3A/4A
Spring beam trailer mechanical suspension
The 3A/4A series is a spring beam mechanical suspension designed for trailer applications, with options for three or four axles. Available as kits only (without axles), it features 5-inch round axle seats or 5¾-inch round axle seats, providing flexibility for various trailer configurations.
Features and Benefits
3A Series - 3 axle
4A Series - 4 axle
Available as kits only without axles
Specifications
Available with 5" round axle seats or 5 3/4" round axle seats. Kits only, no axles assembled.
3A750 - 75,000 lb. capacity
3A900 - 90,000 lb. capacity
4A100 - 100,000 lb. capacity
4A120 - 120,000 lb. capacity
