with tolerances other than h6, compare the speed values listed in the product tables with those in table 1. The lower value is the permissible speed.
The permissible speed of Y-bearings with 5-lip seals is valid under the following conditions:
- outer ring temperature ≤ 60 °C (140 °F)
- ambient temperature ≤ 25 °C (80 °F)
- very light to moderate loads (P ≤ 0,05 C)
- cast iron housing
For other conditions, contact the SKF application engineering service.
For applications operating at elevated speeds or when low vibration levels or quiet running are required, SKF recommends to use SKF ConCentra Y-bearings, Y-bearings on an adapter sleeve or Y-bearings with a standard inner ring.