SAE J1731-2017 PDF

Scope: This SAE Recommended Practice describes STANDARD-DUTY and EXTREME-DUTY Pilot Bearing requirements and sizes for class 6@ 7@ and 8 on-highway trucks and buses that use diesel engines and manual transmissions. The recommendations may apply to a wide range of other pilot-bearing applications@ such as agricultural@ industrial@ and construction equipment. Purpose??This document establishes standards for pilot-bearing construction@ tolerances@ installation dimensions@ and operating characteristics. It is intended to standardize installation dimensions for engine and transmission manufacturers@ and identify minimum operating characteristics to ensure satisfactory bearing life in pilot-bearing application environment.

SAE J1731-2017 history

2017 SAE J1731-2017 Pilot Bearings for Truck and Bus Applications
2001 SAE J1731-2001 Pilot Bearings for Truck and Bus Applications
1995 SAE J1731-1995 Pilot Bearings for Truck and Bus Applications@ Recommended Practice