A propshaft bearing is a mechanical element that is used to reduce relative motion and restrict the friction experienced by moving parts to a more manageable level. Some bearings do not only reduce factors such as friction, but they actually assist the alternately desired motion to be undertaken in additional ways too.

1. High elasticity, durable under high partial contact stress.
2. High strength against rolling contact fatigue due to large repetitive contact load.
3. Strong hardness
   4. High abrasion resistance
   5. High toughness against impact load
   6. Excellent dimensional stability