Sealed Wheel Bearing for ALKO 2051, Knott 250×40/50, Avonride Y

311396 Sealed Bearing – Unitized Hub Bearing for ALKO, Knott & Avonride Trailer Hubs

The 311396 Unitized Sealed Bearing is a premium-quality replacement hub bearing designed to provide reliable, long-lasting performance in a wide range of trailer hub and brake assemblies. Manufactured as a complete pre-assembled unit, this bearing offers simplified installation, reduced maintenance requirements, and dependable operation under demanding towing and industrial conditions.

Featuring a unitized back-to-back cone bearing design, the assembly incorporates a split inner raceway that promotes efficient load distribution and enhanced structural strength. This design helps maintain stability under both radial and axial loads, making it suitable for light and heavy-duty trailer applications.

The bearing is fitted with dual rubber seals to protect internal components from water, dust, dirt, and road contaminants. This fully sealed construction significantly extends bearing life whilst reducing maintenance requirements and downtime.

Widely used across leading trailer axle and brake system manufacturers, the 311396 bearing is compatible with selected AL-KO, Knott, and Avonride hub assemblies, making it a versatile and cost-effective replacement solution for professional operators and trailer owners alike.

• Genuine 311396 unitized hub bearing
• Complete pre-assembled bearing unit
• Fully sealed maintenance-reducing design
• Back-to-back cone bearing arrangement
• Split inner raceway construction
• Excellent load carrying capability
• Dual rubber seals for contamination protection
• Suitable for commercial and industrial applications
• Durable and long-lasting performance
• Easy installation
• Cost-effective replacement solution

• Bearing Type: Unitized Sealed Bearing
• Bearing Reference: 311396
• Design: Back-to-Back Cone Set
• Seal Type: Dual Rubber Seals
• Construction: Pre-Assembled Unitized Bearing

Dimensions

• Internal Diameter: 39mm
• External Diameter: 72mm
• Overall Width: 37mm

Suitable For:

• AL-KO 2051 Euro Hubs
• Knott 250 x 40 Brake Assemblies
• Knott 200 x 50 (10") Brake Assemblies
• Avonride "Y" Type Hubs
• Avonride Hub Assemblies

OEM Cross References:

• AL-KO: 581169
• Knott / Avonride: 45887-11
• Knott / Avonride: 571006

Alternative Part Number:

• MP1814 (Display Packed Version)

• Trailer Hubs
• Braked Trailer Axles
• Caravan Running Gear
• Commercial Trailers
• Plant Trailers
• Horseboxes
• Utility Trailers
• Industrial Equipment
• Agricultural Trailers

• Reduces maintenance requirements
• Provides reliable long-term operation
• Excellent protection against water and dirt ingress
• Simplifies hub servicing and replacement
• Suitable for heavy-duty towing applications
• Cost-effective replacement for worn bearings

• Fully Sealed Construction
• Heavy Duty Design
• Corrosion Resistant
• Maintenance Friendly
• Precision Manufactured
• High Load Capacity
• Long Service Life

Securely packaged and dispatched same working day if purchased by 1 p.m.