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2000 lb Idler Hub, 5 on 4.5 Bolt Pattern, large flange
Safe Trailer Hub for Reliable Performance
Compatible with Various Trailer Axles
Easy-to-Maintain Trailer Idler Hub
how to measure

2000 lb Idler Hub, 5 on 4.5 Bolt Pattern, Large Flange

17-155
Estimated delivery dates: Apr 6, 2025 - Apr 8, 2025

$25.44 $59.99 58% OFF

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2000 lb Idler Hub, 5 on 4.5 Bolt Pattern, large flange
2000 lb Idler Hub, 5 on 4.5 Bolt Pattern, Large Flange
$25.44 $59.99 58% OFF

Trailer Axle Hub and Drum FAQ

Downloadable Files

Files that will help teach you or guide you in finding the measurements for your Trailer Axles. 

4, 6, 8 Bolt Pattern
5 Bolt Pattern (option 1)
5 Bolt Pattern (option 2)
Printable Bolt Pattern Finder

Answer:

•Identify the Bolt Count: Start by counting the number of bolt holes (e.g., 4, 5, 6, or 8).

•Measure the Pitch Circle Diameter (PCD):

For even bolt patterns, measure from the center of one bolt directly across to the opposite bolt.

For odd-number patterns, measure from the. center of one, skip one, to the center outside of the third.

• Check Consistency: Double-check your measurements to ensure that your wheel or drum will fit properly.

• Visual Inspection: Look for cracks, rust, or uneven wear on the hub face and drum.

• Feel for Vibration or Wobbling: When driving, any noticeable vibrations or misalignment can indicate that the hub or drum is warped or worn.

• Regular Inspection: Check the hub and drum at least once per season or before heavy towing. Look for signs of wear, rust, or damage.

• Cleaning: Keep the surfaces clean to remove any dirt or corrosion that could affect fitting and performance.

• Lubrication: Apply grease where recommended to reduce friction and prevent rust, following the manufacturer’s guidance.

• Professional Servicing: If you notice misalignment or significant wear, consult a trailer specialist to resurface or replace the components.

• Improper Fitment: A wrong bolt pattern or hub face measurement can result in wheels or brake drums not fitting securely.

• Poor Performance: Misalignment may lead to vibrations, increased tire wear, or even brake issues.

• Safety Risks: Ultimately, incorrect measurements can compromise the trailer’s handling and increase the risk of accidents during towing.

• Corrective Action: If you discover issues, it’s important to re-measure, adjust, or consult a professional for repairs or replacement to ensure a safe setup.

Description

2000 lb Idler Hub, 5 on 4.5 Bolt Pattern, Large Flange.

Allows for wheel sizes of 13″ or more.

SKU: 17-105

This 2000 lb idler hub is designed for trailers requiring reliable support. Compatible with Dexter E-Z Lube and etrailer Easy Grease axles featuring BT8 spindles, it includes all necessary components like bearings (L44643), races (L44610), a seal (34823), a grease cap, and lug nuts. The hub’s robust iron construction with a zinc-enriched finish ensures durability and protection against corrosion.
This 2000 lb idler hub is designed for trailers requiring reliable support. Compatible with Dexter E-Z Lube and Easy Grease axles, it includes all necessary components like bearings (L44649), races (L44610), a seal (10-60), a grease cap, and lug nuts. The hub’s robust iron construction with a zinc-enriched finish ensures durability and protection against corrosion.

2000 lb Idler Hub Description

The 2000 lb idler hub is designed for use on trailer idler axles and fits 2,000-lb Dexter E-Z Lube and etrailer Easy Grease axles. This hub assembly includes bearings, races, seal, grease cap, and lug nuts, ensuring a complete kit that’s ready to install out of the box.

2000 lb Idler Hub Features

  • Trailer Hub Assembly: Fits idler axles for 2000 lb trailers.
  • Included Components: Bearings, races, seal, grease cap, and lug nuts are included.
  • Dexter E-Z Lube & Easy Grease Compatibility: The grease cap is specially designed to work with Dexter E-Z Lube or etrailer Easy Grease axles for quick and easy lubrication.
  • No Disassembly Required: Remove the rubber plug to access the zerk fitting on the spindle without needing to disassemble the hub.
  • Durable Construction: Sturdy iron construction with a zinc-enriched paint finish for longevity and protection against corrosion.
  • Pre-Greased Idler Hub: Easy to install as it comes pre-greased, eliminating the need to pack bearings.

2000 lb Idler Hub Specifications

 

Product Specifications:

  • Axle Capacity: 2,000 lbs.
  • Bolt Pattern: 5 on 4 1/2″
  • Hub Height: 4 1/8″
  • Flange Diameter: 6 1/2″
  • Inner/Outer Bearing (included): L44643 (1″)
  • Grease Seal Inner Diameter: 1.25″
  • Grease Cap Size: 1.98″
  • Wheel Size: 13″ and up

2000 lb Idler Hub Bearing and Seal Information

  • Bearings: Inner bearing: L44646 (1.063″ inner diameter), Outer bearing: L44646 (1.063″ inner diameter)
  • Races: Inner race: L44610, Outer race: L44610
  • Grease Seal: 10-60 with 1.5″ ID 1.987″ OD

E-Z Lube and Easy Grease-Compliant Hub for Simple Lubrication

The grease cap on this 2000 lb Idler Hub is specially designed to work with your Dexter E-Z Lube or Easy Grease axle. To lubricate the bearings, remove the plug on the grease cap, attach a grease gun to the zerk fitting on the end of the spindle, and inject the grease. This method helps prevent corrosion by allowing you to lubricate the bearings without disassembling the hub.

Usage & Maintenance Tips

  • Trailers Suitable for Use: Ideal for various trailer types including utility, flatbed, and cargo trailers.
  • Symptoms of a Failing Idler Hub:
    • Noisy operation (squeaking or grinding sounds)
    • Vibration when the trailer is in motion
    • Visible wear on the hub assembly
    • Inability to properly grease the bearings due to corrosion or damage
  • Maintenance Tips:
    • Regularly inspect the hub for any signs of wear, such as rust, cracks, or excessive play.
    • Lubricate the bearings every 6 months or according to manufacturer recommendations.
    • Check and tighten lug nuts periodically to ensure proper fitment and safety.

Certifications

This product is CSA and QAI certified, ensuring compliance with industry standards for quality and safety. For more information, visit the following websites:

 

Additional information

Weight 7.5 lbs
Dimensions 8 × 7 × 5 in

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Additional information

Weight 7.5 lbs
Dimensions 8 × 7 × 5 in

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What you need to know before ordering

Simple Instructions for Measuring a Trailer Hub and Drum Bolt Pattern and Other Considerations Before Purchasing a Replacement

Part 1: Measuring the Bolt Pattern

Understanding your trailer’s bolt pattern is crucial when selecting a replacement hub and drum. Here’s how to measure it:

Step 1: Identify the Number of Lug Holes

• Count the Lug Holes: Determine how many bolt holes (lugs) are on your hub or wheel. Common configurations are 4, 5, 6, or 8 lug holes.

Step 2: Measure the Bolt Circle Diameter (BCD)

The method to measure the bolt circle diameter varies depending on whether you have an even or odd number of lugs.

For Hubs with an Even Number of Lugs (4, 6, 8 lugs):

1. Measure Across the Center:

• Place a ruler or measuring tape over the center of the hub.

• Measure from the center of one lug hole directly across the hub to the center of the opposite lug hole.

2. Record the Measurement:

• This distance is your bolt circle diameter.

Example: If the distance between opposite lug holes is 4 inches, your bolt pattern is “4 on 4” (4 lugs on a 4-inch circle).

For Hubs with an Odd Number of Lugs (5 lugs):

1. Measure from Center to Outer Edge:

• Measure from the center of one lug hole to the outer edge of a lug hole that is directly across from it (skipping one lug hole in between).

2. Alternatively, Use the Chord Measurement Method:

• Measure the Distance (D) between two adjacent lug holes (center to center).

• Use a Multiplier: Multiply this distance by 1.7012 to calculate the bolt circle diameter.

text{Bolt Circle Diameter (BCD)} = D times 1.7012

3. Record the Measurement:

• Round to the nearest common bolt pattern size (e.g., 4.5 inches, 5 inches).

Example: If the distance between adjacent lug holes is 2.75 inches:

text{BCD} = 2.75” times 1.7012 approx 4.68”

This approximates a 5 on 4.5” bolt pattern.

Step 3: Determine the Bolt Pattern Notation

• Express the Bolt Pattern: Use the format “[Number of Lugs] on [Bolt Circle Diameter]”.

Examples:

• “4 on 4” means 4 lugs on a 4-inch circle.

• “5 on 4.5” means 5 lugs on a 4.5-inch circle.

Part 2: Other Important Considerations Before Purchasing a Replacement Hub and Drum

To ensure safety and compatibility, consider the following factors before buying a replacement hub and drum:

1. Axle Capacity

• Know Your Axle Rating: Check your trailer’s axle weight capacity (e.g., 2,000 lbs, 3,500 lbs).

• Match the Hub and Drum: Purchase a hub and drum assembly rated for the same capacity.

2. Spindle Type and Bearing Sizes

• Identify Spindle Type: Determine if you have a straight or tapered spindle.

• Check Bearing Numbers:

• Remove the hub to access the bearings.

• Look for part numbers stamped on the bearings (e.g., L44649, L68149).

• Measure Bearings if Needed:

• Inner Bearing ID: Diameter of the inner bearing opening.

• Outer Bearing ID: Diameter of the outer bearing opening.

• Ensure Compatibility: The new hub must accommodate the same bearing sizes.

3. Grease Seal Size

• Check Seal Numbers: Look for part numbers on the grease seal.

• Measure if Unmarked:

• Inner Diameter (ID): Diameter where the seal fits over the spindle.

• Outer Diameter (OD): Diameter where the seal fits into the hub.

• Match Seal Size: The new grease seal must match these dimensions to prevent leaks.

4. Brake Type and Compatibility

• Determine Hub Type Needed:

• Idler Hub: For trailers without brakes.

• Hub and Drum Assembly: For trailers with drum brakes.

• Brake Size Compatibility:

• Ensure the drum matches your brake assemblies (common sizes are 7”, 10”, 12”).

• Check Brake Hardware:

• Verify that the hub is compatible with your existing brake components.

5. Wheel Compatibility

• Confirm Bolt Pattern: Ensure the new hub’s bolt pattern matches your wheel.

• Check Wheel Stud Size:

• Common stud sizes are 1/2”-20 or 9/16”-18 threads.

• Center Bore and Offset:

• Make sure the hub’s center bore fits your wheel.

• Consider wheel offset if applicable.

6. Spindle Type: EZ-Lube vs. Standard

• Identify Spindle Type:

• EZ-Lube Spindle: Has a grease fitting on the end for easy lubrication.

• Standard Spindle: Requires manual greasing.

• Select Compatible Components:

• Choose hubs and dust caps designed for your spindle type.

7. Material and Finish

• Environmental Considerations:

• For marine or coastal use, consider galvanized or stainless steel hubs to resist corrosion.

• Durability:

• Quality materials extend the life of your hub and drum.

8. Tools and Supplies Needed

• Essential Tools:

• Wrenches or sockets for lug nuts and spindle nuts.

• Torque wrench for proper tightening.

• Pliers or cutters for cotter pins.

• Supplies:

• High-temperature wheel bearing grease (if not pre-greased).

• Grease gun (for EZ-Lube spindles).

• Safety equipment (gloves, eye protection).

9. Installation Tips

• Proper Torque:

• Follow manufacturer specifications for tightening lug nuts and spindle nuts.

• Safety Checks:

• After installation, check for proper wheel rotation and absence of play.

• Regular Maintenance:

• Periodically inspect and grease bearings to extend the life of your hubs.

10. Consult Manufacturer Specifications

• Owner’s Manual:

• Review your trailer’s manual for specific requirements.

• Professional Advice:

• If unsure, consult with a trailer technician or dealer.

By carefully measuring your bolt pattern and considering these factors, you’ll ensure that you purchase the correct replacement hub and drum for your trailer, leading to safe and reliable performance on the road.