With the trend toward 125 ton equipment, tapered roller bearings face an even greater heavy load environment. Loss of lubricant from loosening cap screws can lead to hot box switch out delays or derailments. Stage 8’s locking system provides OVER 20 TIMES the amount of breakaway torque resistance to cap screw loosening rotation compared to the standard locking plate.

The Stage 8 Cap Screw Locking System is currently under review by the AAR WABL (Wheels, Axles, Bearing & Lubrication) Committee, and is scheduled to undergo field testing in unit train service.

The Stage 8 Cap Screw Locking System represents the first innovation over the standard locking plate in over 50 years.