Consistency

The record for most career home runs by a player who never hit 70 in a season is held by Hank Aaron. Of course, Aaron also had the most home runs by a player who never hit 60, and the most by a player who never hit 50, as he hit 755 without ever hitting more than 47 in a season. Other career highs by players who never reached season milestones:

Never hit 40 - Eddie Murray (1977-1997) - 504; career high of 33.

Never hit 30 - Al Kaline (1953-1974) - 399; career high of 29.

Never hit 20 - Ron Fairly (1958-1978) - 215; career high of 19.

Never hit 10 - Tony Taylor (1958-1976) - 75; career high of 9.