3984 bearing cone for 12-16K brake drum

Product description: This is a 3984 bearing cone for 12-16K brake drum/ Matching bearing cup 3920.

Key Specifications:

• Bearing Type: 3984 bearing cone

• Matching Cup: 3920

• Axle Capacity: Designed for 12000 lb-16000 lb trailer axles

• Compatible Brake Drum: Matches 12000 lb brake drum–16000 lb brake drum assemblies

• Inner Diameter: 2.63 inches – precision machined for accurate shaft fit

• Material: High-grade bearing steel, through-hardened for exceptional durability and fatigue resistance

• Finish: F20-1 Thin-layer rust-preventive oil

Applications
This 3984 bearing  is widely used in heavy-duty utility trailers, boat trailers, car haulers, and commercial equipment trailers equipped with 12000 lb-16000 lb axles. When paired with the bearing cup 3920, it delivers precise rotation, reduced friction, and dependable performance within 8000 lb brake drum hubs.