A firm agreed to buy AMF’s bowling products unit.

The New York-based investment firm of Clayton & Dubilier reached an agreement in principle with Minstar, AMF’s parent, to acquire the Bowling Products division for about $225 million. Minstar will retain an equity interest in the purchasing entity. The AMF unit, which had revenue of approximately $190 million in 1985, manufactures a complete line of bowling equipment and operates over 100 bowling centers.