ASE Suspension and Steering (A4) Practice Test 2025 – All-in-One Resource to Master Your Certification!

The most normal end-play specification for tapered roller front-wheel bearings typically ranges from 0.0010" to 0.0050". This specification is critical for ensuring that the bearings function correctly and efficiently under load. A properly set end-play allows for thermal expansion, maintains proper lubrication, and minimizes the risk of overheating and premature wear.

In this range, the end-play is tight enough to prevent excessive movement, which can lead to increased wear and failure, but also provides enough clearance to account for any thermal expansion and allows the bearings to operate smoothly. This balance is essential for the overall performance, handling, and safety of the vehicle.

Other options listed either represent too little or too much end-play, which does not align with typical specifications established for quality vehicular performance. The correct answer, therefore, reflects industry standards that ensure effective functionality and longevity of the bearing system in vehicles.