Overview
Our new PreLoad Plus® Constant Contact Side Bearing (CCSB) uses spring technology for constant performance throughout the life of the side bearing. PreLoad Plus® is critical to M976 Truck System performance as it provides consistent preload without degradation compared to elastomer style side bearings.

Key Facts
PreLoad Plus® CCSB

• Bearings use steel springs for long life and consistent preload.
• Steel springs have less that 2% preload decay after 1 million miles of service.
• Long Travel (5/8").
• Steel spring elements.
• Hardened wear surfaces.
• Spring element inspection window.
• Proven service history.
• Three models feature preloads of 4000, 4500, and 5600 lbs.

Benefits

• Bearings help control hunting and control carbody roll.
• Steel springs last over 1 million miles without significant preload loss.
• Improves the ride quality, curve negotiation and overall stability of railcars even at high speeds, saving fuel and wear.
• Retains its design preload longer than elastomeric bearings, so you'll replace/adjust them less often, saving you even more.

Product Line

• PP4000
• PP4500
• PP5600