Medium-duty trucks are built with muscle to tackle heavy loads without a hitch. They are designed to take a beating as keeping them in motion is critical to getting the job done.

BCA Bearings, powered by NTN, a long-time trusted OE supplier to this market, is proud to be providing aftermarket solutions. We have the durable bearing products you need to keep Class 4-6 trucks on the road and carrying the load. Our medium-duty line has you covered with wheel hub assemblies, tapered roller bearings and seals. View the features and benefits of each listed below.

Wheel Hub Assemblies

Custom Designed Seals

All BCA hubs use custom designed seals with premium materials to prevent contamination and extend bearing life in even the worst conditions

Premium Wheel Studs

Forged steel provides high strength and easier installation

Precision Cage Design

Rolling elements’ cages reduce friction by keeping rolling elements spaced correctly, resulting in reduced operational temperatures and preventing damage

OE-Style ABS Plugs

Application-specific components to ensure proper connection and performance of the ABS module and sensors

Premium Grease

Pre-lubricated bearings packed with specialized grease provide long life and low operational temperatures

World Class Engineering

Application unique engineering design reduces noise, vibration, and harshness (NVH), helping to avoid unnecessary comebacks




Multi-Contact Seal and Grease Lips

Keep lubricants in and contaminants out, providing continuous lubrication to reduce wear and aging

Superior Operation in Wide Temperature Ranges

Provides optimal performance and long life

Low Seal Swell

Reduces torque and improves vehicle gas mileage



Wheel Bearings

Crowned Precision Rollers and Raceways

Ensure low friction, even load distribution, and extended bearing life

Case-Hardened Bearing Steel

For excellent endurance against shock loads

Heat-Treated Rollers

For extended bearing life


Download the Medium-Duty Wheel End Product information sheet.