C.E. Smith Hub Kit 5x4 1/2" 1" to 1-1/16" Tapered Spindle 1.79" Seal - 13516

Keep your boat trailer ready for dependable towing with the C.E. Smith Hub Kit – 13516. Designed for compatible trailer axles featuring a 5-on-4.5-inch wheel bolt pattern, a 1-inch to 1-1/16-inch tapered spindle, and a 1.79-inch grease seal inside diameter, this replacement hub kit provides a practical solution for trailer wheel hub maintenance and repair.

Whether you're replacing a worn hub, repairing a damaged wheel assembly, or performing preventive maintenance, the C.E. Smith 13516 offers an application-specific replacement for properly matched trailer axles.

Key Features

• 5-on-4.5" Bolt Pattern: Designed for trailer wheels with five lug holes arranged on a 4.5-inch bolt circle.

• Tapered Spindle Compatibility: Fits appropriately sized trailer spindles with 1-inch and 1-1/16-inch bearing journals.

• 1.79" Grease Seal ID: Designed for applications requiring a grease seal with a 1.79-inch inside diameter.

• Replacement Hub Kit: Provides a convenient solution for servicing compatible trailer wheel assemblies.

• Five-Lug Configuration: Designed for properly matched five-bolt trailer wheels.

• Boat Trailer Applications: Suitable for compatible marine trailer axle systems.

• Maintenance and Repair: Ideal for replacing worn, damaged, or deteriorating trailer hubs.

• C.E. Smith Quality: Manufactured by an established supplier of marine trailer hardware and accessories.

Reliable Replacement for Boat Trailer Hubs

Trailer wheel hubs are essential components that support the wheels and allow them to rotate smoothly around the axle spindle. Exposure to water, road debris, and repeated towing can contribute to bearing wear, grease seal deterioration, and hub damage.

The C.E. Smith 13516 Hub Kit is designed to restore proper wheel hub operation when installed on a compatible tapered spindle axle.

Its five-lug configuration makes it suitable for trailer wheels requiring a 5-on-4.5-inch bolt pattern, while the specified spindle and grease seal dimensions help identify the correct replacement application.

Specifications

• Brand: C.E. Smith

• Manufacturer Part Number: 13516

• Product Type: Trailer Wheel Hub Kit

• Wheel Bolt Pattern: 5 on 4.5"

• Number of Wheel Lugs: 5

• Spindle Type: Tapered

• Spindle Bearing Journal Sizes: 1" and 1-1/16"

• Grease Seal Inside Diameter: 1.79"

• Application: Compatible Boat and Utility Trailer Axles

In-The-Box Package Contents

• 1x C.E. Smith 5-Stud Painted Cast-Iron Hub with Pre-Pressed Races

• 1x L44643 1" Inner Roller Bearing

• 1x L44649 1-1/16" Outer Roller Bearing

• 1x 1.79" ID Double-Lip Grease Seal

• 1x Zinc-Plated Dust Cap

• 5x 1/2"-20 Wheel Lug Nuts

• 1x Cotter Pin

Frequently Asked Questions (FAQs)

Q: How do I know if my axle uses a 1.79" seal ID instead of a 1.25" seal ID?A: Measure the smooth wear ring (journal) on the back of your axle spindle where the rubber lip of the grease seal rides. If that diameter measures approximately 1-25/32" (1.79 inches), this kit (Part # 13516) is the correct fitment.

Q: What is the difference between a straight spindle and a tapered spindle hub?A: A straight spindle uses identical inner and outer bearings (e.g., two L44649 bearings). A tapered spindle steps down in diameter, using different inner and outer bearings (in this kit, a 1" inner and a 1-1/16" outer bearing).

Q: Do I need to grease the bearings before installation?A: Yes. While the races are pre-pressed into the hub, the loose bearings must be thoroughly packed with a high-quality marine-grade wheel bearing grease prior to installation.

Installation & Compatibility

Before ordering, verify your trailer's existing wheel bolt pattern, inner and outer bearing dimensions, grease seal measurements, spindle configuration, and axle load rating.

Important: This hub kit is intended for the specified tapered spindle configuration. It is not interchangeable with hub kits designed for 1-inch or 1-1/16-inch straight spindles unless all bearing and seal dimensions match.

Installation Note: Inspect the spindle for corrosion, scoring, or excessive wear before installation. Use the correct wheel bearing grease and follow the trailer manufacturer's bearing adjustment and wheel lug torque specifications.

For boat trailers, regularly inspect the hubs and bearings for signs of water intrusion, grease leakage, overheating, and corrosion.