Not suitable for wheel bearings. I have used this product (I liked the little mini grease gun) to "refill" my trailer bearings. After 100 miles I had slush (thank goodness I had to stop for something and I saw it) because it mixed with the existing lube and made it worse. I had to clean and reseal the bearing. Wheel bearing grease requires this classification "NLGI #2 Grade GC-LB". "B" means that it is suitable for wheel bearings.